How to do surface treatment of iron products well?

In order to ensure that the decorative spray coating has a good bond with the surface of the wrought iron product, it must be applied in the spray coating.
Before, the oxide skin, welding slag, rust marks, grease, dirt, and moisture on the surface of the wrought iron products were done as much as possible
It can be removed, otherwise it is easy to cause blistering, cracking, delamination and peeling of the spray coating. So-called processing
It refers to the use of machinery or chemical, electrochemical and other process methods to eliminate the surface defects of iron products before spraying.
Trapped.
1. The main methods for removing rust and oxidized skin welding slag include manual treatment, mechanical treatment, spray treatment, and chemical treatment.
Methods of scientific treatment (pickling), electrochemical treatment and flame treatment.
Handicraft processing mainly uses emery cloth, scraper, hammer chisel, steel wire brush, waste grinding wheel and other tools.
Grinding, shoveling, and sweeping to remove rust, oxide skin, welding slag, dust and other surface contaminants.
The most commonly used mechanical treatments are wind (electric) movable brushes, rust removal guns, polishing wheels and wind (electric) shovel, etc.
The tool uses high-frequency impact and friction with the help of mechanical force to remove rust and dirt such as oxidized skin and old paint.
The spray treatment is to use mechanical centrifugation, compressed air, high-pressure water flow, etc. as the driving force to remove abrasives and sand
The stone and steel shots are projected onto the surface of the wrought iron product, impacting and rubbing away the oxide skin, rust marks, old paint and molding sand
Wait .
Chemical treatment is the use of a special acid solution to soak and dissolve iron products, through chemical reactions
To remove oxidized skin, rust marks, and oil stains, which is so-called “pickling”.


Post time: Oct-21-2021