General technical requirements
1. The parts are descaled.
2. On the machined surface of the parts, there should be no defects such as scratches, scratches, etc. that damage the surface of the parts.
3. Remove burrs.
Heat treatment requirements
1. After quenching and tempering, HRC50～55.
2. The parts are subjected to high frequency quenching, tempering at 350～370℃, HRC40～45.
3. Carburizing depth 0.3mm.
4. Carry out high temperature aging treatment.
Tolerance requirements
1. The unmarked shape tolerance shall meet the requirements of GB1184-80.
2. The allowable deviation of the unmarked length dimension is ±0.5mm.
3. The tolerance zone of the casting is symmetrical to the basic dimension configuration of the blank casting.
The corners of the parts
1. The fillet radius R5 is not specified.
2. The unmarked chamfer is 2×45°.
3. Sharp corners/sharp corners/sharp edges are blunt.
Post time: Aug-08-2022