FR2308436A1 - Avoiding carbon deposits during annealing, from lubricants - in the bore of drawn copper tubes, by sweeping with nitrogen - Google Patents

Avoiding carbon deposits during annealing, from lubricants - in the bore of drawn copper tubes, by sweeping with nitrogen

Info

Publication number
FR2308436A1
FR2308436A1 FR7514019A FR7514019A FR2308436A1 FR 2308436 A1 FR2308436 A1 FR 2308436A1 FR 7514019 A FR7514019 A FR 7514019A FR 7514019 A FR7514019 A FR 7514019A FR 2308436 A1 FR2308436 A1 FR 2308436A1
Authority
FR
France
Prior art keywords
bore
carbon deposits
gas
lubricant
sweeping
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.)
Withdrawn
Application number
FR7514019A
Other languages
French (fr)
Inventor
Olivier Diner
Donald Whitwham
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.)
Alcatel CIT SA
Original Assignee
Alcatel CIT SA
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 Alcatel CIT SA filed Critical Alcatel CIT SA
Priority to FR7514019A priority Critical patent/FR2308436A1/en
Priority to DE19762617406 priority patent/DE2617406A1/en
Priority to BE166353A priority patent/BE840989A/en
Priority to BR7602524A priority patent/BR7602524A/en
Priority to JP4644176A priority patent/JPS51130623A/en
Publication of FR2308436A1 publication Critical patent/FR2308436A1/en
Withdrawn legal-status Critical Current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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Metal Extraction Processes (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Heat Treatment Of Nonferrous Metals Or Alloys (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)

Abstract

New treatment process for tubes, made in copper or its alloys, after drawing in the presence of a lubricant, the treatment being designed to eliminate the formation of carbon deposits adhering to the bore of the tubes due to decompsn. of the lubricant during the annealing treatment. The novelty is that the tube is heated to a temp. providing an adequate vapour pressure from the lubricant and a gas is fed through the tube t remove the vapour. The flow of gas is pref. employed during the entire annealing cycle, using a weak reducing gas or an inert gas, esp. N2, CO2, steam or their mixt. to obtain a residual carbon deposit of max. 0.5 mg/dm2 and generally below 0.15 mg/dm2 in the bore. Process is useful for example, in domestic sanitary piping where pitting corrosion is promoted by carbon deposits, or in other applications.
FR7514019A 1975-04-25 1975-04-25 Avoiding carbon deposits during annealing, from lubricants - in the bore of drawn copper tubes, by sweeping with nitrogen Withdrawn FR2308436A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR7514019A FR2308436A1 (en) 1975-04-25 1975-04-25 Avoiding carbon deposits during annealing, from lubricants - in the bore of drawn copper tubes, by sweeping with nitrogen
DE19762617406 DE2617406A1 (en) 1975-04-25 1976-04-21 METHOD FOR TREATMENT OF COPPER PIPES
BE166353A BE840989A (en) 1975-04-25 1976-04-22 TREATMENT OF COPPER AND ALLOY TUBES WITH A VIEW TO THE REMOVAL OF CARBON PRODUCTS SUBSTITUTING THEIR SURFACE
BR7602524A BR7602524A (en) 1975-04-25 1976-04-23 PERFECT PROCESS OF TREATING TUBES IN RED COPPER OR IN COPPER BASED ALLOYS
JP4644176A JPS51130623A (en) 1975-04-25 1976-04-23 Method of treating pure copper or copper alloy tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7514019A FR2308436A1 (en) 1975-04-25 1975-04-25 Avoiding carbon deposits during annealing, from lubricants - in the bore of drawn copper tubes, by sweeping with nitrogen

Publications (1)

Publication Number Publication Date
FR2308436A1 true FR2308436A1 (en) 1976-11-19

Family

ID=9154858

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7514019A Withdrawn FR2308436A1 (en) 1975-04-25 1975-04-25 Avoiding carbon deposits during annealing, from lubricants - in the bore of drawn copper tubes, by sweeping with nitrogen

Country Status (5)

Country Link
JP (1) JPS51130623A (en)
BE (1) BE840989A (en)
BR (1) BR7602524A (en)
DE (1) DE2617406A1 (en)
FR (1) FR2308436A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2474532A1 (en) * 1980-01-30 1981-07-31 Wieland Werke Ag Drawn tube made of copper deoxidised with phosphorus - where oxidant gas is fed through tube bore during annealing, and bore is then shot blasted, to attain high corrosion resistance
FR2481963A1 (en) * 1980-05-10 1981-11-13 Kabel Metallwerke Ghh PROCESS AND INSTALLATION FOR PROCESSING COPPER TUBES
FR2508064A1 (en) * 1981-06-23 1982-12-24 Stein Heurtey PROCESS FOR DEGREASING A COLD ROLLED BELT
EP0281641A1 (en) * 1987-03-07 1988-09-14 Wieland-Werke Ag Process for improving the corrosion resistance of hard or semi-hard copper fitting tubes
EP0306810A2 (en) * 1987-09-10 1989-03-15 KM Europa Metal Aktiengesellschaft Method of producing pitting-resistant hard drawn tubes made of copper or copper-based alloys
EP0659907A2 (en) * 1993-11-11 1995-06-28 Daidotokushuko Kabushiki Kaisha Oil removing apparatus and oil removing method for a pipe coil
EP0889139A1 (en) * 1997-06-06 1999-01-07 Peter Helmut Dipl.-Ing. Ebner Device for flushing cold drawn coiled pipes in a roller-hearth furnace

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2928083A1 (en) * 1979-07-12 1981-01-29 Kabel Metallwerke Ghh Heat treatment of drawn copper tubes - where inert gas is circulated through bore of hot tube to remove drawing lubricants without permitting air to enter
DE2928084A1 (en) * 1979-07-12 1981-01-29 Kabel Metallwerke Ghh Heat treatment of drawn copper tube - where air is drawn through bore of hot tube for removal of carbon formed by drawing lubricants
JP2587846B2 (en) * 1987-12-28 1997-03-05 株式会社神戸製鋼所 Heat transfer tube having excellent seawater corrosion resistance and method for producing the same
DE19830485C2 (en) * 1998-07-08 2002-10-24 Wieland Werke Ag Device for annealing copper tube coils
DE102008002079A1 (en) 2008-02-20 2009-08-27 Baumüller Nürnberg GmbH Removing thin oxide layer from a surface of a metal object, comprises exposing the metal surface to an oxide-reducing environment, reducing the oxide layer, so that the metal surface is blank, and subjecting the metal object to a cooling
CN115433885A (en) * 2022-08-05 2022-12-06 上海海亮铜业有限公司 Method for preventing oxidation of inner hole of ultra-long cupronickel mosquito-repellent incense tube

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3738025A (en) * 1972-07-31 1973-06-12 Hanson Ind Inc Ski boot having variable stiffness

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2474532A1 (en) * 1980-01-30 1981-07-31 Wieland Werke Ag Drawn tube made of copper deoxidised with phosphorus - where oxidant gas is fed through tube bore during annealing, and bore is then shot blasted, to attain high corrosion resistance
FR2481963A1 (en) * 1980-05-10 1981-11-13 Kabel Metallwerke Ghh PROCESS AND INSTALLATION FOR PROCESSING COPPER TUBES
FR2508064A1 (en) * 1981-06-23 1982-12-24 Stein Heurtey PROCESS FOR DEGREASING A COLD ROLLED BELT
EP0069009A1 (en) * 1981-06-23 1983-01-05 Stein Heurtey Process for degreasing cold rolled metal strip
EP0281641A1 (en) * 1987-03-07 1988-09-14 Wieland-Werke Ag Process for improving the corrosion resistance of hard or semi-hard copper fitting tubes
EP0306810A2 (en) * 1987-09-10 1989-03-15 KM Europa Metal Aktiengesellschaft Method of producing pitting-resistant hard drawn tubes made of copper or copper-based alloys
EP0306810A3 (en) * 1987-09-10 1990-05-30 Km-Kabelmetal Aktiengesellschaft Method of producing pitting-resistant hard drawn tubes made of copper or copper-based alloys
EP0659907A2 (en) * 1993-11-11 1995-06-28 Daidotokushuko Kabushiki Kaisha Oil removing apparatus and oil removing method for a pipe coil
EP0659907A3 (en) * 1993-11-11 1995-10-11 Daido Steel Co Ltd Oil removing apparatus and oil removing method for a pipe coil.
KR100331484B1 (en) * 1993-11-11 2002-12-11 다이도 스틸 코오퍼레이션 리미티드 Oil removal device and oil removal method of pipe coil
EP0889139A1 (en) * 1997-06-06 1999-01-07 Peter Helmut Dipl.-Ing. Ebner Device for flushing cold drawn coiled pipes in a roller-hearth furnace

Also Published As

Publication number Publication date
JPS51130623A (en) 1976-11-13
BR7602524A (en) 1976-10-19
DE2617406A1 (en) 1976-11-18
BE840989A (en) 1976-10-22

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Legal Events

Date Code Title Description
ST Notification of lapse