GB314392A - Method of and means for sectional electro-plating, particularly applicable for plating large objects with chromium - Google Patents

Method of and means for sectional electro-plating, particularly applicable for plating large objects with chromium

Info

Publication number
GB314392A
GB314392A GB19529/29A GB1952929A GB314392A GB 314392 A GB314392 A GB 314392A GB 19529/29 A GB19529/29 A GB 19529/29A GB 1952929 A GB1952929 A GB 1952929A GB 314392 A GB314392 A GB 314392A
Authority
GB
United Kingdom
Prior art keywords
plating
sections
container
chromium
anode
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
GB19529/29A
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.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens AG
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 Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Publication of GB314392A publication Critical patent/GB314392A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D7/00Electroplating characterised by the article coated
    • C25D7/04Tubes; Rings; Hollow bodies

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

314,392. Siemens & Halske Akt.- Ges., (Assignees of Schwartz, K. W.). June 26, 1928, [Convention date]. Drawings to Specification. Chromium and other metals, depositing; metals, pickling; electrodes, moving; connections; electrolytes, circulating, heating, and cooling.- Large objects are electroplated in sections using anodes which are divided into sections insulated from one another and connected to separate supply leads. For chromium-plating the inside of a reaction chamber for oil cracking purposes having a height of 12 metres and a diameter of 3 metres, the anodes are rotated by a spindle introduced through an aperture at the top of the chamber and supported in a bearing in a horizontal plate near the bottom. The anode sections are supported by tubes which serve as protectors for the supply leads, the tubes comprising easilydetachable longitudinal sections, the upper of which are removed successively so as to effect plating of the container in strips from bottom to top. The leads are connected to independent collector rings. Two anode sections lying in the same plane may be provided, one of which is conected to such a voltage that generation of gas without deposition of metal takes place so as to effect cleaning of the cathode, the other anode being connected to a higher voltage for deposition. Curved anode sections are provided for plating the ends of the container; these may be connected so as to produce a higher current density at recessed parts. An overflow chamber is fitted at the top of the container from which the electrolyte consisting mainly of chromic acid is returned by a pump through a heating or cooling device to the bottom of the container.
GB19529/29A 1928-06-26 1929-06-25 Method of and means for sectional electro-plating, particularly applicable for plating large objects with chromium Expired GB314392A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US288426A US1794487A (en) 1928-06-26 1928-06-26 Process and apparatus for electroplating

Publications (1)

Publication Number Publication Date
GB314392A true GB314392A (en) 1930-08-07

Family

ID=23107086

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19529/29A Expired GB314392A (en) 1928-06-26 1929-06-25 Method of and means for sectional electro-plating, particularly applicable for plating large objects with chromium

Country Status (3)

Country Link
US (1) US1794487A (en)
DE (1) DE531757C (en)
GB (1) GB314392A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2448116A (en) * 1942-08-05 1948-08-31 Continental Can Co Can end treating machine
DE939362C (en) * 1953-06-04 1956-02-23 Wilhelm Meyer Process and device for internal chrome plating
US3857764A (en) * 1971-08-20 1974-12-31 J Jumer Electrochemical processing of inner surfaces of large vessels
US4001094A (en) * 1974-09-19 1977-01-04 Jumer John F Method for incremental electro-processing of large areas
US20040055873A1 (en) * 2002-09-24 2004-03-25 Digital Matrix Corporation Apparatus and method for improved electroforming
JP5986925B2 (en) * 2012-12-28 2016-09-06 三菱重工業株式会社 Rotating machine manufacturing method, rotating machine plating method
CN114411230A (en) * 2022-03-01 2022-04-29 中国原子能科学研究院 Electroplating device and electroplating method for pipe fitting

Also Published As

Publication number Publication date
US1794487A (en) 1931-03-03
DE531757C (en) 1931-08-17

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