GB1111091A - Improvements in or relating to electroplating - Google Patents
Improvements in or relating to electroplatingInfo
- 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
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.
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)
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 |
EP0397663B1 (en) * | 1988-10-14 | 1994-05-18 | Atochem North America, Inc. | Electrodeposition 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)
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 |
-
1964
- 1964-05-08 US US366193A patent/US3360446A/en not_active Expired - Lifetime
-
1965
- 1965-05-07 SE SE06016/65A patent/SE329067B/xx unknown
- 1965-05-07 DK DK233765AA patent/DK122534B/en unknown
- 1965-05-07 GB GB19447/65A patent/GB1111091A/en not_active Expired
- 1965-05-07 DE DEM65165A patent/DE1254932B/en active Pending
- 1965-05-07 NL NL6505833A patent/NL6505833A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
NL6505833A (en) | 1965-11-09 |
SE329067B (en) | 1970-09-28 |
US3360446A (en) | 1967-12-26 |
DK122534B (en) | 1972-03-13 |
DE1254932B (en) | 1967-11-23 |
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