Features of stainless steel coil: beautiful surface, diverse uses; Good corrosion resistance; More durable than ordinary steel; High temperature oxidation resistance and high strength, so it can resist fire; Good plasticity, good welding performance. Because of this, it is very popular, and in the process of use, it often causes rust due to improper use, so how to solve it?

1. Chemical method: use pickling paste or spray to assist the re-passivation of the rusted part of the stainless steel coil to form a chromium oxide film to restore corrosion resistance. After pickling, in order to remove all contaminants and acid residues, it is very important to rinse properly with clean water. After all the processing is done, polish again using a polishing equipment and then seal with polishing wax. For those with slight rust spots, you can use a mixture of 1:1 gasoline and engine oil to wipe off the rust spots of the stainless steel coil with a clean cloth.

2. Mechanical method: sandblasting cleaning, cleaning with glass or ceramic particles, sandblasting, annihilation, brushing and polishing. Contamination caused by previously removed materials, especially foreign iron particles, can be a source of corrosion by mechanical wiping of previously removed materials, polished or obliterated materials. 

Therefore, mechanically cleaned surfaces should be properly cleaned under dry conditions.

The use of mechanical methods can only clean the surface of the stainless steel coil, but cannot change the corrosion resistance of the material itself. Therefore, it is recommended to re-polish with polishing equipment and seal with polishing wax after mechanical cleaning.

Yantai Zhongda Precision Stainless Steel Products Co., Ltd. is mainly engaged in: stainless steel coil, stainless steel plate, stainless steel skid plate processing, 400 series stainless steel, stainless steel plate frosted film, stainless steel slitting, Yantai stainless steel, stainless steel Kaiping, stainless steel hot rolled plate, 316 stainless steel, 201 stainless steel, 304 stainless steel, stainless steel processing, stainless steel materials, stainless steel pipes, bars, profiles, etc.; The operating steel types are: 201, 202, 321, 316L, 309S, 310S, 409, 430, etc., according to customer needs for leveling, rolling, slitting, shearing, frosting, filming, embossing and other processing.

If the stainless steel coil adheres to the surface of the workpiece during heating, the oxide scale thickness of the oil adhesion part is different from the thickness and composition of the oxide, and the size of other parts will be carburized. The carburized part of the metal under the oxide skin will be severely corroded by acid. The oil droplets ejected when the heavy oil burner burns have a great impact if they are attached to the workpiece. When the operator's fingerprint is attached to the workpiece, the fingerprint may also be affected.

Therefore, the operator should not directly touch the stainless steel coil parts with his hands, and do not stain the workpiece with new oil. Wear clean gloves to operate. If lubricating oil is attached to the surface of the workpiece during cold working, it is thoroughly degreased in three degreasers and solutions, then washed with warm water, and then heat treated.