Explosive welding method for C-22 nickel-based alloy composite steel plates

Abstract

The invention relates to a metal explosive cladding process, which is characterized by comprising the following steps: treatment for substrates, treatment for composite materials, brushing and matching, explosive cladding, repair welding, heat treatment and post-treatment. The method provided by the invention has the advantage that the method can effectively compound C-22 nickel-based alloy plates and common steel plates, thereby ensuring that composite steel plates have needed strength on the premise of having all the advantages of C-22 nickel-based alloy, so that the consumption of expensive metals is saved. Meanwhile, products provided by the method have high welding quality to ensure long-term stable use with no fall-off.

Description

Technical field

[0001] The invention relates to a metal explosive compounding process. Background technique

[0002] The main components of the C-22 alloy are: 56Ni-22Cr-13Mo-3W-3Fe, and alloy elements such as chromium, molybdenum and tungsten have been added to the critical state. Among them, molybdenum and tungsten are used to enhance the uniform corrosion resistance of the alloy in reducing environments (such as hydrochloric acid and dilute sulfuric acid). Elemental chromium is beneficial for corrosion resistance in oxidizing environments. In oxidizing medium, the uniform corrosion resistance is better than C-4, C-276 and 625 alloys, and the local corrosion resistance and stress corrosion resistance are also excellent. In summary, C-22 achieves better corrosion resistance than most nickel-based alloys in both oxidizing and reducing environments. In addition, C-22 has good thermal stability. As a result, the corrosion resistance of the welding heat-affected zone is bet...