Contact: Cheng Huiqiang
Address：No. 333, Jinxian Road, Jinjiaba, FENHU Town, Wujiang District, Suzhou City, Jiangsu Province
Factors affecting the life of polypropylene anticorrosive tape
Polypropylene anticorrosive adhesive tape has a long service life and good economic benefits, but very few users report to us: some of the service life is short, so what are the factors that affect the service life. Polypropylene anticorrosive tape
一分彩I. Performance of anticorrosive tape
一分彩Each anticorrosive material has a certain scope of application. Therefore, it is necessary to comprehensively consider the operating conditions of the pipeline, soil conditions, construction environment, process requirements, and economic rationality, and select a suitable anticorrosive layer material. The basic requirements are as follows:
1. Good electrical insulation.
一分彩2, good resistance to cathode peeling strength.
3, sufficient mechanical strength and a certain impact strength.
一分彩4. Good bending resistance and abrasion resistance.
一分彩5. Needle penetration meets requirements, and has good adhesion to pipes.
6. Good chemical stability, good resistance to atmospheric aging, and sufficient heat and cold resistance.
一分彩7. Low water absorption and good antimicrobial performance.
Second, the quality of pipeline surface treatment
一分彩The quality of the surface treatment is directly related to the adhesion of the polypropylene anticorrosive adhesive tape to the steel pipe. If the treatment is not good, it will easily cause blistering, lifting, and rust back. The surface treatment must meet the specified requirements and rust removal level standards, and at the same time have a certain roughness. The roughness and rough shape should be determined according to the thickness of the anticorrosive layer. If the roughness is too small, the quality of the interface bonding will be affected, and if it is too large, "peak rust" will occur. Roughness and its rough shape are related to the type of abrasive, particle size, formulation and rust removal process used.
Ⅲ 、 Construction method
一分彩Three points of materials, seven points of construction. The quality of the construction directly affects the anticorrosive effect of the anticorrosive layer. For the construction of polypropylene anticorrosive tape, a special winding machine is recommended. Depending on the construction environment, manual winding machines or electric winding machines can be selected. The winding requirements of the tape are: to ensure a certain winding tension, tension and flattening.
一分彩IV. Handling and stacking of anti-corrosion finished products
防 The anti-corrosion layer of pipelines after anti-corrosion is very vulnerable to damage during handling and stacking. Therefore, it should be gently lifted and handled during transportation without violent impact; it should be tied with soft slings and ropes when being lifted; cushions should be placed at the bottom and between layers during stacking, and the number of layers should be stacked to ensure that the anti-corrosion layer will not be damaged. Thinning and non-compressive deformation are standard. Surface treatment should be performed on the damaged part in time, and then the injury should be repaired and inspected with an EDM leak detector until it is qualified.
聚丙烯 The polypropylene anticorrosive adhesive tape is also extremely vulnerable to damage during the construction process. During construction, pipelines must be transported, stacked, checked, and hoisted, and buried pipelines must be ditched and backfilled. Failure to pay attention to the above steps will cause damage to the anticorrosive layer. In these links, it is easy to neglect to backfill the damaged anticorrosive layer. Whether it is manual or mechanical backfill, if the soil or stones are too large during the backfilling, the outer anticorrosive layer will be damaged. Moreover, this kind of damage is not easy to be found. Easy to leave hidden dangers of corrosion.
After ensuring that the above aspects are done well, the effective life of the anticorrosion of polypropylene anticorrosive tape can reach more than 30 years under a reasonable construction environment.
Suzhou Qianggu Pipe Anticorrosive Material Co., Ltd. is a manufacturer of anticorrosive tape
Contact: Cheng Huiqiang
|Contact : Li Cong|
|Address: No. 333, Jinxian Road, Jinjiaba, Wujiang District, Suzhou, Jiangsu|