Anti-corrosive powder paint for steel support frame

Abstract

The invention relates to an anticorrosive powder coating used for steel supporting frames, belonging to the technical field of powder coating; the coating is mainly characterized in that: according to the mass percentage, the anticorrosive powder coating comprises 35-58 percent of thermosetting resin, 4.5-35 percent of curing agent, 20-35 percent of pigment and filling material and 2-5 percent of auxiliary agent. The anticorrosive powder coating can avoid the environmental pollution and the damage on health of people caused by the use of solvent based coating, also can save the limited resource organic solvent, improves the effective utilization ratio of the coating, improves the labor productivity, can achieve the required coating thickness and the anticorrosive performance by one-time coating, saves the labor production cost, has good safety performance during the production and avoids the unsafe factors such as fire, and the like caused by the use of the organic solvent.

Description

technical field [0001] The invention relates to an anticorrosion powder coating for a steel support frame, which belongs to the technical field of powder coatings. Background technique [0002] With the improvement of mine automation production technology and the strict requirements of safety production, a large number of support frames are used in the support of mine tunnels. At present, such support frames generally use logs. With the reduction of forest resources, a large number of logs are used to support the tunnel, which brings certain difficulties. In various mining industries, a large number of steel support frames have been used to support the tunnels, gradually replacing the wood used in large quantities in the past, to ensure the safety of the mine tunnels and normal mining work. Due to the complex natural environment of the mine, the composition of various gases, liquids and solid dust volatilized in the mining area is very complex, and the corrosion of the stee...

AI Technical Summary

Problems solved by technology

Furthermore, if you use a drying-type solvent-based coating, although the coating performance is better than that of the self-drying type, it cannot avoid the problem of multiple coating and drying, and it also needs to go through coating-baking. —coating—baking—painting—baking process, for a coating film thickness of 70-80 microns, that is, three times of coating and three times of baking are required to achieve the required coating thickness

Because of the many times of painting and baking, the production cycle is long and the labor production efficiency is not high

If solvent-based coatings are used, a large amount of organic solvents (almost 50% are volatile organic solvents) will be volatilized during the production process, which will not only waste a large amount of organic solvents, but also cause air pollution and unsafe factors that are likely to cause fires. cause certain harm to human health