Production of ultra thin VC heat dissipation graphite mould

Production of ultra thin VC heat dissipation graphite mould

1. The stability of raw materials of VC graphite molds, including the bending resistance and thermal conductivity of materials. Poor VC graphite molds are easy to crack in the sintering process and may show the phenomenon of copper sticking;

2. Unstable thermal conductivity will lead to uneven heating of VC and unsealed welding, which will directly affect the yield of VC.

3. For ultra-thin VC manufacturers, there are requirements for the appearance roughness of VC graphite mold. Ultra-thin VC graphite mold directly contacts ultra-thin VC,

4. If there is a knife connection mark on the surface, it may appear on the surface of ultra-thin VC during sintering, so as to form the defect of ultra-thin VC. Therefore, in order to reduce this problem,

5. Generally, the surface of VC graphite mold is required to be processed by grinder to ensure that the surface roughness Ra0.2 ~ ra0.6 is equivalent to the mirror effect of the surface, which is very flat.