GB634870A - Method of treating aluminium magnesium alloys - Google Patents

Method of treating aluminium magnesium alloys

Info

Publication number
GB634870A
GB634870A GB20896/47A GB2089647A GB634870A GB 634870 A GB634870 A GB 634870A GB 20896/47 A GB20896/47 A GB 20896/47A GB 2089647 A GB2089647 A GB 2089647A GB 634870 A GB634870 A GB 634870A
Authority
GB
United Kingdom
Prior art keywords
casting
alloy
trichloride
treating
magnesium 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
Application number
GB20896/47A
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.)
Acme Aluminum Alloys Inc
Original Assignee
Acme Aluminum Alloys Inc
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 Acme Aluminum Alloys Inc filed Critical Acme Aluminum Alloys Inc
Publication of GB634870A publication Critical patent/GB634870A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/06—Alloys based on aluminium with magnesium as the next major constituent

Abstract

A method of treating aluminium-magnesium alloys containing 9.5-12.0 per cent magnesium, to impart thereto a fine grain structure and relatively high average value of physical properties, comprises treating the alloy while in its molten condition with boron trichloride to degasify and scour the alloy, using excess of the trichloride sufficient to provide a boron content in the alloy of 0.001-0.05 per cent, casting the alloy and heat treating the casting at a solution-anneal temperature of 820 DEG F for from 3 to 4 hours, slow cooling the casting to a temperature within the range 680 DEG F-730 DEG F, and quenching in cold water to room temperature. The casting may then be aged for a period of approximately 90 days. Degasification and scouring is perperably obtained by a strong free flow of trichloride for approximately 2 seconds for each pound of molten metal to be treated.
GB20896/47A 1946-07-30 1947-07-31 Method of treating aluminium magnesium alloys Expired GB634870A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US634870XA 1946-07-30 1946-07-30

Publications (1)

Publication Number Publication Date
GB634870A true GB634870A (en) 1950-03-29

Family

ID=22049535

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20896/47A Expired GB634870A (en) 1946-07-30 1947-07-31 Method of treating aluminium magnesium alloys

Country Status (1)

Country Link
GB (1) GB634870A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2769736A (en) * 1955-04-13 1956-11-06 Forbell Corp Process of improving the properties of heat resistant alloys
US3007821A (en) * 1958-02-12 1961-11-07 Ampco Metal Inc Method of heat treating a cast aluminum bronze article

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2769736A (en) * 1955-04-13 1956-11-06 Forbell Corp Process of improving the properties of heat resistant alloys
US3007821A (en) * 1958-02-12 1961-11-07 Ampco Metal Inc Method of heat treating a cast aluminum bronze article

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