GB1111091A - Improvements in or relating to electroplating - Google Patents

Improvements in or relating to electroplating

Info

Publication number
GB1111091A
GB1111091A GB19447/65A GB1944765A GB1111091A GB 1111091 A GB1111091 A GB 1111091A GB 19447/65 A GB19447/65 A GB 19447/65A GB 1944765 A GB1944765 A GB 1944765A GB 1111091 A GB1111091 A GB 1111091A
Authority
GB
United Kingdom
Prior art keywords
bismuthate
alkali metal
tin
bismuth
alloy
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
GB19447/65A
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.)
M&T Chemicals Inc
Original Assignee
M&T Chemicals Inc
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 M&T Chemicals Inc filed Critical M&T Chemicals Inc
Publication of GB1111091A publication Critical patent/GB1111091A/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
    • C25D3/56—Electroplating: Baths therefor from solutions of alloys
    • C25D3/60—Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of tin
    • 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
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/922—Static electricity metal bleed-off metallic stock
    • Y10S428/9335—Product by special process
    • Y10S428/934—Electrical process
    • Y10S428/935—Electroplating
    • 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
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/922—Static electricity metal bleed-off metallic stock
    • Y10S428/9335—Product by special process
    • Y10S428/936—Chemical deposition, e.g. electroless plating
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12708—Sn-base component

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)

Abstract

A tin-bismuth alloy having a high resistance to tin pest is cathodically deposited on a basis metal from an aqueous bath containing alkali metal stannate, free alkali metal hydroxide, and a hydroxyalkyl bismuthate, preferably in a concentration representing 0.05 to 1.5 g/l Bi. Preferably the alkali metal employed is potassium. The hydroxyalkyl bismuthate may be any of those formed by reacting equimolecular proportions of sodium bismuthate and ethylene glycol, propylene glycol, glycerol, erythritol, arabitol, sorbitol, dulcitol, mannitol, or the diol, triol, pentanol, or hexol of cyclohexane. Plating is effected with a C.D. of 1 to 40 amp./dm2 at 60 DEG C. to the bath boiling point, e.g. 105 DEG C., using insoluble or soluble e.g. tin or Sn-Al alloy anodes. With insoluble anodes the bath composition may be maintained by adding a composition comprising the bismuthate and an alkaline oxide tin sol as in Specification 1,109,676. The binary alloy deposit typically contains 0.1 to 0.6% by weight bismuth. Basis metals coated are steel, brass, bronze or copper, e.g. pipe or coupling threads or copper wire.ALSO:A hydroxy alkyl bismuthate is prepared by slowly adding with stirring to a polyhydric alcohol (optionally in sufficient water to effect solution) an equimolecular proportion of an alkali metal bismuthate, e.g. sodium bismuthate, and maintaining the temperature in the range 55 DEG to 80 DEG C. The reaction mixture is allowed to cool, the resulting free sodium hydroxide is neutralized with specified organic acids, and the mixture is then poured into ethyl alcohol when the bismuth compound forms a dense flocculent precipitate. After filtration the precipitate is redissolved in water and again precipitated with ethyl alcohol and this treatment is repeated. After drying at 100 DEG C. a heavy powder formed of transparent amber or brown scales is obtained. Typical polyhydric alcohols employed are ethylene or propylene glycol, glycerol, erythritol, arabitol, sorbitol, dulcitol, mannitol, or the diol triol, pentol, or hexol of cyclohexane. Dihydroxypropyl-, trihydroxybutyl -, pentahydroxyhexyl - and pentahydroxycyclohexyl-bismuthate esters are described.
GB19447/65A 1964-05-08 1965-05-07 Improvements in or relating to electroplating Expired GB1111091A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US366193A US3360446A (en) 1964-05-08 1964-05-08 Electrodepositing a tin-bismuth alloy and additives therefor

Publications (1)

Publication Number Publication Date
GB1111091A true GB1111091A (en) 1968-04-24

Family

ID=23442022

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19447/65A Expired GB1111091A (en) 1964-05-08 1965-05-07 Improvements in or relating to electroplating

Country Status (6)

Country Link
US (1) US3360446A (en)
DE (1) DE1254932B (en)
DK (1) DK122534B (en)
GB (1) GB1111091A (en)
NL (1) NL6505833A (en)
SE (1) SE329067B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2071199A5 (en) * 1969-12-19 1971-09-17 Ibm France
US4162205A (en) * 1978-10-19 1979-07-24 Vulcan Materials Company Method of electroplating tin and alkaline electroplating bath therefor
US4252618A (en) * 1980-02-11 1981-02-24 Pitt Metals & Chemicals, Inc. Method of electroplating tin and alkaline electroplating bath therefor
NL194005C (en) * 1988-10-14 2001-04-03 Atochem North America A method, bath and cell for the electrolytic deposition of tin-bismuth alloys.
US5039576A (en) * 1989-05-22 1991-08-13 Atochem North America, Inc. Electrodeposited eutectic tin-bismuth alloy on a conductive substrate
US5227046A (en) * 1991-10-07 1993-07-13 Unisys Corporation Low temperature tin-bismuth electroplating system
US5450784A (en) * 1993-09-28 1995-09-19 Detroit Diesel Corporation Electroplated piston skirt for improved scuff resistance
JP3298537B2 (en) 1999-02-12 2002-07-02 株式会社村田製作所 Sn-Bi alloy plating bath and plating method using the same
JP4728462B2 (en) * 2000-02-29 2011-07-20 日本リーロナール有限会社 Tin electroplating solution and plating method
US6890177B2 (en) * 2002-12-02 2005-05-10 Centrix, Inc. Method and device for the retraction and hemostasis of tissue during crown and bridge procedures
CN105401181A (en) * 2015-12-23 2016-03-16 苏州市金星工艺镀饰有限公司 Electroplating method of environmentally-friendly cyanide-free gold-plating electroplating fluid

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL54999C (en) * 1938-03-07
US2735808A (en) * 1955-01-31 1956-02-21 Mirror bright silver plating

Also Published As

Publication number Publication date
US3360446A (en) 1967-12-26
NL6505833A (en) 1965-11-09
DE1254932B (en) 1967-11-23
SE329067B (en) 1970-09-28
DK122534B (en) 1972-03-13

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