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近年来,各地普遍推广钢管脚手架,一些单位由于对紧固螺栓的使用、保管和维修不当,致使螺丝钉等小铁件锈蚀严重.造成大量的浪费,有些只使用1～2次,就被当作废品丢掉。根据我多年的经验,可用盐酸除锈。采用这种方法除锈的优点是:快速、保质、方便并适合批量除锈。一、具体作法选一容器,最好是耐酸的容器,如水缸等。先放入清水,然后徐徐加入盐酸(重量比为水和酸各一半),把生锈小铁件放入铁丝篮中,轻轻放到缸内,使酸溶液淹没小铁件,并不断摇动篮子,过10～20分
In recent years, steel pipe scaffolding has been widely used throughout the country, and some units have used rusted bolts for their improper use, storage, and maintenance, resulting in serious corrosion of small iron parts such as screws. This has resulted in a lot of waste. Some use it only once or twice. Waste thrown away. According to my many years of experience, hydrochloric acid can be used for rust removal. The advantages of using this method of rust removal are: fast, shelf-life, convenient and suitable for batch rust removal. First, choose a container for a specific practice, preferably an acid-resistant container such as a water tank. Put clear water first, and then slowly add hydrochloric acid (half of the weight of water and acid). Place the rusted iron pieces into the wire basket and gently place them into the cylinder so that the acid solution will drown the small iron pieces and shake it continuously. Basket, 10 to 20 minutes