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Welding inspection methods
1. Destructive testing (1) Mechanical property experiments include tensile tests, hardness tests, bending tests, fatigue tests, impact tests, etc.; (2) Chemical analysis tests include chemical...
The role of ultrasonic flaw detection in non-destructive testing of welding quality
1. Renovation of the detection surface: Spatter, oxide scale, pits and rust on the welding working surface should be removed. The smoothness is generally lower than ▽4. The trimming width of the flaw...
Manufacturing method of seamless steel pipe
According to different production methods, it can be divided into hot-rolled tubes, cold-rolled tubes, cold-drawn tubes, extruded tubes, etc. 1. Hot-rolled seamless pipes are generally produced on...
10 common welding methods
1. Electrode arc welding Welding rod arc welding is a process that uses a stable burning arc established between the welding rod and the workpiece to melt the welding rod and the workpiece to obtain...

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