GB1413940A - Chromium-chromium dioxide depositing electrolyte and process for the post-treatment of tin plate or strip - Google Patents

Chromium-chromium dioxide depositing electrolyte and process for the post-treatment of tin plate or strip

Info

Publication number
GB1413940A
GB1413940A GB1764174A GB1764174A GB1413940A GB 1413940 A GB1413940 A GB 1413940A GB 1764174 A GB1764174 A GB 1764174A GB 1764174 A GB1764174 A GB 1764174A GB 1413940 A GB1413940 A GB 1413940A
Authority
GB
United Kingdom
Prior art keywords
chromium
strip
tin plate
post
treatment
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
GB1764174A
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.)
Kloeckner Werke AG
Original Assignee
Kloeckner Werke AG
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
Priority claimed from DE19732323336 external-priority patent/DE2323336C2/en
Application filed by Kloeckner Werke AG filed Critical Kloeckner Werke AG
Publication of GB1413940A publication Critical patent/GB1413940A/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
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/48—After-treatment of electroplated surfaces
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/38—Chromatising

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Cartons (AREA)
  • Making Paper Articles (AREA)

Abstract

1413940 Electro-depositing chromiumchromium oxide KLOCKNER-WERKE AG 23 April 1974 [9 May 1973] 17641/74 Heading C7B Tin plate or strip for food containers or industrial packaging is electrolytically post-treated using an electrolyte comprising an aqueous solution containing an alkali metal dichromate e.g. 20 to 25 g/l Na 2 Cr 2 O 7 , 5 to 10 g/l alkali metal (e.g. Na) acetate and 4 to 6 g/l CrO 3 , and having a pH between 4 and 5 and electrical conductivity of 28,000 to 36,000ÁS/cm at 50‹C, with cathodic current density 5.5 to 9.5 A/dm<SP>2</SP>, where 8 to 14 coulomb/dm<SP>2</SP> is used for 1 to 2 sec., to electrodeposit Cr-Cr oxide e.g. containing 25 to 35 mg Cr/m<SP>2</SP> tin plate or strip.
GB1764174A 1973-05-09 1974-04-23 Chromium-chromium dioxide depositing electrolyte and process for the post-treatment of tin plate or strip Expired GB1413940A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732323336 DE2323336C2 (en) 1973-05-09 Electrolyte and process for the cathodic post-treatment of tinplate or strip

Publications (1)

Publication Number Publication Date
GB1413940A true GB1413940A (en) 1975-11-12

Family

ID=5880385

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1764174A Expired GB1413940A (en) 1973-05-09 1974-04-23 Chromium-chromium dioxide depositing electrolyte and process for the post-treatment of tin plate or strip

Country Status (8)

Country Link
US (1) US3925171A (en)
JP (1) JPS5015742A (en)
BE (1) BE813574A (en)
FR (1) FR2228857B1 (en)
GB (1) GB1413940A (en)
NL (1) NL7402029A (en)
NO (1) NO134756C (en)
SU (1) SU639461A3 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2465011A1 (en) * 1979-09-06 1981-03-20 Carnaud Sa MATERIAL CONSISTING OF A PROTECTED STEEL SHEET, METHOD FOR MANUFACTURING SAME, AND APPLICATIONS THEREOF, IN PARTICULAR TO PRESERVE BOXES
JPS6046199B2 (en) * 1981-06-10 1985-10-15 川崎製鉄株式会社 Manufacturing method of surface-treated steel plate for welded cans with high rust resistance
JPS5928441A (en) * 1982-08-09 1984-02-15 Ueno Seiyaku Oyo Kenkyusho:Kk Coated thiamine preparation for pisciculture and its preparation
GB2157319A (en) * 1984-04-13 1985-10-23 Toyo Kohan Co Ltd Tin free steel and its production
JPS61238336A (en) * 1985-04-15 1986-10-23 Ajinomoto Co Inc Preparation of coated material having gradual release property
US6045686A (en) * 1997-03-18 2000-04-04 The University Of Connecticut Method and apparatus for electrochemical delacquering and detinning
EP1289028B1 (en) * 2001-09-04 2008-01-16 Sony Deutschland GmbH Photovoltaic device and method for preparing the same
US20120100425A1 (en) * 2004-01-16 2012-04-26 Stauffer John E Lead alkaline battery

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2437620A (en) * 1943-08-31 1948-03-09 Aluminum Co Of America Method of coating masses of small copper-bearing aluminum articles
US2746915A (en) * 1951-10-15 1956-05-22 Autoyre Co Inc Electrolytic metal treatment and article
US3278401A (en) * 1966-01-12 1966-10-11 Nat Steel Corp Method of treating tin-containing surfaces
GB1220111A (en) * 1968-04-19 1971-01-20 Nippon Kokan Kk A method of treating tin plate or galvanized sheet

Also Published As

Publication number Publication date
NL7402029A (en) 1974-11-12
JPS5015742A (en) 1975-02-19
NO134756C (en) 1976-12-08
BE813574A (en) 1974-10-11
DE2323336B1 (en) 1974-08-29
FR2228857A1 (en) 1974-12-06
DE2323336A1 (en) 1974-08-29
FR2228857B1 (en) 1976-06-25
SU639461A3 (en) 1978-12-25
US3925171A (en) 1975-12-09
NO134756B (en) 1976-08-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee