Since the anti-corrosion coating shows and demonstrates its protective performance on the protected and coated object with the anti-corrosion coating film finally applied on the surface of the coated object, the quality management of the coating can be said to revolve around the stubble. Management of coated film quality disks. The management of coating film quality is the central part of coating management, and it should be carried out from the beginning to the end of the coating project. The paint coating begins with the surface pretreatment of the structure to be painted, the quality inspection after the anti-corrosion layer section, technical standards and construction specifications are always the behavior guideline for the coating quality of the coating film. Generally speaking, the qualitative control of coating is divided into the following stages.
Before painting
(1) Inspection of coating properties;
(2) Evaluation of the surface state of the coated object before painting;
{3) Inspection of coating process and coating environment.
Implement the coating process
(1) Inspection of the pre-buried material on the surface of the coated object;
(2) Inspection of the quality of the pre-painted coating film;
(3) Control of coating process parameters and coating ring blocks;
(4) Inspection of wet film thickness. And the remedial methods and measures to be taken for the common defects and pathological characteristics of the coating film during the coating process
After painting
(1) Inspection of dry film thickness;
(2) Inspection of the appearance of the anti-corrosion layer;
(3) Inspection of anti-corrosion layer adhesion and interlayer adhesion;
(4) Integrity (pinhole) inspection of the anti-corrosion layer.
Quality control after painting
(l) Storage, stacking and transportation of painted products after painting.
(2) Repairing and recoating of new coating defects.
Combining the above various management links, it can be roughly divided into the management of surface pretreatment; the management of the process conditions of the coating environment and the coating process; the management of the thickness and quality of the coating film; the joints of residual film defects, etc. . These are the important contents of painting technology bamboo theory. In addition, there should be coating project progress management, cost management, etc., all of which are related to the economic benefits of anti-corrosion coating companies.
It can be said that from the beginning of the coating design to the acceptance of the coating project, the coating management has implemented the whole process from the beginning to the end, which is the key to the excellent quality of the anti-corrosion coating. Anti-corrosion layer construction of oil and gas pipelines, anti-corrosion construction of automobiles, large ships, and steel structure bridges, etc. However, there are still a lot of anti-corrosion coating management, if not standardized, lack of quality supervision and testing and the necessary anti-corrosion quality management
