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DITTNER JOSEPH
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DITTNER JOSEPH
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Priority to ES0268026ApriorityCriticalpatent/ES268026A3/en
Publication of ES268026A3publicationCriticalpatent/ES268026A3/en
An improved process of hard chrome plating by electrolysis, characterized in that the parts to be coated with a deposit of hard chrome are previously subjected, that is, before chromating, to a special preparation in a bath whose composition of the following: 0.01% boric acid 40% sulfuric acid fluosilicic acid 8 to 23% Fluoboric acid 10% Water rest and that it works at a temperature of 20º C with a current density of 50 to 100 amperes/dm2 for 5 to 25 minutes. (Machine-translation by Google Translate, not legally binding)
ES0268026A1961-06-061961-06-06A perfect procedure of hard chrome (Machine-translation by Google Translate, not legally binding)
ExpiredES268026A3
(en)
A procedure to electrolytically deposit a bright decorative chrome on a metal base catode. (Machine-translation by Google Translate, not legally binding)
New procedure for the electrolytic polishing of all kinds of steel, iron, nickel and chrome objects (Machine-translation by Google Translate, not legally binding)
Improvements of the galvanotechnical processes for investment of the current in the electrolytic bathrooms (Machine-translation by Google Translate, not legally binding)