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FR2624875B1 - PROCESS FOR MODIFYING THE COOLING POWER OF AQUEOUS MEDIA FOR THE TEMPERING OF METAL ALLOYS - Google Patents

PROCESS FOR MODIFYING THE COOLING POWER OF AQUEOUS MEDIA FOR THE TEMPERING OF METAL ALLOYS

Info

Publication number
FR2624875B1
FR2624875B1 FR8718109A FR8718109A FR2624875B1 FR 2624875 B1 FR2624875 B1 FR 2624875B1 FR 8718109 A FR8718109 A FR 8718109A FR 8718109 A FR8718109 A FR 8718109A FR 2624875 B1 FR2624875 B1 FR 2624875B1
Authority
FR
France
Prior art keywords
solution
lcst
modifying
water
metal alloys
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 - Fee Related
Application number
FR8718109A
Other languages
French (fr)
Other versions
FR2624875A1 (en
Inventor
Francois Moreaux
Gerard Beck
Abderrahim Louai
Jeanne Francois
Gilbert Pollet
Jean-Paul Betend
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.)
Servimetal SA
Original Assignee
Servimetal 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
Priority to FR8718109A priority Critical patent/FR2624875B1/en
Application filed by Servimetal SA filed Critical Servimetal SA
Priority to EP88420422A priority patent/EP0321370B1/en
Priority to DE8888420422T priority patent/DE3871106D1/en
Priority to ES198888420422T priority patent/ES2037267T3/en
Priority to AT88420422T priority patent/ATE76104T1/en
Priority to JP63317575A priority patent/JPH0637665B2/en
Publication of FR2624875A1 publication Critical patent/FR2624875A1/en
Application granted granted Critical
Publication of FR2624875B1 publication Critical patent/FR2624875B1/en
Priority to GR920401542T priority patent/GR3005214T3/el
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
    • C21D1/60—Aqueous agents

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Lubricants (AREA)
  • Eyeglasses (AREA)

Abstract

Process for modifying the cooling power of an aqueous solution of at least one water-soluble organic polymer which has a lower critical solubility temperature (LCST) with a view to its use for quenching metal alloys, characterised in that a water-soluble additive which modifies the said critical temperature is introduced into the said solution. To lower the LCST of the solution, an inorganic salt of an inorganic or organic acid is preferably employed as an additive in a concentration of between 0.1 and 200 grams per litre, this salt being chosen from the salts of alkali and alkaline-earth metals, including magnesium and zinc. To raise the LCST of the solution, a water-soluble organic derivative is added, in a concentration of between 0.1 and 200 grams per litre, chosen from aliphatic compounds containing at least one functional group chosen from alcohols, acids, aldehydes, amides and amines.
FR8718109A 1987-12-17 1987-12-17 PROCESS FOR MODIFYING THE COOLING POWER OF AQUEOUS MEDIA FOR THE TEMPERING OF METAL ALLOYS Expired - Fee Related FR2624875B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR8718109A FR2624875B1 (en) 1987-12-17 1987-12-17 PROCESS FOR MODIFYING THE COOLING POWER OF AQUEOUS MEDIA FOR THE TEMPERING OF METAL ALLOYS
DE8888420422T DE3871106D1 (en) 1987-12-17 1988-12-15 METHOD FOR CHANGING THE COOLING CAPACITY OF AQUEOUS LIQUIDS FOR TREATING METAL ALLOYS.
ES198888420422T ES2037267T3 (en) 1987-12-17 1988-12-15 PROCEDURE FOR MODIFICATION OF THE COOLING POWER OF AQUEOUS MEDIA INTENDED FOR THE TEMPLE OF METAL ALLOYS.
AT88420422T ATE76104T1 (en) 1987-12-17 1988-12-15 METHOD OF MODIFYING THE COOLING PERFORMANCE OF AQUEOUS LIQUIDS FOR HARDENING METAL ALLOYS.
EP88420422A EP0321370B1 (en) 1987-12-17 1988-12-15 Process for modifying the cooling power of aqueous liquids for quenching metal alloys
JP63317575A JPH0637665B2 (en) 1987-12-17 1988-12-15 Method for correcting cooling capacity of aqueous solution for quenching metal alloy
GR920401542T GR3005214T3 (en) 1987-12-17 1992-07-16

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8718109A FR2624875B1 (en) 1987-12-17 1987-12-17 PROCESS FOR MODIFYING THE COOLING POWER OF AQUEOUS MEDIA FOR THE TEMPERING OF METAL ALLOYS

Publications (2)

Publication Number Publication Date
FR2624875A1 FR2624875A1 (en) 1989-06-23
FR2624875B1 true FR2624875B1 (en) 1992-06-26

Family

ID=9358269

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8718109A Expired - Fee Related FR2624875B1 (en) 1987-12-17 1987-12-17 PROCESS FOR MODIFYING THE COOLING POWER OF AQUEOUS MEDIA FOR THE TEMPERING OF METAL ALLOYS

Country Status (7)

Country Link
EP (1) EP0321370B1 (en)
JP (1) JPH0637665B2 (en)
AT (1) ATE76104T1 (en)
DE (1) DE3871106D1 (en)
ES (1) ES2037267T3 (en)
FR (1) FR2624875B1 (en)
GR (1) GR3005214T3 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3621101B2 (en) * 1993-05-18 2005-02-16 アルミナム カンパニー オブ アメリカ Method for heat-treating metal with coolant containing dissolved gas
JPH1150212A (en) 1997-07-31 1999-02-23 Mazda Motor Corp Method for heat treating light alloy casting
FR2780508B1 (en) * 1998-06-24 2000-08-18 Durferrit Sarl METHOD AND DEVICE FOR CONTROLLING THE COOLING POWER OF A FLUID
DE10035849A1 (en) * 2000-07-24 2002-02-21 Henkel Kgaa Particulate composite material for the controlled release of an active ingredient
CN104136634A (en) * 2012-03-02 2014-11-05 出光兴产株式会社 Water Coolant
JP6227248B2 (en) 2012-12-27 2017-11-08 出光興産株式会社 Water-based coolant
JP6405301B2 (en) * 2013-03-26 2018-10-17 住友精化株式会社 Water-soluble metalworking fluid
DE102019202835A1 (en) * 2019-03-01 2020-09-03 Thyssenkrupp Ag Process for accelerated cooling of flat steel products
JP7422530B2 (en) * 2019-12-17 2024-01-26 三井化学株式会社 Solvent for cloud point measurement of alkylene oxide polymers
JP7357535B2 (en) * 2019-12-17 2023-10-06 三井化学株式会社 Method for producing alkylene oxide polymer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3022205A (en) * 1958-05-14 1962-02-20 Gen Motors Corp Method of quenching and quenching liquid
US3475232A (en) * 1966-11-23 1969-10-28 Houghton & Co E F Method of quenching
FR2537997B1 (en) * 1982-12-16 1988-05-20 Ugine Kuhlmann PROCESS FOR HARDENING FERROUS ALLOYS IN AQUEOUS MEDIA
US4584033A (en) * 1985-06-28 1986-04-22 Union Carbide Corporation Method of quenching

Also Published As

Publication number Publication date
FR2624875A1 (en) 1989-06-23
ES2037267T3 (en) 1993-06-16
GR3005214T3 (en) 1993-05-24
EP0321370A1 (en) 1989-06-21
ATE76104T1 (en) 1992-05-15
DE3871106D1 (en) 1992-06-17
JPH0637665B2 (en) 1994-05-18
EP0321370B1 (en) 1992-05-13
JPH01259119A (en) 1989-10-16

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20060831