ATE137271T1 - USE OF A COLLOIDAL STARCH SOLUTION FOR PREPARING BATHS FOR QUENCHING METALS - Google Patents

USE OF A COLLOIDAL STARCH SOLUTION FOR PREPARING BATHS FOR QUENCHING METALS

Info

Publication number
ATE137271T1
ATE137271T1 AT92902787T AT92902787T ATE137271T1 AT E137271 T1 ATE137271 T1 AT E137271T1 AT 92902787 T AT92902787 T AT 92902787T AT 92902787 T AT92902787 T AT 92902787T AT E137271 T1 ATE137271 T1 AT E137271T1
Authority
AT
Austria
Prior art keywords
starch solution
quenching
baths
colloidal starch
metals
Prior art date
Application number
AT92902787T
Other languages
German (de)
Inventor
Serge Gosset
Jean-Michel Ludot
Michel Deck
Original Assignee
Roquette Freres
Castrol France
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, Castrol France filed Critical Roquette Freres
Application granted granted Critical
Publication of ATE137271T1 publication Critical patent/ATE137271T1/en

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

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.
AT92902787T 1990-12-27 1991-12-23 USE OF A COLLOIDAL STARCH SOLUTION FOR PREPARING BATHS FOR QUENCHING METALS ATE137271T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9016344A FR2671103B1 (en) 1990-12-27 1990-12-27 COMPOSITION, BATH AND METHOD FOR TEMPERING METALS.

Publications (1)

Publication Number Publication Date
ATE137271T1 true ATE137271T1 (en) 1996-05-15

Family

ID=9403726

Family Applications (1)

Application Number Title Priority Date Filing Date
AT92902787T ATE137271T1 (en) 1990-12-27 1991-12-23 USE OF A COLLOIDAL STARCH SOLUTION FOR PREPARING BATHS FOR QUENCHING 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
WO1992012267A1 (en) 1992-07-23
DE69119094D1 (en) 1996-05-30
FR2671103A1 (en) 1992-07-03
JPH06504813A (en) 1994-06-02
EP0564549B1 (en) 1996-04-24
KR0167364B1 (en) 1999-01-15
FR2671103B1 (en) 1994-05-13
EP0564549A1 (en) 1993-10-13
KR930703471A (en) 1993-11-30

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties