GB785189A - Improvements in or relating to method and apparatus for electrodeposition - Google Patents

Improvements in or relating to method and apparatus for electrodeposition

Info

Publication number
GB785189A
GB785189A GB8743/56A GB874356A GB785189A GB 785189 A GB785189 A GB 785189A GB 8743/56 A GB8743/56 A GB 8743/56A GB 874356 A GB874356 A GB 874356A GB 785189 A GB785189 A GB 785189A
Authority
GB
United Kingdom
Prior art keywords
bath
area
mesh
ounces
rinsed
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
GB8743/56A
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.)
Tiarco Corp
Original Assignee
Tiarco 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 Tiarco Corp filed Critical Tiarco Corp
Publication of GB785189A publication Critical patent/GB785189A/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
    • C25D5/02—Electroplating of selected surface areas
    • C25D5/022—Electroplating of selected surface areas using masking means
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D7/00—Electroplating characterised by the article coated
    • C25D7/10—Bearings
    • 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
    • C25D3/04—Electroplating: Baths therefor from solutions of chromium
    • C25D3/08—Deposition of black chromium, e.g. hexavalent chromium, CrVI

Landscapes

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

Abstract

785,189. Electrodeposition. TIARCO CORPORATION. March 20,1956 [March 25, 1955], No. 8743/56. Drawings to Specification. Class 41. A method of electrodepositing metal, e.g. chromium, from a bath having a poor throwing power on to an object having a multiplanar area, e.g. a twist drill, the toothed edge of a saw or the serrated edge of a gear-wheel, comprises covering the area with a porous, electrically conductive fabric, e.g. wire mesh or perforated metal sheet, and passing current between the object as cathode and an anode. The mesh may be 1/ 16 inch mesh, e.g. of copper or brass, and tightly envelops all sides of the area to be plated. The bath comprises 32 ounces of chromic acid per gallon and 0.32 ounces of sulphate in the form of sulphuric acid per gallon, a temperature of 120‹ to 125‹ F. being maintained and a current density of 3 amps. per square inch. Prior to plating, the object with the covering in position, may be anodically cleaned, rinsed, dipped in muriatic acid and rinsed, and during plating is suspended in the bath equidistantly spaced from a number of anodes.
GB8743/56A 1955-03-25 1956-03-20 Improvements in or relating to method and apparatus for electrodeposition Expired GB785189A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US496750A US2784151A (en) 1955-03-25 1955-03-25 Electrodeposition

Publications (1)

Publication Number Publication Date
GB785189A true GB785189A (en) 1957-10-23

Family

ID=23973962

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8743/56A Expired GB785189A (en) 1955-03-25 1956-03-20 Improvements in or relating to method and apparatus for electrodeposition

Country Status (3)

Country Link
US (1) US2784151A (en)
FR (1) FR1149265A (en)
GB (1) GB785189A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3046204A (en) * 1957-08-02 1962-07-24 Lee H Barron Method for making diamond tools
NL297569A (en) * 1962-09-06
US3436813A (en) * 1964-02-06 1969-04-08 Trw Inc Information storage devices
US3525676A (en) * 1967-12-20 1970-08-25 M & T Chemicals Inc Corrosion inhibition
US4126521A (en) * 1977-10-19 1978-11-21 Computer Peripherals, Inc. Method of coating metal surfaces
US4411934A (en) * 1980-11-10 1983-10-25 The Gates Rubber Company Method for plating a threaded member with an in situ thread protector
FR2828890B1 (en) * 2001-08-24 2004-02-13 Itt Mfg Enterprises Inc DEVICE FOR CONTINUOUS DEPOSITION BY ELECTRODEPOSITION AND ELECTRICAL OR ELECTRONIC COMPONENTS MADE OF BAND COMPRISING AN ELECTRODEPOSITION PLATING LAYER

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1567791A (en) * 1924-11-01 1925-12-29 Siemens Ag Electrolytic production of metals
US1868052A (en) * 1929-11-13 1932-07-19 Udylite Process Company Anode
US2194551A (en) * 1936-06-25 1940-03-26 Emi Ltd Means and method of producing flat surfaces
GB496113A (en) * 1937-03-23 1938-11-23 Alfred Reginald Thomas Improvements in or relating to the electro-deposition of metals
US2434417A (en) * 1943-10-25 1948-01-13 Cherry Rivet Company Small parts holder for electrolytic baths
US2745798A (en) * 1951-11-06 1956-05-15 Batist R Haueisen Method of coating metal surfaces

Also Published As

Publication number Publication date
FR1149265A (en) 1957-12-23
US2784151A (en) 1957-03-05

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