Topson Group Provides Technical Specifications for Custom Metal Fabrication and Stainless Steel Decorative Sheets.
Different treatment methods for different impurities in stainless steel plates
Stainless steel plate impurities and stains are attached to the surface of the stainless steel plate, which seems to be difficult to deal with. In fact, everyone is wrong. Here, I will share with you the different treatment methods of different impurities in the stainless steel plate.
1. Dust with impurities on the surface of stainless steel
The production is often carried out in dusty places, and the air often contains dust. A lot of dust, which constantly falls on the surface of the equipment. They can be removed with water or alkaline solutions. Adhesive grime, however, requires high-pressure water or steam for cleaning.
2. Floating iron powder with impurities on the surface of stainless steel
As the standard A380[3] points out, if the rust test solution It cannot be completely removed and this test method is not recommended for technical surfaces of equipment, ie direct contact surfaces used to produce human consumer products. A simpler test method is to expose it to water for 12-24 hours to check for rust spots. This test is insensitive and time-consuming. These are testing tests, not cleaning methods. If iron is found, it must be cleaned up by chemical and electrochemical methods described later.
3. Paint, chalk and marker pens with impurities on the stainless steel surface
The impact of these contaminants is related to oil and The effects of oils and fats are similar. Washing with a clean brush and clean water or an alkaline cleaner is recommended, but high pressure water or steam can also be used.
4. Flux with impurities on the surface of stainless steel
The welding process using flux includes manual welding, flux core arc Welding and submerged arc welding, these welding processes leave fine flux particles on the surface that cannot be removed by ordinary cleaning methods. This particle will be a source of crevice corrosion, and mechanical cleaning methods must be used to remove these residual flux.
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From the perspective of the industrial chain, stainless steel processing industry and stainless steel downstream products enterprises are two industries that are interdependent and develop in competition.
First of all, you have to choose the stainless steel you want to make old.
In the home appliance industry, the most used stainless steel is the inner drum of the automatic washing machine, the inner tank of the water heater, the inner and outer shells of the microwave oven, and the inner lining of the refrigerator, and ferritic stainless steel is mostly used.
In the production process of stainless steel processing manufacturers, there will be visible damage, defects and some substances that affect the surface, such as: dust, floating iron powder or embedded iron, hot tempering color and other oxide layers, rust spots, grinding burrs, welding arc marks , welding spatter, flux, welding defects, oil and grease, residual adhesive and paint, chalk and marker pens, etc.
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