在熔盐和熔碱中清洗零件的方法,在修理美容企业中被广泛应用来清除氧化铁皮和焦皮。在熔盐中清洗零件,其实质在于当温度为400摄氏度正负10摄氏度的情况下,在质量分数为65%氢氧化钠、质量分数为30%硝酸钠和质量分数为5%氯化钠的熔体中处理零件。在熔体中积炭的沉积物充分被氧化,而水垢则由于它所含成分的体积和结构变化而破裂。腐蚀和氧化铁的产物同时被清除,零件行到钝化处理。通用的清洗过程包括四个作业:在熔体中处理;在流动水中洗涤;在酸性溶液中浸蚀和热水中二次洗涤。 熔盐清洗方法必须采用熔盐装置,此种装置必须具备很强的防腐蚀性,对此种装置的保养要特别认真遵守安全规则。在熔盐中清洗零件的方法可以使清洗在高度机械化和自动化水平的情况下进行,大大提高了生产率。这种方法适于在年修理美容计划超过5000台发动机的大型企业中采用。
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In the molten salt and melt in the method of alkali cleaning parts, in repair beauty enterprise is widely used to remove iron oxide and burn skin. Melt the cleaning parts in salt, the essence lies in when the temperature for 400 degrees Celsius plus or minus 10 degrees Celsius, and by the quality score for 65% sodium hydroxide, quality score for 30% sodium nitrate and quality score for 5% of sodium chloride in dealing with parts of the melt. Melt in the sediments in carbon is fully oxidation, and scale is because it contains composition to size and structure change and rupture. The product of corrosion and iron oxide and be removed, parts line to the passivation treatment. General cleaning process including four homework: in the treatment of melt; Flow in the water washing; In the acidic solution and the hot water erosion in secondary washing. Molten salt cleaning method must be the welding device, this device salt must have strong corrosion resistence to the maintenance of the device to special earnest to comply with safety regulations. Melt the cleaning parts salt in the method can make cleaning at high mechanization and automation level situation, greatly improving the productivity. This method is suitable for years more than 5000 plan repair beauty engine of large enterprise using.
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