Carbon steel equal tee Divided by Process:
1. Hydraulic swelling The hydraulic expansion of the three-way is a forming process that compensates the expansion of the branch pipe by axial compensation of the metal material.
The process is to use a special hydraulic press, will be equal to the three-lane diameter of the tube
The liquid is injected into the billet, and the medium motion extrusion tube billet is synchronized with the two horizontal side cylinders of the hydraulic press, and the volume becomes smaller after the tube billet is squeezed, and the liquid in the Tube billet decreases with the volume of the Tube billet and the pressure , when the pressure required for the expansion of the three-part branch pipe is reached, the metal material flows along the cavity of the mold under the dual action of the liquid pressure in the side cylinder and the tube billet and swells out of the branch pipe.
Three-form hydraulic expansion process can be formed once, the production efficiency is high, the head of the three links and shoulder wall thickness have increased. Because of the seamless three-form hydraulic expansion process required equipment tonnage is large, at present, the domestic is mainly used for less than DN400 standard wall thickness three-form manufacturing.
The forming material to which it applies
For cold hardening tendency is relatively low low carbon steel, low alloy steel, stainless steel, including some non-ferrous metal materials, such as copper, aluminum, titanium and so on.
2. Hot pressing forming
Three-dimensional hot-pressing forming is a tube billet larger than a three-dimensional diameter, flattened about the size of the three-part diameter, and the cold-drawn three links open a hole in the area of the tensile branch tube; The tube billet is heated and placed
Into the forming die, and in the Tube billet into the tensile branch of the punching die; under the action of pressure, the tube billet is radially compressed, in the process of radial compression, the metal flows in the direction of the branch pipe and in the die To form a branch tube under stretching. The whole process is formed by the radial compression of the tube billet and the tensile process of the branch pipe.
Unlike the hydraulic bulging three-form, the gold of the hot-pressed three-pipe branch
The genus is compensated by the radial motion of the tube billet, so it is also known as the radial compensation process. The tonnage of equipment required for material forming is reduced due to the use of heating to suppress the three links.
The thermal pressure three-wire has wide adaptability to the material and is suitable for low carbon steel equal tee, alloy steel,
The material of rust steel, especially the three links with large diameter and thick pipe wall, usually adopts this forming process.
Divided by material:
Carbon steel, cast steel, alloy steel, stainless steel, copper, aluminum alloy, plastic, argon breaking leaching, PVC and so on.
Divided by production method:
Top system, pressing, forging, casting, etc.
By Manufacturing Standard Division: GB, electric standard, Standard, water mark, American Standard, German standard, Japanese standard, Russian standard, etc., as follows: GB/T12459-2005,GB/T13401-2005,ASME