BR9907916A - Process of chemical treatment by electrolytic phosphate to form a film, and, film composed on a steel surface - Google Patents

Process of chemical treatment by electrolytic phosphate to form a film, and, film composed on a steel surface

Info

Publication number
BR9907916A
BR9907916A BR9907916-0A BR9907916A BR9907916A BR 9907916 A BR9907916 A BR 9907916A BR 9907916 A BR9907916 A BR 9907916A BR 9907916 A BR9907916 A BR 9907916A
Authority
BR
Brazil
Prior art keywords
phosphate
film
bath
metal ion
steel surface
Prior art date
Application number
BR9907916-0A
Other languages
Portuguese (pt)
Other versions
BR9907916B1 (en
Inventor
Shigeki Matsuda
Shin Nishiya
Original Assignee
Denso Corp
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 Denso Corp filed Critical Denso Corp
Publication of BR9907916A publication Critical patent/BR9907916A/en
Publication of BR9907916B1 publication Critical patent/BR9907916B1/en

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
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/36—Phosphatising

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Treatment Of Metals (AREA)

Abstract

"PROCESSO DE TRATAMENTO QUìMICO POR FOSFATO ELETROLìTICO PARA FORMAR UMA PELìCULA E PELìCULA COMPOSTA SOBRE UMA SUPERFìCIE DE AçO". Um processo de fosfatagem adequado para tratamento eletrolítico, que utiliza um banho de fosfatagem compreendendo um íon de fosfato e ácido fosfórico, ácido nítrico, um íon metálico capaz de formar um complexo com o íon fosfato no banho de fosfatagem e um íon metálico tendo um potencial elétrico em que o íon metálico dissolvido no banho de fosfatagem é reduzido e depositado como metal de um mesmo valor que ou mais elevado do que aquele da reação de eletrólise anódica da água, o solvente usado no banho, em que o banho contém um íon metálico que não um componente de um revestimento a ser formado em uma quantidade de 0 a 400 ppm e é substancialmente livre de sólidos afetando uma reação formadora de película de revestimento."PROCESS OF CHEMICAL TREATMENT BY ELECTROLYTIC PHOSPHATE TO FORM A FILM AND COMPOUND FILM ON A STEEL SURFACE". A phosphating process suitable for electrolytic treatment, which uses a phosphating bath comprising a phosphate ion and phosphoric acid, nitric acid, a metal ion capable of forming a complex with the phosphate ion in the phosphate bath and a metal ion having a potential electric in which the metal ion dissolved in the phosphate bath is reduced and deposited as a metal of the same or higher value than that of the anodic electrolysis reaction of water, the solvent used in the bath, in which the bath contains a metal ion other than a coating component to be formed in an amount of 0 to 400 ppm and is substantially free of solids affecting a coating film forming reaction.

BRPI9907916-0A 1998-12-17 1999-12-17 electrolytic phosphate chemical treatment process to form a film, and a composite film on a steel surface. BR9907916B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP35925498 1998-12-17
JP10/359254 1998-12-17
PCT/JP1999/007124 WO2000036191A1 (en) 1998-12-17 1999-12-17 Electrolytic phosphating process and composite coating formed on steel surface

Publications (2)

Publication Number Publication Date
BR9907916A true BR9907916A (en) 2002-04-30
BR9907916B1 BR9907916B1 (en) 2011-07-26

Family

ID=18463558

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI9907916-0A BR9907916B1 (en) 1998-12-17 1999-12-17 electrolytic phosphate chemical treatment process to form a film, and a composite film on a steel surface.

Country Status (6)

Country Link
EP (1) EP1074640A4 (en)
KR (1) KR100400522B1 (en)
CN (1) CN1221687C (en)
BR (1) BR9907916B1 (en)
CA (1) CA2320865C (en)
WO (1) WO2000036191A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3479609B2 (en) * 1999-03-02 2003-12-15 日本パーカライジング株式会社 Sludge-free zinc phosphate treatment liquid and zinc phosphate treatment method
JP4019723B2 (en) * 2001-02-23 2007-12-12 株式会社デンソー Electrolytic phosphate chemical treatment method
US20080011613A1 (en) * 2004-07-21 2008-01-17 Rizhi Wang Method of electrolytically depositing a pharmaceutical coating onto a conductive osteal implant
DE102005023023B4 (en) * 2005-05-19 2017-02-09 Chemetall Gmbh Method of preparing metallic workpieces for cold forming, process coated workpieces and their use
EP2186928A1 (en) * 2008-11-14 2010-05-19 Enthone, Inc. Method for the post-treatment of metal layers
CN113073371A (en) * 2021-03-22 2021-07-06 领润(南京)绿色化学有限公司 Clean anode plate friendly electrolytic phosphating solution and phosphating process thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4111186A1 (en) * 1991-04-06 1992-10-08 Henkel Kgaa METHOD FOR PHOSPHATING METAL SURFACES
JPH05306497A (en) * 1992-04-30 1993-11-19 Nippondenso Co Ltd Phophatizing chemical conversion treatment

Also Published As

Publication number Publication date
EP1074640A1 (en) 2001-02-07
EP1074640A4 (en) 2006-06-21
KR20010040816A (en) 2001-05-15
KR100400522B1 (en) 2003-10-10
BR9907916B1 (en) 2011-07-26
WO2000036191A1 (en) 2000-06-22
CA2320865A1 (en) 2000-06-22
CN1293720A (en) 2001-05-02
CA2320865C (en) 2010-03-16
CN1221687C (en) 2005-10-05

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Legal Events

Date Code Title Description
B06A Notification to applicant to reply to the report for non-patentability or inadequacy of the application [chapter 6.1 patent gazette]
B06A Notification to applicant to reply to the report for non-patentability or inadequacy of the application [chapter 6.1 patent gazette]
B07A Technical examination (opinion): publication of technical examination (opinion) [chapter 7.1 patent gazette]
B06A Notification to applicant to reply to the report for non-patentability or inadequacy of the application [chapter 6.1 patent gazette]
B06A Notification to applicant to reply to the report for non-patentability or inadequacy of the application [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 26/07/2011, OBSERVADAS AS CONDICOES LEGAIS.

B21A Expiry acc. art. 78, item i of ipl- expiry of the term of protection

Free format text: PATENTE EXTINTA EM 26.07.2021