ES8406557A1 - Method of quenching ferrous alloys in an aqueous medium - Google Patents

Method of quenching ferrous alloys in an aqueous medium

Info

Publication number
ES8406557A1
ES8406557A1 ES528073A ES528073A ES8406557A1 ES 8406557 A1 ES8406557 A1 ES 8406557A1 ES 528073 A ES528073 A ES 528073A ES 528073 A ES528073 A ES 528073A ES 8406557 A1 ES8406557 A1 ES 8406557A1
Authority
ES
Spain
Prior art keywords
quenching
ferrous alloys
aqueous medium
additive
polyvinylpyrrolidone
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
Application number
ES528073A
Other languages
Spanish (es)
Other versions
ES528073A0 (en
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.)
Produits Chimiques Ugine Kuhlmann
Ugine Kuhlmann SA
Original Assignee
Produits Chimiques Ugine Kuhlmann
Ugine Kuhlmann 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 Produits Chimiques Ugine Kuhlmann, Ugine Kuhlmann SA filed Critical Produits Chimiques Ugine Kuhlmann
Publication of ES528073A0 publication Critical patent/ES528073A0/en
Publication of ES8406557A1 publication Critical patent/ES8406557A1/en
Expired 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

Abstract

Articles made of ferrous alloys, particularly articles made of carbon steels and alloyed steels, that have previously been brought to an elevated temperature of over 750 DEG C and generally from 800 to 950 DEG C, are quenched in an aqueous solution of polyvinylpyrrolidone containing an additive that causes reversible precipitation of polyvinylpyrrolidone at the surface of the articles at the time when they are placed in the quenching medium, the quenching medium being subjected to agitation. The most appropriate precipitating additive is sodium sulphate at a concentration of 5 to 10 g/l.
ES528073A 1982-12-16 1983-12-15 Method of quenching ferrous alloys in an aqueous medium Expired ES8406557A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8221495A FR2537997B1 (en) 1982-12-16 1982-12-16 PROCESS FOR HARDENING FERROUS ALLOYS IN AQUEOUS MEDIA

Publications (2)

Publication Number Publication Date
ES528073A0 ES528073A0 (en) 1984-08-01
ES8406557A1 true ES8406557A1 (en) 1984-08-01

Family

ID=9280362

Family Applications (1)

Application Number Title Priority Date Filing Date
ES528073A Expired ES8406557A1 (en) 1982-12-16 1983-12-15 Method of quenching ferrous alloys in an aqueous medium

Country Status (14)

Country Link
BE (1) BE898467A (en)
CH (1) CH655739A5 (en)
DD (1) DD213692A5 (en)
DE (1) DE3345253A1 (en)
ES (1) ES8406557A1 (en)
FI (1) FI70928C (en)
FR (1) FR2537997B1 (en)
GB (1) GB2133048B (en)
GR (1) GR79709B (en)
HU (1) HUT37176A (en)
IT (1) IT1170003B (en)
NO (1) NO160147C (en)
PL (1) PL138977B1 (en)
SE (1) SE457088B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2624875B1 (en) * 1987-12-17 1992-06-26 Servimetal PROCESS FOR MODIFYING THE COOLING POWER OF AQUEOUS MEDIA FOR THE TEMPERING OF METAL ALLOYS
JP6235997B2 (en) * 2012-03-02 2017-11-22 出光興産株式会社 Water-based coolant
CN114807522A (en) * 2022-04-21 2022-07-29 通裕重工股份有限公司 Hardening and tempering process of crusher forging head
CN115948015B (en) * 2022-12-23 2023-12-08 南京科润工业介质股份有限公司 Characterization method of film forming performance of water-soluble quenching medium

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1384244A (en) * 1963-12-26 1965-01-04 Union Carbide Corp Quenching medium for a metal
US3475232A (en) * 1966-11-23 1969-10-28 Houghton & Co E F Method of quenching
FR1525603A (en) * 1967-06-02 1968-05-17 Basf Ag Rapid cooling baths for hardening metallic materials
JPS533725B2 (en) * 1972-10-02 1978-02-09
US3902929A (en) * 1974-02-01 1975-09-02 Park Chem Co Water-based quenching composition comprising polyvinylpyrrolidone and method of quenching
US4087290A (en) * 1975-07-03 1978-05-02 E. F. Houghton & Co. Process for the controlled cooling of ferrous metal

Also Published As

Publication number Publication date
DE3345253C2 (en) 1987-12-10
IT1170003B (en) 1987-06-03
FI70928C (en) 1986-10-27
SE8306925D0 (en) 1983-12-14
GB2133048A (en) 1984-07-18
FI834627A (en) 1984-06-17
ES528073A0 (en) 1984-08-01
NO160147C (en) 1989-03-15
GB2133048B (en) 1986-10-15
CH655739A5 (en) 1986-05-15
IT8324186A0 (en) 1983-12-15
PL138977B1 (en) 1986-11-29
BE898467A (en) 1984-06-15
FR2537997A1 (en) 1984-06-22
SE8306925L (en) 1984-06-17
FR2537997B1 (en) 1988-05-20
SE457088B (en) 1988-11-28
FI834627A0 (en) 1983-12-15
FI70928B (en) 1986-07-18
NO160147B (en) 1988-12-05
DE3345253A1 (en) 1984-07-12
HUT37176A (en) 1985-11-28
GB8333468D0 (en) 1984-01-25
PL245157A1 (en) 1984-09-24
NO834628L (en) 1984-06-18
GR79709B (en) 1984-10-31
DD213692A5 (en) 1984-09-19

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