Product Introduction
Zirconium tees have excellent strength, hardness, low density, light weight, high temperature resistance, low temperature resistance, good machining performance, and excellent corrosion resistance.
Zirconium tees are pipe fittings and pipe connectors. Also called pipe fitting tee or tee fitting, tee joint is used where the main pipe branches.
Tee is a kind of chemical pipe fitting with three openings, namely one inlet and two outlets; or two inlets and one outlet. It has T shape and Y shape, with equal diameter pipe openings and reducing diameter pipe openings. It is used for The convergence of three identical or different pipelines. The main function of the tee is to change the direction of the fluid.
Classification
Divided by pipe diameter
The nozzle ends of equal diameter tees are all the same size;
The main pipe nozzle size of the reducing tee is the same, while the branch pipe nozzle size is smaller than the main pipe nozzle size.
Divided by process
1. Hydraulic bulging: The hydraulic bulging of the tee is a forming process that expands the branch pipe through axial compensation of the metal material. The process is to use a special hydraulic press to inject liquid into the tube blank with the same diameter as the tee, and squeeze the tube blank through the synchronous centering movement of the two horizontal side cylinders of the hydraulic press. The volume of the tube blank becomes smaller after being squeezed, and the inside of the tube blank becomes smaller. The pressure of the liquid increases as the volume of the tube becomes smaller. When the pressure required for the expansion of the tee branch is reached, the metal material flows along the inner cavity of the mold under the dual action of the liquid pressure in the side cylinder and the tube and expands the branch.
The hydraulic bulging process of the tee can be formed in one step, and the production efficiency is high; the wall thickness of the main pipe and shoulder of the tee has been increased.
Due to the large tonnage of equipment required for the hydraulic bulging process of seamless tees, it is mainly used in the manufacture of tees with standard wall thickness less than DN400 in China. Its suitable forming materials are low carbon steel, low alloy steel, stainless steel with relatively low cold work hardening tendency, including some non-ferrous metal materials, such as copper, aluminum, titanium, etc.
2. Hot press forming: Tee hot press forming is to flatten the tube blank that is larger than the tee diameter to about the size of the tee diameter, and make a hole in the stretched branch pipe; the tube blank is heated and placed in the forming mold , and a die that stretches the branch pipe is installed in the tube blank; the tube blank is radially compressed under the action of pressure. During the radial compression process, the metal flows in the direction of the branch pipe and forms a branch pipe under the stretching of the die. The whole process is formed through the radial compression of the tube blank and the stretching process of the branch tube parts. Different from the hydraulic bulging tee, the metal of the hot-pressed tee branch is compensated by the radial movement of the tube blank, so it is also called the radial compensation process.
Due to the use of heated and pressed tees, the tonnage of equipment required for material forming is reduced. Hot-pressed tees have wide adaptability to materials and are suitable for low carbon steel, alloy steel, and stainless steel materials; especially tees with large diameters and thick pipe walls usually use this forming process.
