| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fin material having a structure in which a lubricating layer is formed on an outer surface, the lubricating layer hardly transferred to a molding die in spite of press working. <P>SOLUTION: In the aluminum fin material for a heat exchanger, the lubricating layer 15 made from a water-soluble resin, wherein its molecular weight is 5,000 to 200,000 and the penetration is 10 or less, is formed on the outer surface of a fin material body 13 made from aluminum or an aluminum alloy. The lubricating layer 15 is preferably made from water-soluble polyether. <P>COPYRIGHT: (C)2013,JPO&INPIT |
