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公开(公告)号:KR1019890003349B1
公开(公告)日:1989-09-18
申请号:KR1019850003167
申请日:1985-05-09
Applicant: 한국과학기술연구원
IPC: C25D11/04
Abstract: The method for forming a silver-white coloured oxide layer on the surface of Al or Al alloy material comprises; anodizing in the electrolyte containing 2-2.6 wt.% oxalic acid, 0.1-0.2 wt.% phosphoric acid and 0.07-0.1 wt.% sulfuric acid, and using 30-70 voltage, 0.5-5 A/dm2, 20-45 deg.C; cleaning the oxide layer in the nitric acid; and absorbing a sensitizer into the cleaned oxide layer. The oxide-layered Al or Al alloy is used for photogravure for printing.
Abstract translation: 在Al或Al合金材料的表面上形成银白色氧化物层的方法包括: 在含有2-2.6重量%草酸,0.1-0.2重量%磷酸和0.07-0.1重量%硫酸的电解质中阳极氧化,并使用30-70电压,0.5-5A / dm 2,20-45度 。C; 清洗硝酸中的氧化物层; 并将敏化剂吸收到清洁的氧化物层中。 氧化物层状的Al或Al合金用于照相凹版印刷。
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