The application of seamless elbow and the introduction of hot pushing process
The company mainly according to customer requirements to manufacture various types and materials of elbow pipe fittings, elbow fittings are divided into: seamless elbow, straight seam elbow, carbon steel elbow, alloy steel elbow, stainless steel elbow and so on. The above elbow pipe fitting is mainly used for a pipe bend. In the total pipe fittings used in the piping system, the proportion is 80%. Usually for different materials of the wall thickness of the elbow to choose different manufacturing process. In the process of processing is commonly used seamless elbow changxing process hot push, stamping, extrusion and so on.
Seamless elbow is a metal fitting that changes the direction of the pipe on the pipe. The connection mode is wire buckle and welding. According to the Angle is divided into: 45 degrees, 90 degrees, 180 degrees and customers need 60 degrees and other angles of seamless elbow. Seamless elbow material is divided into: carbon steel, alloy steel, stainless steel and other non-ferrous metals. The connection mode of seamless elbow and pipe is: direct welding (the most common way) flange connection, hot melt connection, electric fusion connection, threaded connection and socket connection, etc. According to the production process can be divided into: welding elbow, stamping elbow, push elbow, casting elbow, etc. Other names: 90 degree bend, right Angle bend, love and love bend, etc.
Seamless elbow carbon steel material is divided into: 10# 20# A3 Q235A 20G Q345B 20G 16MN ASTM A234 ASTM A105 ST37 ASTM A403, etc
Hot pressing process of seamless elbow: Extrusion forming process using elbow making machine, core mold and heating equipment, is set in the mold of billet in pushing forward movement, under the impetus of the machine in motion is heated, hole diameter and the process of forming, the deformation characteristics of the hot pushing elbow is determined based on the law of metal materials before and after plastic deformation volume tube billet diameter, the tube billet diameter used less than bend diameter,&