3PE anticorrosive spiral steel pipe process and construction requirements

3PE steel pipe production process simple:
The first step is to inspect and repair the anticorrosive steel pipe so that it meets the premise of the production of Ganzhou 3PE steel pipe and integrates various preconditions to repair the steel pipe.
The second step is to remove the embroidering on the steel pipe, use certain special raw materials to clear the rust on the surface of the steel pipe, so that the steel pipe is not eroded;
The third step is to wear the tube, and the rust-removed and anti-corrosion steel tube is sheathed in the polyethylene tube.
The fourth step is to repair the head and inject the polyurethane foam in the middle so that it can fully fill the hollow space between the steel pipe and the polyethylene pipe to make it become one;
The fifth step is the overhaul of the finished products. The completed finished products of Quzhou 3PE steel pipe are subject to overhauling. The products that meet the specifications are sold, and the unqualified products are refitted and improved.
The specific construction requirements for corrosion protection of steel pipes with anti-corrosion coatings are as follows:
(1) Good corrosion resistance, including chemical, atmospheric, water, acid, alkali, salt, and other solvents.
(2) Having good resistance to media permeability: The excellent shielding effect of heavy anti-corrosion coating requires the coating to have as low a permeability of water and oxygen and other corrosion factors as possible after film formation.
(3) Has good construction performance: The coating reaches a proper thickness, the thicker the coating, the better the shielding effect, of course, there must be a good structural design requirements.
(4) Good adhesion and physico-mechanical properties: Adhesion to steel pipe substrates or other substrates is a prerequisite for obtaining high-quality heavy-duty coating coatings, especially wet film adhesion and low shrinkage. Rate, appropriate hardness, toughness, wear resistance, temperature resistance and so on.