GB680937A - Improvements in electroplating - Google Patents

Improvements in electroplating

Info

Publication number
GB680937A
GB680937A GB14318/50A GB1431850A GB680937A GB 680937 A GB680937 A GB 680937A GB 14318/50 A GB14318/50 A GB 14318/50A GB 1431850 A GB1431850 A GB 1431850A GB 680937 A GB680937 A GB 680937A
Authority
GB
United Kingdom
Prior art keywords
tin
stannous
per litre
grms
pyrophosphate
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
GB14318/50A
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.)
City Auto Stamping Co
Original Assignee
City Auto Stamping Co
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 City Auto Stamping Co filed Critical City Auto Stamping Co
Publication of GB680937A publication Critical patent/GB680937A/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
    • 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
    • C25D3/58—Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of copper

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

680,937. Electrodepositing copper-tin alloys. CITY AUTO STAMPING CO. June 8, 1950 [June 11, 1949], No. 14318/50. Class 41. A process of electrodepositing an alloy of copper and tin comprises passing an electric current from an anode to a cathode through an electrolyte having a pH value of from 6.5 to 10.5 and containing dissolved therein a soluble alkali-metal cuprous complex, a soluble alkalimetal stannous complex, an excess of alkalimetal pyrophosphate, a polypeptide and an alkali-metal orthophosphate. The alkali-metal radical may be replaced by the ammonium radical. The word " polypeptide " is intended to include proteins, amino acids, glue and gelatine. The cuprous complex may be formed from a cuprous salt dissolved in potassium cyanide, and the stannous complex from a stannous salt such as stannous sulphate, chloride, or pyrophosphate, dissolved in potassium pyrophosphate. In the process separate anodes of tin and copper are preferably used, although an anode of tin and one of tin-copper alloy may be used. As an example of the process, a basis metal is immersed in a bath consisting of from 8 to 300 grms. per litre of a pyrophosphate compound selected from ammonium, potassium, and sodium pyrophosphates, from 2 to 230 grms. per litre of a soluble cuprous compound selected from cuprous cyanide and halide, from 2 to 350 grms. per litre of a cyanide selected from ammonium, potassium, and sodium cyanides, from 2 to 50 grams per litre of a soluble stannous compound selected from stannous chloride, pyrophosphate and sulphate, from 5 to 120 grms. per litre of an orthophosphate compound selected from ammonium, potassium, and sodium mono-, di-, and triorthophosphates, from 0.01 to 5 grms. per litre of protein selected from glue and gelatine, and water. A current is passed through the bath, in which there is a potential drop of from 0.5 to 2 volts between the anodes, the copper anode to cathode voltage being from 2 to 3 volts and the tin-containing anode to cathode voltage being from 0.1 to less than 2 volts.
GB14318/50A 1949-06-11 1950-06-08 Improvements in electroplating Expired GB680937A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US98642A US2658032A (en) 1949-06-11 1949-06-11 Electrodeposition of bright copper-tin alloy

Publications (1)

Publication Number Publication Date
GB680937A true GB680937A (en) 1952-10-15

Family

ID=22270268

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14318/50A Expired GB680937A (en) 1949-06-11 1950-06-08 Improvements in electroplating

Country Status (7)

Country Link
US (1) US2658032A (en)
BE (1) BE496261A (en)
CH (1) CH294029A (en)
DE (1) DE860300C (en)
FR (1) FR1019841A (en)
GB (1) GB680937A (en)
NL (1) NL75841C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2854388A (en) * 1955-03-14 1958-09-30 City Auto Stamping Co Electrodeposition of copper-tin alloys
US5614327A (en) * 1994-09-09 1997-03-25 Sarthoise De Revetements Electrolytiques Process for protecting a silver or silver-coated part
US20140251818A1 (en) * 2013-03-07 2014-09-11 Rohm And Haas Electronic Materials Llc Tin alloy plating solution
AT514427A4 (en) * 2013-07-05 2015-01-15 W Garhöfer Ges M B H Ing Electrolyte bath and thus available objects or articles

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2885331A (en) * 1956-10-24 1959-05-05 Du Pont Copper plating
US2886500A (en) * 1956-11-01 1959-05-12 Battelle Development Corp Electroplating of copper alloys
US3440151A (en) * 1965-06-02 1969-04-22 Robert Duva Electrodeposition of copper-tin alloys
DE3339541C2 (en) * 1983-11-02 1986-08-07 Degussa Ag, 6000 Frankfurt Alkaline-cyanide bath for the galvanic deposition of copper-tin alloy coatings
DE4324995C2 (en) * 1993-07-26 1995-12-21 Demetron Gmbh Cyanide-alkaline baths for the galvanic deposition of copper-tin alloy coatings
CN100339486C (en) 2002-07-24 2007-09-26 舍林股份公司 Microbiological method for the production of 7 alpha-substituted 11 alpha-hydroxysteroids
KR100906008B1 (en) * 2004-09-24 2009-07-06 자덴 징크 프로덕츠, 인코포레이티드 Electroplated metals with silvery-white appearance and method of making
US7296370B2 (en) * 2004-09-24 2007-11-20 Jarden Zinc Products, Inc. Electroplated metals with silvery-white appearance and method of making
IT202100008084A1 (en) * 2021-03-31 2022-10-01 Bluclad S P A ELECTROLYTIC SOLUTION FOR THE ELECTRODEPOSITION ON A METALLIC SUBSTRATE OF A COPPER AND TIN BASED PREPARATORY LAYER

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1536859A (en) * 1924-06-05 1925-05-05 Udylite Process Company Electroplating
FR743797A (en) * 1931-10-19 1933-04-06
US1970549A (en) * 1932-10-18 1934-08-21 City Auto Stamping Co Process of electroplating bronze
US2079842A (en) * 1935-11-16 1937-05-11 Cinamon Lionel Electroplating bath composition and method of producing the same
US2216605A (en) * 1938-03-30 1940-10-01 Special Chemicals Corp Electroplating
FR863312A (en) * 1939-02-20 1941-03-29 Method and apparatus for the electroplating of tin alloys
NL69111C (en) * 1939-10-25
US2468825A (en) * 1944-12-21 1949-05-03 Westinghouse Electric Corp Plating
US2436316A (en) * 1946-04-25 1948-02-17 Westinghouse Electric Corp Bright alloy plating

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2854388A (en) * 1955-03-14 1958-09-30 City Auto Stamping Co Electrodeposition of copper-tin alloys
US5614327A (en) * 1994-09-09 1997-03-25 Sarthoise De Revetements Electrolytiques Process for protecting a silver or silver-coated part
US20140251818A1 (en) * 2013-03-07 2014-09-11 Rohm And Haas Electronic Materials Llc Tin alloy plating solution
US9228269B2 (en) * 2013-03-07 2016-01-05 Rohm And Haas Electronic Materials Llc Tin alloy plating solution
AT514427A4 (en) * 2013-07-05 2015-01-15 W Garhöfer Ges M B H Ing Electrolyte bath and thus available objects or articles
AT514427B1 (en) * 2013-07-05 2015-01-15 W Garhöfer Ges M B H Ing Electrolyte bath and thus available objects or articles

Also Published As

Publication number Publication date
US2658032A (en) 1953-11-03
CH294029A (en) 1953-10-31
BE496261A (en)
DE860300C (en) 1952-12-18
NL75841C (en)
FR1019841A (en) 1953-01-27

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