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How to see the quality of anticorrosive tape

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How to see the quality of anticorrosive tape

Release date:2017-08-28 Author: Click:

一分彩How to see the quality of anticorrosive tape


As an oil pipeline construction unit, polyethylene anticorrosive tape is often purchased. How to judge the quality of the anticorrosive layer of polyethylene anticorrosive tape? With the continuous demand for polyethylene anticorrosive tapes, some manufacturers have produced some unqualified polyethylene anticorrosive tapes for the benefit of the moment and sold them to consumers. How can consumers avoid these unqualified products when purchasing? What about polyethylene anticorrosive tape? What aspects should be used to judge the quality of the anticorrosive layer of polyethylene anticorrosion tape for Jining Xunda pipeline anticorrosion?

一分彩1. As the steel pipe absorbs heat, and the black of the polyethylene anticorrosive tape is more heat-absorbing, it is forbidden to expose the pipe after corrosion, and it should be stored according to requirements. If the normal temperature is 20 ° C, the temperature of the steel pipe must be above 30 ° C, which is contrary to standards and construction requirements.

2. When the weather is hot or sunny, the wound polyethylene anticorrosive tape often has air bubbles. Because the tape itself has a certain degree of elasticity and its ability to repair itself, these bubbles can disappear on their own, so this situation should not be considered a quality issue. If permanent bubbles are generated, like wrinkles, they should be removed.

3, if the construction air humidity, temperature difference and other columns cause water vapor on the surface of the steel pipe, after winding the polyethylene anti-corrosion tape, and because of the better sealing of the tape, the water vapor can not penetrate the anti-corrosion layer for a long time, Cause air bubbles. This problem can be avoided as long as attention is paid during construction.

一分彩4. When using, check to see if the coating of the primer is sufficiently uniform and continuous, and there are no defects such as missing coating, flow marks, etc. And to wrap the adhesive tape, wait for the primer to dry enough.

5. The thickness of the polyethylene anticorrosive tape can be detected by using a non-destructive thickness measuring instrument. Random sampling is used to select multiple pipes to randomly check two or three places, and each point is uniformly distributed around the circumference to measure four points. If it passes, it will be spot-checked. If one of the two fails, it will be judged as failed.

6. Use an EDM leak detector to perform continuous leakage inspection on the anti-corrosion tube one by one, and pass the test without leakage.

7. Check the peel strength of the polyethylene anti-corrosion tape. Use a knife to cut the anti-corrosion coating with a width of 10 mm and a length of more than 100 mm along the circumference of the pipe. Pry up one end, clamp this end, and use a spring balance and pull direction to form a 90-degree angle with the tube wall, and the opening rate is not greater than 300 mm / min.

When visually inspecting the appearance of polyethylene anticorrosive tape, the mouth and wounds should be inspected one by one, and the surface of the anticorrosion layer should be flat, uniformly overlapped, without wrinkles, bubbles, and damage.

Suzhou Qianggu Pipeline Anticorrosive Material Co., Ltd. is located in Fenhu Economic Development Zone, Wujiang District, Suzhou City, Jiangsu Province. It is a comprehensive anticorrosive and waterproof material manufacturing industry with complete anticorrosion products, advanced equipment and stable quality. Anticorrosive products are:

Polyethylene pipe anticorrosive tape, polyethylene modified tape CTB-Y, polypropylene anticorrosive tape CTB-B, aluminum foil anticorrosive adhesive tape, radiation crosslinked polyethylene anticorrosive heat shrinkable sleeve, heat shrinkable tape, heat shrinkable winding tape, heat shrink Waterproof cap, viscoelastic anticorrosive tape, viscoelastic anticorrosive paste and many other anticorrosive materials.


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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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