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Internal Welding and Nozzle Fabrication of HDPE Tanks

Date:18-03-2022
The HDPE storage tank is a corrosion-resistant atmospheric storage tank with an all-plastic structure processed by spiral extrusion winding technology. So what are we looking at today? That is the internal welding and nozzle making of the HDPE storage tank.
The internal welding of HDPE storage tanks is an automatic long-arm extrusion welding process, which is an important step in all production processes. The same kind of HDPE pellets are hot-melted at the internal welding place, which is integrated with the tank bottom and the storage tank. The basic concept is the same as the external welding, but the mechanical equipment is different. Let's take a closer look at the internal welding of HDPE storage tanks and the installation and production of flange nozzles.

Process characteristics of internal welding of HDPE storage tanks:
1. The technical strength of systematization and automation technology is high, and the quality of products is relatively stable.
2. HDPE storage tank has good integrity, strong corrosion resistance and water seepage resistance.
3. It can reduce burrs, and the interface is flat and unique.
4. Add light stabilizer to HDPE pellet feed to avoid embrittlement and increase the service life.

Installation and fabrication of flange nozzles in HDPE storage tanks
The installation of the flange orifice of the polypropylene HDPE storage tank is the last production process. The flange adopts an integral injection-molded flange. First, the jig saw is used to cut the specifications and models of the corresponding size on the storage tank, and then the imported portable extrusion molding is used for welding.