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The document discusses pinhole and crack defects that occur on the surface of cold heading steel billets during continuous casting. Through experiments, it was found that these defects are caused by nitrogen and oxygen contents, electromagnetic stirring conditions, protective slag composition, and casting temperatures. An optimization process is proposed to reduce defects by controlling these factors, such as lowering the sum of oxygen and nitrogen contents and using electromagnetic stirring to remove inclu

Author

santosh0301

Language

EN