EP0171043A3 - Passivating process for lead and lead-containing surfaces - Google Patents

Passivating process for lead and lead-containing surfaces Download PDF

Info

Publication number
EP0171043A3
EP0171043A3 EP85109735A EP85109735A EP0171043A3 EP 0171043 A3 EP0171043 A3 EP 0171043A3 EP 85109735 A EP85109735 A EP 85109735A EP 85109735 A EP85109735 A EP 85109735A EP 0171043 A3 EP0171043 A3 EP 0171043A3
Authority
EP
European Patent Office
Prior art keywords
lead
containing surfaces
passivating process
passivating
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.)
Granted
Application number
EP85109735A
Other languages
German (de)
Other versions
EP0171043B1 (en
EP0171043A2 (en
Inventor
Heinz Portz
Reinhard Opitz
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 EP0171043A2 publication Critical patent/EP0171043A2/en
Publication of EP0171043A3 publication Critical patent/EP0171043A3/en
Application granted granted Critical
Publication of EP0171043B1 publication Critical patent/EP0171043B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C23C22/05—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 using aqueous solutions
    • C23C22/06—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 using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/48—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 using aqueous solutions using aqueous acidic solutions with pH less than 6 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
    • C23C22/58—Treatment of other metallic material
    • 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
    • C23C22/05—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 using aqueous solutions
    • C23C22/06—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 using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/07—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 using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates
    • C23C22/08—Orthophosphates
    • 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
    • C23C2222/00—Aspects relating to chemical surface treatment of metallic material by reaction of the surface with a reactive medium
    • C23C2222/10—Use of solutions containing trivalent chromium but free of hexavalent chromium

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
EP85109735A 1984-08-10 1985-08-02 Passivating process for lead and lead-containing surfaces Expired - Lifetime EP0171043B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3429532 1984-08-10
DE19843429532 DE3429532A1 (en) 1984-08-10 1984-08-10 METHOD FOR PASSIVATING LEAD AND LEAD-BASED SURFACES

Publications (3)

Publication Number Publication Date
EP0171043A2 EP0171043A2 (en) 1986-02-12
EP0171043A3 true EP0171043A3 (en) 1988-06-08
EP0171043B1 EP0171043B1 (en) 1991-05-15

Family

ID=6242814

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85109735A Expired - Lifetime EP0171043B1 (en) 1984-08-10 1985-08-02 Passivating process for lead and lead-containing surfaces

Country Status (4)

Country Link
EP (1) EP0171043B1 (en)
JP (1) JPS6148575A (en)
CA (1) CA1261716A (en)
DE (2) DE3429532A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4135524C2 (en) * 1991-10-28 1995-01-26 Gc Galvano Consult Gmbh Method and means for chromating surfaces made of zinc or cadmium or alloys thereof
GB9409811D0 (en) * 1994-05-17 1994-07-06 Imi Yorkshire Fittings Improvements in copper alloy water fittings
JP7399080B2 (en) 2017-05-12 2023-12-15 ケメオン サーフェス テクノロジー， エルエルシー pH stable trivalent chromium coating liquid

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB118182A (en) * 1917-10-04 1918-08-22 Edwin Ebenezer Burnett Depositing Chromium upon Metals, particularly Iron, Chemically.
US3592747A (en) * 1966-08-17 1971-07-13 Samuel L Cohn & Charles C Cohn Method of forming a decorative and protective coating on a surface
DE2031358A1 (en) * 1970-06-25 1971-12-30 Collardin Gmbh Gerhard Protective coatings on iron, zinc or aluminium - formed by treatment with acid solns contg complex fluorides, free fluorine
FR2274706A1 (en) * 1974-06-17 1976-01-09 Lubrizol Corp TREATMENT OF METAL SURFACES WITH TRIVALENT CHROME SOLUTIONS AND PRODUCTS OBTAINED
EP0034040A1 (en) * 1980-02-06 1981-08-19 BNF Metals Technology Centre Method of producing conversion coatings

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2117414B (en) * 1982-03-26 1985-11-13 Usui Kokusai Sangyo Kk Ferrous substrates hot dip coated with lead alloy

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB118182A (en) * 1917-10-04 1918-08-22 Edwin Ebenezer Burnett Depositing Chromium upon Metals, particularly Iron, Chemically.
US3592747A (en) * 1966-08-17 1971-07-13 Samuel L Cohn & Charles C Cohn Method of forming a decorative and protective coating on a surface
DE2031358A1 (en) * 1970-06-25 1971-12-30 Collardin Gmbh Gerhard Protective coatings on iron, zinc or aluminium - formed by treatment with acid solns contg complex fluorides, free fluorine
FR2274706A1 (en) * 1974-06-17 1976-01-09 Lubrizol Corp TREATMENT OF METAL SURFACES WITH TRIVALENT CHROME SOLUTIONS AND PRODUCTS OBTAINED
EP0034040A1 (en) * 1980-02-06 1981-08-19 BNF Metals Technology Centre Method of producing conversion coatings

Also Published As

Publication number Publication date
CA1261716A (en) 1989-09-26
DE3429532A1 (en) 1986-02-20
DE3582833D1 (en) 1991-06-20
JPS6148575A (en) 1986-03-10
EP0171043B1 (en) 1991-05-15
EP0171043A2 (en) 1986-02-12

Similar Documents

Publication Publication Date Title
EP0167905A3 (en) Conductive theromosetting compositions and process for using same
GB2158461B (en) Nickel-chromium-iron-aluminum alloy
ZA859339B (en) Processes and compositions
DE3571633D1 (en) Process and composition for coating metal surfaces
EP0180808A3 (en) Electrical interconnection and method for its fabrication
DE3268937D1 (en) Method for passivating aluminum-based metallizations
DE3565685D1 (en) Organoaluminosiloxane coating compositions and method for its preparation
DE3570003D1 (en) Chip resistors and forming method
GB2161181B (en) Tantalum-columbium-molybdenum-tungsten alloy
EP0171043A3 (en) Passivating process for lead and lead-containing surfaces
GB2160562B (en) Ground-freezing method
EP0184455A3 (en) Bonding method
GB2184013B (en) Anthelminthic composition and method for its production
GB2167693B (en) Cutting and straightening component lead wires
IL76104A0 (en) Compositions and method for improving the efficiency of ruminant feed utilization
GB8706104D0 (en) Freeing of parts held fast together
ZA856420B (en) Coating composition and method
CS191087A1 (en) Aluminium-base alloy
GB2167449B (en) Passivation
BG50210A1 (en) Waterworking method
BG47454A1 (en) Thermoaccumulating nozzle and method for its manufacture
GB8414524D0 (en) Composition and method
GB8406038D0 (en) Composition and method
ZA854626B (en) Coating composition and method
PL251252A1 (en) Lead alloy

Legal Events

Date Code Title Description
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): BE DE FR GB IT SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

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

17P Request for examination filed

Effective date: 19881130

17Q First examination report despatched

Effective date: 19900208

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE

REF Corresponds to:

Ref document number: 3582833

Country of ref document: DE

Date of ref document: 19910620

EN Fr: translation not filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19920801

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19920918

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19930831

BERE Be: lapsed

Owner name: GERHARD COLLARDIN G.M.B.H.

Effective date: 19930831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19940503