Tungsten Carbide Copper Plate
Introduction
Tungsten carbide copper plate is use the high-quality oxygen-free copper powder and tungsten carbide powder, apply pressure molding - high-temperature sintering - copper infiltration process to ensure product purity and accuracy ratio, fine organization and excellent performance. Breaking arc performance, good conductivity, thermal conductivity, and thermal expansion is small. High temperature resistance, electric arc ablation, high intensity, than the major, conductive, thermal conductivity, and easy machining, and having transpiration cooling characteristics as vacuum contact material, the electrode material. Tungsten carbide copper is by pressing - sintering - infiltration process refractory metal material manufacturing. Tungsten carbide content is generally from 50% to 70%, this material has a very high mechanical strength and excellent resistance arc burning capacity, usually used in vacuum electrical contacts.
Technical Specifications
| Grade | Class | Content (% wt.) | Hardness | Conductivity(%IACS) |
| WD10250E | TC5 | WC:50, Cu:50 | 94(HRB) | 45 |
| WD10256E | TC10 | WC:56, Cu:44 | 100(HRB) | 42 |
| WD10270E | TC20 | WC:70, Cu:30 | 37(HRC) | 30 |
Application
50WCCu has high conductivity, widely use for tapped switch sliding blocks, also used in transformers and switches great load contactor.
56WCCu because of its resistance to mechanical wear the best performance, it is the most common electrical contact material, and usually used for switch and arc contactor.
70WCCu commonly used in electrical and electrical upsetting forging, the material has a very high hardness and strength, but it is extremely difficult to process.