DK134572B - Method and means for electrodeposition of black, chromium-containing surface layers on an electrically conductive member. - Google Patents

Method and means for electrodeposition of black, chromium-containing surface layers on an electrically conductive member.

Info

Publication number: DK134572B
Authority: DK; Denmark
Prior art keywords: electrodeposition; chromium; black; electrically conductive; conductive member
Prior art date: 1966-04-08

Application number

DK178067AA

Other languages

Danish (da)

Other versions

DK134572C (en

Inventor

John Bailey Nelson Jr

Original Assignee

Du Pont

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.)

1966-04-08

Filing date

1967-03-31

Publication date

1976-11-29

1967-03-31 Application filed by Du Pont filed Critical Du Pont

1976-11-29 Publication of DK134572B publication Critical patent/DK134572B/en

1977-05-02 Application granted granted Critical

1977-05-02 Publication of DK134572C publication Critical patent/DK134572C/da

Links

VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 title 1
229910052804 chromium Inorganic materials 0.000 title 1
239000011651 chromium Substances 0.000 title 1
238000004070 electrodeposition Methods 0.000 title 1
238000000034 method Methods 0.000 title 1
239000002344 surface layer Substances 0.000 title 1

Classifications

- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/04—Electroplating: Baths therefor from solutions of chromium
- C25D3/08—Deposition of black chromium, e.g. hexavalent chromium, CrVI

Landscapes

Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Chemical Kinetics & Catalysis (AREA)
Electrochemistry (AREA)
Materials Engineering (AREA)
Metallurgy (AREA)
Organic Chemistry (AREA)
Electroplating And Plating Baths Therefor (AREA)
Electroplating Methods And Accessories (AREA)
Treating Waste Gases (AREA)
Inorganic Compounds Of Heavy Metals (AREA)
Catalysts (AREA)

DK178067AA 1966-04-08 1967-03-31 Method and means for electrodeposition of black, chromium-containing surface layers on an electrically conductive member. DK134572B (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US541075A US3419481A (en)	1966-04-08	1966-04-08	Electrolyte and process for electroplating black chromium and article thereby produced
US59536466A	1966-11-18	1966-11-18

Publications (2)

Publication Number	Publication Date
DK134572B true DK134572B (en)	1976-11-29
DK134572C DK134572C (en)	1977-05-02

Family

ID=27066598

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DK178067AA DK134572B (en)	1966-04-08	1967-03-31	Method and means for electrodeposition of black, chromium-containing surface layers on an electrically conductive member.

Country Status (13)

Country	Link
US (2)	US3419481A (en)
AT (1)	AT272787B (en)
BE (1)	BE696774A (en)
CH (1)	CH473903A (en)
DE (1)	DE1621060C3 (en)
DK (1)	DK134572B (en)
ES (1)	ES338946A1 (en)
FR (1)	FR1522610A (en)
GB (1)	GB1175461A (en)
IL (1)	IL27753A (en)
NL (2)	NL6704974A (en)
NO (1)	NO121926B (en)
SE (1)	SE337151B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL6800734A (en) *	1967-01-18	1968-07-19
US3816142A (en) *	1972-05-08	1974-06-11	K Lindemann	Electroless chromium plating process and composition
US3909404A (en) *	1973-02-26	1975-09-30	Oxy Metal Industries Corp	Composition and process for electrodepositing a black chromium deposit
FR2529581A1 (en) *	1982-06-30	1984-01-06	Armines	ELECTROLYSIS BATH BASED ON TRIVALENT CHROME
HU198970B (en) *	1986-02-19	1989-12-28	Visoram Szemuevegkeretgyar	Electrolysis bath for making bright, black chromium plating
IN167895B (en) *	1988-01-05	1991-01-05	Council Scient Ind Res
EP3162919A1 (en) *	2015-10-29	2017-05-03	GmbH Franz	Method for efficient black chromium plating i
CN106399990B (en) *	2016-08-16	2019-09-20	深圳市诚达科技股份有限公司	A kind of anti-coking nano material and preparation method thereof based on stainless steel surface
CN109183083B (en) *	2018-11-27	2020-05-12	东北大学	Method for improving surface energy of chromium-plated plate based on thermodynamic coupling problem
CN111206269B (en) *	2019-12-19	2021-03-30	陕西斯瑞新材料股份有限公司	Preparation method of electroplating black chromium with high heat radiation coefficient

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CA624887A (en) *		1961-08-01	Allied Chemical Corporation	Electrodeposition of black chromium coatings
US1953484A (en) *	1928-12-11	1934-04-03	Westinghouse Lamp Co	Method of chromium plating
FR754360A (en) *	1929-10-16	1933-11-03
US2088615A (en) *	1932-06-29	1937-08-03	Schlotter Max	Electrodeposition of chromium
DE881596C (en) *	1943-05-28	1953-07-02	Metallgesellschaft Ag	Process to improve the sliding properties of metallic surfaces
US2354746A (en) *	1943-07-12	1944-08-01	Duzmal Stan Edward	Attachment device
US2623847A (en) *	1947-09-10	1952-12-30	Lloyd O Gilbert	Black chromium plating
US2507956A (en) *	1947-11-01	1950-05-16	Lithographic Technical Foundat	Process of coating aluminum
US2777785A (en) *	1953-07-30	1957-01-15	Heintz Mfg Co	Composition for and method of treating metals as well as the treated product
US2946728A (en) *	1955-06-23	1960-07-26	Cleveland Pneumatic Ind Inc	Adherent electroplating on titanium
US2841541A (en) *	1955-10-28	1958-07-01	Diamond Alkali Co	Chemical composition for chromium plating
US2841540A (en) *	1955-10-28	1958-07-01	Diamond Alkali Co	Chemical composition for chromium plating
SU135319A1 (en) *	1960-05-21	1961-01-05	И.И. Левитан	Combined black chrome plating
JPS3922105B1 (en) *	1962-12-20	1964-10-07

1966
- 1966-04-08 US US541075A patent/US3419481A/en not_active Expired - Lifetime
- 1966-11-18 US US595364A patent/US3511759A/en not_active Expired - Lifetime
1967
- 1967-03-31 DK DK178067AA patent/DK134572B/en not_active IP Right Cessation
- 1967-04-05 ES ES338946A patent/ES338946A1/en not_active Expired
- 1967-04-05 FR FR101520A patent/FR1522610A/en not_active Expired
- 1967-04-06 GB GB05939/67A patent/GB1175461A/en not_active Expired
- 1967-04-07 AT AT331167A patent/AT272787B/en active
- 1967-04-07 SE SE04860/67A patent/SE337151B/xx unknown
- 1967-04-07 NO NO167624A patent/NO121926B/no unknown
- 1967-04-07 IL IL27753A patent/IL27753A/en unknown
- 1967-04-07 DE DE1967D0052742 patent/DE1621060C3/en not_active Expired
- 1967-04-07 NL NL6704974A patent/NL6704974A/xx unknown
- 1967-04-07 BE BE696774D patent/BE696774A/xx not_active IP Right Cessation
- 1967-04-10 CH CH502867A patent/CH473903A/en not_active IP Right Cessation
1974
- 1974-03-19 NL NL7403683.A patent/NL157950B/en not_active IP Right Cessation

Also Published As

Publication number	Publication date
GB1175461A (en)	1969-12-23
AT272787B (en)	1969-07-25
US3511759A (en)	1970-05-12
IL27753A (en)	1970-10-30
NL157950B (en)	1978-09-15
DE1621060A1 (en)	1971-05-27
DK134572C (en)	1977-05-02
CH473903A (en)	1969-06-15
DE1621060C3 (en)	1978-01-19
ES338946A1 (en)	1968-09-01
DE1621060B2 (en)	1976-04-15
BE696774A (en)	1967-10-09
NL7403683A (en)	1974-06-25
NO121926B (en)	1971-04-26
SE337151B (en)	1971-07-26
FR1522610A (en)	1968-04-26
NL6704974A (en)	1967-10-09
US3419481A (en)	1968-12-31

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Legal Events

Date	Code	Title	Description
1985-11-11	PBP	Patent lapsed