Plastic Injection Parts are generally processed through several processes such as forging, cutting, and heat treatment. In order to improve the manufacturing quality of the mold and save 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. Forgeability
The plastic injection parts have low hot forging deformation resistance, good plasticity, wide forging temperature range, and low tendency for forging, cold cracking and precipitation of reticulated carbides.
2, annealing processability
The spheroidizing annealing temperature range is wide, the annealing hardness is low, the fluctuation range is small, and the spheroidization rate is high.
3, cutting processability
Large cutting amount, low tool loss and low surface roughness.
4, oxidation, decarburization sensitivity
When heated at high temperature, the oxidation resistance is good, the decarburization speed is slow, and it is not sensitive to the heating medium, and the tendency to produce pitting is small.
5, hardenability
Uniform and high surface hardness after quenching.
6, hardenability
The plastic injection part can obtain a deep hardened layer after quenching, and can be hardened by using a mild quenching medium.
7, quenching deformation cracking tendency
The conventional quenching volume change is small, the shape is warped, the distortion is slight, and the abnormal deformation tendency is low. Conventional quench cracking has low sensitivity and is not sensitive to quenching temperature and workpiece shape.
8, grindability
The relative loss of the grinding wheel is small, the grinding amount is large, and it is not sensitive to the quality and cooling condition of the grinding wheel, and it is not easy to cause abrasion and grinding crack.
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