1.Crusher electrode drying
Because mandibles crusher frame welding, welds shall use manual electric arc welding. Before welding electrodes are required 350 ~ 400 ℃, drying 2 hours, and heat preservation with taking after use. But by tracking found the welding process, welding rod of the drying temperature only 200 ℃ or so, so make electrodes in the moisture of the skin of drug adsorption and medicine of the skin that gesso failed to clean, so that caused by water gas and crack tend to increase.
2.Welding cleaning
Because electrode butt weld pieces of the surface water, oxide skin, rust, oil, are sensitive, therefore, to prevent porosity, request a butt weld ends on the surface of a strict cleaning.