Industrial News
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Why is stainless steel not easy to corrode?
1. Stainless steel does not rust, it also generates an oxide on the surface. The rust-free mechanism of all stainless steels currently on the market is due to the presence of Cr. The fundamental reason for the corrosion resistance of stainless steel is the passive film theory. The so-called passi...Read more -
Common pipe fittings
There are many types of pipe fittings, which are classified according to their use, connection, materials, and processing methods. By purpose 1. Pipe fittings for connecting pipes are: flange, joint, pipe clamp, ferrule, hose clamp, etc. 2, change the pipe direction of the pipe: elbow, elbow ...Read more -
What should be done on the surface of high-frequency anti-corrosion spiral steel pipe?
With the continuous development of China’s economy, the country vigorously develops the energy industry. Pipeline long-distance oil and gas pipelines are an important way of energy security. In the anti-corrosion construction process of oil (gas) pipelines, the surface treatment of anti-cor...Read more -
How to deal with the revers of spiral steel pipe
How to deal with the revers of spiral steel pipe Along a straight line or curve or flat portion of the curved portion of sheet metal bent into upstanding flange stamping method. Flanging type:According to the nature of the deformation, it can be divided into elongated cuffs and compression type f...Read more -
NDT Testing
NDT testing means without prejudice or affect the detected object performance, not hurt at being provided to detect objects within the organization, the use of material internal structural abnormalities or defects heat, sound, light, electricity, magnetism and other reactions caused by changes to...Read more -
Crack detection
Weld cracks in a pressure vessel are mostly belonging delayed cold cracking and the distribution is very broad. In the process of the pressure vessel manufacturing and field compound by special attention, but because of its “delay”, under the action of restraint stress, often in a yea...Read more