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国营沅江机械厂的酸洗滚筒,原用不锈钢制作,由于酸的浓度大,焊缝受腐蚀严重。因此,滚筒要经常维修和更换,浪费大量资金,严重影响生产。自从1970年使用了硬聚氯乙烯塑料滚筒后,至今一直未更换过。长约4米,直径一米的滚筒,用12毫米厚的硬聚氯乙烯塑料板代替3毫米厚的不锈钢板来制造,中间不用任何支撑,仅靠法兰带动旋转。从使用情况来看,性能完全符合要求。
State-run pickling drum Yuanjiang Machinery Factory, the original stainless steel production, due to the acid concentration, the weld corrosion serious. Therefore, the roller should be frequently repaired and replaced, wasting a lot of money and seriously affecting the production. Since 1970, the use of rigid PVC plastic drum, has not been replaced so far. Length of about 4 meters, a diameter of one meter cylinder, with 12 mm thick PVC plastic sheet instead of 3 mm thick stainless steel plate to manufacture, the middle without any support, only by the flange drive rotation. From the usage point of view, the performance fully meets the requirements.