1. Use ordinary carbon steel electrostatic spraying polyester resin powder coating.
The corrosion resistance is completely comparable to stainless steel. The powder coating has the characteristics of toughness, durability, good decoration, excellent outdoor weather resistance and heat resistance, and mechanical processing manufacturers have excellent corrosion resistance and chalking resistance, excellent gloss and color light, electrostatic powder The coating is completely suitable for the anti-corrosion of the dryer shell.
2. Use stainless steel cold-rolled plate.
The upper cover plate of the flash dryer is mostly cold-rolled stainless steel plate, so the cost is very high. Why use stainless steel instead of ordinary carbon steel, just because the equipment will be exposed to various corrosive substances and gases in the working state, and the corrosion resistance of stainless steel is very superior, so it is made of stainless steel cold-rolled sheet.
3. Electrostatic powder spraying
The traditional paint used in the manufacture of flash dryers is liquid and contains a large amount of organic solvents such as esters, ketones and hydrocarbons, which brings a series of troubles to production, storage and construction, and is flammable, explosive and unsafe. It is toxic to a certain extent, evaporates into the atmosphere and seriously pollutes the environment. Therefore, domestic and foreign coating experts are committed to developing new coatings that do not use solutions or do not use solutions. One of this new coating is powder coating.
4. Phosphating-passivation process
In the manufacture of flash dryers, 70% of the parts are carbon steel structures. The turnaround time between processes is long, so a large amount of rust is generated on the surface of the work section, and more manual rust removal is required before painting. Phosphating-passivation process, LED display is through electrical and electrochemical reaction, after one-time treatment, can make the surface of steel workpiece covered with rust to show the original color of metal, and at the same time, a dense layer of anti-corrosion is formed on the metal surface. Rust film. It can be placed for ten days in humid air without rusting. The operation method is simple, can improve the working environment, reduce labor intensity, and save manpower and material resources. The phosphating-passivation treatment liquid contains emulsifiers, molybdates, soluble phosphates and various acids. This method is not only used for the above models, but also for other similar structures and frames.
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