Contact: Cheng Huiqiang
Address：No. 333, Jinxian Road, Jinjiaba, FENHU Town, Wujiang District, Suzhou City, Jiangsu Province
一分彩Analysis of the cause of foaming of polypropylene anticorrosive tape (price of anticorrosive tape)
一分彩Analyze the cause of foaming of polypropylene anticorrosive tape. Polypropylene anticorrosive tape sometimes foams after completion. The cause of this phenomenon may be that the primer is unevenly coated during construction and the anticorrosive tape is not pulled when it is wound Tightness, insufficient tension, and damage caused by the stacking of anti-corrosion pipes were not covered by shading nets.
一分彩1. The quality of steel pipe surface pretreatment should reach the st3 level specified in GB / T8923-1988. After the rust removal is completed, the primer should be painted, and the surface of the steel pipe must be dry and dust-free. The primer should be stirred well in the container before use. The primer should be applied evenly, without defects such as missing coating, clot and sagging, and the thickness should be greater than or equal to 30um. After the primer is dry, wind the cold wrap (the time from the completion of the primer to the wrap is about For 3-5 minutes).
2. When the polypropylene anticorrosive tape is wound, it should be tightened, increase the tension, and remove the air between the tape and the pipe. The overlap length of the beginning and end of the tape should not be less than 1/4 of the pipe circumference and not less than 100mm. When winding, the tape must not be twisted or wrinkled, and the end of the tape should be pressed to prevent it from lifting.
3. The stacking layers of anti-corrosion pipes are based on the principle of not damaging the anti-corrosion layers. Different types of finished pipes should be stacked separately, and soft materials should be placed between the anti-corrosion pipe layers and the mats to avoid damage to the anti-corrosion layers. The stacked anti-corrosion pipes are covered with a sunshade net to avoid direct sunlight for a long time.
4. When the weather is hot or sunny, bubbles are often generated. Because the tape itself has a certain elasticity and self-repairing ability, these bubbles can disappear by themselves. This situation should not be defined as a quality issue. If air bubbles are generated, like wrinkles, repairs should be removed.
It should be noted that after the construction, the anti-corrosion pipe must take effective protection measures. In high temperature and direct sunlight areas, tarpaulins or shade nets should be used for cover. I hope the questions we have mentioned above can help you. If you have any questions, please contact us in time! Anticorrosive tape price
Anticorrosive tape price
Contact: Cheng Huiqiang
|Contact : Li Cong|
|Address: No. 333, Jinxian Road, Jinjiaba, Wujiang District, Suzhou, Jiangsu|