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Tungsten Copper Alloy Damascene Electrode Block
1. Description Of Tungsten Copper Alloy Damascene Electrode Block:
Tungsten copper alloy damascene electrode block is produced by powder metallurgy method and is a typical EDM electrode material. Even at a very high temperature (3000°C), the copper in the alloy is liquefied and evaporated, taking away most of the heat, effectively reducing the surface temperature and maintaining its own strength. In addition, it also has good electrical and thermal conductivity and plasticity, which can effectively improve the mechanical properties of the inlaid part.
2. Performance Comparison of Tungsten Copper Alloy Damascene Electrode Block:
| Grade | Density | Hardness | Resistance | Conductivity | Flexural strength |
| g/cm3≥ | HB Kgf/mm2≥ | µΩ.cm≤ | %≥ | Mpa≥ | |
| W50/Cu50 | 11.85 | 115 | 3.2 | 54 | -- |
| W55/Cu45 | 12.30 | 125 | 3.5 | 49 | -- |
| W60/Cu40 | 12.75 | 140 | 3.7 | 47 | -- |
| W65/Cu35 | 13.30 | 155 | 3.9 | 44 | -- |
| W70/Cu30 | 13.80 | 175 | 4.1 | 42 | 790 |
| W75/Cu25 | 14.50 | 195 | 4.5 | 38 | 885 |
| W80/Cu20 | 15.15 | 220 | 5.0 | 34 | 980 |
| W85/Cu15 | 15.90 | 240 | 5.7 | 30 | 1080 |
| W90/Cu10 | 16.75 | 260 | 6.5 | 27 | 1160 |
3. Classification of Tungsten Copper Alloy Damascene Electrode Block:
1). Electrical materials: used in electrical contact and electrical processing, such as electrical contacts, point contacts, electrodes, welding, riveting, electric upsetting, etc. Its good electrical conductivity and resistance to arc ablation ensure the processing efficiency. Accuracy;
2). Instantaneous high temperature material: embedded in some parts that are prone to high temperature ablation and particle erosion, effectively improving its ablation resistance and thermal shock resistance;
3). Guide material: It is mainly used for rolling steel of various wire rods, and plays the role of guide protection.
4. Advantage of Tungsten Copper Alloy Damascene Electrode Block:
Tungsten Copper Alloy has the following advantages:
1). High hardness, low consumption, and the length of the electrode can be shortened.
2). High conductivity and fast processing speed.
3). High hardness and high conductivity make tungsten carbon steel, which cannot be discharged by ordinary copper, be processed smoothly.
4). High tensile strength is suitable for complex shape processing.
5). Long-term discharge can maintain the integrity of the shape of the copper worker, so the precision of the mold is high.
6). The organization is uniform and the contact surface loss is small.
7). Great stability when running at high speed.
5. Application of Tungsten Copper Alloy Damascene Electrode Block:
Tungsten copper alloy damascene electrode block have both the high melting point (3410°C) and low expansion characteristics of tungsten and the high thermal conductivity of copper. The thermal expansion coefficient and electrical and thermal conductivity can be changed by adjusting the composition of the material. It is widely used as contacts of high-voltage, ultra-hydraulic switches and circuit breakers, protection rings, thick anvil materials for electric heating piers, conductive nozzles for automatic submerged arc welding, nozzles for plasma cutting machines, welding heads for electric welding machines, butt welding machines , Rolling welding wheel, gas-sealing electrode and spot sparking electrode, spot welding, butt welding materials, etc.
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