What's the difference between inner ribbed plastic lined steel pipe and ordinary lining plastic pipe? What are the production processes of plastic lined steel pipes?
The inner pollution prevention measures are perfect: the traditional steel pipe adopts the connecting way of the traditional pipe fittings, and the rust of the joint thread will cause two pollution to the water quality. In the reinforcement bars embedded in plastic lined steel pipe with quick connector, the pipe joint of internal lining plastic pipe connection, and when in contact with fluid piping system without any metal material part and transmission, so can effectively prevent the two pollution on water quality.
The connection is reliable and convenient, the use of high pressure reinforcement bars embedded in plastic lined steel pipe with a clamping ring type quick connector connection, not in steel tapping, convenient installation, and the self-locking pipe joint and good sealing performance, can ensure the effective use of 2.0Mpa in the high working pressure.
The surface double layer anticorrosive ordinary steel plastic pipe outer layer only uses galvanization anticorrosion, and the zinc plating layer is destroyed seriously in the processing process. The inner reinforcement embedded plastic lining steel pipe adds paint baking outside the galvanized layer, which not only increases the aesthetic degree of the pipe, but also improves the overall corrosion resistance of the pipe material and helps to prolong the service life of the pipe.
The utility model can effectively prevent the contraction of the inner plastic pipe, and because the thermal expansion coefficient of the two layers of internal and external plastic materials is greatly different, the inner plastic pipe is easy to shrink in the heating state. The inner reinforced plastic embedded steel pipe is made of convex, annular or reticular patterns on the inner wall of the galvanized steel pipe outside the outer layer, so as to increase the friction between the inner and outer pipes, and reduce the constriction of the inner plastic tube as much as possible. This particular structure has been granted national patent.
Ordinary steel pipe with high strength galvanized steel pipe is the inner plastic tube wall and the outer layer with hot melt adhesive bonded together, this process objectively determine the combined strength of the two outer layers of materials is not high, with the aging glue layer, two layers of inner and outer materials are prone to peeling phenomenon. In the reinforcement bars embedded in plastic lined steel pipe is galvanized steel pipe into the inner layer of polypropylene plastic outer layer, by reducing treatment on galvanized steel pipe, galvanized steel pipe and plastic pipe between the formation of interference fit, steel tube reinforced plastic pipe embedded in this process leads to high bonding strength of composite pipe and two layers of material.
