碳钢管酸洗和钝化工艺.doc

碳钢管酸洗和钝化工艺Pickling and passivation technics for Carbon steel pipe工艺材料：工艺流程：产品名称Name of product产品代号Code name of product主要成分Bases 功能用途Capacity and application除锈剂Rust removerCA-66盐酸、缓蚀剂Hydrochloric，Corrosion inhibitor除锈、除氧化皮Rust cleaning,Oxide skin cleaning.除锈助剂Pickling additives BR-101A表面活性剂等Surface active agent ,etc.脱脂，增强酸洗能力。Strengthen the acid pickling capacity.酸雾抑制剂Acid fog inhibitorBN-111JFC,十二烷基硫酸钠JFC,sodium dodecyl sulfate，etc抑制酸雾挥发Control the acid fog volatilize .白钢酸洗剂Stainless steel pickling agent BL-612硝酸、植酸等Nitric acid ,Phytic acid，etc白钢表面酸洗及钝化Pickling and passivation of the stainless steel 皮膜钝化剂PassovatorTS-300三乙醇胺，碳酸钠等Trolamine ,soda.etc封闭金属表面，形成保护膜。Seal off the metal surface ,from a resist film.除锈除油二合一处理中和处理皮膜钝化处理自然干燥管件外部涂防锈剂。Process:Rust removing and oil cleaning at one time NeutralizationpassivationNatural drying Coat the pipe outside with Antirust .(1) 防锈除油二合一处理槽：Rust removing and oil cleaning tank:按体积比：BR-101A ：CA-66：水：配制工作液。当大气气压低或者天气有雾时，按向槽内加入酸雾抑制剂，用来控制槽液酸雾挥发。As the ratio by volume to make the working solution .When the atmos is low or there is any fog , add 1% Acid fog inhibitor BN-111 by volume .(2) 中和处理槽：Neutralizer Tank :春、夏、秋季时：按重量比810%加入中和剂BH-008配制工作液。冬季气温低时：按比重35%加入TS-300配制工作液。春夏秋工件以中和为主；冬季以清洗为主。In the season of spring ,summer and autumn :Add Neutralizer BH-008 810% by weight to make the working solution .In winter ,when the temperature is low :Add Passivator TS-300 35% by weight to make the working solution .(3) 皮膜钝化处理槽：Passivation tank :按重量比1015%加入水质调节剂TS-300配制工作溶液。Add Passivator 1015% by weight to make the working solution .工作槽液的工艺参数：technic data for the Working solution liquid in the tanks :除锈除油二合一处理槽：常温浸渍，时间：3090min，PH值1.5Rust removing and oil cleaning tank: soakage at the normal temperature , time :3090min ,PH1.5 .中和槽：春夏秋季：PH12，常温浸渍时间35min；冬季PH9，浸渍时间35min，温度30左右。Neutralizer Tank :In the season of spring ,summer and autumn : liquid PH PH12, soakage time 35min; In winter PH12, soakage time 35min. working temperature about 30 .皮膜钝化处理槽：PH值10常温浸渍时间510min。Passivation tank :Liquid PH 10 . soakage time 510min.操作工艺规程：Working engineering procedure .(1) 向挂具筐内摆放钢管工件时，尽量考虑管内溶液容易排放掉。When put pipes in the working basket , please consider that the liquid in the pipe is easy to drain out .(2) 将工件吊放到工作槽溶液中的时候，要上下吊挂数次，使管件在溶液中上下摆动以加快除锈除油速度。When put the working box in the liquid , the box should be lift and lowed many times in order to make the pipe luffing in the mixture , that will make the working process of Rust removing and oil cleaning much faster .(3) 工件从除锈除油槽、中和槽和皮膜钝化槽中吊出后，都应采用双机吊钩装吊挂具架，前后分别提升下降，以排净管内溶液。When the pipes is taking out from the working solution of rust removing and oil cleaning tank, Neutralizer Tank and Passivation tank all should be luffing many times in order to drain out the liquid in the pipe .(4) 经常测定工作槽液的PH值并适当补充工艺材料