Device for determining the purity of a metal alloy

G - Physics – 01 – N

Patent

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Details

G01N 30/00 (2006.01) C22B 9/02 (2006.01) C22B 21/06 (2006.01) G01N 33/20 (2006.01)

Patent

CA 2210810

A device for determining the purity of a metal alloy, in particular an aluminium alloy, It comprises a pot (10) featuring a receptacle (14) of an essentially flared shape on a vertical axis, the lower extremity featuring an orifice (18) of reduced dimensions, the entire orifice being blocked by a filter (20). The device also comprises means (26, 28) for bringing the pot initially to a first pre-set temperature, means for introducing a predetermined quantity of the alloy to be tested into the receptacle, said quantity of the alloy being at a second pre-set temperature, through wihich the alloy flows by gravity via the filter until the latter is clogged by the impurities in the alloy, and means (12) for collecting and measuring the volume of the alloy which has passed through the filter before it is clogged by the impurities in the alloy.

L'invention concerne un dispositif de détermination de la propreté d'un alliage métallique, notamment d'alliage d'aluminium. Il comprend une coquille (10) définissant un récipient (14) de forme générale évasée à axe vertical présentant une extrémité inférieure définissant un orifice (18) de dimensions réduites, un filtre (20) obstruant la totalité dudit orifice, des moyens (26, 28) pour porter initialement ladite coquille à une première température prédéterminée, des moyens pour introduire une quantité prédéterminée de l'alliage à tester dans ledit récipient, ladite quantité d'alliage étant initialement à une deuxième température prédéterminée, par quoi ledit alliage s'écoule par gravité à travers ledit filtre jusqu'au colmatage de celui-ci par les impuretés de l'alliage, et des moyens (12) pour recueillir et mesurer le volume d'alliage ayant traversé ledit filtre avant son colmatage par les impuretés contenues dans l'alliage.

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