Steel belt bellows are generally buried in the ground, this material will not be corroded, and it is also resistant to impact and pressure. It is easy to recover after deformation, so it is widely used. So what if it has these "advantages"?This starts with three aspects.
Analyze it from three aspects: structural design, product characteristics and performance.
1. Structural design
It is designed with a three-layer structure, with an inner layer of polyethylene resin and an anti-corrosion layer, a galvanized annular steel in the middle, and an outer layer of shell bridge impact-resistant pipe. The steel strip it uses is coiled into shape, and then connected with PE after the rolling is completed after grinding the burr, which has compressive resistance in terms of mechanics, for example: the steel strip tube is like the arc of the egg, and the external force is difficult to crush. The steel belt of the plastic steel winding pipe is shaped, has not been coiled, and is also upright on the PE when it is connected with PE, just like an inverted nail placed on the PE, which leads to its low pressure resistance, and when the pressure is too large, the steel belt may penetrate the inner wall and cause a pipe burst.
2. Pipe performance:
Good impact resistance: good adaptability to any foundation.
Good chemical resistance: the external anti-corrosion layer will not be polluted and corroded by anything.
Aging resistance: The outer wall is black, UV resistant, and has good aging resistance.
Good drainage circulation: large flow, low friction and fast speed;Self-cleaning without scaling, the flow rate is basically unchanged;In addition, the diameter is larger than that of other pipes.
Easy connection: socket connection, hot melt extrusion welding, electric hot melt tape connection, heat shrinkable tube (belt) connection, clamp connection or a combination of multiple connection methods can be used.
Light weight and transportation, easy construction: lighter weight and stronger performance than other plastic pipes and cement pipes.
Good wear resistance, low construction management, low maintenance costs, HDPE is a non-DU raw material, harmless to the land and other environments, and can be recycled, good stability of the pipeline system, and reliable ring stiffness.
3. Anti-corrosion:
The steel belt used should be coated with a layer of epoxy resin for anti-corrosion, and the steel belt can be well bonded with PE raw materials. However, the steel belt of the plastic steel spiral pipe has not undergone such treatment, which will make the pipe easy to layer and the steel belt is also easy to rust.