Tee is also called pipe tee or tee pipe, tee joint and so on. Mainly used to change the direction of the fluid, used at the branch pipe of the main pipeline. It can be classified according to the size of the pipe. Generally made of carbon steel, cast steel, alloy steel, stainless steel, copper, aluminum alloy, plastic, argon leaching, pvc and other materials.
The three links are pipe fittings and pipe connectors. Also called three-way pipe fittings or three-way pipe fittings,
The three-way joint is used at the branch pipe of the main pipeline.
Tee is a kind of chemical pipe fitting with three openings, namely one inlet and two outlets; or two inlets and one outlet. There are T-shaped and Y-shaped, with equal diameter nozzles and reducing nozzles, which are used for Where three identical or different pipelines converge. The main function of the tee is to change the direction of the fluid.
Tee hot press forming is to flatten the tube blank larger than the diameter of the tee to the size of the diameter of the tee.
The hydraulic bulging of the tee is a forming process in which the branch pipe is expanded by the 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 to squeeze the tube blank through the synchronous centering movement of the two horizontal side cylinders of the hydraulic press. The pressure of the liquid increases as the volume of the tube becomes smaller. When the pressure required for the expansion of the three-way branch tube is reached, the metal material flows along the inner cavity of the mold under the dual action of the side cylinder and the liquid pressure in the tube blank to expand the branch tube.
The hydraulic bulging process of the tee can be formed at one time, and the production efficiency is higher; the wall thickness of the main pipe and the shoulder of the tee are increased.
Due to the large tonnage of equipment required for the hydraulic bulging process of seamless tees, it is mainly used for the manufacture of standard wall thickness tees less than DN400 in China. The applicable forming materials are low-carbon steel, low-alloy steel, and stainless steel with a relatively low tendency of cold work hardening, including some non-ferrous metal materials, such as copper, aluminum, and titanium.
Open a hole in the stretched branch tube; the tube blank is heated, put into the forming die, and the punching die for the stretched branch tube is installed in the tube blank; the tube blank is radially compressed under the action of the pressure, and the tube blank is compressed in the radial direction. During the process, the metal flows in the direction of the branch pipe and forms the branch pipe under the stretching of the die. The whole process is formed by the radial compression of the tube blank and the stretching process of the branch tube. 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.
Since the tee is pressed after heating, the tonnage of equipment required for material forming is reduced. Hot-pressed tee has a wide adaptability to materials, and is suitable for low-carbon steel, alloy steel, and stainless steel; especially for tee with large diameter and thicker tube wall, this forming process is usually used.
