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The quality inspection work of polypropylene anticorrosive tape should meet the standards

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The quality inspection work of polypropylene anticorrosive tape should meet the standards

Release date:2019-07-11 Author: Click:

一分彩Because polypropylene anticorrosive tape has the advantages of simple construction, good sealing effect and long service life, it has become an ideal product for pipeline anticorrosion. When using polypropylene anticorrosive tape, it is actually necessary to perform quality inspection on the tape because Quality inspection can easily know the quality of polypropylene anticorrosive tape, so that when you use it, you will be more at ease. Because polypropylene anticorrosive tape has the advantages of easy construction, good sealing effect and long service life, it has become The ideal product for pipeline anticorrosion. When using polypropylene anticorrosive tape, it is actually necessary to perform quality inspection on the tape, because through regular quality inspection, the quality of polypropylene anticorrosive tape can be easily known. Will be more at ease. Appearance:

The appearance of polypropylene anticorrosive tape determines the quality of winding. Therefore, it is required that the surface should be flat, uniformly overlapped, no wrinkles, no protrusions, and no rupture points are allowed. The above-mentioned defects can be avoided as long as the tricks are suitable and carefully operated. However, air bubbles sometimes occur during the winding process, which often occurs when the weather is hot and the sun is winding the tape. Because the tape itself has some elasticity and self-repairing ability, these bubbles can disappear by themselves, and this kind of bubbles may not be a quality problem; if bubbles are generated, like wrinkles, repair should be eliminated.

一分彩Second, thickness:

一分彩The thickness index of polypropylene anticorrosive tape has a great effect on the quality of anticorrosion, especially the increase of the thickness of the adhesive layer can enhance the anticorrosive ability. When the tape is determined and the structure is determined, its thickness is determined. Therefore, the thickness of the polypropylene anticorrosive tape is determined in advance, and the total thickness can be determined. However, in order to prevent insufficient thickness caused by the use of different batches of tape, the inspector can use a thickness gauge to measure the pipeline after construction, and it is also convenient to determine the EDM leak detection voltage.

3. Adhesion:

一分彩The adhesion of polypropylene anti-corrosion tape refers to the adhesion of the anti-corrosion layer to the steel pipe. It directly relates to the quality of the anti-corrosion layer. Its size directly affects the water permeability. Therefore, it should ensure sufficient adhesion. According to the DIN30670 standard, use a knife to cut a 10mm wide belt in the ring direction, and then slowly open it at a 90 ° angle with the wall of the pipe using a spring scale. cm, this test should be carried out after winding the polypropylene anti-corrosion tape for 2 hours, and 3 anti-corrosion pipelines should be tested per kilometer. Three sets of data were measured for each batch of tape. (For specific related content, please refer to the relevant content of "Mastering these points to help them properly use wound polypropylene anticorrosive tape")


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Suzhou Qiangjiang Pipeline Anticorrosive Material Co., Ltd.

Contact: Cheng Huiqiang

Contact : Li Cong
Telephone:0512-63982510 Mobile phone:13962536717

Mobile phone:13806256210

Fax:0512-63982520
Address: No. 333, Jinxian Road, Jinjiaba, Wujiang District, Suzhou, Jiangsu
Website:www.diendanthanhly.net

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