1. Anti-corrosion plastic-coated steel pipe manufacturers select appropriate materials in accordance with relevant standards and requirements, and use scientific production technology for processing.
2. In the production process, it is necessary to conduct strict testing of raw materials to ensure that their quality meets the requirements. At the same time, quality control should be strengthened in the production process, and key process links should be monitored to ensure that the anti-corrosion plastic-coated steel pipes produced meet the quality standards.
3. The quality inspection of anti-corrosion plastic-coated steel pipe is an important means to ensure that its quality meets the requirements.
In quality inspection, the following aspects need to be paid attention to:
First, appearance quality inspection. The appearance of anti-corrosion plastic-coated steel pipe should be free of obvious defects, such as cracks, obvious scratches, etc. At the same time, the appearance color should be uniform and consistent, and there should be no color difference.
Second, dimensional inspection. The size of the anti-corrosion plastic-coated steel pipe should meet the requirements of the standard, including the dimensions of length, diameter, etc. Measurements can be made with a gage to ensure that their dimensions are accurate.
Third, physical property inspection. The physical properties of anti-corrosion plastic-coated steel pipes are inspected, mainly including tensile strength, bending performance, pressure resistance, etc. Through the corresponding test method, the strength and performance can be tested to ensure that it meets the requirements of the standard.
Fourth, corrosion resistance test. The corrosion resistance of anti-corrosion plastic-coated steel pipe is one of its important characteristics. The corrosion resistance of anti-corrosion coated steel pipes can be evaluated by using chemical reagents for corrosivity tests.
Fifth, adhesion test. The coating adhesion of anti-corrosion coated plastic steel pipe should meet the requirements. Methods such as tensile tests can be used to evaluate the adhesion of the coating to ensure that it can effectively adhere to the surface of the steel pipe for a long time.