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公开(公告)号：KR1020100113230A
公开(公告)日：2010-10-21
申请号：KR1020090031679
申请日：2009-04-13
Applicant: 한국산업기술대학교산학협력단
CPC classification number: C25D11/30 , C25D5/48 , C25D11/024 , C25D21/10
Abstract: PURPOSE: A method and a system for fabricating oxide coatings on magnesium alloys are provided to ensure the high corrosion resistance since environment-friendly electrolyte and electrochemical plasma oxidation coating process is applied and ceramic oxide coating is formed on the surface of magnesium alloy. CONSTITUTION: A method for fabricating oxide coatings on magnesium alloys is as follows. The foreign material and the corroded oxide layer of the surface of magnesium alloy are removed. After the magnesium alloy is dipped in alkali electrolyte(30), AC(Alternating Current) pulse is applied and a magnesium oxide film is formed on the surface of the magnesium alloy. The magnesium alloy with the magnesium oxide film is washed and dried by the distilled water.
Abstract translation: 目的：提供一种用于制备镁合金氧化物涂层的方法和系统，以确保耐腐蚀性，因为环境友好的电解质和电化学等离子体氧化涂层工艺被应用，并且在镁合金的表面上形成陶瓷氧化物涂层。 构成：在镁合金上制备氧化物涂层的方法如下。 除去镁合金表面的异物和被腐蚀的氧化物层。 将镁合金浸渍在碱性电解液（30）中后，施加AC（交流）脉冲，在镁合金的表面形成氧化镁膜。 将含有氧化镁膜的镁合金洗涤并用蒸馏水干燥。
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公开(公告)号：KR1020110138933A
公开(公告)日：2011-12-28
申请号：KR1020100059124
申请日：2010-06-22
Applicant: 한국산업기술대학교산학협력단
IPC: C25D11/30
CPC classification number: C25D11/30 , C25D11/024
Abstract: PURPOSE: An oxide film forming method of magnesium alloy and a member with oxide film manufactured from the same are provided to improve productivity by increasing a film formation speed. CONSTITUTION: An oxide film forming method of magnesium alloy comprises next steps. The foreign material and the corroded oxide layer are eliminated from the magnesium alloy surface. The alternating-current pulse is applied to magnesium after magnesium is dipped in the green electrolyte. The green electrolyte comprises ammonium fluoride, potassium fluoride, and sodium phosphate. The green electrolyte more includes potassium hydroxide or NaOH and glycerol. The magnesium oxide film is formed on the magnesium alloy surface. The alternating-current pulse is applied to the voltage of 400~600V. Magnesium, in which the magnesium oxide film is formed, is washed with the distilled water and dried.
Abstract translation: 目的：提供一种镁合金的氧化膜形成方法和由其制造的具有氧化膜的部件，以通过提高成膜速度来提高生产率。 构成：镁合金的氧化膜形成方法包括下一步骤。 从镁合金表面除去异物和腐蚀的氧化物层。 将镁浸入绿色电解液中后，将交流脉冲施加到镁上。 绿色电解液包含氟化铵，氟化钾和磷酸钠。 绿色电解质还包括氢氧化钾或NaOH和甘油。 在镁合金表面上形成氧化镁膜。 交流脉冲施加于400〜600V的电压。 形成氧化镁膜的镁用蒸馏水洗涤并干燥。
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公开(公告)号：KR101213976B1
公开(公告)日：2012-12-20
申请号：KR1020100059124
申请日：2010-06-22
Applicant: 한국산업기술대학교산학협력단
IPC: C25D11/30
Abstract: 본발명은마그네슘합금의산화피막형성방법및 이로부터제조된산화피막을가지는부재에관한것으로, 구체적으로는환경친화성전해액을적용하여내부식성, 계면결합력및 도포밀착성을향상시켜우수한표면특성을갖는장점이있다. 본발명에따른마그네슘합금의산화피막형성방법은자동차, 항공기등의수송산업용소재, 우주항공소재, 휴대용가전기기내·외장케이스, 군수산업용소재, 스포츠·레저및 의료용품소재등으로사용되는마그네슘합금의고품위내부식산화세라믹코팅, 도장하지및 다목적다층구조용코팅을위한핵심기술로활용가능하다.
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