Pig iron can be welded with electric welding and can be welded.
When using the hot welding process, J506 electrodes or Z308 are used for welding. The matrix is ??preheated at about 500 degrees and slowly cooled after welding. This type of welding is suitable for production needs and has relatively low production costs. , but it is best to have welding process conditions. The disadvantage is that the process requirements are higher, and crack risk control relies on higher process control.
If it is a cold welding process, use WEWELDING777 high crack-resistant cast iron electrode for welding, eliminating the need for preheating and post-weld insulation. This is suitable for repairing cast iron equipment, and the unit price of materials is relatively high, so Emergency repair and repair can be adopted if the demand for units is not large, but the process is simple and the crack resistance is more secure for the maintenance of important cast iron equipment.
Introduction to WEWELDING777 cast iron welding rod for maintenance
1. AWS/SFA A5.15 standard.
2. Suitable for repair welding of various types of cast iron (including ductile iron, gray iron, and high Cr), as well as dissimilar welding of cast iron and steel.
3. Used for low-pressure water welding of cast iron pipes.
4. The alloy metal welding core design is coated with unique flux and has crack resistance.
5. The weld deposit can be machined.
2. What is WEWELDING777 used for?
–Welding cast iron and steel, welding different cast irons–Transmission gear box
–Gray cast iron, malleable iron or ductile iron–Sewer pipes
Three , WEWELDING777 technical parameters
Diameter (mm) φ2.5 φ3.2 φ4.0
Current (ampere) 60-100 85-110 90-140
Packaging weight (pounds) 2 2 2
Photos of genuine WEWELDING777 packaging and welding rods
IV. Tips on the use of WEWELDING777
1. It is necessary to do the appropriate work before welding For surface cleaning, it is best to cut the welded joint diagonally into a U-shaped groove.
2. Drill stop holes at both ends of the crack to prevent the crack from expanding during the welding process.
3. When the repair angle is not good, you can use WEWELDING100 welding rod to cold groove to form an effective U-shaped or V-shaped groove.
4. Weld with as little current as possible, with medium arc length and slightly tilted toward the welding direction.
5. It is recommended that the weld bead use a short and thin weld bead and a narrow lateral swing of the welding torch. Before stopping the arc welding, fill the welding mouth. Heat treatment is usually not required and the parts are allowed to cool slowly.