Contact: Cheng Huiqiang
Address：No. 333, Jinxian Road, Jinjiaba, FENHU Town, Wujiang District, Suzhou City, Jiangsu Province
一分彩What are the key points for the correct use of polyethylene anticorrosive tape? -Polyethylene anticorrosive tape
1. The temperature when unwinding the tape must be above 5 ℃, and the construction of the anticorrosive layer should be performed above -5 ℃. When the ambient temperature is lower than 10 ° C, in order to ensure that the tape has good adhesive strength immediately, it is advisable to use a torch to heat the steel pipe and the adhesive layer of the baking tape.
2. For the weld, if necessary, it should be reinforced with a narrow strip of tape with a width of 30-50 mm. Cover the weld first and compact it with a hand or a wooden smooth tool.
一分彩3. Use appropriate mechanical or manual tools to spirally wrap the tape on the primed pipe according to the overlap requirements. The tape should maintain a certain tension to make the tape layers tightly connected. When winding the tape, the seam of the tape should be parallel, and the wrinkles must not be twisted. There should be more than 100 millimeters of overlap between the two ends of the tape. If necessary, apply primer or fully bake the end base film of the previous section of tape. After the surface is dry, overlap the beginning of the other section of tape.
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4. The use of machinery is a powerful measure to ensure the quality of tape winding. Hand-wound tape is difficult to achieve uniform surface quality and consistent tension. Polyethylene anticorrosive tape can only be used in special cases when mechanical construction cannot be performed. Wrap the tape by hand, but use narrower tape.
5. In the factory prefabricated wrapping, cold or hot wrapping can be used. It can be the rotation of the pipe or the winding equipment. The end of the pipe should be reserved for welding of 150-200 mm.
6. Prefabricated anti-corrosion pipes shall be subject to quality inspection in accordance with the requirements of this standard. After passing the inspection, the factory shall be provided with a certificate of delivery.
7. When using aluminum foil tape to prevent corrosion of overhead spanning pipes or household risers, electric spark detection tests are not required.
8. The anti-corrosion tapes used for mending, elbows and through walls should be as narrow as possible, and construction and testing shall be performed in accordance with the relevant provisions in this code.
一分彩9. For the overhaul of the anticorrosive layer, the rotatable winding equipment should be used for construction at the construction site, and the construction and inspection should be carried out in accordance with the relevant provisions in this code.
Contact: Cheng Huiqiang
|Contact : Li Cong|
|Address: No. 333, Jinxian Road, Jinjiaba, Wujiang District, Suzhou, Jiangsu|