RO86994B1 - Electrolyte composition for black chromium plating of metal and non-metal paarts - Google Patents

Electrolyte composition for black chromium plating of metal and non-metal paarts

Info

Publication number
RO86994B1
RO86994B1 RO110442A RO11044283A RO86994B1 RO 86994 B1 RO86994 B1 RO 86994B1 RO 110442 A RO110442 A RO 110442A RO 11044283 A RO11044283 A RO 11044283A RO 86994 B1 RO86994 B1 RO 86994B1
Authority
RO
Romania
Prior art keywords
metal
paarts
electrolyte composition
chromium plating
black chromium
Prior art date
Application number
RO110442A
Other languages
Romanian (ro)
Inventor
Csaba Juhos
Gustav Ernest Grunwald
Original Assignee
Csaba Juhos
Gustav Ernest Grunwald
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Csaba Juhos, Gustav Ernest Grunwald filed Critical Csaba Juhos
Priority to RO110442A priority Critical patent/RO86994B1/en
Publication of RO86994B1 publication Critical patent/RO86994B1/en

Links

Landscapes

  • Electroplating And Plating Baths Therefor (AREA)

Abstract

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.

RO110442A 1983-03-24 1983-03-24 Electrolyte composition for black chromium plating of metal and non-metal paarts RO86994B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO110442A RO86994B1 (en) 1983-03-24 1983-03-24 Electrolyte composition for black chromium plating of metal and non-metal paarts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO110442A RO86994B1 (en) 1983-03-24 1983-03-24 Electrolyte composition for black chromium plating of metal and non-metal paarts

Publications (1)

Publication Number Publication Date
RO86994B1 true RO86994B1 (en) 1985-05-31

Family

ID=42829065

Family Applications (1)

Application Number Title Priority Date Filing Date
RO110442A RO86994B1 (en) 1983-03-24 1983-03-24 Electrolyte composition for black chromium plating of metal and non-metal paarts

Country Status (1)

Country Link
RO (1) RO86994B1 (en)

Similar Documents

Publication Publication Date Title
DE3377641D1 (en) Improved preparative process for alkaline earth metal, aluminum-containing spinels
IL69122A (en) Method for electroplating non-metallic surfaces
GB2157884B (en) Photoemissive cathode for high current density photoelectron generators
ZA776236B (en) Erosion and corrosion resistant alloys containing chromium,nickel and molybdenum
ZA80199B (en) Electroplating bath and process for producing bright, high-leveling nickel iron electrodeposits
DE3377640D1 (en) Improved preparative process for alkaline earth metal, aluminum-containing spinels
ES384095A1 (en) Process for electroplating chromium and electrolytes therefor
GB2071151B (en) Trivalent chromium electroplating
GB2034354B (en) Elimination of anode hydrogen cyanide formation in trivalent chromium plating
ES429148A1 (en) Weak acidic bright ductile zinc electrolyte
GB2065637B (en) Zinc electroplating process and solution and brightener therefor
JPS55104493A (en) Brightener composition for acidic zinc electroplating bath and method
SE8106867L (en) ELECTROLYTIC PROPOSAL OF PALLADIUM AND PALLADIUM ALLOYS
IT1161398B (en) PROCESS AND SOLUTION FOR AN ELECTROLYTIC IRON DEPOSIT WITH COBALT AND / OR NICKEL
PT76022B (en) Trivalent chromium electroplating process
JPS56112493A (en) Chrome plating method
EP0178135A3 (en) Impact plating powdered metal on to metallic articles
JPS52152834A (en) Pretreating process for coating steel plate with molten zinc
DE3262272D1 (en) Process for the galvanic deposit of a zinc-nickel-alloy layer on a metal object, in particular on steel strip
JPS545832A (en) Electroplating solution for chromium or chromium alloy
ES496940A0 (en) AN IMPROVED METHOD FOR THE BRIGHT AND GLOSSY ZINC ELECTROLYTIC DEPOSITION
FR2463823B1 (en) METHODS AND COMPOSITIONS FOR THE ELECTROLYTIC DEPOSITION OF PALLADIUM USING A SOURCE OF FREE NITRITE IONS
ATE25267T1 (en) SALT BATH FOR ELECTRICAL PRODUCTION OF WEAR-RESISTANT BORIDE COATINGS.
GB1544833A (en) Chromium electroplating
GB1224502A (en) Electrolytic chromium plating from a bath containing fluosilicate sodium, ammonium and/or magnesium ions.