DE69119094D1 - USE OF A COLLOIDAL STARCH SOLUTION FOR THE PRODUCTION OF BATHS FOR QUARCHING METALS - Google Patents

USE OF A COLLOIDAL STARCH SOLUTION FOR THE PRODUCTION OF BATHS FOR QUARCHING METALS

Info

Publication number
DE69119094D1
DE69119094D1 DE69119094T DE69119094T DE69119094D1 DE 69119094 D1 DE69119094 D1 DE 69119094D1 DE 69119094 T DE69119094 T DE 69119094T DE 69119094 T DE69119094 T DE 69119094T DE 69119094 D1 DE69119094 D1 DE 69119094D1
Authority
DE
Germany
Prior art keywords
baths
metals
quarching
production
starch solution
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
DE69119094T
Other languages
German (de)
Inventor
Serge Gosset
Jean-Michel Ludot
Michel Deck
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.)
Roquette Freres SA
Castrol France SA
Original Assignee
Roquette Freres SA
Castrol France 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 Roquette Freres SA, Castrol France SA filed Critical Roquette Freres SA
Application granted granted Critical
Publication of DE69119094D1 publication Critical patent/DE69119094D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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)
  • Materials Engineering (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Coating With Molten Metal (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

A concentrated aqueous composition is provided for baths for quenching metals and/or alloys thereof, and contains at least one starchy compound. The quenching bath obtained therewith and a quenching method using said bath are also described.
DE69119094T 1990-12-27 1991-12-23 USE OF A COLLOIDAL STARCH SOLUTION FOR THE PRODUCTION OF BATHS FOR QUARCHING METALS Expired - Lifetime DE69119094D1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9016344A FR2671103B1 (en) 1990-12-27 1990-12-27 COMPOSITION, BATH AND METHOD FOR TEMPERING METALS.
PCT/FR1991/001059 WO1992012267A1 (en) 1990-12-27 1991-12-23 Composition, bath and method for quenching metals

Publications (1)

Publication Number Publication Date
DE69119094D1 true DE69119094D1 (en) 1996-05-30

Family

ID=9403726

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69119094T Expired - Lifetime DE69119094D1 (en) 1990-12-27 1991-12-23 USE OF A COLLOIDAL STARCH SOLUTION FOR THE PRODUCTION OF BATHS FOR QUARCHING METALS

Country Status (7)

Country Link
EP (1) EP0564549B1 (en)
JP (1) JPH06504813A (en)
KR (1) KR0167364B1 (en)
AT (1) ATE137271T1 (en)
DE (1) DE69119094D1 (en)
FR (1) FR2671103B1 (en)
WO (1) WO1992012267A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR892357A (en) * 1942-11-27 1944-04-05 Le Faisceau Metallurg New process and product for hardening any steels and alloys
FR1167785A (en) * 1956-11-13 1958-11-28 Process for hardening metals
US4021260A (en) * 1976-01-30 1977-05-03 Nalco Chemical Company Starch viscosity control agent using an ethoxylated fatty alcohol
FR2434821A1 (en) * 1978-08-31 1980-03-28 Roquette Freres PROCESS FOR CATIONIZING STARCH, NOVEL CATIONIZED STARCHES THUS OBTAINED AND APPLICATIONS THEREOF
FR2530668B1 (en) * 1982-07-23 1987-05-07 Roquette Freres APPLICATION OF A HYDROGEN STARCH HYDROGEN TO METAL HARDENING

Also Published As

Publication number Publication date
KR930703471A (en) 1993-11-30
ATE137271T1 (en) 1996-05-15
FR2671103B1 (en) 1994-05-13
WO1992012267A1 (en) 1992-07-23
KR0167364B1 (en) 1999-01-15
EP0564549B1 (en) 1996-04-24
JPH06504813A (en) 1994-06-02
FR2671103A1 (en) 1992-07-03
EP0564549A1 (en) 1993-10-13

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Legal Events

Date Code Title Description
8332 No legal effect for de