The simple and simple process of spiral steel pipe bundles: the first step is to check the spiral steel pipe to make it suitable for the construction of the insulated steel pipe, and to comprehensively check the steel pipes for the premise; the second step is to remove the embroidery on the steel pipe and manipulate a certain Some special materials understand the rust of the steel pipe profile, so that the steel pipe is not corroded; the third step is to form the pipe, and the steel pipe after rust removal and anti-corrosion is placed in the polyethylene casing; the fourth step is the head repair, the center injection Polyurethane foam, so that it fills the empty space between the steel pipe and the polyethylene casing, so that it becomes one; the last step is the product inspection, the inspection of the finished spiral steel pipe, the sale of products of suitable specifications, not suitable The products are undergoing new renovations and improvements.

As long as the rust-proof and anti-corrosion steel pipe is placed in the polyethylene casing, the center is filled with polyurethane foam to fill the empty space between the steel pipe and the polyethylene casing, and the steel pipe, the casing and the insulation layer are finally formed into a stable group. As a result of the anti-corrosion insulation, the insulated steel pipe is formed. This type of anti-corrosion insulation method for insulated steel pipes can be crowded and buried in the open, all construction processes can be carried out on site, easy to construct and operate, and easily controlled by the construction staff, the process is relatively simple.