Technical requirements for pipe elbow center:
1. Since most of the pipe fittings are used for welding, in order to improve the welding quality, the ends are beveled with a certain angle and a certain side. This requirement is also strict, how thick the side, how much angle and deviation The scope is stipulated. The surface quality and mechanical properties are basically the same as those of the pipe. For the convenience of welding, the steel grade of the pipe fitting and the pipe being connected is the same.
2. All pipe fittings must undergo surface treatment, and the iron oxide scale on the inner and outer surfaces shall be sprayed off by shot blasting, and then coated with anti-corrosion paint. This is for export needs. Moreover, pipe elbow center is also for the convenience of transportation in the country to prevent corrosion and oxidation. This work must be done.