发明名称 EVALUATION METHOD OF SURFACE RUST OF ALMINUM ALLOY
摘要 PROBLEM TO BE SOLVED: To accurately evaluate an appearance of a surface of an alminum alloy. SOLUTION: After an advance direction dimension l1 of longest surface rust 2 in the advance direction in the surface rust 2 generated in a setting range P on the treated surface of the alminum alloy 1 and width direction dimensions w1, w2, w3 perpendicular to the advance direction in all the surface rust 2 are measured, a sum W of the width direction dimensions w1, w2, w3 of all the surface rust 2 and the advance direction dimension l1 of the longest surface rust 2 in the advance direction are multiplied, an appearance surface rust index N is calculated, and the state of the surface rust 2 in the setting range P is evaluated, based on the appearance surface rust index N. COPYRIGHT: (C)2005,JPO&NCIPI
申请公布号 JP2004301644(A) 申请公布日期 2004.10.28
申请号 JP20030094604 申请日期 2003.03.31
申请人 FUJI HEAVY IND LTD 发明人 KAWAI KOSUKE
分类号 G01N21/88;G01N33/20;(IPC1-7):G01N33/20 主分类号 G01N21/88
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