The main technological process of steel pipe fittings manufacture

　　Blanking forming (welding) surface heat treatment processing cutting nondestructive testing of surface protection

　　(1) blanking

　　Pipe materials used mainly for pipes, sheet and rod, according to the material properties and the shape of the billet blanking methods used for the product. Blank shape, size and other requirements according to the technological requirements of the different products.

　　For the pipe, the cutting method with common sawing machine or bow sawing machine cutting, gas cutting, plasma cutting.

　　For plate, blanking methods with gas cutting, plasma cutting, punching, punching.

　　For the bar, the cutting method with common sawing machine or bow sawing machine cutting, punching and shearing cutting.

　　(2) forming (welding)

　　For all the pipe manufacturing process, forming is the indispensable process. Due to the need of the forming process of different products is different, the length is longer, will also be described in the first section 15.2.4. Here, in part forming process including heating and welding a briefly introduction.

　　We have adopted advanced production equipment and technologies to manufacture our seamless steel pipes and k55 casing pipe,which can not only improve product quality, but also save raw materials. Our products have high strength, good toughness and resistance to corrosion.