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EP0091627A3 - Process for cleaning, degreasing and activating metallic surfaces - Google Patents

Process for cleaning, degreasing and activating metallic surfaces Download PDF

Info

Publication number
EP0091627A3
EP0091627A3 EP83103267A EP83103267A EP0091627A3 EP 0091627 A3 EP0091627 A3 EP 0091627A3 EP 83103267 A EP83103267 A EP 83103267A EP 83103267 A EP83103267 A EP 83103267A EP 0091627 A3 EP0091627 A3 EP 0091627A3
Authority
EP
European Patent Office
Prior art keywords
potential
weight
composite parts
solution
degreasing
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Withdrawn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
EP83103267A
Other languages
German (de)
French (fr)
Other versions
EP0091627A2 (en
Inventor
Wolfgang Dr. Morlock
Raschad Mady
Lutz Schellenberg
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.)
Gerhard Collardin GmbH
Original Assignee
Gerhard Collardin GmbH
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 Gerhard Collardin GmbH filed Critical Gerhard Collardin GmbH
Publication of EP0091627A2 publication Critical patent/EP0091627A2/en
Publication of EP0091627A3 publication Critical patent/EP0091627A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/78—Pretreatment of the material to be coated
    • C23C22/80—Pretreatment of the material to be coated with solutions containing titanium or zirconium compounds
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/78—Pretreatment of the material to be coated
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F1/00—Electrolytic cleaning, degreasing, pickling or descaling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Electrochemistry (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Chemical Treatment Of Metals (AREA)

Abstract

Die Erfindung betrifft ein Verfahren zum Reinigen und Entfetten sowie Aktivieren von Verbundteilen aus Eisen oder Stahl und Zink beziehungsweise verzinktem Stahl oder Aluminium beziehungsweise aluminiertem Stahl vor einer nachfolgenden Phosphatierungsbehandlung derselben. Die Verbundteile werden mit wäßrigen Reiniger- und/oder Akti­ vierungslösungen behandelt, die einen pH-Wert im Bereich von 6 bis 13 aufweisen, wobei man gleichzeitig zwischen dem zu behandelnden Verbundteil einerseits und dem Badbehälter und/oder einer im Bad angeordneten Elektrode andererseits ein Gegenpotential anlegt, das mindestens so hoch ist, wie das aufgrund der Spannungsreihe in der betreffenden Lösung sich einstellende Potential. The invention relates to a method for cleaning and Degreasing and activating composite parts made of iron or Steel and zinc or galvanized steel or Aluminum or aluminized steel in front of one subsequent phosphating treatment of the same. The Composite parts are with aqueous cleaner and / or Akti Treatment solutions that have a pH in the range have from 6 to 13, with simultaneous between the composite part to be treated on the one hand and the Bath container and / or an electrode arranged in the bath on the other hand, creates a counter potential that is at least as follows is high, like that due to the voltage series in the potential arising solution.

Vorzugsweise behandelt man die Verbundteile mit einer 0,1- bis 3-gewichtsprozentigen wäßrigen Lösung, die
72,5 Gewichtsprozent Natriumtetraborat × 10 H₂O
18 Gewichtsprozent Natriumdihydrogenorthophosphat und
9,5 Gewichtsprozent eines Additionsproduktes von 10 Mol Ethylenoxid an Nonylphenol
enthält. Vorzugsweise ist das anzulegende Gegenpotential mindestens doppelt so hoch, wie das aufgrund der Span­ nungsreihe in der betreffenden Lösung sich einstellende Potential. The composite parts are preferably treated with a 0.1% to 3% by weight aqueous solution which
72.5 percent by weight sodium tetraborate × 10 H₂O
18% by weight sodium dihydrogen orthophosphate and
9.5 percent by weight of an addition product of 10 moles of ethylene oxide with nonylphenol
contains. The counter potential to be applied is preferably at least twice as high as the potential which arises due to the series of voltages in the solution in question.

EP83103267A 1982-04-14 1983-04-02 Process for cleaning, degreasing and activating metallic surfaces Withdrawn EP0091627A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3213649 1982-04-14
DE19823213649 DE3213649A1 (en) 1982-04-14 1982-04-14 METHOD FOR CLEANING AND GREASING AND ACTIVATING METAL SURFACES

Publications (2)

Publication Number Publication Date
EP0091627A2 EP0091627A2 (en) 1983-10-19
EP0091627A3 true EP0091627A3 (en) 1984-06-06

Family

ID=6160839

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83103267A Withdrawn EP0091627A3 (en) 1982-04-14 1983-04-02 Process for cleaning, degreasing and activating metallic surfaces

Country Status (3)

Country Link
EP (1) EP0091627A3 (en)
JP (1) JPS58189375A (en)
DE (1) DE3213649A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6024381A (en) * 1983-07-19 1985-02-07 Nippon Steel Corp Single-sided galvanized steel sheet with excellent chemical conversion treatment properties and its manufacturing method
FR2572422B1 (en) * 1984-10-31 1993-03-05 Produits Ind Cie Fse IMPROVED ACTIVATION AND REFINING BATH FOR ZINC PHOSPHATATION PROCESS AND CONCENTRATE THEREOF
JPS6247492A (en) * 1985-08-27 1987-03-02 Sumitomo Special Metals Co Ltd Cleaning liquid for metallic sheet
DE3541997A1 (en) * 1985-11-28 1987-06-04 Collardin Gmbh Gerhard IMPROVED METHOD FOR ACTIVATING METAL SURFACES BEFORE ZINC PHOSPHATION
US4746453A (en) * 1986-11-07 1988-05-24 China Steel Corporation Cleaning composition for electrocleaning cold-rolled steel
DE3814287A1 (en) * 1988-04-28 1989-11-09 Henkel Kgaa POLYMERS TITANIUM PHOSPHATES, METHOD FOR THE PRODUCTION THEREOF AND THEIR USE FOR ACTIVATING METAL SURFACES BEFORE ZINC PHOSPHATION
DE4329290C2 (en) * 1993-08-31 1998-04-09 Bosch Gmbh Robert Process for the electrolytic cleaning of metallic parts and its application
BRPI0417176B1 (en) * 2003-12-04 2016-03-08 Nippon Steel & Sumitomo Metal Corp surface conditioning prior to chemical conversion treatment of a steel member
EP4148163A1 (en) * 2021-09-13 2023-03-15 Henkel AG & Co. KGaA Method for cleaning and / or corrosion protection of a plurality of components comprising galvanized (zm) steel
WO2024094845A1 (en) * 2022-11-04 2024-05-10 Chemetall Gmbh Alkaline compositions and method for cleaning zinc-magnesium surfaces

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1116013B (en) * 1955-12-09 1961-10-26 Enthone Electrolyte for the cathodic removal of foreign matter from ferrous metals
DE1170220B (en) * 1958-10-03 1964-05-14 Metallgesellschaft Ag Process for cleaning metal surfaces
US3694334A (en) * 1969-04-10 1972-09-26 Centro Speriment Metallurg Acid pickling of stainless steels
EP0031103A1 (en) * 1979-12-21 1981-07-01 Gerhard Collardin GmbH Method for the pretreatment of metal surfaces prior to phosphatizing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1116013B (en) * 1955-12-09 1961-10-26 Enthone Electrolyte for the cathodic removal of foreign matter from ferrous metals
DE1170220B (en) * 1958-10-03 1964-05-14 Metallgesellschaft Ag Process for cleaning metal surfaces
US3694334A (en) * 1969-04-10 1972-09-26 Centro Speriment Metallurg Acid pickling of stainless steels
EP0031103A1 (en) * 1979-12-21 1981-07-01 Gerhard Collardin GmbH Method for the pretreatment of metal surfaces prior to phosphatizing

Also Published As

Publication number Publication date
EP0091627A2 (en) 1983-10-19
JPS58189375A (en) 1983-11-05
DE3213649A1 (en) 1983-10-27

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE DE FR GB IT NL SE

PUAL Search report despatched

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AK Designated contracting states

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AK Designated contracting states

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STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19850701

RIN1 Information on inventor provided before grant (corrected)

Inventor name: SCHELLENBERG, LUTZ

Inventor name: MADY, RASCHAD

Inventor name: MORLOCK, WOLFGANG, DR.