china steel mills welding round steel tube

  • china steel mills welding round steel tube

  • Inspection of china steel mills welding round steel tube bottom: magnetic flux leakage scanning technology is used to detect the corrosion condition of china steel mills welding round steel tube bottom plate (such as corrosion depth and area, crack length, etc.). When there is a defect in the bottom plate of the china steel mills welding round steel tube, the magnetic field distribution will change and the sensor can detect it. The bottom of the oil tank should be free of foreign matters and dry during testing. Weld inspection of china steel mills welding round steel tube bottom plate: when vacuum leak test method is used to detect the tightness of oil tank bottom plate, soap water shall be applied to the weld and vacuum box shall be covered for observation.

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In the manufacturing process of boiler pressure components, raw materials must undergo complex processing deformation and welding, so the steel used to manufacture the boiler must also have good process performance. All materials china steel mills welding round steel tube used to manufacture pressure parts must conform to the relevant national standards for boiler steel. The defects such as delamination, non-metallic inclusion, porosity and looseness in the steel shall be as few as possible, and white spots and cracks are not allowed.

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