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纯的白色氧化铝由于熔点高、导热系数低、化学稳定性好,早已被广泛地作为喷涂材料使用。用氧化铝喷成的涂具有耐热、耐磨、耐化学腐蚀和电绝缘等特点,在航天、航空和各个工业部门中有着广泛的用途。随着我国热喷涂技术的发展和推广,氧化铝的喷涂应用也就更为普遍。一九八一年,我们在研制某项工程用的氧化铝涂层时发现:根据 METCO 公司技术公报中推荐的一组喷涂氧化铝(METCO105NS)参数,用美国7M 等离子喷涂设备
Pure white alumina has long been widely used as a spray material because of its high melting point, low thermal conductivity and good chemical stability. Sprayed with alumina coating with heat resistance, wear resistance, chemical resistance and electrical insulation and other characteristics, in aerospace, aviation and various industrial sectors have a wide range of uses. With the development and promotion of thermal spraying technology in our country, the application of alumina spraying is more common. In 1981, when we developed the alumina coating for a project, we found that according to the METCO 105NS parameter recommended by METCO, the 7M plasma spraying equipment