Shengji News

    Mold preparation: according to the requirements of reducer to make mold cavity;
Pipe change: put the metal pipe to be changed into the mold cavity, one end of the metal pipe is sealed, the other end of the metal pipe is connected with the hydraulic oil pressure pump, the oil pressure pump is pressurized to change the pipe, multiple pipe changes can be used, the pressure of the oil pressure pump is 10MPa ~ 24MPa;
Mechanical cutting: common mechanical cutting method is used to cut off the redundant end of the metal pipe through the reducer and remove the burr;
Tempering: low temperature tempering is used to eliminate the internal stress of reducer during the process of pipe changing. The temperature of low temperature tempering is 180 ℃ ~ 250 ℃. The invention improves the appearance function of the workpiece forming, at the same time, makes the workpiece more energy-saving and prolongs the service life, which is mainly applied in various fields of the hardware industry, such as faucet, bathroom, hardware, lock and other industries.
Preparation of raw materials: select copper pipe, stainless steel pipe or aluminum pipe with wall thickness of 0.4mm-2.5mm;