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Pipe Billet Cleaning
- Dec 19, 2018 -

Sometimes, due to continuous casting, pouring or forging and rolling process accidents, on the surface of the tube billet there are knots scar or pits, grooves, individual blanks still exist cracks. 

In order to improve the quality of finished steel pipe, reduce waste and subsequent treatment process, it is necessary to clean the surface of the tube billet. There is a billet pickling conditions of the production plant, can be in the billet pickling to remove the surface iron oxide skin, its defective parts to clean up, there is no pickling conditions of the production plant, can be used surface shot peening (sand) to remove the surface of the billet oxide iron, and then the defective parts of the cleaning , and some manufacturers clean up the defective parts of the billet directly with the naked eye after inspection. 

The main cleaning methods are flame and sand grinding, the crack sensitivity of steel, such as high alloy steel generally used in the way of sand grinding cleaning, carbon steel and other crack sensitivity is not strong steel can be used flame cleaning. Some special steels, such as stainless steel, also need to be cleaned in a surface pickpocket way.