In recent years, the mold industry has developed rapidly in China, followed by increasingly fierce market competition. What are the requirements for the material properties of precision plastic mold manufacturing?

1. Forgeability

It has low resistance to hot forging deformation, good plasticity, wide forging temperature range, low tendency for forging cracking, cold cracking and precipitation of network carbides.

2. Annealing processability

The spheroidizing annealing temperature range is wide, the annealing hardness is low, the fluctuation range is small, and the spheroidizing rate is high.

3. Sensitivity to oxidation and decarburization

When heated at high temperature, it has good oxidation resistance, slow decarburization speed, is not sensitive to the heating medium, and has a small tendency to generate pits.

4. Machinability

Large amount of cutting, low tool wear and low surface roughness.

5. Hardenability

After quenching, it has uniform and high surface hardness.

6. Hardenability

After quenching, a deeper hardened layer can be obtained, and it can be hardened with a mild quenching medium.

7. Grindability

The relative loss of the grinding wheel is small, the limit grinding amount without burn is large, it is not sensitive to the quality of the grinding wheel and the cooling conditions, and it is not easy to wear and crack.

8. Quenching deformation and cracking tendency

The volume of conventional quenching is small, the shape is warped, the distortion is slight, and the tendency of abnormal deformation is low. Conventional quenching has low sensitivity to cracking, and is not sensitive to quenching temperature and workpiece shape.