GB476946A - Improvements relating to hardening iron alloys by quenching - Google Patents

Improvements relating to hardening iron alloys by quenching

Info

Publication number
GB476946A
GB476946A GB16972/36A GB1697236A GB476946A GB 476946 A GB476946 A GB 476946A GB 16972/36 A GB16972/36 A GB 16972/36A GB 1697236 A GB1697236 A GB 1697236A GB 476946 A GB476946 A GB 476946A
Authority
GB
United Kingdom
Prior art keywords
quenching
liquid
improvements relating
iron alloys
soap
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
GB16972/36A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Publication of GB476946A publication Critical patent/GB476946A/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

Abstract

To moderate the hardening effect of a liquid used for quenching the surface of a heated iron alloy article, air or another gas, such as nitrogen or carbon dioxide, is introduced into the quenching liquid in the form of finely distributed bubbles. The air or other gas may be enclosed in the foam produced by adding a foam-former, such as soap, saponin or glycerine, to the quenching p liquid and may be introduced into the liquid or the soap or solution by means of a water-jet pump. Instead of water chlorinated hydrocarbons such as carbon tetrachloride or trichlorethylene may be used as the quenching liquid.
GB16972/36A 1935-06-19 1936-06-18 Improvements relating to hardening iron alloys by quenching Expired GB476946A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE476946X 1935-06-19

Publications (1)

Publication Number Publication Date
GB476946A true GB476946A (en) 1937-12-20

Family

ID=6542063

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16972/36A Expired GB476946A (en) 1935-06-19 1936-06-18 Improvements relating to hardening iron alloys by quenching

Country Status (1)

Country Link
GB (1) GB476946A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0126481A2 (en) * 1983-05-24 1984-11-28 Sumitomo Electric Industries Limited Method and apparatus for direct heat treatment of medium- to high-carbon steel rods
WO1994026939A1 (en) * 1993-05-18 1994-11-24 Aluminum Company Of America A method of heat treating metal with liquid coolant containing dissolved gas
CN104593555A (en) * 2015-01-10 2015-05-06 安徽东星汽车部件有限公司 Quenching agent containing tea saponin and preparation method thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0126481A2 (en) * 1983-05-24 1984-11-28 Sumitomo Electric Industries Limited Method and apparatus for direct heat treatment of medium- to high-carbon steel rods
EP0126481A3 (en) * 1983-05-24 1985-11-13 Sumitomo Electric Industries Limited Method and apparatus for direct heat treatment of medium- to high-carbon steel rods
WO1994026939A1 (en) * 1993-05-18 1994-11-24 Aluminum Company Of America A method of heat treating metal with liquid coolant containing dissolved gas
US5681407A (en) * 1993-05-18 1997-10-28 Aluminum Company Of America Method of heat treating metal with liquid coolant containing dissolved gas
US5820705A (en) * 1993-05-18 1998-10-13 Aluminum Company Of America Spray quenching of metal with liquid coolant containing dissolved gas
CN104593555A (en) * 2015-01-10 2015-05-06 安徽东星汽车部件有限公司 Quenching agent containing tea saponin and preparation method thereof

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