Rust on cast iron guardrail, if not treated for a long time, will become more and more serious, not only affect the aesthetics, but also have a great impact on product life! Shandong cast iron guardrail manufacturer reminds you that the main methods of rust removal and slag removal of cast iron guardrail are manual treatment, mechanical treatment, spray treatment, chemical treatment (pickling), electrochemical treatment and flame treatment.
1. Mechanical treatment of commonly used wind (electric) brushes, rust removal guns, polishing grinding wheels and wind (electric) shovels and other tools, with the help of high-frequency impact and friction of mechanical force, rust removal and removal of old oxide paint and other dirt.
2。 Manual treatment mainly uses tools such as abrasive cloth, scraper, hammer chisel, wire brush, waste grinding wheel and so on。 It relies on manual grinding, shoveling and brushing to remove the surface dirt of cast iron guardrail, such as rust, oxide scale, welding slag and dust。
3. Chemical treatment is to use acid solution of special formula to immerse and dissolve iron products. Chemical reaction is used to remove oxide scales, rust marks and oil stains, that is, so-called "pickling".
4. Jet treatment is to use mechanical centrifugation, compressed air, high-pressure water flow as the power to project abrasives, sand, steel balls onto the surface of cast iron guardrail, impact and abrasion to remove oxide scale, rust marks, old paint, sand and so on.
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