In order to improve the corrosion resistance and decoration of stainless steel products, the surface of stainless steel needs to be polished. Manual, mechanical, chemical and electrochemical polishing are used. Grade: SS304,SS316 etc
Stainless steel has been widely used because of its high corrosion resistance and decoration, especially in medical appliances, food industry utensils, tableware, kitchen utensils and other aspects have been popularized and promoted. Stainless steel appliances should be corrosion resistant, bright and clean appearance, appliance surface should not be attached with toxic substances to human body. Because this is opposite the surface processing of production this kind of appliance puts forward a requirement, want the harmful material that clears surface thoroughly namely.
Stainless steel polishing materials are generally :" polishing wax, hemp wheel, nylon wheel, cloth wheel, wind wheel, thread cloth wheel "and so on.
Stainless steel has been widely used because of its high corrosion resistance and decoration, especially in medical appliances, food industry utensils, tableware, kitchen utensils and other aspects have been popularized and promoted. Stainless steel appliances should be corrosion resistant, bright and clean appearance, appliance surface should not be attached with toxic substances to human body. Because this is opposite the surface processing of production this kind of appliance puts forward a requirement, want the harmful material that clears surface thoroughly namely.
Stainless steel polishing materials are generally :" polishing wax, hemp wheel, nylon wheel, cloth wheel, wind wheel, thread cloth wheel "and so on.
Chemical degreasing → washing → pickling → washing → chemical polishing → washing → electric polishing → washing → passivation → washing → drying → inspection.
Chemical polishing :30%H2O2 150-220ml/L; H2SO4 about 5 ml/L; Stabilizer 10g/L; T, 50-70 ℃; t 5-10min;
Electrochemical polishing :85% H3PO4 600mL/L; 94%H2SO4 300ml / :L; Glycerol 30ml/L; Saccharin 2-4G/L; DA30-60A/ dm2; T, 50-70 ℃; t 5-8 min;
Passivation :CrO3 100-150g/L; H2SO4 1-5ml / L; Room temperature 10-20 ℃
Technique | Forged/Hot Rolled/Cold Drawn/Peeled |
Category | 1.Round bar |
3. Flat bar | |
4. Hexagon bar | |
5. Channel bar | |
6. Threaded bar | |
7. Angle bar | |
Diameter± | H9 tolerance can reach the industry standard |
Standard | GB, AISI/JIS, SUS, UNS, DIN 17440 17220(BS970 Part4) |
Material | Stainless steel: |
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