ZG40Mn how to weld 70 wire that I use, preheat before welding, keep warm after welding, still appear crack
How warm are you? ZG40Mn welding performance is very poor, whether to consider welding wire MG600 MG660 (I have not tried 70 wire welding ZG40mn)
You can use WE600 electrode or wire welding, cold welding welding process can be, if the conditions do preheating, 200 degrees preheating better after welding heat treatment, welding had no problem before.CharacteristicWE600 is a kind of low heat output, suitable for special nickel chromium alloy steel electrode welded all-round, universal design is extremely wide, the general strength of parent materials with high strength, excellent welding performance, stable arc, beautiful shape of seam, in oil, water and rust conditions can welding effect is excellent, can be welded different steel.applicationSuitable for welding of tool and mould, high-speed tool steel, hot work tool steel, steel, cast steel, T-1 steel, Nai Zhengang, vanadium steel, spring steel, martensitic stainless steel, austenitic stainless steel, ferritic stainless steel, and the unknown as well as between the various different types of steel welding etc.. Such as high pressure valves, broken bolt clearance, shaft transformation, etc., the effect is very satisfactory.
1 、 WE600 welding rod or welding wire can be used.2, WE600 alloy steel electrode is a suitable tool and die welding, high-speed tool steel, hot work tool steel, steel, cast steel, T-1 steel, steel, vanadium steel, seismic spring steel, steel, and a variety of unknown type of special welding of dissimilar steel materials, the main feature is the wide universality, high strength matching, high crack resistance, used for special metal and steel maintenance repair places unknown.3, also known as welding: welding, melt, is a kind of heating, high temperature or high pressure way of metal or other thermoplastic materials such as plastic manufacturing process and technology.
