Inspection method of stainless steel welding process
Exterior inspection The appearance inspection of welded joints is a simple and widely used inspection method, which is an important part of the inspection of finished products, mainly to find defects and dimensional deviations on the surface of the weld. It is generally inspected by the naked eye and by means of tools such as standard templates, gauges and magnifiers. If there is a defect on the surface of the weld, there is a possibility of defects inside the weld. Density test In welded containers for storing liquids or gases, the intimate defects of the welds, such as penetrating cracks, pores, slag inclusions, incomplete penetration and loose structures, can be found by compactness tests. The methods of compactness test include: kerosene test, water carrying test, water flushing test, etc. Strength test of pressurized containers In addition to the sealing test, the pressure vessel is subjected to a strength test. There are two types of hydraulic pressure te...