1022A screw Fracture?

source：King-Tower    Author：1    views：24    Release time：2014-10-27

1. hydrogen embrittlement fracture: If the C1022 material, usually carburizing heat treatment, surface hardness is relatively high, the core hardness is relatively low. The problem may be heat-treated, high hardness of the core, resulting in increased brittleness; Electroplating even do dehydroepiandrosterone treatment, but the risk of hydrogen embrittlement is still very large.

2.groove depth darker head and neck junction leading to vulnerability: the feeling that reason is not great.

3.head and neck angle is too small joint R: Like the second are the result of joint fragile.

Generally good control of these three aspects, this screw using it without any problems.