10% to 50% Wolfram Copper Rod And Tungsten Copper Alloy Bar
Brand Name:JX
Certification:ISO
Model Number:Wolfram Copper Rod And Tungsten Copper Alloy Bar
Minimum Order Quantity:10kgs
Delivery Time:25days
Payment Terms:T/T
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Factory Manufacture Wolfram Copper Rod And Tungsten Copper Alloy Bar
The Wolfram Copper Rod is an alloy composed of tungsten and copper.
The copper content of common alloys is 10% to 50%.
The alloy is prepared by copper tungsten alloy powder metallurgy
method and has good electrical and thermal conductivity, good high
temperature strength and certain plasticity.
At very high temperatures, such as above 3000℃, the copper in the
alloy is liquefied and evaporated, which absorbs a large amount of
heat and lowers the surface temperature of the material.
So this type of material is also known as metal sweating material.
Since the tungsten-copper two metals are incompatible with each
other, the tungsten-copper alloy has low expansion property of
tungsten, abrasion resistance, corrosion resistance, high
electrical and thermal conductivity with copper, and is suitable
for various mechanical processes.
The process of preparing tungsten-copper alloy by powder metallurgy
method is: milling – batching mixing – pressing forming – sintering
infiltration – cold working.
Copper tungsten alloy high temperature sintering, The tungsten-copper or molybdenum-copper mixed powder is subjected to press molding and then sintered in a liquid phase at 1300 to 1500℃.
| Code No. | Chemical Composition % | Mechanical properties | ||||||
| CU | Impurity | W | Density (g/cm3 ) | Hardness HB | RES( cm) | Conductivity IACS/ % | TRS/ Mpa | |
| CuW(50) | 50±2.0 | 0.5 | Balance | 11.85 | 115 | 3.2 | 54 | |
| CuW(55) | 45± 2.0 | 0.5 | Balance | 12.30 | 125 | 3.5 | 49 | |
| CuW(60) | 40±2.0 | 0.5 | Balance | 12.75 | 140 | 3.7 | 47 | |
| CuW(65) | 35±2.0 | 0.5 | Balance | 13.30 | 155 | 3.9 | 44 | |
| CuW(70) | 30±2.0 | 0.5 | Balance | 13.80 | 175 | 4.1 | 42 | 790 |
| CuW(75) | 25±2.0 | 0.5 | Balance | 14.50 | 195 | 4.5 | 38 | 885 |
| CuW(80) | 20±2.0 | 0.5 | Balance | 15.15 | 220 | 5.0 | 34 | 980 |
| CuW(85) | 15±2.0 | 0.5 | Balance | 15.90 | 240 | 5.7 | 30 | 1080 |
| CuW(90) | 10±2.0 | 0.5 | Balance | 16.75 | 260 | 6.5 | 27 | 1160 |
The material prepared by this method has poor uniformity and many
closed voids, and the resulting density is usually lower than 98%.
However, the sintering activity can be improved by adding a small
amount of nickel to the activated sintering method, mechanical
alloying method or oxide reduction method to prepare ultra-fine and
nano powder, so as to improve the density of tungsten-copper and
molybdenum-copper alloys.
Wolfram Copper Rod Picture:
However, nickel activation sintering can significantly reduce the
conductivity and thermal conductivity of the material, and
mechanical alloying can also reduce the conductivity of the
material by introducing impurities.
It is difficult to prepare powder by oxide co-reduction method
because of complicated process and low production efficiency.
Tungsten copper alloy sintering, taking advantages of metal
tungsten and copper with high melting point (melting point is
3410℃, tungsten copper melting point 1080℃), density (density of
19.34 g/cm3, tungsten copper density is 8.89 g/cm3);
Copper has excellent thermal conductivity.
Wolfram Copper Rod And Tungsten Copper Alloy Bar (generally ranging
from WCu7 to WCu50) has uniform microstructure, high temperature
resistance, high strength, arc ablation resistance and high
density.
Moderate electrical and thermal conductivity, widely used in
military high temperature resistant materials, high voltage switch
electrical alloy, electrical processing electrode, microelectronic
materials, as parts and components, widely used in aerospace,
aviation, electronics, power, metallurgy, machinery, sports
equipment and other industries.
10% to 50% Wolfram Copper Rod And Tungsten Copper Alloy Bar
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