The main measures to prevent the bite include controlling welding current, arc length, selection of the appropriate welding angle and the speed of the strip, and to ensure that the welders are proficient.
Measures to ensure that pressure -resistant corrosion resistance of pressure vessel welding joints include choosing the appropriate welding material and filling metal, optimizing the welding technology parameters, after welding heat treatment, and adopting anticorrosive measures.
Welgoing tumor is a tiny bumps formed on the lack of heating mother material or the front weld, which will reduce the intensity of the weld, reduce the effective cross -area area, and affect the aesthetics.
After welding of pressure vessels, it is necessary to perform non -destructive testing, appearance testing, pressure resistance testing, etc. to ensure the quality of the weld and the safety of the container.
The main measures to control welding deformation include the selection of the appropriate welding order, preheating and inter -layer temperature control, and the use of anti -deformation method.
Before welding, you need to determine the team gaps, blunt edges of the weld, clean the slopes, and select the appropriate welding materials and technology parameters.
When selecting welding materials, comprehensive considerations should be considered according to the design requirements of the pressure vessel, the parent material composition, the welding method, and the welding technology.
The residue will reduce the intensity and denseness of the weld, which seriously affects the quality and service life of the weld.
Avoiding measures to avoid welding air holes include the selection of qualified electrodes, controlling welding current and speed, ensuring the cleanliness of welded and welding, and the temperature of the operating environment.
