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2015年5月19日星期二

What Is Tungsten Copper Plate

Tungsten copper plate is a composite of tungsten and copper. The coefficient of thermal expansion of the composite can be designed by controlling the content of tungsten, matching that of the materials, such as Ceramics, Semiconductors, Metals, etc. The products are widely application in the fields such as radio frequency, microwave, high power diode packaging and optical communication system.

Tungsten Copper Plate Features
1. The composition of tungsten and copper are well-proportioned and accurate percentage;
2. Tungsten copper plates are precisely machined with high thermo stability, high arc resistance and high strength;
3. Tungsten copper plate has high electrical conductivity and thermal conductivity;
4. It owns both excellent properties of tungsten's low expansion and copper's high heat conductivity;
5. Tungsten copper plates comply with China GH 8320-87 and SJ-20848-2002UQB standard.

The longest length we are able to provide of tungsten copper plate is 500mm, and the most thickness is 0.2mm. And we also provide the special sizes according to per client's per special requried.

What Is Tungsten Copepr Rod

Tungsten copepr rod is a kind of round rod. Tungsten copper rod is a combination of tungsten and copper.
The manufacturing process is as follows: press the refractory metal, sinter the pressed compact at a high temperature, and infiltrate it with copper. All this is done under very closely controlled conditions. The result is a relatively hard material with superior arc and wear resistance, high physical Properties: at elevated temperatures, and good electrical and thermal conductivity.


We can provide tungsten copper rod with the diameter≥0.9mm and length≤300mm, and then the tungsten content of 55%~90%. But all can be produced as the requirements of customers, and you canuse our tungsten copper rods machining to your tagart dimension.

Tungsten copper rods are mainly used in resistance welding electrodes, EDM electrodes, high-voltage discharge electrodes and electronic packaging materials.

2015年5月4日星期一

Tungsten Copper Sheet


Tungsten copper sheet is a kind of tungsten copper plate, the special properties of tungsten copper sheet is it's thickness, which is only 0.1mm~1mm.

Tungsten copper sheet is combined by tungsten and copper, which includes the properties of tungsten and copper, are widely used on EDM and heat sink. The smallest thickness we are able to provide is 0.1mm, and we are also able to provide the special requried for each client.

All tungsten copper sheets we provided are seriously obeyed international GB/T8320 producing. Our tungsten copper sheets are high density and high conductivity and high hardness. Also, it is the first choice material of mirror spark discharge electrode.

The composition of tungsten copper sheet we are able to provide is from 10Cu to 50Cu, or if you have any special requried of the composition, you can contact us without delay. Our technical department could research per client's per special requried.

2015年4月15日星期三

Gel Prepared Tungsten Copper Alloy Powder

In this paper, the sol-gel method combined with a spray-drying method series of ultra-fine tungsten copper composite powder, the powder through the different composition, size and other performance standards, different green powder sintering behavior under liquid phase conditions research and analysis by testing the sintered microstructure and physical and mechanical, thermal, electrical properties, the influence of the preparation method and process conditions on the powder properties and the final W-Cu composite material properties, so as to prepare a high density of W-Cu composites were useful to explore and try.


By powder on microstructure and properties of comparative analysis, we found the following preparation process using tungsten-copper composite powder series ideal performance: After paratungstic acid and copper nitrate according to a certain percentage of a beaker with a good, adding a certain amount of citric acid After stirring at room temperature at 30 ℃ dissolve, then add a certain amount of stearic acid as a surfactant, was heated to 80 ℃ stirring, when it becomes a gel by spray drying tower and dried: and then calcined at 600 ℃ 4 hours ; then reduced at 800 ℃. The powder series have in common is: particle size were between 0.1um-1um: powder particle shape is more structured, are spherical shape; powder due to the small particle size, surface activity, leading to more serious powder agglomeration.

2015年4月8日星期三

Tungsten Copper Wear Resistance

Tungsten copper wear resistance nano-powder materials were milled, depending on the ratio of copper powder mixed 2_4h, first at the bottom of the prepared graphite mold Xianpu ー about O. 5_ thick layer of pure nano-tungsten-copper resistant materials and then mixed in different proportions holes and pure copper powder powder, copper content increased, the thickness of about I. 5mm, the surface layer of about O. 5mm holes and ー thick pure copper powder. The die set installed hot powder sintering furnace, sintering Eito Arts Figure I shows. The sintering resistant materials combined with copper to form functionally graded materials clean copper surface, the wind ro casting process is placed in Zhu type, embedded directly in the casting process cast in the wind ro sleeve ring surface, so resistant materials combined with wind copper metallurgy between the substrate and the implementation.

A high temperature tungsten copper wear resistance material for a lining of a blast-furnace tuyere sleeve, which is prepared by the following raw materials in percentage by weight: 40-60% of nano copper powder, 36-56% of nano tungsten powder, 0.2-0.65% of iron powder and 4-6% of chromium powder. Metal conducts plastic deformation and is molten and diffused at high temperature and high pressure and by the aging effect at the high temperature and the high pressure, so that the high-temperature wear-resistant tungsten copper material is obtained. The high temperature wear resistance  material of tungsten copper is good in heat-conducting property, high-temperature strength and high-temperature wear-resistant property, can realize metallurgical bonding with a fine copper substrate, and can be used for manufacturing the lining of the blast-furnace tuyere sleeve, which is good in wear-resistant property and long in service life; the wear-resistant property of the blast-furnace tuyere sleeve can be improved greatly; and the service life of the blast-furnace tuyere sleeve can be prolonged greatly.

2015年2月14日星期六

Tungsten Copper Heat Base

Chinatungsten's tungsten copper heat base is to be used extensively in thermal mounting plates, chip carriers, flanges, and frames for high-powered electronic devices and also used in radio frequency, microwave, high power diode packaging and optical communication system.
With the thermal advantages of copper with the very low expansion characteristics of tungsten, tungsten copper has properties similar to those of silicone carbide, aluminum oxide, and beryllium oxide. The thermal conductivity and low expansion also make tungsten copper alloy an excellent choice even for extremely dense circuits.
The CuW75 tungsten copper alloy is used extensively in thermal mounting plates, chip carriers, flanges, and frames for high-power electronic devices. As a tungsten copper material, it's a composite, so both the thermal advantages of copper and the very low expansion characteristics of tungsten can be utilized.

Copper Tungsten is one of the most popular refractory metal based heat base materials offered today. At China Tungsten we can offer all kinds of tungsten copper heat base as the customer's requirements.


Tungsten copper heat base also called tungsten copper heat sink. Tungsten copper heat base is a heat base which is made of tungsten copper alloy. A heat base is a term for a component or assembly that transfers heat generated within a solid material to a fluid medium, such as air or a liquid. Examples of heat bases are the heat exchangers used in refrigeration and air conditioning systems and the radiator (also a heat exchanger) in a car. Heat bases also help to cool electronic and optoelectronic devices, such as higher-power lasers and light emitting diodes (LEDs).

Tungsten Copper Brick

Tungsten copper alloy brick, is also called tungsten copper brick (tungsten-copper, Cu-W, or W-Cu) is a pseudo alloy of copper and tungsten. As copper and tungsten are not mutually soluble, the tungsten copper alloy brick material is composed of distinct particles of one metal dispersed in a matrix of the other one. The microstructure of tungsten copper brick is therefore rather a metal matrix composite than a true alloy.
Tungsten copper brick combines the properties of both metals, resulting in a material that is heat-resistant, ablation-resistant, highly thermally and electrically conductive, and easy to machine.Tungsten copper brick offered by us is high quality.

Parts are made from the Cu-W alloy by pressing the tungsten particles into a desired shape, sintering the compacted part, and then infiltrating with molten copper. Sheets, rods and bars of the alloy are available as well.
Chinatungsten Online provides tungsten copper alloy brick composites to be used extensively in thermal mounting plates, chip carriers, flanges, and frames for high-powered electronic devices. With the thermal advantages of tungsten copper brick with the very low expansion characteristics of tungsten, tungsten copper brick has properties similar to those of silicone carbide, aluminum oxide, and beryllium oxide. The thermal conductivity and low expansion also make tungsten copper brick an excellent choice even for extremely dense circuits. Tungsten copper brick can be widely used in many fields, we can provide different sizes of tungsten copper brick according to your requirements.