Tinplate Spreader FAQ Analysis Solutions

This paper mainly analyzes the problems of rust and physical and chemical index quality of the coating film in the process of tinplate coating and proposes solutions. Tinplate is exposed to the air for a long time, and the water vapor in the air is easy to form a dew point on the surface and edge of the cold-phase tinplate to form a primary battery, which accelerates the corrosion of its surface and edge. Especially in the spring with relatively heavy humidity in the south. After opening the package, the surface of the tinplate will accumulate dew points soon. The longer the time, the more likely the finished tinplate will be dewed. Influence. Treatment method: Try to shorten the time that the tinplate is exposed in the air. After opening the package, it is coated, and the finished product is packaged with moisture-proof packaging. If there is a dew point on the surface of the tinplate due to carelessness, it should be dried at a baking temperature not higher than 40°C to avoid the formation of the dew point. The primary battery reacts intensified at high temperature and forms white spots.