时间：2014-03-22 19:39　作者：admin　点击： 次

Due to the difference in heat inside and outside of the metal, the elastic pin coupling will expand unevenly and generate internal stress, which is called thermal stress.If the temperature is too high during annealing to cause graphite cross-section, it will not be easy to cut and cause overheating and deformation during quenching.Decarburization causes soft spots on the surface of the workpiece, reducing surface hardness, wear resistance and fatigue strength.
The elastic pin coupling is overheated and overburned. Overheating refers to the growth of coarse grains after the steel exceeds the allowable temperature during heating.
The elastic pin coupling is beryllium oxide, the hard and brittle mesh carbide of the elastic pin coupling; the decarburization of the elastic pin coupling refers to the phenomenon that all or part of the carbon on the steel surface is burned off.
Elastic pin coupling, generally elastic pin coupling, nylon rod pin coupling, the former is connected by several screws, the nut end of the screw is equipped with an elastic washer, and the latter uses a nylon rod, 2 and a half The section is matched with a hole as large as the drill, inserted with a nylon rod, and covered with a baffle outside, and the pin coupling can play a compensation role.