DE69839588D1 - Verfahren zum reduzieren der freisetzung von blei in bleihaltigen kupferlegierungen für trinkwasserverteilung - Google Patents

Verfahren zum reduzieren der freisetzung von blei in bleihaltigen kupferlegierungen für trinkwasserverteilung

Info

Publication number
DE69839588D1
DE69839588D1 DE69839588T DE69839588T DE69839588D1 DE 69839588 D1 DE69839588 D1 DE 69839588D1 DE 69839588 T DE69839588 T DE 69839588T DE 69839588 T DE69839588 T DE 69839588T DE 69839588 D1 DE69839588 D1 DE 69839588D1
Authority
DE
Germany
Prior art keywords
release
lead
reducing
drinking water
water distribution
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 - Lifetime
Application number
DE69839588T
Other languages
English (en)
Inventor
Masashi Kawamoto
Akira Gotou
Mituo Imamoto
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.)
Toto Ltd
Original Assignee
Toto Ltd
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26531729&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69839588(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Toto Ltd filed Critical Toto Ltd
Application granted granted Critical
Publication of DE69839588D1 publication Critical patent/DE69839588D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B7/00—Water main or service pipe systems
    • E03B7/006—Arrangements or methods for cleaning or refurbishing water conduits
    • 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
    • C23C22/24—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 hexavalent chromium 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
    • C23C22/05—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
    • C23C22/24—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 hexavalent chromium compounds
    • C23C22/33—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 hexavalent chromium compounds containing also phosphates
    • 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
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F1/00—Etching metallic material by chemical means
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/10—Electroplating with more than one layer of the same or of different metals
    • C25D5/12—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium
    • C25D5/14—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium two or more layers being of nickel or chromium, e.g. duplex or triplex layers
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/34—Pretreatment of metallic surfaces to be electroplated
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49428—Gas and water specific plumbing component making
    • Y10T29/4943—Plumbing fixture making
DE69839588T 1997-12-03 1998-12-02 Verfahren zum reduzieren der freisetzung von blei in bleihaltigen kupferlegierungen für trinkwasserverteilung Expired - Lifetime DE69839588D1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP33336197 1997-12-03
JP10234728 1998-08-20
PCT/JP1998/005429 WO1999028536A1 (fr) 1997-12-03 1998-12-02 Procede attenuant l'elution du plomb des alliages de cuivre contenant du plomb, et accessoires de distribution d'eau de ville faits en alliage de cuivre contenant du plomb

Publications (1)

Publication Number Publication Date
DE69839588D1 true DE69839588D1 (de) 2008-07-17

Family

ID=26531729

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69839588T Expired - Lifetime DE69839588D1 (de) 1997-12-03 1998-12-02 Verfahren zum reduzieren der freisetzung von blei in bleihaltigen kupferlegierungen für trinkwasserverteilung

Country Status (7)

Country Link
US (2) US6656294B1 (de)
EP (1) EP1038990B1 (de)
JP (1) JP3182765B2 (de)
CN (1) CN1207442C (de)
AU (1) AU1350399A (de)
DE (1) DE69839588D1 (de)
WO (1) WO1999028536A1 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6830629B2 (en) * 2000-08-31 2004-12-14 The Ford Meter Box Company, Inc. Method for treating brass
JP3866198B2 (ja) * 2000-10-31 2007-01-10 株式会社Ｉｎａｘ 筒状部をもつ鉛含有銅合金製のめっき製品の鉛除去方法及び水栓金具並びに鉛含有銅合金製品の鉛浸出防止方法及び水栓金具
JP4872118B2 (ja) * 2001-03-27 2012-02-08 Ｔｏｔｏ株式会社 水道用器具
WO2004024987A1 (ja) * 2002-08-30 2004-03-25 Toto Ltd. 鉛含有銅合金の鉛溶出低減処理方法及び鉛含有銅合金製水道用器具
JP4197269B2 (ja) * 2002-09-09 2008-12-17 株式会社キッツ バルブ・管継手等の銅合金製配管器材のニッケル溶出防止法及びその銅合金製配管器材
JP4430879B2 (ja) * 2003-03-14 2010-03-10 株式会社Ｉｎａｘ 鉛含有銅合金製水道用器具の製造方法、水道用器具の鋳造脱鉛品及び水道用器具
WO2005085500A1 (ja) * 2004-03-05 2005-09-15 Kitz Corporation 銅合金製接液器材のニッケル溶出防止方法及びニッケル溶出防止用保護膜形成剤並びにニッケル溶出防止用洗浄剤
WO2006035695A1 (ja) * 2004-09-28 2006-04-06 Hayakawa Valve Production Co., Ltd. 六価クロムフリー表面処理方法及び六価クロムフリー鉛含有銅系金属材
JP4661206B2 (ja) * 2004-12-17 2011-03-30 東ソー株式会社 半導体基板洗浄液
AU2006316359A1 (en) * 2005-11-28 2007-05-31 Beneq Oy Method for preventing metal leaching from copper and its alloys
JP2007308779A (ja) * 2006-05-22 2007-11-29 Toto Ltd めっき前処理法及び鉛含有銅合金製水道用器具
EP2309030B1 (de) * 2009-09-25 2012-03-28 Gruppo Cimbali S.p.A. Verfahren zur Verringerung der Bleimenge, die von Wassersystemkomponenten aus Bronze und/oder Messing in Flüssigkeiten abgegeben wird, die für den menschlichen Verzehr bestimmt sind
IT1395929B1 (it) * 2009-09-25 2012-11-02 Gruppo Cimbali Spa Procedimento per la riduzione del quantitativo di piombo, rilasciato da componenti idraulici in bronzo e/o in ottone in liquidi destinati al consumo umano.
CA2807637C (en) 2010-08-24 2018-09-11 Tomoyuki Ozasa Method for preventing elution of bi from copper alloy
JP6596876B2 (ja) * 2015-03-31 2019-10-30 Ｔｏｔｏ株式会社 鉛およびニッケル溶出が抑制された水道用器具の製造方法
CN114277383A (zh) * 2021-12-24 2022-04-05 南通恒昌通讯设备有限公司 一种耐腐蚀的铜合金表面处理方法

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2494909A (en) * 1947-02-28 1950-01-17 American Chem Paint Co Method of coating copper, brass, terneplate, magnesium, zinciferous and ferriferous metals
US3514343A (en) * 1966-12-13 1970-05-26 Lubrizol Corp Regeneration of chromate conversion coating solutions
JPS50148253A (de) * 1974-05-11 1975-11-27
JPS5352252A (en) * 1976-10-25 1978-05-12 Nippon Soda Co Method of chemically treating surface of copper based alloy
JPS6011112B2 (ja) 1977-03-01 1985-03-23 新日本製鐵株式会社 鋼板への酸化珪素の付着を防止する洗浄浴
US4687545A (en) * 1986-06-18 1987-08-18 Macdermid, Incorporated Process for stripping tin or tin-lead alloy from copper
JPS648278A (en) * 1987-06-29 1989-01-12 Mitsui Mining & Smelting Co Chromate treatment
JPH02274900A (ja) 1989-04-15 1990-11-09 Toto Ltd 重金属の除去方法
JP2720116B2 (ja) 1991-05-29 1998-02-25 荏原ユージライト 株式会社 銅または銅合金からなる材料の電解エッチング液
JPH0711481A (ja) 1993-06-29 1995-01-13 Fuji Electric Co Ltd 鉛入り銅合金用のめっき前処理液
GB9409811D0 (en) * 1994-05-17 1994-07-06 Imi Yorkshire Fittings Improvements in copper alloy water fittings
US5544859A (en) * 1994-06-03 1996-08-13 Hazen Research, Inc. Apparatus and method for inhibiting the leaching of lead in water
US5454876A (en) * 1994-08-02 1995-10-03 21St Century Companies, Inc. Process for reducing lead leachate in brass plumbing components
US5601658A (en) 1995-06-30 1997-02-11 Purdue Research Foundation Method of treating lead-containing surfaces to passivate the surface lead
EP0842332B1 (de) * 1995-08-03 2001-05-23 EUROPA METALLI S.p.A. Komponente aus bleienthaltenden kupferlegierungen mit niedriger bleiauslaugung und verfahren zur herstellung
JPH1072683A (ja) * 1996-08-30 1998-03-17 Toto Ltd 鉛含有銅合金製の水栓金具の鉛溶出防止処理方法
US5958257A (en) * 1997-01-07 1999-09-28 Gerber Plumbing Fixtures Corp. Process for treating brass components to reduce leachable lead
US5879532A (en) * 1997-07-09 1999-03-09 Masco Corporation Of Indiana Process for applying protective and decorative coating on an article

Also Published As

Publication number Publication date
EP1038990A1 (de) 2000-09-27
WO1999028536A1 (fr) 1999-06-10
US6656294B1 (en) 2003-12-02
AU1350399A (en) 1999-06-16
CN1207442C (zh) 2005-06-22
CN1284137A (zh) 2001-02-14
EP1038990B1 (de) 2008-06-04
EP1038990A4 (de) 2003-10-01
JP3182765B2 (ja) 2001-07-03
US20020170632A1 (en) 2002-11-21

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