what is stainless steel fittings

Stainless steel pipe fittings are one of the pipe fittings. They are made of stainless steel, so they are called stainless steel pipe fittings. Stainless steel pipe fittings include: stainless steel elbow, stainless steel tee, stainless steel cross, stainless steel head, stainless steel flange, etc. The shrinking of the reducer is to heat one end of the stainless steel pipe with a large diameter and a large diameter to a red-hot state, and use a hammer to smash it to reduce the diameter to become a large pipe and a small pipe. ". Sometimes the caliber difference between the two ends of the stainless steel head is too large, so one end of the large-caliber tube is first cut off a few arc-shaped triangular pieces, and then heated to a red-hot state, and hit with a hammer to make the cut notch close to it. Form the seam together, round the small port formed, and then weld the seam. According to the size of the reducing diameter of the reducer, it is divided into one press forming or multiple press forming. In addition to the use of steel pipes as raw materials to produce large and small heads in stamping forming, the large and small heads of some specifications can also be produced by stamping forming process with steel plates. The shape of the die used for drawing is designed with reference to the size of the inner surface of the large and small heads, and the blanked steel plate is punched and stretched by the die. In addition to using steel pipes as raw materials to produce large and small heads, the large and small heads of some specifications can also be produced by stamping and forming process with steel plates. The big and small head (reducer) is a kind of pipe fitting for the pipe diameter. The forming process of stainless steel head is usually reduced diameter pressing, expanding diameter pressing or diameter reducing and expanding diameter pressing, and stamping can also be used for reducers of certain specifications. The diameter reduction forming process of the small and large heads is to put the tube blank with the same diameter as the big end of the big and small heads into the forming die, and by pressing along the axial direction of the tube blank, the metal moves along the cavity and shrinks to form. .