
Inspection specification for heat treatment pieces
- Categories:reducer
- Author:
- Origin:
- Time of issue:2018-11-18 20:40
- Views:
(Summary description)Objective: in order to standardize the inspection and acceptance of heat treatment parts, the inspector can accurately judge whether the parts are qualified
Inspection specification for heat treatment pieces
(Summary description)Objective: in order to standardize the inspection and acceptance of heat treatment parts, the inspector can accurately judge whether the parts are qualified
- Categories:reducer
- Author:
- Origin:
- Time of issue:2018-11-18 20:40
- Views:
Inspection of part hardness:
1. Equipment for testing hardness
热处理件的类型 |
使用的设备 |
渗碳件 |
TH110硬度计接D杆 |
调质件 |
TH160里氏硬度计接G杆 |
氮化件 |
TH110硬度计接C杆 |
2. Scope of hardness test allowed
普通件 |
备件 |
重点客户产品 |
渗碳件±3HRC |
渗碳件±2HRC |
渗碳件±1HRC |
调质件±10HB |
调质件±5HB |
调质件±2HB |
3. Hardness test method
渗碳件、表淬件 |
齿轮轴、齿轮类零件的检验是将齿顶抛平并光滑,一个齿检验三个部位(左、中、右)的硬度,光轴类零件根据工艺要求的检验部位对其检硬度 |
调质件 |
将零件抛平并抛深些,齿轮、长度在1米以内的轴类零件检一个点,长度大于1米以上的轴类至少要检两个点(端部、尾部),两点硬度值相差不能超过10HB;对于同一个制令号、图号的多个零件(10个以上的销)可以采取抽检的方式进行检验 |
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