Original document(15 pages) Authorized document(15 pages) 中文版
    A metallic coating layer is removed at least partly from scrap metal pieces having a core and the coating layer on the core. The coating layer has a lower melting temperature than the core. The scrap metal pieces are agitated in a container with abrading elements so as to cause multiple collisions, whereby the coating layer is at least partly removed. During the agitating the container temperature is a temperature T in the range Ts(coat)<T<TL(core) wherein Ts(coat) is the solidus temperature of the coating layer and TL(core) is the liquidus temperature of the core. The agitation may be by rotationally tumbling or shaking the scrap metal pieces and the abrading elements.
Application Number
98812424 Application Date
Title 名称 Method of removing metallic coating layer from scrap metal pieces
Publication Number
1282287 Publication Date
Approval Pub. Date 2003.11.05 Granted Pub. Date 2003.11.05
International Classification 分类号 B24B31/00;C22B1/00;C22B7/00;C22B21/00
Applicant(s) Name
Kerres Aluminium Walzprodukte GmbH
Address 地址
Inventor(s) Name 发明人 A.J. Wittebrood
Attorney & Agent 代理人 long chuangong

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