Shawcross, James Timothy,Lewis, David Richard,Turner, Andrew Derek
申请号：
AU2010231092
公开号：
AU2010231092B2
申请日:
2010.03.29
申请国别(地区):
AU
年份:
2016
代理人:
摘要：
Metal objects are treated by anodising (P, SE) the metal object in contact with an acidic solution, and then subjecting the anodised metal object to a reversed voltage (VR). The anodising is performed in two stages, firstly to passivate (P) with the formation of a surface layer, and secondly to form pits in this surface layer (SE). The second stage (SE) of anodising is performed at a lower voltage than the first stage (P). After the reversed voltage step (VR) the metal object is then contacted with a biocidal metal-containing solution. Biocidal metal is absorbed into the surface of the metal object, resulting in improved biocidal properties. The lower voltage of the second stage anodising (SE) results in reduced processing time.
