ES2144475T3 - PROCEDURE FOR THE MANUFACTURE OF TUBES FOR SEAMLESS, SEMIDID / HARD STRETCH FACILITIES. - Google Patents

PROCEDURE FOR THE MANUFACTURE OF TUBES FOR SEAMLESS, SEMIDID / HARD STRETCH FACILITIES.

Info

Publication number
ES2144475T3
ES2144475T3 ES94114354T ES94114354T ES2144475T3 ES 2144475 T3 ES2144475 T3 ES 2144475T3 ES 94114354 T ES94114354 T ES 94114354T ES 94114354 T ES94114354 T ES 94114354T ES 2144475 T3 ES2144475 T3 ES 2144475T3
Authority
ES
Spain
Prior art keywords
tubes
procedure
hardening
semi
drinking water
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
ES94114354T
Other languages
Spanish (es)
Inventor
Christian Dipl-Ing Triquet
Ulrich Fliegner
Jorg Dipl-Ing Matussek
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
Application granted granted Critical
Publication of ES2144475T3 publication Critical patent/ES2144475T3/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00—Abrasive blasting machines or devices; Plants
    • B24C3/32—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks
    • B24C3/325—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks for internal surfaces, e.g. of tubes
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/02—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working in inert or controlled atmosphere or vacuum
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

EN ESTE PROCEDIMIENTO SE CONFORMAN EN FRIO PRIMERO A PARTIR DE BARRAS FUNDIDAS TUBOS PREVIOS CONFORMADOS EN CALIENTE A BASE DE COBRE POR MEDIO DE EMBUTICION SOBRE UNA DIMENSION INTERMEDIA. PARA ELLO SE TRATA CON CHORRO DE ARENA LA SUPERFICIE INTERIOR DE ESTE TUBO INTERMEDIO Y A CONTINUACION EL TUBO INTERMEDIO TRATADO SE LLEVA A UNA TEMPERATURA DESDE 350 CCION QUE CONTIENE OXIGENO. A CONTINUACION LOS TUBOS INTERMEDIOS SE SOMETEN A EMBUTICION DE ENDURECIMIENTO EN UN PROCESO DE ENDURECIDO/SEMI ENDURECIDO, EN DONDE TIENE LUGAR UN TRATAMIENTO TERMICO CON UNA TEMPERATURA DESDE 175 APLICACION DE UNA MEZCLA DE GAS QUE CONTIENE OXIGENO EN EL INTERIOR DEL TUBO. POR MEDIO DE ESTE PROCEDIMIENTO DE FABRICACION SE REDUCE ESENCIALMENTE EL SUMINISTRO DE IONES DE COBRE A PARTIR DE LOS TUBOS DE INSTALACION EN FORMA DE BARRAS DE SF-CU ENDURECIDA/SEMI ENDURECIDA UTILIZADOS PARA EL ABASTECIMIENTO DE AGUA POTABLE CENTRAL POR MEDIO DE UNA RESISTENCIA QUE PERMANECE COMO PROTECCION CONTRA CORROSION SUPERFICIAL. LAMAXIMA SOLUBILIDAD DE IONES DE COBRE EN EL AGUA POTABLE SE ENCUENTRA APROXIMADAMENTE EN 1 MG/L CON UN VALOR DE PH EN LA ZONA DESDE 6,5 HASTA 9,0.IN THIS PROCEDURE FIRST COLD IS MADE FROM CAST BARS PREVIOUS PIPES MADE IN HOT COPPER BASED BY EMBUTITION ON AN INTERMEDIATE DIMENSION. FOR THIS, THE INTERIOR SURFACE OF THIS INTERMEDIATE TUBE IS TREATED WITH A SAND BLAST AND THEN THE TREATED INTERMEDIATE TUBE IS TAKEN AT A TEMPERATURE FROM 350 CTION CONTAINING OXYGEN. THEN THE INTERMEDIATE TUBES ARE SUBJECT TO HARDENING STUFFING IN A HARDENING / SEMI-HARDENING PROCESS, WHERE A HEAT TREATMENT WITH A TEMPERATURE FROM 175 GAS MIXTURE CONTAINING OXYGEN IN THE INTERIOR TAKES PLACE. THROUGH THIS MANUFACTURING PROCEDURE THE SUPPLY OF COPPER IONS IS REDUCED ESSENTIALLY FROM THE HARDENED / SEMI-HARDENED INSTALLATION TUBES IN THE FORM OF SF-CU BARS USED FOR THE SUPPLY OF CENTRAL DRINKING WATER AS PROTECTION AGAINST SURFACE CORROSION. THE LOW MAXIMUM SOLUTION OF COPPER IONS IN DRINKING WATER IS APPROXIMATELY 1 MG / L WITH A PH VALUE IN THE AREA FROM 6.5 TO 9.0.

ES94114354T 1993-10-09 1994-09-13 PROCEDURE FOR THE MANUFACTURE OF TUBES FOR SEAMLESS, SEMIDID / HARD STRETCH FACILITIES. Expired - Lifetime ES2144475T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19934334536 DE4334536A1 (en) 1993-10-09 1993-10-09 Process for the production of seamless drawn semi-hard / hard installation pipes

Publications (1)

Publication Number Publication Date
ES2144475T3 true ES2144475T3 (en) 2000-06-16

Family

ID=6499828

Family Applications (1)

Application Number Title Priority Date Filing Date
ES94114354T Expired - Lifetime ES2144475T3 (en) 1993-10-09 1994-09-13 PROCEDURE FOR THE MANUFACTURE OF TUBES FOR SEAMLESS, SEMIDID / HARD STRETCH FACILITIES.

Country Status (4)

Country Link
EP (1) EP0647723B1 (en)
DE (2) DE4334536A1 (en)
DK (1) DK0647723T3 (en)
ES (1) ES2144475T3 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19533410B4 (en) * 1995-09-09 2005-11-24 Km Europa Metal Ag Method for producing a protective layer on the inner surface of a copper pipe and use of drawing agents
DE19819925A1 (en) * 1998-05-05 1999-11-11 Km Europa Metal Ag Process for creating a protective layer on the inner surface of a copper pipe
FI107543B (en) * 1998-07-30 2001-08-31 Outokumpu Oy A method for making a copper tube
US6293336B1 (en) 1999-06-18 2001-09-25 Elkay Manufacturing Company Process and apparatus for use with copper containing components providing low copper concentrations portable water
FI115120B (en) * 2003-03-07 2005-03-15 Outokumpu Oy Method for treating the inner surface of a tube
DE102007055446A1 (en) * 2007-11-12 2009-05-14 Hansgrohe Ag Provision of water-bearing components from brass alloys with reduced metal ion release
TWI719750B (en) * 2019-12-10 2021-02-21 金允成企業股份有限公司 Forging and forming method of aluminum alloy pipe fittings

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU4928979A (en) * 1978-08-07 1980-02-14 Crane Enfield Metals Pty Limited Production of copper tubing
LU81564A1 (en) * 1979-07-31 1981-03-24 Liege Usines Cuivre Zinc METHOD FOR MANUFACTURING TUBES, TUBES OBTAINED BY THIS PROCESS AND THEIR USE IN CONDENSERS AND HEAT EXCHANGERS
DE3018036A1 (en) * 1980-05-10 1981-11-12 Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover METHOD OF TREATING COPPER PIPES
FR2547317B3 (en) * 1983-06-09 1986-02-28 Trefimetaux PROCESS FOR IMPROVING THE CINTRABILITY OF A NUT OF COPPER TUBE, BY PARTIAL ANNEALING
ATE45993T1 (en) * 1987-03-07 1989-09-15 Wieland Werke Ag METHOD OF IMPROVING THE CORROSION RESISTANCE OF HARD SEMI-HARD COPPER INSTALLATION TUBES.
FR2668170B1 (en) * 1990-10-18 1992-12-11 Trefimetaux PROCESS FOR IMPROVING THE CINTRABILITY OF HARD COPPER TUBES BY DYNAMIC HEAT TREATMENT.

Also Published As

Publication number Publication date
EP0647723B1 (en) 2000-04-12
DK0647723T3 (en) 2000-08-28
EP0647723A1 (en) 1995-04-12
DE4334536A1 (en) 1995-04-13
DE59409284D1 (en) 2000-05-18

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