Several methods of surface treatment of laboratory stainless steel reactor

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Laboratory stainless steel reactors are widely used in chemical, food, coatings, hot melt adhesives, silica gel, paints, pharmaceuticals, petrochemical production reactions, pressure vessels for sulfonation, chlorination, nitration and other processes, stainless steel reactors have heating Fast, high temperature resistance, corrosion resistance, hygiene, no environmental pollution, beautiful appearance and so on. The material and material contact parts of the laboratory stainless steel reactor are made of high-quality stainless steel such as 304 or 316L, 321, which meets the GMP standard.

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During the processing of stainless steel, black oxide skin is produced after coiling, edge binding, welding or artificial surface heating. This hard gray-black scale is mainly composed of two kinds of EO4, NiCr2O4 and NiF. How to surface treat the stainless steel reactor to remove this substance? Here are several surface treatment methods for stainless steel reactors:
1. Surface coloring treatment: The coloring of stainless steel autoclave not only endows stainless steel products with various colors, increases the variety of products, but also improves the wear resistance and corrosion resistance of products.
2. Mirror bright treatment method of stainless steel surface in the laboratory: according to the complexity of stainless steel autoclave products and user requirements, methods such as mechanical polishing, chemical polishing, and electrochemical polishing can be used to achieve mirror gloss.
3. Surface whitening treatment: During the processing of stainless steel, black oxide skin is produced after coiling, edge binding, welding or artificial surface heating. However, this method is costly and corrosive, so it is gradually eliminated.
4. The method of spraying glass beads to remove the black scale on the surface of the stainless steel high-pressure reactor is also very applicable today.

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