1. The saw blade to be welded should be cut off at any time before welding, and welding should be carried out immediately after cutting, to avoid oxidation of the welding surface that affects the quality due to excessive storage time.
2. The saw blade is best cut with a cutter or a grinding wheel cutter to ensure that the butting surface is straight and tight.
3. After the saw blade is placed on the two-stage platform, carefully check whether the two end faces are connected tightly. If there is any up-down or left-right misalignment, correct it immediately.
4. Both ends of the saw blade placed on the platform must be pressed tightly, and there should be no looseness.
5. The feed rate of the movable electrode platform should be adjusted to the same size as the welding burnout plus upset forging, and should not be too large or too small.
6. The welding current is proportional to the size of the welding section. The welding current is realized by changing the number of welding transformer stages.
7. Before welding, check whether the contacts of each switch and limit are correct, flexible and reliable.
8. The temperature of the welding environment must be kept above 18°C.
