Description of gear precision heat treatment

The description of gear precision heat treatment is as follows for reference.

Gear precision heat treatment:

It includes the structure, hardness, effective hardened layer depth, residual stress, tooth profile, tooth direction and other indicators of the quality dispersion of the carburized layer.

Basic conditions of gear precision heat treatment:

1. The uniformity of materials.

The material is required to have good composition and organization uniformity, that is, the consistency of the hardenability of the material.

The fluctuation of the material's hardenability will inevitably lead to the dispersion of the structure, hardness and deformation after heat treatment.

The advanced steel-smelting composition uniformity has strict internal control indicators, and the composition uniformity expressed in carbon equivalent can stably reach ±(0.01%～0.02%).

2. Well-distributed temperature field and fluid field.

Including carburizing, nitriding, carbonitriding gas flow field and quenching liquid fluid field.

The above is shared todaygearRelevant instructions for precision heat treatment, including but not limited to, welcome to add if there are any deficiencies.