If the iron sheet is completely rusted, the rusted part must be removed, and the rusted surface part must be ground off with a small grinding head, and then an iron sheet with the same size is cut and fixed by argon arc welding or copper covered electrode gas welding, and then the iron sheet is connected with the mother ceiling with ultra-low temperature solder by a small liquefied gas spray gun. The following welding methods can be used.
A, low temperature welding tools and materials
Tools: The capillary part can be welded with electric soldering iron as heat source, and small and medium-thick parts can be welded with flame, and the third-generation special porous spray gun for liquefied gas can be selected.
Materials: WEWELDING88C low temperature stainless steel welding wire and WEWELDING88C-F flux.
Second, the use principle of low temperature welding and matters needing attention
Use all available heat sources to heat the welding part of the parent body to about 200 degrees, and melt the welding wire through the heat conduction of the parent body. During the molding process, it always works under the premise of maintaining the function of Viodine Weeding 88 C-F flux. Be careful not to burn welding wire and flux with flame intentionally, and pay attention to supplement the heat source to prevent the mother temperature from suddenly rising or overheating.