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Application filed by Csaba Juhos, Gustav Ernest GrunwaldfiledCriticalCsaba Juhos
Priority to RO110442ApriorityCriticalpatent/RO86994B1/en
Publication of RO86994B1publicationCriticalpatent/RO86994B1/en
Inventia se refera la un electrolit pentru cromarea neagra a pieselor metalice si nemetalice, caracaterizat prin acea ca, în scopul obtinerii unor depuneri de crom negru uniforme si lucioase în zone largi ale densitatii de curent, este constituit din acid cromic, acetat de bariu, azotat de sodiu, acid boric, pe lînga care mai intra unu ion al unui metal alcalino-pamîntos în cantitate de 1-2 g/l si o substanta organica din grupa poliglicolilor în cantitate de 0,05-0,15 g/l.The invention relates to an electrolyte for the chrome plating of metallic and non-metallic parts, characterized in that, in order to obtain uniform and glossy chrome deposits in wide areas of the current density, it consists of chromic acid, barium acetate, nitrate sodium borate, to which an alkaline earth metal ion (1-2 g / l) and an organic substance in the polyglycol group (0.05-0.15 g / l) are added.
RO110442A1983-03-241983-03-24Electrolyte composition for black chromium plating of metal and non-metal paarts
RO86994B1
(en)