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GB957649A - Method of treating matte tin plate to prevent darkening - Google Patents

Method of treating matte tin plate to prevent darkening

Info

Publication number
GB957649A
GB957649A GB31709/62A GB3170962A GB957649A GB 957649 A GB957649 A GB 957649A GB 31709/62 A GB31709/62 A GB 31709/62A GB 3170962 A GB3170962 A GB 3170962A GB 957649 A GB957649 A GB 957649A
Authority
GB
United Kingdom
Prior art keywords
tin plate
strip
temperature
dichromate
lacquer
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
GB31709/62A
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.)
United States Steel Corp
Original Assignee
United States Steel Corp
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 United States Steel Corp filed Critical United States Steel Corp
Publication of GB957649A publication Critical patent/GB957649A/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
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02—Anodisation
    • C25D11/28—Anodisation of actinides or alloys based thereon
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/08—Tin or alloys based thereon
    • 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
    • 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
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/48—After-treatment of electroplated surfaces
    • C25D5/50—After-treatment of electroplated surfaces by heat-treatment
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S205/00—Electrolysis: processes, compositions used therein, and methods of preparing the compositions
    • Y10S205/917—Treatment of workpiece between coating steps

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrochemistry (AREA)
  • Mechanical Engineering (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

A method of making matte tin plate, which will not turn yellow on storage and which will not blacken during baking incident to lacquer coating or lithographing, comprises electroplating a tin coating on to a sheet-steel base giving it a matte appearance, heating the tin plate to a temperature below its melting point in the range 420-445 DEG F. for a time not exceeding 10 seconds at the selected temperature, then immediately quenching the tin plate and subjecting it to electrolysis as cathode in an aqueous solution of an alkali metal dichromate containing substantially 24 grams of the dichromate per litre. In an example this solution contained 24 gs./l. sodium dichromate adjusted to a pH of 4.7 at a temperature of 125 DEG F. and a current of 52 coulombs per sq.ft. of the strip was passed. After emerging from the treating solution, the strip was rinsed with cold water, dried with steam and electrostatically oiled. The strip did not darken when baked at a lacquer-curing temperature of 375 DEG F. for 13 minutes.
GB31709/62A 1961-09-05 1962-08-17 Method of treating matte tin plate to prevent darkening Expired GB957649A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US135787A US3216912A (en) 1961-09-05 1961-09-05 Method of treating matte tin plate to prevent darkening

Publications (1)

Publication Number Publication Date
GB957649A true GB957649A (en) 1964-05-06

Family

ID=22469663

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31709/62A Expired GB957649A (en) 1961-09-05 1962-08-17 Method of treating matte tin plate to prevent darkening

Country Status (5)

Country Link
US (1) US3216912A (en)
BE (1) BE621885A (en)
DE (1) DE1271492B (en)
GB (1) GB957649A (en)
NL (1) NL282901A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL288587A (en) * 1962-02-05
US3755091A (en) * 1969-06-19 1973-08-28 Nat Steel Corp Process for reducing discoloration of electrochemically treated chromium plated ferrous metal strip
JPS5326236A (en) * 1976-08-25 1978-03-10 Toyo Kohan Co Ltd Surface treated steel sheet for coating
LU77061A1 (en) * 1977-04-01 1979-01-18
GB1599537A (en) * 1978-04-06 1981-10-07 Ibm Method for brightening an electroplated chromium deposit

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1435260A (en) * 1922-06-29 1922-11-14 John B Russ Method of producing tin-coated sheets
US2357126A (en) * 1938-05-05 1944-08-29 John S Nachtman Alloying and fusing process
US2381778A (en) * 1940-12-13 1945-08-07 Standard Steel Spring Co. Process of producing protected metal articles
US2503217A (en) * 1944-12-15 1950-04-04 Republic Steel Corp Process for treating brightened electrotinplate
US2450509A (en) * 1945-09-12 1948-10-05 Crown Cork & Seal Co Tin plate treatment
BE487191A (en) * 1948-10-27
GB729914A (en) * 1951-06-04 1955-05-11 Eisen Und Huettenwerke Ag A process for melting-on the tin layer of electrolytically tinned iron bands or sheets
NL246336A (en) * 1958-12-11
US3062725A (en) * 1960-08-05 1962-11-06 United States Steel Corp Method of making tin plate
US3087871A (en) * 1960-09-14 1963-04-30 American Can Co Method for improving acid tin plate quality

Also Published As

Publication number Publication date
NL282901A (en)
US3216912A (en) 1965-11-09
BE621885A (en)
DE1271492B (en) 1968-06-27

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