The reducing forming of the pipe fitting reducer is to put the tube blank with the diameter of the larger end of the pipe fitting reducer into the forming die, and then press in the direction of the tube blank to move the metal along the cavity and shrink into shape. Due to the different sizes of the diameters of the small and small heads, the shrinkage molding can also be divided into one
The manufacturing process of the reducing pipe: The reducing pipe usually adopts the forming process of reducing diameter plus expanding diameter, expanding diameter or reducing diameter, and can also be formed by stamping. The stamping process is mainly for reducing pipes with special specifications. The shape of the die used for stamping can be designed with reference to the inner surface size of the reducing pipe, and the blanked steel plate is stamped and stretched with a die.
The diameter expansion process of the pipe fitting reducer is mainly to solve the problem that the reduced diameter of the pipe fitting reducer is too large and it is difficult to be formed by reducing the diameter. The tube blank smaller than the large end diameter of the pipe fitting reducer is used to expand the diameter along the inner diameter of the tube blank with an inner die.
The reducing forming of the pipe fitting reducer is to put a tube blank with a smaller diameter than the larger end of the pipe fitting reducer into a forming die, and then press in the direction of the tube blank to move the metal along the mold cavity and shrink into shape . Due to the different sizes of the reduced diameter of the small and small heads, the shrinkage molding can also be divided into one-time compression molding or multiple compression molding.
Sometimes according to the material and product shape needs, the method of diameter expansion and diameter reduction are combined. In the process of reduction or expansion deformation, cold pressing or hot pressing is determined according to different materials and diameter changes. Cold pressing is used. However, for severe work hardening caused by multiple diameter reduction, thicker walls or alloy steel materials, hot pressing should be used to make the pipe fitting reducer.
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