GB1246781A - Silver electroplated wires - Google Patents

Silver electroplated wires

Info

Publication number
GB1246781A
GB1246781A GB8607/70A GB860770A GB1246781A GB 1246781 A GB1246781 A GB 1246781A GB 8607/70 A GB8607/70 A GB 8607/70A GB 860770 A GB860770 A GB 860770A GB 1246781 A GB1246781 A GB 1246781A
Authority
GB
United Kingdom
Prior art keywords
wires
plating
cyanide
silver
brass
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
GB8607/70A
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.)
Furukawa Electric Co Ltd
Original Assignee
Furukawa Electric Co Ltd
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 Furukawa Electric Co Ltd filed Critical Furukawa Electric Co Ltd
Publication of GB1246781A publication Critical patent/GB1246781A/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
    • C25D5/10—Electroplating with more than one layer of the same or of different metals
    • 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
    • C25D5/60—Electroplating characterised by the structure or texture of the layers
    • C25D5/615—Microstructure of the layers, e.g. mixed structure
    • C25D5/617—Crystalline layers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Non-Insulated Conductors (AREA)
  • Electroplating And Plating Baths Therefor (AREA)

Abstract

1,246,781. Silver plating wire. FURUKAWA ELECTRIC CO. Ltd. Feb. 23, 1970 [Feb. 22, 1969], No. 8607/70. Heading C7B. Silver covered wires of Cu, Cu alloy (e.g. phosphor-bronze containing 8% Sn) or Fe-Ni alloy (e.g. 48% Fe-52% Ni) are continuously produced, for lead wires of semi-conductor rectifier elements, by brass-plating the wires, e.g. to a thickness 0À1 to 15 micron in a cyanide bath in which the weight ratio of Cu to Zn is 50/50 to 95/5, Ag strike plating in a cyanide bath containing 0À1 to 10 g/l Ag for 5 to 60 seconds, Ag plating in a cyanide bath containing 15 to 60 g/l Ag e.g. for 8 to 25 minutes, then drawing the plated wires to a predetermined diameter and annealing e.g. by induction heating to 200-700‹C., with if desired further drawing. Prior to brass-plating the wires may be buff-polished, degreased in an alkaline bath e.g. anodically, and/or dipped in a solution of alkali metal cyanide e.g. KCN, H 2 SO 4 or HCl.
GB8607/70A 1969-02-22 1970-02-23 Silver electroplated wires Expired GB1246781A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP44013059A JPS4916707B1 (en) 1969-02-22 1969-02-22

Publications (1)

Publication Number Publication Date
GB1246781A true GB1246781A (en) 1971-09-22

Family

ID=11822542

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8607/70A Expired GB1246781A (en) 1969-02-22 1970-02-23 Silver electroplated wires

Country Status (2)

Country Link
JP (1) JPS4916707B1 (en)
GB (1) GB1246781A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3206262A1 (en) * 1982-02-20 1983-09-08 Doduco KG Dr. Eugen Dürrwächter, 7530 Pforzheim METHOD FOR PRODUCING TAPES COATED WITH PRECIOUS METAL AS A SEMI-FINISHED PRODUCT FOR ELECTRICAL CONTACTS
CN118166406A (en) * 2024-05-13 2024-06-11 烟台一诺电子材料有限公司 Preparation method of nickel-silver plated bonding wire

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5233004U (en) * 1975-08-30 1977-03-08
JPS5673166U (en) * 1979-11-12 1981-06-16

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3206262A1 (en) * 1982-02-20 1983-09-08 Doduco KG Dr. Eugen Dürrwächter, 7530 Pforzheim METHOD FOR PRODUCING TAPES COATED WITH PRECIOUS METAL AS A SEMI-FINISHED PRODUCT FOR ELECTRICAL CONTACTS
CN118166406A (en) * 2024-05-13 2024-06-11 烟台一诺电子材料有限公司 Preparation method of nickel-silver plated bonding wire

Also Published As

Publication number Publication date
DE2008368A1 (en) 1970-09-10
DE2008368B2 (en) 1972-11-02
JPS4916707B1 (en) 1974-04-24

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