A Brief Introduction of Heat Sink

What is Heat Sink?


Heat sink is a cooling device for electronic components easy to heat in electrical equipments. Most of them are made of aluminum alloy, brass or bronze into plates or flakes, such as the sizable heat sink computer CPU central processing unit needs, and power amplifier tubes of power tubes, switching transistors, and power amplifiers in televisions need.



Generally, when the heat sink is being used, the contact surface between electronic components and heat sink should be coated with a layer of thermal grease, enabling more effective conduction of heat from components into heat sink and distribution of heat from components into the air.
Classification of Heat Sink



As far as heat sink material, thermal conductivity properties of each material are different. As heat-conducting property flows from high to low, namely, silver, copper, aluminum, steel. However, silver costs much for heat sink. So it is the best option to use copper. Although aluminum heatsink is much cheaper, apparently its thermal conductivity property is worse than copper's (about 50% of copper's).



Nowadays, the common heat sink material is copper and aluminum. Both of them have advantages as well as disadvantages. Thermal conductivity of copper is good, but it is more expensive with higher processing difficulty, and over large weight (many pure copper heat sinks' weight exceeds the weight limit of CPU). Besides, copper heat sink enjoys smaller heat capacity, and prone to oxidation. On the other side, pure aluminum is too soft to use so that only aluminum alloy can provide enough hardness. The advantages of aluminum alloy are cheap and in light weight, but the disadvantage is its bad thermal conductivity. Some heat sinks take what they need. Thus some aluminum heatsinks are implanted a piece of copper plate.
For ordinary users, the aluminum heat sink has been sufficient to meet their thermal requirements. In the North, the heating radiator for getting warm in winter is also known as the heatsink.



Heat sink occupies an important role in the composition of radiator. Other than active cooling of the fan, to evaluate a heat sink largely depends on the heat absorption capacity and heat conduction of the heat sink itself.

Aluminum Extruded Heat Sink



This is excellent material widely used in modern thermal dissipation. Most of the industry is using 6063 T5 high-quality aluminum, whose purity can reach more than 98%, heat conduction ability is strong, density is small, and price is low so that it has been favored by the major manufacturers. Based on hot resistance of Intel and AMD CPU and considerations of their heat productivity, aluminum extrusion manufacturers develop corresponding mold, heat up aluminum ingots to a certain temperature, make its physical form changed, and then get various types of heat sink raw materials we want. At last, we can use them after cutting, grooving, polishing, burring, cleaning, and surface processing.



www.heatsinkvet.com is a committed professional manufacturer of 3C (computers, communications, consumer electronics) and industrial heatsink. Our productive technologies include the following entire production and processed progress: Cutting off, cutting groove, stamping, drilling, tapping, CNC, relieving teeth, drawing bench, polishing, sandblasting, anode, assembly, etc. We sincerely hope to provide best products and service to customers. Welcome to browse our website!



The article is come from:http://www.soundspeakers.cn/index.php/a-brief-introduction-of-heat-sink.htm
More about my article, you also can read:http://industrialaterials.blog.fc2.com

Daily Maintenance of Transformers

Allowed Temperature of Transformers



When transformer is operating, the coil and core generates the copper and iron losses, and these losses turn into heat energy, so that the core of the transformer and the coil temperature rises. If the temperature for a long time exceeds the allowable values then it causes the insulation to gradually lose their mechanical flexibility of insulation aging. During transformer operation when the temperature of each portion is not the same, the maximum temperature of the coil, followed by a temperature of the core, the insulating oil temperature is lower than the temperature of the coil and core. Allowable temperature in the operation of the transformer top oil temperature should be checked.ei core transformer of Class A is in the normal operation, when the ambient air temperature of up to 400C, the limit operating temperature of the transformer windings is 1050C.

Allowable Temperature Rise of the Transformer



Only monitor the upper layer of oil temperature in the running mains isolation transformer, this cannot guarantee the safe operation of the transformer, and must also monitor the temperature difference between the top oil temperature and the cooling air, - that the temperature rises. The temperature of the transformer and the ambient air temperature difference, referred to as the temperature rise of the transformer. A grade insulation transformer, when the maximum temperature is around 400C, the national standards winding temperature rise to 650C, the top oil allowable temperature rise to 550C. The transformer temperature does not exceed the specified value, will be able to ensure safe operation within the specified operating life of the transformer at rated load.

The Overload of the Transformer



The overload stars normal accident loads and overload both cases. Normal overload is caused by the case of the normal power supply, the increase in electricity consumption. Transformer temperature will rise, and resulting in the transformer insulation accelerated aging and reduces the life of, and therefore, under normal circumstances we do not allow the load operation. The special case of the transformer in a short time overload operation, but shall not exceed the rated load in winter 30%, summer shall not exceed 15% of the rated load. In addition, it should be based on the temperature rise of the transformer and specified by the manufacturer to determine the overload capacity of the transformer. When the power system or user substation has an accident, in order to ensure a continuous power supply to the vital equipment, it allows the transformers short time overload operation.



www.mainstransformer.com is an advanced enterprise specializing in kinds of mains transformer producing. As the professional manufacturer of customized mains transformer especially low transformers and circuit board transformer, we can produce customized mains transformers in different power and output / input current.

The article is come from:http://www.chinaphoneparts.com/index.php/daily-maintenance-of-transformers.htm

Development Focus of China's Fastener Industry

Chinese Industrial Fasteners Status Quo



Fasteners is not the production fixed product, but to provide users with the processing fastening services; technology and the process level is of course important, but more important is the level of management, because every aspect of the production has the potential to create profits. China is lags far behind than many foreign enterprises in the management aspect, we only have equipment and technology, there is no high-quality personnel and management protection, then the fasteners available in large quantities is not possible to achieve. The export situation in 2012 is more severe. Therefore, the fastener enterprises should have a clear understanding of and should pay attention to the adjustment of export regions, and to explore potential markets in South America, North America, Asia, Southeast Asia and other regions.

China Fastener Industry Development in 2012



Fastener industry, in 2012 main theme of its development "to maintain growth, note the people's livelihood and promote employment," will continue to show the first low after rise and then a new increase" situation. From the fourth quarter of 2011 to the first half of 2012, subject to objective environmental impact,stainless steel wood screws industry development speed will slow down, fastener companies must adhere to innovation and adjustment and transformation, we must continue to closely rely on the car, the new energy, aerospace, shipbuilding, urban transport, IT, electronic appliances, construction and other key industries, to accelerate the fastener product optimization and upgrade and to promote the healthy and steady development of the whole fastener industry. Fastener Association Forecast: in 2012,bolt and nuts fasteners total output is expected to reach 680 million tons. But there is a process, fasteners production enterprises should now plan to consider funds for innovation and technological upgrading, to improve equipment intelligent level, and to enhance the online detection level.

Chinese Fasteners Industry Development Issues



Compared with the United States, Japan and other manufacturing powers, there are still large gaps in China's fastener industry. American enterprise is characterized by large-scale, automated, digital production, CNC technology, network technology and digitization control technology is mature, from design to all sectors of production sharing, there is a high degree of production management information. Specific performance: First automated production is more secure, reliable, easy maintenance of the entire bolt, nut production lines running; safety awareness presses installed safety grating; improve the management level of the company's management information system application and production efficiency, enterprises have their own management information systems, supply of raw material suppliers material with a bar code; Fourth, although the relatively large size of the business is big, but the product line is not great, and the production volume of the product is great.



www.stainlesssteel-fasteners.com is a professional manufacturer of motors, electrical appliances, hinge, furniture, machinery and stainless steel hardware accessories. Our main products are including: nuts and bolts, small screws and other series!

The article is come from:http://www.stainlesssteel-fasteners.com/news/9.htm

The Characteristics of the Moon cake Tin Packaging

Innovative type

Over the years, there are two types in the moon cake traditional tin packaging, one is the square tin installed with 4 cakes, and the other one is the round tin can loaded with eight moon cakes. Recent years, with the changes of people's consumption demand and consumption levels, not only moon cake itself is given a new meaning, but also higher requirements are put forward on the moon cake tin packaging. The tin packaging with novel structure, beautiful shape, various function has become an important factor in selecting moon cake packaging.

The flat-screen combination type

Moon cake box consists of two parts, the outer layer is designed tray, and the inner layer is combined of four separate fan-shaped tin circles, and the entire circular pattern is an organic whole. The outer layer is designed custom tin box or tray, the inner layer is composed by a small fan and a larger round tin can to form a whole through the structure and pattern design.

Transplant type

Hexagonal deep cover sleeve fit cans take use of a small arc transition in the corner of the container body, after the projecting of the tank bottom connected with the cans roll molding, the can lid is divided into two parts, the same as the cover body and the molding process of the container body . The outer edge of the cover the top of the drawing, the depth and the cover body of the inner bead are in the same height. The top surface cover is flat. It is combined with the shape characteristics of cake plastic box, together with the elegant colors and patterns, giving a feeling of luxury.
The function type
Multi-function is an important way to expand moon cake tin packaging market when guarantee the moon cake packaging performance. For example, the shape of the tin like chocolate tin box, which is composed of six semi-circular petals and it can also be used as a candy box. In addition, hand push children moon cake tins can be used as stationery. Furthermore, the moon cake barrels can be used to hold tea or other food.

Profile type
Profiling moon cake tin packaging can give full play to the advantages of the iron in the processing and printing, and choose the shape with the symbolic significance as a model. Profiling type moon cake tin packaging is mainly used independent of a single moon cake packaging. For example, the heart-shaped tank can express love; scallop-shaped tank gives a feel of novel and high-end. The similar profiling moon cake tin packaging, can be matched with the corresponding pattern, which can also be used to hold jewelry.

www.tinbox6.com
We have three companies to offer a full line of tin boxes. The printing company imported FUJI double color printing machines from Japan, so that we can control the printing quality, delivery time and cost well. Moreover, two other companies are for tin boxes production: one is for Chemical paint cans, oil cans and the other is for ice buckets, metal trays and tin boxes. 

The article is come from:http://fashion.jewellryboxes.net/custom-rubber-products/the-characteristics-of-the-moon-cake-tin-packaging.htm

An International Wind is Sweeping Xintang Denim Industry

The International Road of Chinese Denim

"The world's denim settles in China, and Chinese denim settles in Xintang." In China, the each ten jeans exported to all over the world, 4 of them are manufactured in Xintang. The "gateway to the world" - the slogan of the Italian fashion design port showed on scene located in Xintang, Guangdong Province, China, and this slogan leave impressive impression for the people come here. The officially launched Chinese - Italian fashion design port is an open public service platform, a studio for the exclusive use by the Italian designer, to release the latest works of the exhibition center, network information center of the global apparel trend will provide the denim costume design, pattern design, image design, professional consulting, services and outsourcing diversified services for Xintang, Zengcheng, Guangdong, China. – With the setting sail of Italian fashion design port (Xintang), marking cooperation in the areas of brand development, creative design, R & D, talent exchange has entered a stage of high-level update development.

Transformation Assist Denim Industry Rise against Wind

Xintang denim industry step a solid pace from "manufacturing" to "creating" in the critical transformation and upgrading. Here gradually formed a consensus: to promote the transition to creative design, invisible wings to plug in the denim industry. The leap-forward development of Xintang denim industry also brings many Chinese wholesale fabric suppliers the unlimited business opportunities. Enhanced between Xintang Jeans R & D design, brand marketing, fashion and Milan cultural functions by such international creative design and fashion culture are interactive, Italy, apparel Cultural Park through the construction of clothing design platform to expedite the implementation of denim garment industry transformation and upgrading, thus promoting urban transformation and upgrading.

New Technology Leads the Denim Ecological Civilization

Without water and chemical additives G2 color (rinsing) processor, especially suitable for the use of SMEs like sewage treatment equipment such as washing machines the size of a removable top international digitization jeans sewing professional equipment. In the First Guangzhou Zengcheng International Textile and Garment Advanced Equipment Exhibition, the advanced denim clothing and equipment make the Zengcheng denim clothing practitioners amazed again and again, these state-of-the-art equipment, technical maturity and cost have been merchants can accept the range to make denim fabric production perfectly placed to become a green manufacturing. Promote the use of advanced equipment, to subvert the people's impression of the clothing manufacturing industry, the apparel production industry technology and equipment upgrades can become a green manufacturing industry, in the creation of wealth, while also creating ecological civilization, and it should be vigorously promoted.



www.Chinesefabrics.net is by far the sole southern R & D base of China's fashion fabrics authorized by China National Textile Industry Council, as well as the second largest industrial park in Nanhai district. We are specialized in the R & D, production and sales of chemical fabric , suiting fabric, jacquard fabric, and denim fabric. Welcome to visit our page for more details!



More about my article, you also can read:http://industrialgoods.overblog.com/

Temporary Tattoos Swept the World

Get rid of tattoo is not a very easy thing

The tattoo is to use the needle with ink to pierce into the layers of skin and manufacture some pattern or word on the skin. People embroider a variety of patterns on the body to show auspicious and worship. The tattoo once brought a lot of joy for most men and women seeking fashion, but with the growth of these people, these tattoos enable the patients to be painful. What is the tattoo removal method? Experts introduce that human skin is divided into a shallow layer epidermis and dermis layer, among which the epidermis can be updated and quickly shedding. The tattooing pigments are generally implanted in the dermis which are permanent and cannot disappear on their own. So get rid of tattoo is not a very easy thing.

Temporary tattoos are loved by the young people and swept the world

Many young people love tattoos, but fear of the injury brought by tattoos, which spawned the birth of painless tattoo. Painless tattoo is also known as temporary tattoo. The best temporary tattoo is the pattern sprayed by the spray gun. It can depict beautiful pattern on the body, which is the perfect combination of tattoos and art. The cultural phenomenon of painless tattoos integrated "fashion" and "popular". With the culture displayed by the body gradually rise, to make people accept the expression patterns of the body, the tattoo has become a social work of art, and famous tattoo master is regarded as the artists. Because compared to traditional tattoo, the temporary tattoo neither harm the skin, nor painless, not afraid of washing and can also keep about seven days, and can be replaced with your favorite pattern at any time, so it is loved by the young people and swept the world.

Temporary tattoo features:

1. Temporary. The temporary tattoos can be stored in the body for up to 15-60 days, and the pattern can be freely transformed according to your personal preferences.
2. Environmental protection. The temporary tattoo pigment is non-toxic and harmless on the body, does not have any side effects, and contains a variety of natural plant extracts, customers can be assured to use.
3. Diversity. The wholesale temporary tattoos template covers people, animals, flowers, Totem, cartoons, and many other categories, a very wide range of patterns are available for customers to choose;
4. Low price. Compared to tattoos and art painting, the price of temporary art tattoos has a great advantage. You can enjoy the perfect body art at low cost, which has a lot of allure for the majority of consumers.
5. Quality patterns. The temporary art tattoo templates are completed by professional temporary tattoo designers and engineers, the template itself contains a very high artistic value.

www.tattoomanufactory.com is a professional tattoo manufacture and has been specialized in temporary tattoo since 2002. We aim to be the most professional tattoo manufacturer and provide competitive price, quality guaranteed products and professional service.

If you are interested in our products, please feel free to contact us!

Die-casting Process Introduction

What is the Pressure Die Casting?

The substance of high pressure die casting is also referred to as die-casting which is under high pressure, so that the liquid or semi-liquid metal is filled at a higher speed type casting (die casting mold) cavity, and molding under pressure, and solidification was obtained in the casting method. The high-pressure and high-speed filling die-casting is the two main characteristics of the die-casting. It is commonly used in injection pressure from a few thousand to tens of thousands of kPa, and even up to 2 × 105kPa. Filling speed is about 10 to 50m / s, sometimes even up to 100m / s or more. The filling time is very short, usually in the range of 0.01 ~ 0.2s.

Die Casting Process Advantages

Compared with the other casting methods, the die casting has the following three advantages:

Product quality: high dimensional accuracy of castings, generally the equivalent is 6 to 7, even up to four; surface finish is generally equivalent to 5 to 8; higher strength and hardness, strength is generally increased by 25 to 30 than sand casting, but the elongation is reduced about 70%; dimensionally stable, good interchangeability; complex die casting thin-walled castings. For example, zinc alloy die castings minimum wall thickness is up to 0.3mm;aluminum alloy die casting can be up to 0.5 mm. High production efficiency: machines with high productivity; die-casting has long life, and a pair of type casting, the life of die casting bell alloy expectancy is up to hundreds of thousands of times, or even millions of times; easy to realize mechanization and automation. The excellent economic effects: due to the exact size of die castings and smooth table pan. Generally, it is directly used and without machining and the processing volume is very small, so not only improves the metal utilization, and reduce a lot of processing equipment and working hours; castings price is very cheap, combination of die-cast metal or non-metallic materials is available.

Applications and Trends of Pressure Die Casting

High pressure die casting is one of the most advanced metal-forming methods and it is the effective way to achieve less chips and no chips, the application is very wide, and it has developed rapidly. Now the die casting alloy is no longer confined to the non-ferrous metals zinc, aluminum, magnesium and copper, and has gradually expanded to be used die casting of cast iron and steel castings. The size and weight of the die casting depends on the power of the die casting machine. The increasing power of the die-casting machine, casting shaped size can be from a few millimeters to 1 ~ 2m; weight can be from a few grams to tens of kilograms. At abroad, the die casting diameter is 2 m and a weight is 50kg of aluminum castings. Die castings are no longer limited to the automotive industry and instrument industry, and gradually expand to other various industrial sectors, such as agricultural machinery, machine tool industry, the electronics industry, the defense industry, computers, medical equipment, watches, cameras and daily hardware industries.



www.pressure-die-casting.net is a professional zinc, aluminum high pressure die casting and magnesium molds (toolings) designer and manufacturer. We specialize in aluminum die cast, zinc alloy die casting parts, post-process CNC and surface treatment. We are licensed to export toolings (molds) and pressure die castings. Any interests in our products? Come to have a visit our page! We will never let you down!



The article is come from:http://www.pressure-die-casting.net/diecasting/index.php/die-casting-process-introduction.htm

Brief Introduction of Injection Molding

What is Injection Molding?
Injection molding (British English: moulding) is a manufacturing process for producing parts from both thermoplastic and thermosetting plastic or other materials including metals, glasses, elastomers and confections. Material is fed into a heated barrel, mixed, and forced into a mold cavity where it cools and hardens to the configuration of the cavity. After a product is designed, usually by an industrial designer or an engineer, molds are made by a mold maker (or toolmaker) from metal, usually either steel or aluminum, and precision-machined to form the features of the desired part. Injection molding is widely used for manufacturing a variety of parts, from the smallest component to entire body panels of cars. Specialized injection molding machine manufacturer can produce anything through they got a sample.
Appliance of Injection Molding
Injection molding is used to create many things such as wire spools, packaging, bottle caps, automotive dashboards, pocket combs, some musical instruments (and parts of them), one-piece chairs and small tables, storage containers, mechanical parts (including gears), and most other plastic products available today. Injection molding is the most common method of part manufacturing.Plastic molding machine is widely used in manufacturing rubber or plastic parts and components. Injection molding is ideal for producing high volumes of the same object. Some advantages of injection molding are high production rates, repeatable high tolerances, the ability to use a wide range of materials, low labor cost, minimal scrap losses, and little need to finish parts after molding. Some disadvantages of this process are expensive equipment investment, potentially high running costs, and the need to design moldable parts.
How to Built Injection Molds
Molds are built through two main methods: standard machining and EDM. Standard machining, in its conventional form, has historically been the method of building injection molds. With technological development, CNC machining became the predominant means of making more complex molds with more accurate mold details in less time than traditional methods.
The electrical discharge machining (EDM) or spark erosion process has become widely used in mold making. As well as allowing the formation of shapes that are difficult to machine, the process allows pre-hardened molds to be shaped so that no heat treatment is required. Changes to a hardened mold by conventional drilling and milling normally require annealing to soften the mold, followed by heat treatment to harden it again. EDM is a simple process in which a shaped electrode, usually made of copper or graphite, is very slowly lowered onto the mold surface (over a period of many hours), which is immersed in paraffin oil (kerosene). A voltage applied between tool and mold causes spark erosion of the mold surface in the inverse shape of the electrode
www.plastic-machines.com.cn was established in Dongguan in 1999, which is a professional manufactory on plastic injection molding machine.
The article is come from:http://www.plastic-machines.com.cn/News/158.htm
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Knowledge of Ceramic Colors

Introduction of Ceramic colors
Ceramic colors is a generic term of all pigment used on ceramic, including over glazed pigment, under glazed pigment, glaze and body coloring pigment.
Different Requirements to Ceramic Colors of Different Usage
In the ceramic production process, these pigments are subjected to the calcination of different temperatures. There are different requirements to ceramic colors of different usage. Under glazed pigment has to be clacined under high temperature (1300 ℃), which requires high stability. However it is divided into less variety. The earliest under glazed colors are the blue and white, underglazed red, and in recent years red, yellow, blue, green, black, gray, and brown have been made. Overglazed pigment only needs to withstand a temperature of 600 ~ 800 ℃, and thus it can be divided into a wide variety of rich colors. In addition, liquid pigment is used as a glaze polychrome, such as Goldwater, etc. It is combined into vulcanization ointment by metal and organic matter, coupled with organic solvents. In the seventies, it developed into a high temperature fast burning pigments (in-glaze decoration). The decoration firing temperature is 1100 to 1260 ℃, and the decoration firing time is 35 to 120 minutes.

Preparation Process of Ceramic Colors
Mixing
The final hue of the colorant is largely influenced by other ingredients added to the colorant. Accordingly, in order to make sure each batch of pigment is in the same hue, raw material of the same quality must be carefully weighed and mixed in accordance with the composition. Calcination
Calcination is an important step of the ceramic colors manufacture, and its purpose is to make the colorant stabilized. During the calcination process, due to the difference of nature of raw materials and pigment hope to get, the reaction will be different. The lowest calcination’s temperature should be the same as the final pigment products’.

Washing
Pulverize the ceramic colors after calcination, and then in order to clean out all the soluble substances, pigments should be washed with water. Pigment using chromate must be washed with hot water. If there is remaining soluble chromate, around the chrome there will appear uneven colors. If you do not clean out borate, there will appear thin film on the pigment.

Pulverization
After washing, the ceramic glazes should be pulverized to the desired fineness with pan mill or a ball mill by waterproof pulverization method. Although there are no express terms of the particle size of pigment, the general requirements are that all the pigments can pass 300 mesh sieves. When the pigment is not pulverized enough, it will be hard to use because of uneven particle, and will turn into mottling after burning because of shortage of covering power. Conversely, if pulverize the pigment excessive fine as dust, it will not sufficiently fuse in the glaze but occur roll glaze.

www.ceramicpigment.net is an integrated enterprise of R & D, production and management. It is the Chinese Ceramic Society, and has been honored as Foshan Enterprises Association governing units.

The article is come from:http://www.ceramicpigment.net/news/78.htm
More about my article, you also can read:http://tradedeals.snappages.com

Notes for the Selection of Adhesives Sealant

The necessity of selecting starch adhesives

It would better choose starch adhesives to take the place of the synthetic resin adhesives which will benefit the cost savings. Starch adhesive owns the features of fast drying, strong bonding, environmental pollution, low cost and other fine features. In laminating, the ordinary carton adhesive, paper tube adhesive and paper pallets bonding, starch adhesive sealant can completely replace the synthetic resin adhesives.

The advantages of hot melt adhesives

In variety of adhesives, the drying time of hot melt adhesive is the shortest, for the adhesive molding process which needs instant drying and curing, and then it is advisable to use hot melt adhesive. Hot melt adhesive is ideal for bonding process between the plastic foam or EPE materials and paper, dry quickly, and the adhesive is very strong. We should note that the Heat Sink Paste has the most extensive range of application, but not for the adhesion of UV varnish paper products.

Different adhesives for different work

Due to the practices are different, the performance of the adhesives must also be different. Such as laminating process, the speed of the automatic laminating machine is fast, thus requiring lower viscosity adhesives and quick drying; while manual laminating machine is slow, thus requiring slightly fast of adhesive viscosity and drying speed should not be too fast.


The storage period of adhesive

The storage period should also be taken into consideration range when purchasing the adhesives. Storage period refers to under specified conditions adhesives stored, to stable performance maintain time. Purchases should be based on the enterprise's production situation to make sure the adhesives minimum storage period. For general corporate, the adhesives shelf life should be more than a month.


Adhesives for the different purposes of products

Usually the paper container requires only a sufficient adhesive strength in storage during the transport, while for the packaging of food, cosmetics and pharmaceuticals, except the adhesive strength requirements, and also requires the adhesives used must be odorless, non-toxic, in line with national health and safety regulations and environmental requirements. Certain ingredients, such as adhesive promoting agents, plasticizers, antioxidants, etc. may be transferred to the inner surface of the packaging material and contamination of food, which must be limited. In addition, it should be based on the specific use of paper products, adhesives various patience visits, such as heat resistance, water resistance, chemical resistance, aging resistance, low temperature resistance.



The security of adhesives

Environmental protection and safety are also the factors to be considered for adhesives. The solvent-based adhesives use large amounts of organic solvent, which not only serious pollute environment, but also damage to human health, and may cause a fire, and therefore should be possible to find a water-based or solvent-free adhesives.



www.zscnr.com

Thanks to the seven-year arduous pioneering, Conor has marched into the stage of rapid development. Confronting to the domestic competition of adhesive, the company takes slow and steady efforts to catch up and now it has created a well-known brand among the domestic adhesive industry. The whole company will tenaciously strive to enter into the top 100 of the domestic adhesive industry.



The article is come from:http://www.chinawoodenflooring.com/index.php/notes-for-the-selection-of-adhesives-sealant.htm


More about my article, you also can read:http://industrialaterials.blog.fc2.com

Types of Printed Tape

As more and more types of printed tape have come to the market, you can custom printed tape in different materials.

Vinyl or PVC Printed Packing Tape
Vinyl tape is top quality packing tape recommended for printing. White vinyl in particular has good UV resistance. Pantone colours can usually be matched so a wide range of printing is possible. Therefore it is recommended using vinyl tape for printing. It is stronger and thicker than polypropylene and has 2 dimensional strength. So it is the best custom printed tape Vinyl PVC tape is usually coated with a natural rubber resin adhesive which is soft and flexible and therefore better suited to low temperatures such as cold stores. It should be applied at room temperature above 18 degrees centigrade before boxes or packets go into the cold store.

Acrylic Printed Packing Tape
Acrylic is the medium priced pressure sensitive tape, it features excellent clarity and resistance to yellowing. It may be applied in temperatures ranging from 32-140 degrees, is a great general purpose tape and is the favorite when carton appearance is an important consideration. Polypropylene tape is a very thin tape which has some strength in one direction but once a split in the material occurs it looses its strength. There is limited colour matching available and a limited amount of coloured inks available. A value for money product with limitations.

Hot Melt Printed Packing Tape
Hot melt tape, also known as synthetic rubber is manufactured with a polypropylene backing. Hot melt tape works well from 45-120 degrees, provides a good bond for most carton sealing applications and is the lowest cost pressure sensitive tape available. Hot melt may yellow with time, but will do so more slowly than natural rubber tape. Polypropylene tape is a very thin tape which has some strength in one direction but once a split in the material occurs it looses its strength. There is limited colour matching available and a limited amount of coloured inks available.

Solvent Printed Packing Tape
A branded general purpose is to cost effective packaging tape. The solvent based adhesive provides excellent adhesion to polythene and general packaging. It is similar to the kraft paper tape. Aggressive adhesive coating ideal for polythene packing, bundling and sealing is the ideal for medium to heavy packages which require a high sealing performance.

www.boppadhesivetape.com is a manufacturer which can provide practical usage and convenient life. Customers can choose their desired quality printed tape from various types of printed tape. Energy saving and environment friendly are two distinguished features of the printed tape they produced.

The article is come from:http://www.boppadhesivetape.com/News/16.htm

More about my article, you also can read:http://industrialaterials.blog.fc2.com/

The Road of Hardware Accessories Industry to Power

Innovative Technology is Vital to Precision Components Industry

After 30 years of efforts, China's hardware industry has become a veritable power of hardware. However, the current of the hardware business in China is still facing the change from “hardware big country" to "hardware power", we need to expand the brand and industry regionalization wings. Due to the impact of the rapid development of the hardware accessories production technology and expensive labor, the developed countries have low-end products to accelerate transfer to the Third World, and they only produce high value-added products. DIY Precision Components become the new darling of the hardware market. In recent years, architectural hardware products design of the developed countries in Europe and the United States with an easy installation and maintenance of the main self-assembly (do it yourself) products and tools are received by the market.

Brand is the Only Way for the Hardware Industry Development
China's exports of metal products to earn only 3% of the total exports, Welding And Fabrication of the hardware is not just the scientific and technological content, the more important is branding issue. Brands include many elements, including service and reputation. Reputation is gold, and business integrity is the fundamental way. If our production hardware products not paste other countries' brands, but to sell their own brands, and OEM sales price is the same, then our GDP will soon improved greatly. At the same time, China's hardware industry if want to develop to be bigger and stronger, the large consortia intervention is a key factor.

Future of Hardware Accessories Industry
How to create China's own proportionate brand hardware accessories market is a problem we need to solve. With WTO accession, a large number of well-known international brands enter China, and this is we often say the "wolf" comes. The development of China's hardware industry, production, and marketing must conform to the domestic and international trends toward internationalization, stimulating enterprise development and marketing, to create an international concept. At present, China's hardware products barely defeated in the international brands like many hardware companies in Zhejiang, although renowned in the country, but they did not go out of China. I believe that after a period of hard work, hardware products in China started in the international brand will be more and more obvious.

www.aidely.net is a manufacturer of precision machinery components and fixtures for industries such as solar energy, electronics, optical-communication, medical equipment and office automation. Welcome to visit our page!

The article is come from:http://www.aidely.net/news/19.htm

The Application of Non-woven Fabrics

According to the durability, the garment is divided into two categories: the durability and non-durability (disposable). Currently, the applications of non-woven clothing are mainly in the field of non-durable clothing. Non-woven applications in the non-durable clothing have been very popular, such as spunlace medical protective clothing, PP disposable spunbond protective clothing, and SMS medical protective clothing, etc. So non-woven fabric manufacturer is making efforts to develop in this area.Currently, new product developments in this area include two aspects: one is the new expansion of the existing materials in clothing applications; second, is the development of a new type of non-woven fabrics.

Non-durable non-woven apparel fabrics

SMS nonwoven spunbond and meltblown composite products, has high strength, good filtering performance, adhesive-free, non-toxic, etc., has played an important role in the field of medical and industrial filter material, new applications SMS breathable not produce fiber dust, to prevent particle exchange characteristics of the human body with the outside world, for the pharmaceutical, biotechnology, optoelectronics processing, electrical components and chip requires a high degree of clean production environment. The spunbond non-woven consists from high-strength continuous filament, account for a large proportion of disposable protective clothing market. The latest development is adding special additives or spunbond production process finishing, so the products have the function of flame resistance, anti-static, anti-radiation, hydrophobic guide wet, antibacterial, warmth and other features. In the development of new fibers, the water-soluble non-woven fabric is an environmentally friendly product, and is gradually expanding its scope of application. The Spunlace nonwoven produced by polyvinyl alcohol-soluble fiber is a good material for the production of radiation protection and pollution preventing clothing. In order to increase the protective effect, it can be composited with the water-soluble film to increase the barrier properties of protective clothing. In addition, in the use of the new fiber, the technology is invented that add the super-absorbent fiber (SAF) in the non-woven production process. This nonwoven fabric containing SAF particularly has good soft feel and absorbency, which can rapidly absorb sweat, increasing the microenvironment comfort between clothing and human.



Durability non-woven clothing fabric

Due to there is gap between the non-woven fabric and the apparel fabrics in the requirements of drape, elasticity, strength and elongation, the opacity and pilling and other aspects, and lack a certain sense of art in appearance, so it is quite difficult to be applied to the field of the durability garment. However, non-woven fabric has the advantages of casual side and slipping directly selvage involved in the design, do not need ironing and sewing clothing hemmer characteristics that distinguish it from machine woven and knitted fabrics. It is optimistic about the advantages of simple non-woven garment sewing process, many researchers and non woven fabric supplier have the courage to face the risk of product development. The focus of research in recent years focused on how to improve the performance of the non-woven fabric drape, abrasion resistance, flexibility and elastic recovery capability to make it suitable for the requirements of the durability of the garment fabric.



www.nonwovenfabric.cn is dedicated to construct a knowledge acquiring company and has its company culture as being strict, passionate united and win-win acquisition. The staff team of the company is well-trained, competitive in technology, and having rich manufacturing experience and sales experience.



The article is come from:http://www.topfurniture4u.com/the-application-of-non-woven-fabrics/

Essential Knowledge about Mold spring

Mold spring classification
Mold spring includes: Japanese standard mold springs, German standard mold spring, MQB-type nitrogen spring, MQJ nitrogen spring, MQC-type nitrogen spring, MQH nitrogen spring and polyurethane spring. The mold spring usually refers to rectangular mold spring.

Mold spring material selection
The mold spring material generally uses the chromium alloy steel. The chromium alloy spring steel has heat resistance, rigidity and long life characteristics.

Characteristics of mould springs
Rectangular mold spring has small size, good elasticity, large rigidity, high precision, production materials are rectangular, surface is coated (plated) by different colors to distinguish different weight, beautiful looks and other characteristics.

Application of mold spring

is widely used in the stamping die, metal die-casting mold, plastic mold and other elastic motion precision machinery and equipment, automotive and other fields.

Mold spring production standard
Now the standardized mold spring production standards include: ISO9001: 2000, Japanese JIS, ISO10243, NAAMS (North American Automotive Metric Standards), the springs produced according to the different standards are Intraday standard spring, the American standard spring, ISO10243 German standard mould spring, etc.

Poor quality spring will have a great impact on mold precision and quality
The mold spring is the special spring that needs to expose a variety of complex situations. The mold springs are the core components of stamping dies, injection molds and other manufacturing equipment. Because it work repeatedly at high-speed in a narrow space, it always is required to play the best performance characteristics under the high heat, high-amplitude, high pressure complex conditions. The quality of mould springs begins with the best choice of materials and its material should use that produced by specialized manufacturers. Generally, rolling the circular oil tempered wire or other material into the mold spring material by by non-specialized materials manufacturers will generate a fatal problem the performance of the mold spring, which is deformation or breakage, etc. The quality of the spring 80% depends on the raw material, the use of poor quality spring will have a great impact on mold precision and quality.

Contemporary mold spring supplier should have sound system
Product quality largely depends on the state-of-the-art equipment. The contemporary world best spring manufacturing equipment can directly make precision machining and strictly use a variety of roller guide. In addition, technical force and strict quality management is also one of the important factors. Mold springs far reach fatigue test requirements of 300,000, 500,000 and one million times. In terms with spring, from the choice of materials to the design and interpretation of a series of process measurement, the durability and reliability of the product are ensured from a variety of ways in testing, evaluation and automation. Owning the sound system to develop and provide spring products is what the contemporary mold spring supplier should have.

www.wire-spring.net is a custom spring manufacturer located in Foshan City, Guangdong Province, China, providing in custom made spring products like flat spring, mould coil spring, and all sorts of wire spring: compression spring, torsion spring, extension spring, and manufacturing requirements to all industries, such as electronics, automobile, toys, house ware, electrical appliances and industry.

If you are interested in our products, please feel free to contact us!

The article is come from:http://www.soundspeaken/index.php/essential-knowledge-about-mold-spring.htm

More about my article, you also can read:http://chemicalrawmaterials.weebly.com

Features and Use Condition of EI Transformers

What is an EI Transformers?
EI transformers is a kind of electronic device that the mains alternating voltage is changed into DC through the semiconductor switching device, and the electronic components and the high frequency transformer winding constitute a high frequency AC voltage output, it is also the so-called AC-DC inverter circuit in the electronic theory. In simple terms, it is mainly composed of the high-frequency transformer cores and two or more coils, which not mutually change location, from one or two or more electrical circuits via the AC power by means of electrically magnetic induction, and turn into the AC voltage and current. While at the output terminal of the high frequency mains transformers, it supplies the different voltage levels of the high frequency AC or DC for the one or two or more electricity circuits.



Characteristics of EI Transformer
The input of EI transformer is AC12V, the output is AC220V, and its power can be up to 50W-300W. It is a transformer circuit primarily developed on the basis of high-frequency electronic ballast circuit. It has the features of stable performance, small size, and big power, thus overcoming the disadvantages of big body, bulky and high price of traditional silicon steel sheet transformer.EI transformers is the non-regulator switching power supply, it actually is an inverter. First, turn the AC into DC and then the electronic components is turned into a high-frequency oscillator to make the direct current into high frequency alternating current and through the switching transformer output the voltage required, and then the second rectifier provide for the use of appliances. Switching power supply has the advantages of small size, light weight, and low price, and now it is widely used in a variety of appliances.

Use Conditions of EI Transformer
Use Conditions of electronic transformer includes two aspects: Reliability and electromagnetic compatibility. In the past, people only pay attention to reliability, and now environmental protection awareness is improved, we must pay attention to electromagnetic compatibility. Reliability refers to that under the specific use conditions, the electronic transformer can work properly until the life. The general use condition of the electronic transformer is ambient temperature. Determine the electronic transformer temperature affect the strength parameter is the Curie point of the soft magnetic material. Curie point of soft magnetic materials is high, seldom affected by temperature; Curie point of soft magnetic materials is low, sensitive to temperature changes, and easy to be affected by temperature.

www.mainstransformer.com is an advanced enterprise specialized in kinds of mains transformers producing. As the professional manufacturer of customized mains transformers especially low transformers and EI transformer, we can produce customized mains transformers in different power and output / input current. Welcome to visit our page!

The article is come from:http://www.storage-battery.com/index.php/features-and-use-condition-of-ei-transformers.htm

Development Trend of Adhesive Sealant

The status quo of the adhesive sealant industry

In today's world, the times call for green living and pursue environmental protection, and therefore environmental conservation is not only an important symbol of social progress, but also an important condition for the survival of mankind. For the adhesives industry, it is imperative to research and develop the applied environmental adhesives. The birth of environmentally friendly adhesives destines to change people's lives and living environment. Environmentally friendly adhesive sealant plays an important role in computer technology, communication technology, electronic products and electrical distribution progress, so that the product has better sealing, which saves from the damage of a high-sensitive circuits, microprocessors and the environmentally friendly characteristics of semiconductor which contains no environmental pollutants determines the facilitate recycling of electronic equipment, which is more harmony with the human living environment. Environmentally friendly adhesives keep furniture from daily wear and scratches which make it have the feature of waterproof and new look. Because the performance and flexibility of the softening the product surface. The home environment constructed by it will be more comfortable and closer to nature. The environmentally friendly adhesives are to help create higher work efficiency prosperity office and a clean and comfortable living environment.



How to improve the heat resistance of the sealant?
First, increase the degree of cross linking. Second, add the silane coupling agent. Third, take the use of a resin or rubber with good high temperature performance, such as phenolic resins, silicone resins, fluorine-containing rubber and heterocyclic polymers to increase the degree of crystallinity of the polymer appropriately. Fourth, add antioxidants in the smt adhesive, such as gallic propyl gallate, 8 - hydroxyquinoline. Fifth, add the heat-resistant filler, such as asbestos powder, aluminum powder, etc. Sixth, take use of good curing agents with high temperature resistance, such as epoxy adhesive and diamino diphenyl sulfone.

Measures to keep the safety of adhesives
The following measures should be taken to ensure safety: First of all, we should be aware of the toxicity and danger in adhesives. We should put on work clothes and wear a mask and gloves in the process of operation. In addition, the bonding workplace should be well-ventilated and timely discharge poison gas to keep the air fresh; and the toxic substances should be controlled within the specified limits. Minimize direct contact with people with gum. Smoking, eating and fire are forbidden in the bonding site. Electrical equipment and lighting fixtures should be explosion-proofed, including fire apparatus to prepare a number of emergency medicine. Weighing, mixing with glue should be carried out in a well-ventilated place or isolated operation to reduce poison. If the glue gets on your hands or skin, you can wipe with acetone, and try to avoid using solvents to wash their hands, prevent skim from chapping. You’d better wash your hands with warm water and soap.

www.zscnr.com
Thanks to the seven-year arduous pioneering, Conor has marched into the stage of rapid development. Confronting to the domestic competition of adhesive, the company takes slow and steady efforts to catch up and now it has created a well-known brand among the domestic adhesive industry. The whole company will tenaciously strive to enter into the top 100 of the domestic adhesive industry.

The article is come from:http://www.chinawoodenflooring.com/index.php/development-trend-of-adhesive-sealant.htm

Advanced Facial Mask Printing Machine Introduced to Uni-pak

 Advanced Facial Mask Printing Machine Introduced to Uni-pak

On October 24th, Uni-pak introduced one facial mask printing machine again. This is the second time for us to add new machines and expand production. In April 2012, we added one printing machine, one compounding machine, and one bag making machine. Times went by, Uni-pak got more and more clients, and they recall us to enhance our production ability. That’s why we need to buy new machine. We are not the biggest plastic bag manufacturer in dongguan, but there are so many customers trust us, support us, how could we let them down? What we can do is just improve ourselves and do our best for them. With the unmistakable help of our friends, we will surely become stronger and stronger! <br>


   

P.S.: We need some time to install this machine. It will start printing facial mask bags on or about November 5th. Let’s forward to the first time production! <br>

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The article is come from:http://www.chinaunipak.com/packagingbags/?p=10