发明名称 APPARATUS FOR REMOVING DENT IN SHEET METAL AND METHOD THEREOF
摘要 An apparatus for removing a dent in finished sheet metal heats a steel panel by applying a high frequency induced current thereto and simultaneously cools a clear coat by spraying a coolant to a surface of the sheet metal and a cooling pipe, wherein the finished sheet metal is composed of at least the ferromagnetic steel panel and the non-ferromagnetic clear coat having different thermal expansion coefficient and thermal damage temperature.
申请公布号 US2008034829(A1) 申请公布日期 2008.02.14
申请号 US20070870701 申请日期 2007.10.11
申请人 CHOE BEON-SEOK;KIM HOON 发明人 CHOE BEON-SEOK;KIM HOON
分类号 B21D37/16;B23K20/02 主分类号 B21D37/16
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