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русскийThe manufacture of molds generally goes through several processes such as forging, cutting, and heat treatment. In order to ensure the manufacturing quality of the mold and reduce the production cost, the material should have good forgeability, machinability, hardenability, hardenability and grindability; it should also have small oxidation, decarburization sensitivity and quenching Deformation cracking tendency.
1. Malleability
It has low hot forging deformation resistance, good plasticity, wide forging temperature range, low tendency of forging cracking, cold cracking and precipitation of network carbides.
2. Annealing process
The spheroidizing annealing temperature range is wide, the annealing hardness is low and the fluctuation range is small, and the spheroidizing rate is high.
PE pipe fitting mould
3. Machinability
3. Machinability
The cutting amount is large, the tool loss is low, and the machined surface roughness is low.
4. Oxidation, decarburization sensitivity
When heated at high temperature, it has good anti-oxidation capacity, slow decarburization speed, insensitive to heating medium, and little pitting tendency.
5. Hardenability
After quenching, it has uniform and high surface hardness.
6. Hardenability
After quenching, a deep hardened layer can be obtained, and it can be hardened with a mild quenching medium.
7. Quenching deformation cracking tendency
The volume change 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 cracking sensitivity and is insensitive to quenching temperature and workpiece shape.
8. Grindability
The grinding wheel is relatively small in loss, and the amount of grinding without burn limit is large. It is not sensitive to the quality of the grinding wheel and cooling conditions, and it is not easy to cause abrasion and grinding cracks.
