Welding description Support Materials: 1. before welding, the contact surfaces should be kept clean and free iron, oil, paint, slag or any other contaminants. Surfaces such as corrosion, welding surface must be safe to remove the iron. If paint is also required to completely remove 2. Welding base metal carbon content must be less than 0.4%. 3. When the room temperature below 10 degrees, the surface of the warm-up operation to be done before soldering. Welding 1. Welding points must have sufficient load of the load requirements. 2. conducted before final welding, weld must be cleaned to prevent slag. 3. Do not interrupt the welding operation once started, to avoid cooling element. 4. Temperature effects can be annealed welded structure, the temperature is less than 600 degrees, and does not reduce stress release safety load. Do not rapidly cooled welding points. 5. Please conduct a thorough inspection of welds shall not be any cracks, dents or nicks. When in doubt, use a non-destructive test methods such as magnetic particle or liquid permeability test. 6. To repair the defective grinding clean, be qualified welding step stop again. Please read the welding requirements. Buy lifting accessories to Tianjin iron owl. Quality of imports, domestic prices. The national supply of imported welded ring, domestic welding ring, welding rings, welding lug, solder the lifting points welded hanging point, imported welding lifting points, imported welding rings, high quality welding ring, alloy steel ring, one ton welding ring , 2 tons of welding ring, welding ring 3 tons, 5 tons welded ring, eight tons of welding rings, 10 rings welded rings, weldable lifting 15 tons, 20 tons of welding rings, 30 tons of welding rings, custom large tonnage welding ring, you are welcome Consulting welded lugs manufacturers, welding rings business, welding rings prices.