Reasons for problems in making high purity graphite molds

When we are making high-purity graphite molds, we should all know that this product is a product obtained after industrial furnace processing, so during processing, if there is no correct operation, it is likely to affect the mechanical properties of the product, leading to its rupture, affecting the cycle of use.

So at the time of operation, what is the reason for these problems in the high-purity graphite mold? Here I will explain to you.

1, in fact, the quenching temperature of the steel is much lower than the quenching temperature of the mold.

2, die steel before quenching nodularization process treatment is not correct, poor nodularization organization.

3, quenching heating temperature is high or holding time is too long.

4, the mold in the furnace is improperly placed, easy to overheat around the electric level or heating element.

5, the quenching heating process parameters are not selected properly, and the graphite mold with large cross-section changes will generate overheating in thin cross-section and sharp corners.

The above is that when we are making, the high-purity graphite mold has problems because of the process, so in order to reduce these problems, we must strictly control the quenching temperature and holding time. And when processing, pay attention to the instrument calibration of the equipment.