Tungsten Copper Alloy Packaging Sheet

Product Description

High-conductivity copper-tungsten alloy CuW90 tungsten-copper packaging sheet for electronic heat sink is precision imported high-density tungsten-copper alloy CuW90 arc-ablation-resistant tungsten-copper plate for high-temperature mold tungsten-copper plate CuW90 imported high-melting point tungsten-copper alloy with high hardness CuW90 tungsten-copper plate for high-temperature resistance CuW90 Tungsten copper rod CuW90 tungsten copper alloy sintering process can be customized processing W90 thickened tungsten copper plate CuW90 anti-ablation tungsten copper plate high conductivity W90 tungsten copper alloy electronic package chip.

Introduction to Precision CuW90 Tungsten Copper Alloy

CuW90 tungsten-copper alloy contains tungsten W as high as 90±2% and copper 10%. This also makes its density as high as 16.75g/cm3, hardness not less than 260HB, and bending strength up to 1160. However, the copper content is small, the electrical conductivity is only 27IACS%, and the softening temperature is not lower than 900 degrees Celsius.

Properties of CuW90 Tungsten Copper Alloy

1. Proportion 90W 10Cu

2. Density: 16.75g/cm3

3. Conductivity: 27IACS%

4. Hardness: >260HB

Features of Precision CuW90 Tungsten Copper Alloy

Since the tungsten content in CuW90 tungsten-copper alloy accounts for a large proportion, tungsten is hard but also brittle, which also creates good bending strength and hardness of tungsten-copper, but its flexibility and ductility are low, so medium precision It is not suitable for large-angle high-strength bending and drawing operations. Zhongwei Precision Tungsten Copper Alloy Packaging Sheet material has superior heat resistance, good thermal conductivity and electrical conductivity, and at the same time has a thermal expansion coefficient equivalent to that of silicon wafers and ceramic materials, and the relative tungsten copper can be controlled under certain conditions. content to adjust its properties. Therefore, tungsten-copper composite material has become one of the ideal materials in the field of high-temperature materials for electronic packaging.

Application of Precision CuW90 Tungsten Copper Alloy

The research and development of CuW90 tungsten-copper alloy has also been continued, and it is applied to solid seals with heavy load sliding friction, high speed and movement. Zhongwei precision instruments require non-magnetic, low expansion and high elastic modulus. , shielding and other parts with special requirements. Zhongwei Precision is not only in some fields such as devices that can withstand large heat transfer in experimental polymerization reactors, but also in some communication equipment, office equipment and sports equipment. Tungsten copper materials have also begun to appear.

The main application of precision CuW90 tungsten copper alloy

CuW90 tungsten-copper alloy is mainly used to make heat sink materials, and because of its good performance in all aspects, CuW90 tungsten-copper alloy can also be used in heavy industry.

Preparation of CuW90 Tungsten Copper Alloy

CuW90 tungsten-copper alloy is mainly prepared by high-speed pressing technology, and then infiltrated at a high temperature of 1400°C in a furnace to obtain 90W-10Cu composite material. The influence of compaction quality on compaction density and micromorphology of compacted pyrometers was studied. The results showed that as the pressing temperature increased, the density of the green compact increased, and a W skeleton with a relative density greater than 80.65% could be obtained by high-speed pressing at 950 °C. The tungsten particles were densely connected, distributed evenly, and had good pore connectivity. When the mass of the compact increases, the density of the compact decreases due to the decrease of the applied energy density. Through two high-level pressings, the compact density is further increased; the relative density of CuW90 material reaches 99.5%, and the thermal conductivity is 175W/(m.K). The indicators of CuW90 tungsten-copper alloy all meet the requirements of corresponding heat sink materials.

Precise Preparation of CuW90 Tungsten Copper Alloy Conclusion

1. High-speed pressing at 950°C can obtain a W skeleton with a relative density greater than 80.65%, and CuW90 composites can be obtained through infiltration.

2. Perform high-speed pressing on tungsten preforms at room temperature, 600°C and 950°C. As the pressing temperature increases, the density of the compacts increases.

3. During high-speed pressing, as the powder mass increases, the density of the green compact decreases due to the decrease of the external energy density. With the increase of high-speed pressing times, the green compact density is improved.

4. The 90W-10Cu material and thermal expansion coefficient and other indicators prepared by high-speed pressing technology combined with infiltration process all meet the requirements of corresponding heat sink materials.

Tungsten Copper Sheet

1: Thickness starting from 2.0mm.

2: Width/length is standard size, if there are special specifications, it can be customized according to customer requirements.

3: The price of tungsten copper plate is mainly calculated by KG.

4: Plate mold size Tx100x100, Tx100x200, Tx200x300

5: Tungsten copper strips can be customized according to customer requirements.

Purchasing instructions:

The company's domestic and imported black copper products can be wholesaled or retailed. Before purchasing this product, please call to verify the specific size, price and delivery method. Tungsten Copper Alloy Packaging Sheet can be processed and sold as required, non-standardized.

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