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Priority to RO103994ApriorityCriticalpatent/RO82934B1/ro
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Publication of RO82934B1publicationCriticalpatent/RO82934B1/ro
Cleaning And De-Greasing Of Metallic Materials By Chemical Methods
(AREA)
Abstract
Inventia se refera la un procedeu de metalizare a suprafetelor neconductoare, care utilizeaza pentru degresare acida o solutie de 1...3 g/l lauril sulfonat, 10...30 m/l acid sulfuric concentrat cu pH=1, la temepratura de lucru, 18...25 degree C, timp de stationare de 5...12 min; pentru microcorodare o solutie de 0,1...1 g/l acid tartric, 25...250 ml/acid sulfuric concentrat, 80...150 ml/l acid sulfuric concentrat; 80...150 ml/l perhidril, 33%, la temperatura de lucru de 18...25 degree c, timp de stationare de 1 min 45 s; pentru decapare o solutie de 100 ml/l acid sulfuric concentrat, 20...50 ml/l perhidrol 33%, la temepratura de lucru de 18...25 degree C, timp de stationare de 1...3 min; pentru regenerare o solutie de 0,5...2 g/l sulfat feros cu 7 H2O, 1...5 ml/l acid sulfuric concentrat, 0,1...1 g/l acid tartric la temperatura de lucru de 18...25 degree C, timp de stationare de 5...7 min.
RO103994A1981-04-101981-04-10Procedeu de metalizare a suprafetelor neconductoare
RO82934B1
(ro)
Procede de traitement au bain de sels, en vue d'ameliorer la resistance a la corrosion, de pieces en metal ferreux qui ont subi un traitement thermochimique prealable