XinXing Pipe fitting,XinXing Pipe industry

The sealing failure of large flange sealing joints is mainly manifested in the leakage. In various industries in the pipeline system and device inside, the sealing failure of the flange joints can cause a lot of energy, raw materials, a lot of waste. Labour and material consuming, if serious, leading to scrap of equipment and production downtime, casualties and serious environmental pollution. Therefore, the modern petroleum, chemical, petrochemical, atomic energy, aerospace and other industries on the sealing of the pipeline device to put forward higher requirements. The flange joint is a detachable connecting piece, and a sealing more demanding products. The key is in the sealing material, sealing material is good or bad, directly related to the quality of the sealing flange. It can be said that the sealing pad is small, but the relationship between the flange sealing failure.

General large flange bearing capacity is relatively large, the project is generally not easy to deformation, the key is the thickness of the problem. Large flanges in the production of both inside and outside diameter are not the problem, the most not good processing is their thickness. Large flange is too thin will be easy to deformation, of course, in the production process will generally not appear deformation, in the process of machine tool will not happen, but in the use of the process is dangerous.

With the large flange plate cut into strips, and then roll into a circle. Then the processing line, bolt hole etc.. This generally for large flange, the maximum can be 7 meters. Such flanges have good quality assurance. Because the raw material is the medium plate, the density is good. Material for carbon steel, stainless steel, alloy steel, etc..

The characteristics of the production process of large flange: large flange products are all welding products, no threads. Large flange production process has three kinds of forging and rolling and splicing. First cut into the right plate, the length of the blade according to the specifications of the large flange. And then use the volume ring machine to make a circle, with the electrode to weld the interface is strong, the welding mouth to carry out X spectrum test. Then press the flattened, and then lathe processing waterline, chamfering process, finally with indexing disc with a drilling machine processing of bolt hole drilling.