Jaw Crusher arm guard
In terms of manufacturing process (taking high manganese steel as an example):
1. Material selection: Select high manganese steel materials such as zgmn13. High manganese steel has high wear resistance and impact toughness.
2. Casting process: Usually advanced sodium silicate molding or lost foam casting process is adopted to ensure a smooth product surface and a uniform internal structure.
3. Composition control: High manganese steel contains alloy elements such as manganese, chromium, nickel, and molybdenum. Among them, the manganese content is generally between 11.0% and 14.0%, and the specific content varies according to the grade and usage requirements.
4. Heat treatment: This is a key step. Heat to 1100°C for insulation and then take it out of the furnace. After chemical treatment with alloy quenching liquid (which can greatly increase the hardness), then temper at a low temperature of 600°C and take it out of the furnace and air cool. After such a heat treatment process, the hardness can reach more than 60HRC. By refining the grains, it can have high wear resistance and high impact toughness.
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