In order to improve the service life of cold-drawn steel pipes, the surface of cold-drawn steel pipes will be processed when they are manufactured, which is also a step of production. The four most commonly used methods are cleaning, tool rust removal, pickling and shot peening rust removal. Cleaning is mainly to adhere to the surface of cold-drawn steel pipe grease, dust, lubricants and other substances, if the material can not be completed through cleaning, then pickling will be selected, which is divided into chemical and electrolytic two kinds, which have anti-corrosion effect on the pipeline.
If the pipe surface is rusted and cold-drawn steel pipe manufacturers use tools to remove rust and use wire brushes to clean and polish the surface treatment, if the pipe surface is attached to a particularly strong oxide skin, it may be possible to use tools to remove rust and can not clean, we need to find other methods.
The last way to solve the problem of surface quality of cold-drawn steel pipe is shot peening and rust removal. High-power motor drives the blade to rotate at high speed, so that abrasives such as steel sand, steel shot, iron wire and minerals can be sprayed and sprayed on the surface of steel pipe under centrifugal force, which can play the role of rust removal.
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