GB1431639A - Electroplating chromium and its alloys - Google Patents

Electroplating chromium and its alloys

Info

Publication number
GB1431639A
GB1431639A GB5362474A GB5362474A GB1431639A GB 1431639 A GB1431639 A GB 1431639A GB 5362474 A GB5362474 A GB 5362474A GB 5362474 A GB5362474 A GB 5362474A GB 1431639 A GB1431639 A GB 1431639A
Authority
GB
United Kingdom
Prior art keywords
plating
plating solution
iii
clo
solution
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB5362474A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IBM United Kingdom Ltd
Original Assignee
IBM United Kingdom Ltd
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 IBM United Kingdom Ltd filed Critical IBM United Kingdom Ltd
Priority to GB5362474A priority Critical patent/GB1431639A/en
Priority to DE19752545654 priority patent/DE2545654C2/en
Priority to FR7532215A priority patent/FR2294250A1/en
Priority to IT2937875A priority patent/IT1049022B/en
Priority to JP13829275A priority patent/JPS5175631A/en
Priority to CA240,571A priority patent/CA1072205A/en
Priority to CA240,570A priority patent/CA1064424A/en
Publication of GB1431639A publication Critical patent/GB1431639A/en
Priority to BE176383A priority patent/BE853192Q/en
Priority to HK24081A priority patent/HK24081A/en
Expired legal-status Critical Current

Links

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
    • C25D3/06—Electroplating: Baths therefor from solutions of chromium from solutions of trivalent chromium
    • 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
    • C25D3/56—Electroplating: Baths therefor from solutions of alloys

Abstract

1431639 Chromium electro-plating IBM UNITED KINGDOM Ltd 11 Dec 1974 53624/74 Heading C7B Cr or Cr alloy, e.g. Co-Cr or Ni-Cr, is electroplated on to a cathode e.g. of brass or Cu in a plating solution having a source of Cr comprising a Cr (III) - thiocyanate complex, preferably an aquo or amine Cr (III) thiocyanate complex or mixture of such complexes, e.g. prepared by heating NaNCS with Cr (ClO 4 ) 3 solution; the latter is prepared by adding together Na 2 Cr 2 O 7 , HClO 4 , water and H 2 O 2 . The plating solution may contain 0À03 to 0À5 M Cr (III) 0À05 to 1À0 M NCS and saturation (50 g/l) of boric acid, and have a pH 2 to 3À5. The C.D. may be 20 to 120mA/cm<SP>2</SP>; the voltage may be 7 to 15 volts. A platinized Ti anode may be used immersed in an anolyte of Na ClO 4 separated from the plating solution by a cation exchange membrane. For plating Co or Ni chrome alloy, the plating solution also contains CoSO 4 or NiSO 4 .
GB5362474A 1974-12-11 1974-12-11 Electroplating chromium and its alloys Expired GB1431639A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
GB5362474A GB1431639A (en) 1974-12-11 1974-12-11 Electroplating chromium and its alloys
DE19752545654 DE2545654C2 (en) 1974-12-11 1975-10-11 Electroplating bath and process for depositing chromium or a chromium alloy and manufacturing such a bath
FR7532215A FR2294250A1 (en) 1974-12-11 1975-10-13 PROCESS AND SOLUTION FOR ELECTROLYTIC DEPOSITS OF CHROME AND CHROME ALLOY
IT2937875A IT1049022B (en) 1974-12-11 1975-11-18 PROCESS AND SOLUTION OF ELETTROPLAC CATURA OF CHROME AND CHROME ALLOYS
JP13829275A JPS5175631A (en) 1974-12-11 1975-11-19 Kuromu mataha kuromugokin no denkimetsukyoeki
CA240,571A CA1072205A (en) 1974-12-11 1975-11-26 Data storage apparatus with track centering
CA240,570A CA1064424A (en) 1974-12-11 1975-11-26 Electroplating chromium and its alloys
BE176383A BE853192Q (en) 1974-12-11 1977-04-01 PROCESS AND SOLUTION FOR ELECTROLYTIC DEPOSIT OF CHROME AND CHROME ALLOYS
HK24081A HK24081A (en) 1974-12-11 1981-05-28 Electroplating chromium and its alloys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5362474A GB1431639A (en) 1974-12-11 1974-12-11 Electroplating chromium and its alloys

Publications (1)

Publication Number Publication Date
GB1431639A true GB1431639A (en) 1976-04-14

Family

ID=10468459

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5362474A Expired GB1431639A (en) 1974-12-11 1974-12-11 Electroplating chromium and its alloys

Country Status (7)

Country Link
JP (1) JPS5175631A (en)
CA (2) CA1072205A (en)
DE (1) DE2545654C2 (en)
FR (1) FR2294250A1 (en)
GB (1) GB1431639A (en)
HK (1) HK24081A (en)
IT (1) IT1049022B (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2374436A2 (en) * 1976-12-16 1978-07-13 Ibm PROCESS AND SOLUTION FOR THE ELECTROLYTIC DEPOSIT OF CHROME AND ITS ALLOYS
DE2912351A1 (en) * 1978-04-06 1979-10-18 Ibm DEVICE AND BATHROOM FOR ELECTRIC PLATING AND METHOD OF BATH REGENERATION
DE2943049A1 (en) * 1978-11-11 1980-05-22 Ibm SOLUTION AND METHOD FOR ELECTROPLATING CHROME OR CHROME ALLOYS
DE2944142A1 (en) * 1978-11-11 1980-05-29 Ibm Electrodeposition of bright chromium coatings - using chromium iii-thiocyanate complex bath, the chromium concn. being very low
US4293620A (en) * 1979-06-29 1981-10-06 International Business Machines Corporation Process for the deposition of thick chromium films from trivalent chromium plating solutions and article so produced
US4374007A (en) * 1980-03-10 1983-02-15 International Business Machines Corporation Trivalent chromium electroplating solution and process
DK151643B (en) * 1977-06-14 1987-12-21 Ibm Aqueous solution containing a chromium (III) THIOCYANATE complex for electroplating chromium or a chromium alloy
DK151975B (en) * 1978-11-11 1988-01-18 Ibm CHROME ELECTROPLETING PROCEDURE USING AN AQUILIBRATED Aqueous SOLUTION OF A CHROME (III) THIOCYANATE COMPLEX AS CHROME SOURCE AND CHROMEL ELECTROPLETING SOLUTION USED FOR USE
WO2012150198A2 (en) 2011-05-03 2012-11-08 Atotech Deutschland Gmbh Electroplating bath and method for producing dark chromium layers
CN111876801A (en) * 2020-07-15 2020-11-03 南昌航空大学 Crack-free Ni-Cr alloy coating and preparation method and application thereof

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1552263A (en) * 1977-03-04 1979-09-12 Bnf Metals Tech Centre Trivalent chromium plating baths
GB2093861B (en) * 1981-02-09 1984-08-22 Canning Materials W Ltd Bath for electrodeposition of chromium
GB8411063D0 (en) * 1984-05-01 1984-06-06 Mccormick M Chromium electroplating

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2374436A2 (en) * 1976-12-16 1978-07-13 Ibm PROCESS AND SOLUTION FOR THE ELECTROLYTIC DEPOSIT OF CHROME AND ITS ALLOYS
DK151643B (en) * 1977-06-14 1987-12-21 Ibm Aqueous solution containing a chromium (III) THIOCYANATE complex for electroplating chromium or a chromium alloy
DE2912351A1 (en) * 1978-04-06 1979-10-18 Ibm DEVICE AND BATHROOM FOR ELECTRIC PLATING AND METHOD OF BATH REGENERATION
DE2943049A1 (en) * 1978-11-11 1980-05-22 Ibm SOLUTION AND METHOD FOR ELECTROPLATING CHROME OR CHROME ALLOYS
DE2944142A1 (en) * 1978-11-11 1980-05-29 Ibm Electrodeposition of bright chromium coatings - using chromium iii-thiocyanate complex bath, the chromium concn. being very low
DK151975B (en) * 1978-11-11 1988-01-18 Ibm CHROME ELECTROPLETING PROCEDURE USING AN AQUILIBRATED Aqueous SOLUTION OF A CHROME (III) THIOCYANATE COMPLEX AS CHROME SOURCE AND CHROMEL ELECTROPLETING SOLUTION USED FOR USE
US4293620A (en) * 1979-06-29 1981-10-06 International Business Machines Corporation Process for the deposition of thick chromium films from trivalent chromium plating solutions and article so produced
US4374007A (en) * 1980-03-10 1983-02-15 International Business Machines Corporation Trivalent chromium electroplating solution and process
WO2012150198A2 (en) 2011-05-03 2012-11-08 Atotech Deutschland Gmbh Electroplating bath and method for producing dark chromium layers
EP2886683A2 (en) 2011-05-03 2015-06-24 ATOTECH Deutschland GmbH Electroplating bath and method for producing dark chromium layers
CN111876801A (en) * 2020-07-15 2020-11-03 南昌航空大学 Crack-free Ni-Cr alloy coating and preparation method and application thereof

Also Published As

Publication number Publication date
JPS5621075B2 (en) 1981-05-16
HK24081A (en) 1981-06-05
FR2294250A1 (en) 1976-07-09
DE2545654C2 (en) 1982-09-16
JPS5175631A (en) 1976-06-30
CA1072205A (en) 1980-02-19
DE2545654A1 (en) 1976-06-16
IT1049022B (en) 1981-01-20
CA1064424A (en) 1979-10-16
FR2294250B1 (en) 1979-05-04

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Legal Events

Date Code Title Description
PS Patent sealed
429A Application made for amendment of specification (sect. 29/1949)
429H Application (made) for amendment of specification now open to opposition (sect. 29/1949)
429D Case decided by the comptroller ** specification amended (sect. 29/1949)
SP Amendment (slips) printed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Effective date: 19941210