The cold-formed clad head has precise dimensions and stable quality. There is no surface roughness and oxidation caused by heating, and the clad head has a beautiful appearance; in addition, there is no need to worry about material deterioration caused by heating.
According to the characteristics of cold formed clad head, there is a problem that needs attention, that is, stress corrosion cracking.
A certain amount of residual stress and cold work strengthening will occur during cold forming, and the clad head is no exception. In case of container installation stress, welding residual stress, and thermal stress, stress superposition will occur. If it is used in a stress corrosion environment, stress corrosion cracking may occur in a short time.
If the material is carbon steel, cracks will occur in the environment of nitrate, ammonia, alkaline sodium, etc.; if it is austenitic stainless steel, cracks will occur in a specific environment with chloride ions, this kind of crack is called stress corrosion cracking.
Baoji Taicheng Clad Metal Materials Co., Ltd is a professional clad head manufacturer. Because we do not know the design and use conditions of your various boiler and pressure vessels, so if the clad head you order is used under the above conditions, please be in the design stage Consider the method of eliminating residual stress and selecting suitable materials, and make it clear before production, so that necessary processes can be adopted to eliminate residual stress to meet the design requirements. For details, please contact yangchen@bjtcjs.com.
