Stainless steel tees are pipe fittings and pipe connecting pieces
. Used in the main pipe branch. Stainless steel tees are divided into equal diameters and different diameters. The ends of the equal diameter tees are the same size;
Stainless steel tee classification
The stainless steel tee hydraulic bulging process requires a large tonnage of equipment. At present, it is mainly used in the manufacture of stainless steel tees with a standard wall thickness of less than DN400. The suitable forming materials are low-carbon steel, low-alloy steel, and stainless steel with a relatively low tendency for cold work hardening, including some non-ferrous metal materials, such as copper, aluminum, and titanium.
According to the manufacturing standard, it can be divided into national standard, electric standard, water standard, American standard, German standard, Japanese standard, Russian standard, etc., as follows: GB / T12459, GB / T13401, ASME B16.9, SH3408, SH3409, HG / T21635, DL / T 695, SY / T 0510, DIN 2615.
Stainless steel tee principle
Stainless steel tee is a kind of pipe fittings used at the branch of the pipeline. For the manufacture of tees
using seamless pipes, the currently commonly used processes are hydraulic bulging and hot pressing. The hydraulic bulging of the stainless steel tee is a forming process of expanding the branch pipe through the axial compensation of the metal material. The process is to use a special hydraulic machine to inject liquid into the pipe blank with the same diameter as the tee, and squeeze and squeeze the pipe blank through the two horizontal side cylinders of the hydraulic machine. The pressure of the liquid increases with the volume of the tube blank. When the pressure required for the stainless steel tee branch tube to reach the required pressure, the metal material flows along the cavity of the mold under the dual effect of the liquid pressure in the side cylinder and the tube blank to expand the branch tube .