The decisive role of the width of polyolefin adhesive tape

by:Yourijiu     2021-07-31

According to the buried environment, the conveyed medium, the use of the pipeline, and the size of the pipe diameter, the design unit of the project will determine the anti-corrosion layer level of the pipeline. According to the latest national standards, the anti-corrosion layer has The following three grades: ordinary grade (the thickness of the anti-corrosion layer is not less than 0.7mm), reinforced grade (the thickness of the anti-corrosion layer is not less than 1.0mm), and the special reinforced grade (the thickness of the anti-corrosion layer is not less than 1.4mm). After the grade of the anti-corrosion layer is determined, the thickness of the polyethylene anti-corrosion adhesive tape should be determined according to the grade of the anti-corrosion layer. The width is mainly determined by factors such as ease of construction and beautiful appearance. If the tape width is wide, such as DN100 steel pipe Wrapped with 150mm wide polyethylene anticorrosive adhesive tape, it is easy to produce wrinkles during the winding process, which will affect the appearance and the anticorrosion effect of the anticorrosive layer; if 50mm wide polyethylene anticorrosive adhesive tape is used, the problem of wrinkles is basically It will not appear, but it will affect the construction efficiency and progress. It can be seen that choosing the right tape width has a critical impact on the construction. In the current domestic large-scale planned and large-scale chemical projects under construction, the frequency of using polypropylene reinforced fiber anticorrosive tape is increasing. It is expected that within 2 years, the market share of polypropylene reinforced fiber anticorrosive tape will exceed that of polyethylene anticorrosive tape. , Epoxy coal tar pitch cold wound belt. In addition to the relatively low price of polypropylene reinforced fiber anticorrosive tape, it has a lot to do with the promotion of manufacturers.

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