一木棋牌app

公司名称: 常州市铝氧化厂
地  址  一: 常州市牛塘镇白家村东风路1号
地  址  二: 常州市横林镇横洛东路1号
联  系  人: 徐先生
手  机: 13806114988
邮政编码: 213000
网  址: http://shuong.com
   
   
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铝的阳极氧化表面通常转化为一层氧化膜
日期:[2016-04-26 16:26:02]    共阅 [311]次

原理:将金属或者金属合金的制件作为其阳极,采用电解的方法使常州铝氧化一木棋牌app表面形成氧化物薄膜。金属氧化物薄膜改变了表面状态和性能,如表面着色,提高耐腐蚀性 、增强了其耐磨性以及其硬度,保护金属表面等。例如铝阳极氧化,将铝以及其合金产品置于相应的电解液(如硫酸、铬酸、草酸等)当中作为阳极,在特定的条件和外加适合的电流作用下,进行电解。阳极的铝或其合金氧化 ,表面上形成一层氧化铝的薄层 ,其厚度大约为5~20微米 ,硬质阳极氧化膜甚至可以高达60~200微米 。阳极氧化后的铝或其合金,提高了其硬度以及其耐磨性,可达250~500千克/平方毫米,良好的耐热性 ,硬质阳极的氧化膜熔点甚至高达2320K ,优良的绝缘性 ,耐击穿的电压甚至高达2000V左右 ,增强了抗腐蚀性能 ,在ω=0.03NaCl盐雾中经几千小时不腐蚀。氧化膜薄层中具有大量的微孔,可吸附各种润滑剂,适合制造发动机气缸或其他耐磨零件;膜微孔吸附能力强可着色成各种美观艳丽的色彩。有色金属或其合金(如铝、镁及其合金等)都可进行阳极氧化处理,这种方法广泛用于机械零件,飞机汽车部件,精密仪器及无线电器材,日用品和建筑装饰等方面。

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