1. Tightness inspection, welded containers for storing liquids or gases, good price and quality Anti-corrosion pipeline welds with non-compact defects, such as penetrating cracks, pores, slag inclusions, incomplete penetration and loose structure, etc., can be compacted Sex test to find out. The tightness test methods include: kerosene test, water-carrying test, water wash test, etc.

2. Strength test of pressure vessel. In addition to the tightness test, the pressure vessel must be subjected to strength test. There are two common types: water pressure test and air pressure test. They can test the tightness of welds of vessels and pipes that work under pressure. The air pressure test is more sensitive and faster than the water pressure test, and the product after the test does not need to be drained, which is especially suitable for products with difficult drainage.

But the risk of the test is greater than that of the hydraulic test. When conducting the test, the corresponding safety technical measures must be followed to prevent accidents during the test.

3. Hydrostatic test, each good price and quality Anti-corrosion pipeline should be subjected to hydrostatic pressure test without leakage, the test pressure is calculated by pressing P=2ST/D where S—the test stress of hydrostatic pressure test Mpa , The test stress of the hydrostatic test is selected according to 60% of the minimum yield value specified by the corresponding steel strip standard (Q235 is 235Mpa).

4. Physical inspection methods, physical inspection methods are methods that use some physical phenomena to measure or inspect. Good price and quality Anti-corrosion pipeline materials or internal defects of workpieces are generally inspected by non-destructive flaw detection methods. Non-destructive testing includes ultrasonic testing, radiographic testing, penetrating testing, magnetic testing, etc.

5. Judging from the surface, that is, in appearance inspection. Good price and quality Anti-corrosion pipeline welding joint appearance inspection is a simple and widely used inspection method. It is an important part of finished product inspection, mainly to find defects and dimensional deviations on the weld surface. It is generally inspected by naked eyes, with the help of tools such as standard templates, gauges, and magnifying glasses. If there are defects on the surface of the weld, there may be defects inside the weld.