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.