许多新建和扩建厂矿的机械设备,大多数是来自苏联或各人民民主国家和国产的。为了防止运转过程中可能产生的腐蚀,在出厂时,这些设备(如机床)都塗有防锈油(黄乾油)。过去,一般是利用汽油(或洗油)把这防锈油洗涤乾浄,这样很费工、费料,而且清洗的时间很长。下面介绍的三油清洗法,在清洗机械设备时可以节省材料和人工,缩短清洗时间。 Many of the machinery and equipment for the construction and expansion of factories and mines are mostly from the Soviet Union or from the people’s democracies and domestically produced ones. In order to prevent possible corrosion during operation, these devices (such as machine tools) are coated with anti-rust oil (yellow dry oil) at the factory. In the past, it was common to use gasoline (or wash oil) to clean the antirust oil, which was labor-intensive, expensive, and had a long cleaning time. The three oil cleaning methods described below can save materials and labor when cleaning machinery and equipment, and shorten the cleaning time.