The main methods for rust removal and slag removal of iron guardrail are handicraft treatment, mechanical treatment, spray treatment, chemical treatment (pickling), electrochemical treatment and flame treatment.
1. Mechanical treatment of the most commonly used wind (electric) brushes, rust removal guns, polishing grinding wheels and wind (electric) shovels and other tools, with the help of mechanical high-frequency impact and friction effect of rust removal and removal of old oxide paint and other dirt.
2. Handicraft treatment mainly uses tools such as abrasive cloth, scraper, hammer chisel, wire brush, waste grinding wheel, etc. It relies on handicraft grinding, shoveling and brushing to remove rust, oxide scale, welding slag, dust and other surface dirt of iron fence.
3。 Chemical treatment is to use acid solution of special formula to soak and dissolve iron products。 Chemical reaction is used to remove oxide scales, rust marks and oil stains, that is, so-called "pickling"。
4. Ejection treatment uses mechanical centrifugation, compressed air, high-pressure water flow as power to eject abrasives, gravel and steel balls onto the surface of iron fence, impact and abrasion to remove oxide scales, rust marks, old paint, moulding sand, etc.
The above information is our Shandong cast iron guardrail collation and release hope to help you all on our website is: http://www.kpp647.com!