EP0723037A1 - Procédé de fabrication d'un tuyau d'installation en cuivre - Google Patents

Procédé de fabrication d'un tuyau d'installation en cuivre Download PDF

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Publication number
EP0723037A1
EP0723037A1 EP96100191A EP96100191A EP0723037A1 EP 0723037 A1 EP0723037 A1 EP 0723037A1 EP 96100191 A EP96100191 A EP 96100191A EP 96100191 A EP96100191 A EP 96100191A EP 0723037 A1 EP0723037 A1 EP 0723037A1
Authority
EP
European Patent Office
Prior art keywords
copper
copper pipe
pipe
drinking water
installation pipe
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
EP96100191A
Other languages
German (de)
English (en)
Other versions
EP0723037B1 (fr
Inventor
Ulrich Dr. Reiter
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.)
KM Europa Metal AG
Original Assignee
KM Europa Metal 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 KM Europa Metal AG filed Critical KM Europa Metal AG
Publication of EP0723037A1 publication Critical patent/EP0723037A1/fr
Application granted granted Critical
Publication of EP0723037B1 publication Critical patent/EP0723037B1/fr
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
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/31—Coating with metals

Definitions

  • the invention relates to a method for producing an installation pipe made of copper with a tinned inner surface. Furthermore, the invention relates to the preferred use of the copper pipe produced by this method as an installation pipe with reduced release of copper ions to drinking water with a pH below 6.5.
  • a manufacturing method known from US Pat. No. 4,838,063 assumes first coating the inner surface of a copper tube with powdered pure tin and then subjecting the coating to a subsequent diffusion annealing. This creates a copper / tin alloy layer with a thickness of about 30 ⁇ m on the inner surface of the copper tube, the copper content of which is over 80%.
  • the invention is therefore based on the object of providing an installation pipe made of copper with a tin coating on the inner surface, in which the release of copper ions to the drinking water remains below the required limit values even in the long term.
  • An installation pipe which consists, for example, of copper deoxidized with phosphorus and which is preferably rolled up in coils of at least 500 m in length, is first chemically tinned as the starting material.
  • the final deformation by at least 2% to the final dimension of the installation pipe surprisingly leads to a densification of the tin layer, with any remaining pores being closed after the coating.

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)
  • Chemically Coating (AREA)
  • Metal Extraction Processes (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • ing And Chemical Polishing (AREA)
  • Domestic Plumbing Installations (AREA)
  • Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
  • Electroplating Methods And Accessories (AREA)
EP96100191A 1995-01-18 1996-01-09 Procédé de fabrication d'un tuyau d'installation en cuivre Expired - Lifetime EP0723037B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19501274 1995-01-18
DE19501274A DE19501274A1 (de) 1995-01-18 1995-01-18 Verfahren zur Herstellung eines Installationsrohrs aus Kupfer

Publications (2)

Publication Number Publication Date
EP0723037A1 true EP0723037A1 (fr) 1996-07-24
EP0723037B1 EP0723037B1 (fr) 1999-04-07

Family

ID=7751689

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96100191A Expired - Lifetime EP0723037B1 (fr) 1995-01-18 1996-01-09 Procédé de fabrication d'un tuyau d'installation en cuivre

Country Status (5)

Country Link
EP (1) EP0723037B1 (fr)
AT (1) ATE178661T1 (fr)
DE (2) DE19501274A1 (fr)
ES (1) ES2130699T3 (fr)
FI (1) FI118050B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999037831A1 (fr) * 1998-01-22 1999-07-29 Halcor S.A. Metal Works Procede de fabrication de tubes de cuivre a surface interieure etamee par electrolyse
EP0979688A1 (fr) * 1998-07-08 2000-02-16 MKM Mansfelder Kupfer und Messing GmbH Procédé de fabrication de tubes de cuivre

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19915574A1 (de) * 1999-03-30 2000-10-12 Sms Demag Ag Verfahren zur Herstellung des innen- und/oder außen verzinnten Hohlprofiles sowie innenverzinntes Kupferrohr
FI120268B (fi) * 2003-12-12 2009-08-31 Cupori Group Oy Menetelmä putken pinnoittamiseksi

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2282511A (en) * 1940-03-20 1942-05-12 American Brass Co Coating cupreous surfaces with tin

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2282511A (en) * 1940-03-20 1942-05-12 American Brass Co Coating cupreous surfaces with tin

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NARANG: "aussenstromlose tauchabscheidung von zinn und seinen legierungen", GALVANOTECHNIK, vol. 70, no. 5, DE, pages 404 - 411, XP000566368 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999037831A1 (fr) * 1998-01-22 1999-07-29 Halcor S.A. Metal Works Procede de fabrication de tubes de cuivre a surface interieure etamee par electrolyse
GR980100036A (el) * 1998-01-22 1999-09-30 Μεθοδος κατασκευης σωληνα εγκαταστασης απο χαλκο με εσωτερικη επιφανεια επικασσιτερωμενη δια ηλεκτρολυσεως
EP0979688A1 (fr) * 1998-07-08 2000-02-16 MKM Mansfelder Kupfer und Messing GmbH Procédé de fabrication de tubes de cuivre

Also Published As

Publication number Publication date
FI960222A0 (fi) 1996-01-17
DE59601571D1 (de) 1999-05-12
ES2130699T3 (es) 1999-07-01
FI118050B (fi) 2007-06-15
EP0723037B1 (fr) 1999-04-07
ATE178661T1 (de) 1999-04-15
FI960222A (fi) 1996-07-19
DE19501274A1 (de) 1996-07-25

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