发明名称 SAETT ATT FRAMSTAELLA EN TUNN KOPPARPLAOT MED STROEMNINGSKANALER
摘要 A method of manufacturing a thin plate or band from copper or a copper alloy is disclosed, the plate or band having flow conduits parallel to its plane, in which a thicker copper plate billet, which also has flow conduits parallel to its plane and the total wall thickness of which, as measured in a direction perpendicular to the plane of the plate, is equal to the thickness of the plate on both sides of the flow conduit, is cold worked to its final material thickness, whereafter the flow conduit flattened during the rolling is opened by means of pressure produced inside it.
申请公布号 FI794087(A) 申请公布日期 1981.06.29
申请号 FI19790004087 申请日期 1979.12.28
申请人 OUTOKUMPU OY 发明人 KOSONEN AHTI;PALMU MAURI
分类号 B21D53/04;F28F3/14;(IPC1-7):B21B/ 主分类号 B21D53/04
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