Stainless steel heads are made
of Q235, Q345, 16Mn and so on. Wall thickness: Sch. 5s -160, the product material is stainless steel 304, 316, 316L, stainless steel pipe fittings, the main connection methods: screw type, clamp type, welding type, etc. Nominal diameter: DN20 * 15, INCH3 / 4 * 1/2, outer diameter 25 * 18 26.7 * 21.3, distance from center to end face 38.
Reducer reducer is also called big and small, reducer and reducer. One of chemical pipe fittings, used for the connection between two pipes with different pipe diameters. According to the shape, it is divided into two types: concentric head and eccentric head. The material of the big and small heads includes stainless steel big and small heads (304304l316316l), alloy steel and carbon steel big and small heads.
Big and small manufacturing industry
Big and small (reducing pipe) is a kind of pipe fittings used for pipe caliber. The forming process usually used is reduced diameter pressing, expanded diameter pressing or reduced diameter plus expanded diameter pressing. For some specifications of reducers, stamping can also be used.
Reduction / Expansion
The diameter reduction forming process of the big and small heads is to place a tube blank having the same diameter as the big end of the big and small heads into a forming die, and by pressing in the axial direction of the blank, the metal is
moved along the mold cavity and contracted to form. According to the reducing diameter of the reducer, it can be divided into one press forming or multiple press forming.
In addition to the use of steel pipes as raw materials for the production of large and small heads, some specifications of large and small heads can also be produced by stamping with steel plates. The shape of the die used for drawing is designed with reference to the size of the inner surface of the big and small heads, and the blanked steel sheet is punched and drawn with a die.