In general, the manufacturing of Dustbin Mould has to go through forging, cutting and heat treatment. In order to ensure the manufacturing quality of the dustbin mould and reduce the production cost, the material should have good forgeability, machinability, hardening capacity, hardenability and grindability; It should also have small oxidation and decarburization sensitivity and quenching deformation and cracking tendency.
1. the malleability
It has low hot forging deformation resistance, good plasticity, wide forging temperature range, low tendency of forging crack and cold crack and precipitation of network carbide.
2. Annealing manufacturability
The spheroidizing annealing temperature range is wide, the annealing hardness is low, the fluctuation range is small, and the spheroidizing rate is high.
3. Machinability
Large cutting parameters, low tool loss and low surface roughness.
4. Sensitivity to oxidation and decarbonization
When heated at high temperature, the oxidation resistance is good, the decarburization speed is slow, the heating medium is insensitive, and the tendency to produce pitting is small.
5. hardening capacity
After quenching, it has uniform and high surface hardness.
6. Hardenability
After quenching, a deep hardened layer can be obtained, which can be hardened by using mild quenching medium.
7. Quenching deformation and cracking tendency
Conventional quenching has small volume change, slight shape warpage and distortion, and low abnormal deformation tendency. Conventional quenching has low cracking sensitivity and is insensitive to quenching temperature and workpiece shape.
8. Grindability
The grinding wheel has small relative loss, large grinding amount without burn limit, insensitive to grinding wheel quality and cooling conditions, and less prone to grinding damage and grinding crack.
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