EP0137540A3 - Process for the electrolytic zinc plating of steel - Google Patents

Process for the electrolytic zinc plating of steel Download PDF

Info

Publication number
EP0137540A3
EP0137540A3 EP84201280A EP84201280A EP0137540A3 EP 0137540 A3 EP0137540 A3 EP 0137540A3 EP 84201280 A EP84201280 A EP 84201280A EP 84201280 A EP84201280 A EP 84201280A EP 0137540 A3 EP0137540 A3 EP 0137540A3
Authority
EP
European Patent Office
Prior art keywords
acids
acid
steel
oxygenic
zinc
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.)
Withdrawn
Application number
EP84201280A
Other languages
German (de)
French (fr)
Other versions
EP0137540A2 (en
Inventor
Werner Dr. Rausch
Gerhard Müller
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.)
GEA Group AG
Original Assignee
Metallgesellschaft 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 Metallgesellschaft AG filed Critical Metallgesellschaft AG
Publication of EP0137540A2 publication Critical patent/EP0137540A2/en
Publication of EP0137540A3 publication Critical patent/EP0137540A3/en
Withdrawn legal-status Critical Current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
    • C25D3/22—Electroplating: Baths therefor from solutions of zinc

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)
  • Electroplating Methods And Accessories (AREA)
  • Chemical Treatment Of Metals (AREA)

Abstract

Bei einem Verfahren zur elektrolytischen Verzinkung von Stahl werden schwefelsaure wäßrige Zinkelektrolyte ver­ wendet, die durch einen Gehalt von ein oder mehreren Sauerstoffsäuren des Schwefels mit der Oxidationszahl von +5 bis +1 gekennzeichnet sind. Derartig erzeugte Zinküber­ züge ergeben bei dser anschließenden Zinkphosphatierung gleichmäßige stippenfreie Phosphatschichten. Als geeignete Sauerstoffsäuren sind schweflige Säure (H₂SO₃), Sulfoxylsä­ ure (H₂SO₂), dithionige Säure (H₂S₂O₄) und/oder Thioschwe­ felsäure (H₂S₂O₃) in Form der Säuren, Salze und Säurean­ hydride gennant. Die Konzentration der Sauerstoffsäuren im Elektrolyten sollte 0,05 bis 10 g/l, vorzugsweise 0,1 bis 2 g/l, betragen. In a process for the electrolytic galvanizing of Steel, sulfuric acid aqueous zinc electrolytes are used applies by a salary of one or more Oxygenic acids of sulfur with an oxidation number of +5 to +1 are marked. Zinc over produced in this way trains result in the subsequent zinc phosphating even speck-free phosphate layers. As suitable Oxygenic acids are sulfurous acid (H₂SO₃), sulfoxyl acid ure (H₂SO₂), dithionic acid (H₂S₂O₄) and / or thioschwe rock acid (H₂S₂O₃) in the form of acids, salts and acids hydride called. The concentration of oxygen acids in the Electrolytes should 0.05 to 10 g / l, preferably 0.1 to 2 g / l, be.

EP84201280A 1983-09-28 1984-09-07 Process for the electrolytic zinc plating of steel Withdrawn EP0137540A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3335009 1983-09-28
DE19833335009 DE3335009A1 (en) 1983-09-28 1983-09-28 METHOD FOR ELECTROLYTIC GALVANIZING STEEL

Publications (2)

Publication Number Publication Date
EP0137540A2 EP0137540A2 (en) 1985-04-17
EP0137540A3 true EP0137540A3 (en) 1987-05-27

Family

ID=6210222

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84201280A Withdrawn EP0137540A3 (en) 1983-09-28 1984-09-07 Process for the electrolytic zinc plating of steel

Country Status (5)

Country Link
US (1) US4547269A (en)
EP (1) EP0137540A3 (en)
JP (1) JPS6092495A (en)
DE (1) DE3335009A1 (en)
ES (1) ES8605872A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4663000A (en) * 1985-07-25 1987-05-05 Kollmorgan Technologies, Corp. Process for electro-deposition of a ductile strongly adhesive zinc coating for metals
IL75974A0 (en) * 1984-08-16 1985-12-31 Kollmorgen Tech Corp Electrodeposition composition and process for providing a zn/si/p coating on metal substrates
JPS6360290A (en) * 1986-09-01 1988-03-16 Nippon Parkerizing Co Ltd Blackening solution for aluminum or its alloy
WO2004109004A1 (en) * 2003-06-05 2004-12-16 Lg Electronics Inc. Drum for washer and dryer

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1380142A (en) * 1919-11-17 1921-05-31 Eastern Mfg Company Plating-bath
US1607869A (en) * 1925-06-01 1926-11-23 Us Smelting Refining & Mining Electrolytic refining of metals
US3637475A (en) * 1968-09-23 1972-01-25 Mini Ind Constructillor Zinc-plating bath for bright or glossy coating
US3850766A (en) * 1974-03-28 1974-11-26 Sterwin Chem Inc Electroplating brightener compositions and process
SU905335A1 (en) * 1980-03-03 1982-02-15 За витель Кравцов, Л. Г. Осацкий, В. И. Фоменко, П. В, Топстов, Т. С. Кондратенко и Р. К. Умбвталивва Zink plating electrolyte solution

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1017981A (en) * 1911-05-29 1912-02-20 Auguste Arsene Lemetre Electroplating with zinc.
US3713092A (en) * 1970-10-23 1973-01-23 B Ivenbaum Air pressure balanced self-contained tire pressure condition signal transmitter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1380142A (en) * 1919-11-17 1921-05-31 Eastern Mfg Company Plating-bath
US1607869A (en) * 1925-06-01 1926-11-23 Us Smelting Refining & Mining Electrolytic refining of metals
US3637475A (en) * 1968-09-23 1972-01-25 Mini Ind Constructillor Zinc-plating bath for bright or glossy coating
US3850766A (en) * 1974-03-28 1974-11-26 Sterwin Chem Inc Electroplating brightener compositions and process
SU905335A1 (en) * 1980-03-03 1982-02-15 За витель Кравцов, Л. Г. Осацкий, В. И. Фоменко, П. В, Топстов, Т. С. Кондратенко и Р. К. Умбвталивва Zink plating electrolyte solution

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
H.W. DETTNER et al.: "Handbuch der Galvanotechnik", Band II, Seiten 293-294, Carl Hanser Verlag, M}nchen, DE; *
METAL FINISHING ABSTRACTS, Band 24, Nr. 4, Juli/August 1982, Seite 242, Teddington, Middlesex, GB; & SU-A-905 335 (E.E. KRAVTSOV et al.) *
THE ELECTROCHEMICAL SOCIETY, Band 80, 1941, Seiten 387-398; E.H. LYONS JR.: "Acid zinc plating" *

Also Published As

Publication number Publication date
JPS6092495A (en) 1985-05-24
ES535855A0 (en) 1985-12-16
EP0137540A2 (en) 1985-04-17
US4547269A (en) 1985-10-15
DE3335009A1 (en) 1985-04-18
ES8605872A1 (en) 1985-12-16

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Inventor name: RAUSCH, WERNER, DR.

Inventor name: MUELLER, GERHARD