304 thin-walled stainless steel pipe fittings include 90 ° elbow type A and 90 ° elbow type B. these two kinds of compression stainless steel pipe fittings connect different pipe fittings and pipes according to different sockets, and adopt double compression connection technology. There is another pipe fitting in the elbow, that is, 45 ° elbow. 45 ° elbow is also divided into type A and type B. the bell mouth at both ends is the same as that of 90 ° elbow. The 45 ° elbow a type of thin-walled stainless steel pipe fittings has sockets at both ends and is clamped and connected with the thin-walled stainless steel pipe with the same pipe diameter. This kind of pipe fittings is not widely used in the actual waterway design, and the manufacturing is a little cumbersome compared with other pipe fittings. The thin-walled stainless steel 45 ° elbow has B-shaped ends, and one end is a socket, which is convenient for clamping and pressure connection with the thin-walled stainless steel water pipe; The other end is a straight pipe, which is convenient for clamping and pressure connection with pipe fittings.
Forging method. Machining flanges through forging can be divided into two types: free forging and die forging. Free forging involves compression processing under a forging press