Stainless steel tee is a kind of pipe fitting used at the branch of pipeline. For the tee made of seamless steel pipe, there are two common processes: hydraulic bulging and hot pressing.
Hydraulic bulging of stainless steel tee is to expand the forming process of branch pipe through axial compensation of metal materials. The process comprises the following steps: injecting liquid into the tube blank with the same diameter as the tee joint with a special hydraulic press, and extruding the tube blank through the synchronous centering movement of two horizontal side cylinders of the hydraulic press, so that the volume of the tube blank becomes smaller after extrusion, and the pressure of the liquid in the tube blank increases with the decrease of the volume of the tube blank;
When the pressure required for the expansion of the stainless steel tee branch pipe is reached, the metal material flows along the inner cavity of the die under the dual effects of the liquid pressure in the side cylinder and the tube blank, so that the branch pipe expands.
Extended data:
Pipeline mixers are generally composed of pipelines, nozzles, vortex chambers, perforated plates or special-shaped plates to promote mixing. Generally, three pipes are used together as a unit (the number of sections can also be increased according to the performance of mixed media). There are three kinds of mixing methods, namely, nozzle type, vortex type, perforated plate and special-shaped plate.
For the common static spiral blade mixer, it is developed from perforated plate mixer and special-shaped plate mixer, and each mixer has a fixed spiral blade with a twist of180, which is divided into left-handed and right-handed ones. The spiral blades in two adjacent parts rotate in opposite directions and are staggered by 90 degrees.
In order to facilitate the installation of spiral blades, the cylinder is made into two semicircles, the two ends are connected by flanges, and the gap between the cylinders is bonded by epoxy resin to ensure its sealing requirements. The spiral blades in the pipeline are fixed, through which the fluid changes direction and produces turbulence, thus improving the mixing efficiency. This static mixer does not need external energy except decompression.
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