GB284900A - Improvements in process of electro-depositing chromium - Google Patents

Improvements in process of electro-depositing chromium

Info

Publication number
GB284900A
GB284900A GB1164927A GB1164927A GB284900A GB 284900 A GB284900 A GB 284900A GB 1164927 A GB1164927 A GB 1164927A GB 1164927 A GB1164927 A GB 1164927A GB 284900 A GB284900 A GB 284900A
Authority
GB
United Kingdom
Prior art keywords
per cent
chromium
sodium
bath
plating
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
GB1164927A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1164927A priority Critical patent/GB284900A/en
Publication of GB284900A publication Critical patent/GB284900A/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
    • C25D3/04—Electroplating: Baths therefor from solutions of chromium

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)
  • Electroplating And Plating Baths Therefor (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

284,900. Eaton, W. S. May 2, 1927. Chromium, depositing; metals, removing; metals, pickling; preparing surfaces.-Chromium is deposited from a bath containing chromic acid and an alkaline content consisting mainly of sodium hydroxide. A suitable alkaline content consists of sodium hydroxide 94 per cent, sodium sulphate 2 per cent, sodium carbonate 2 per cent, and sodium chloride and impurities 2 per cent; one ounce of the alkali material in a dry state is added to 1 gallon of water and one pound of chromic acid crystals. The cathode is cleaned before plating by immersion in an alkaline bath while connected to a carbon plate, graphite rod or an iron member to form a couple. It is then rinsed and immersed in the plating bath while still wet. The plating temperature may be 110‹-130‹ F., the voltage 5-10 and the current density 1-2 amps. per sq. inch. The chromium surface may be removed by connecting the article as anode.
GB1164927A 1927-05-02 1927-05-02 Improvements in process of electro-depositing chromium Expired GB284900A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1164927A GB284900A (en) 1927-05-02 1927-05-02 Improvements in process of electro-depositing chromium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1164927A GB284900A (en) 1927-05-02 1927-05-02 Improvements in process of electro-depositing chromium

Publications (1)

Publication Number Publication Date
GB284900A true GB284900A (en) 1928-02-09

Family

ID=9990129

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1164927A Expired GB284900A (en) 1927-05-02 1927-05-02 Improvements in process of electro-depositing chromium

Country Status (1)

Country Link
GB (1) GB284900A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2357664A1 (en) * 1976-07-06 1978-02-03 Iosso Richard WEAR RESISTANT ZINC OBJECTS AND THEIR MANUFACTURING PROCESS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2357664A1 (en) * 1976-07-06 1978-02-03 Iosso Richard WEAR RESISTANT ZINC OBJECTS AND THEIR MANUFACTURING PROCESS

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