FR2187464A2 - Casting magnesium (alloy) - under inert protective gas atmos. derived from evapn of liq gas - Google Patents

Casting magnesium (alloy) - under inert protective gas atmos. derived from evapn of liq gas

Info

Publication number
FR2187464A2
FR2187464A2 FR7221546A FR7221546A FR2187464A2 FR 2187464 A2 FR2187464 A2 FR 2187464A2 FR 7221546 A FR7221546 A FR 7221546A FR 7221546 A FR7221546 A FR 7221546A FR 2187464 A2 FR2187464 A2 FR 2187464A2
Authority
FR
France
Prior art keywords
gas
alloy
atmos
evapn
derived
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.)
Granted
Application number
FR7221546A
Other languages
French (fr)
Other versions
FR2187464B2 (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.)
Air Liquide SA
Original Assignee
Air Liquide 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 Air Liquide SA filed Critical Air Liquide SA
Priority to FR7221546A priority Critical patent/FR2187464A2/en
Publication of FR2187464A2 publication Critical patent/FR2187464A2/en
Application granted granted Critical
Publication of FR2187464B2 publication Critical patent/FR2187464B2/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
    • B22D21/002—Castings of light metals
    • B22D21/007—Castings of light metals with low melting point, e.g. Al 659 degrees C, Mg 650 degrees C

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

Liquefied gas, esp. Ar or N2, is fed continuously through lances into the molten metal in hooded, induction, heated crucibles and is also used for thorough impregnation of the walls of the mould cavities before they are transferred to the casing posn; the residual O2 content of the atmos. which the molten metal contacts is 1% pref. 0.1% as in the parent patent. In applying the process to Mg (alloy) a layer of heated liquefied inert gas is maintained over the whole of the molten surface from the moment at which during melting and mfr. in a ladle the metal is covered by a continuous layer of liquefied gas, to the moment at which the metal is cast into a mould which has previously been purged by a jet of liquefied inert gas.
FR7221546A 1972-06-15 1972-06-15 Casting magnesium (alloy) - under inert protective gas atmos. derived from evapn of liq gas Granted FR2187464A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7221546A FR2187464A2 (en) 1972-06-15 1972-06-15 Casting magnesium (alloy) - under inert protective gas atmos. derived from evapn of liq gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7221546A FR2187464A2 (en) 1972-06-15 1972-06-15 Casting magnesium (alloy) - under inert protective gas atmos. derived from evapn of liq gas

Publications (2)

Publication Number Publication Date
FR2187464A2 true FR2187464A2 (en) 1974-01-18
FR2187464B2 FR2187464B2 (en) 1974-11-08

Family

ID=9100244

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7221546A Granted FR2187464A2 (en) 1972-06-15 1972-06-15 Casting magnesium (alloy) - under inert protective gas atmos. derived from evapn of liq gas

Country Status (1)

Country Link
FR (1) FR2187464A2 (en)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Also Published As

Publication number Publication date
FR2187464B2 (en) 1974-11-08

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