How to ensure the welding quality of GB5310 high-pressure boiler seamless steel pipes during use

1. Do a good job of quality inspection before welding

To ensure the welding quality of GB5310 high-pressure boiler seamless steel pipes, they should be inspected before welding to ensure that there are no local scratches and grooves on the surface of GB5310 high-pressure boiler seamless steel pipes. If there are any defects, they should be repaired. In addition, the welding end face should be polished flat without cracks and heavy skin. The burrs, bumps, locks, slags, oxide scales, and other surface iron filings that affect the quality of the joints on the surface of the port should be cleaned.

2. Select welding rods that meet the conditions

Choosing welding rods that meet the chemical composition, mechanical properties, use and construction conditions of GB5310 high-pressure boiler seamless steel pipes is also an effective measure to ensure the welding quality of GB5310 high-pressure boiler seamless steel pipes, and the welding rods should be kept dry during use. During assembly, the weldment should be padded firmly, and reasonable measures should be taken to prevent additional stress and deformation during welding.

3. Do not ignite and strike the arc at will

When welding GB5310 high-pressure boiler seamless steel pipe, the arc should be struck in the groove or joint. Do not ignite and strike the arc at the non-welding part of the surface of the GB5310 high-pressure boiler seamless steel pipe. In addition, the quality of arc striking and arc ending should be guaranteed during welding. The arc pit should be filled when the arc is ended. If the temperature during welding is lower than zero degrees Celsius, the GB5310 high-pressure boiler seamless steel pipe should be preheated within a certain range of the starting welding point, and the shape and size of the welding pool should be correctly controlled.