General technical requirements
1. Deoxidize the parts.
2. The processed surface of the parts should not have scratches, abrasions or other defects that damage the surface of the parts.
3. Remove burrs and flash.
Heat treatment requirements
1. HRC50~55 after conditioning.
2. The parts are high-frequency quenched, tempered at 350~370℃, HRC40~45.
3. Carburizing depth is 0.3mm.
4. Perform high temperature aging treatment.
Tolerance requirements
1. Unmarked shape tolerances should comply with the regulations of GB1184-80.
2. The allowable deviation of unmarked length dimensions is ±0.5mm.
3. The casting tolerance zone is symmetrical to the basic dimensional configuration of the blank casting.
Part corners
1. No fillet radius R5.
2. All unfilled chamfers are 2×45°.
3. Sharp corners/points/sharp edges are blunt.
