Treadmill American Standard Fasteners
Quick Details
Place of Origin:Guangdong, China (Mainland), Guangdong, China (Mainland)
Brand Name:Lanejoy, Lanejoy
Model Number:PG18
Standard:GB
Material:Carbon Steel
Surface treatment:Zinc Plated Polished
Certificate:ISO9001:2015
Color:Zinc White
Size:Customized
Price Terms:FOB,CIF,CRF,EXW and others
Delivery Time:Within 20 workdays after receive payment
Model:Pg18
Packaging & Delivery
Packaging Details
opp bag/carton
Delivery Time
7 days
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Main Markets | Total Revenue(%) |
Southeast Asia | 20% |
South Asia | 20% |
Mid East | 20% |
Eastern Europe | 18% |
Northern Europe | 10% |
North America | 10% |
Africa | 2% |
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Surface heat treatment is divided into two categories: one is surface quenching and tempering heat treatment, and the other is chemical heat treatment. The hardness test method is as follows:
Surface quenching and tempering heat treatment
Surface quenching and tempering heat treatment is usually performed by means of induction heating or flame heating. The main technical parameters are surface hardness, local hardness and effective hardened layer depth. Vickers hardness tester can be used for hardness testing, or Rockwell hardness tester can be used. The choice is related to the depth of the effective hardened layer and the hardness of the workpiece surface, which involves three types of hardness machines.
Vickers hardness tester is an important means to test the surface hardness of the heat treatment workpiece, he can use the experimental force of 0.5-100KG, test thin to 0.05mm thick surface hardening layer, his accuracy is the highest, can distinguish the hardness of the heat treated workpiece surface Minor differences, in addition, the effective hardened layer depth is also detected by the Vickers hardness tester. Therefore, it is necessary to use a Vickers hardness tester for a unit that performs surface heat treatment processing or uses a large number of surface heat-treated workpieces.