Sleeve, procedure for the manufacture thereof and mixture...

Details Sleeve, procedure for the manufacture thereof and mixture... Sleeve, procedure for the manufacture thereof and mixture...

B - Operations, Transporting

22

D

B22D 7/10 (2006.01) B22C 9/08 (2006.01)

Patent

CA 2498240

Procedure for the production of sleeves for mini-deadheads, in which a fluoride-free mixture, consisting of microspheres of aluminium silicate, an oxidizable metal, such as powdered aluminium, an oxidizable agent, magnesium as initiator element of the exothermic reaction, are introduced by blowing in a mould fitted with two cores to produce a sleeve provided with two openings, one of which is closed with a plug before being used.

L'invention concerne un procédé de fabrication de manchons pour mini masselottes. Ce procédé consiste à introduire par soufflage un mélange sans fluor constitué de microsphères de silicate d'aluminium, d'un métal oxydable, tel que de l'aluminium en poudre, d'un agent oxydable, et de magnésium utilisé en tant qu'élément initiateur de la réaction exothermique, dans un moule pourvu de deux pièces mâles afin de créer un manchon comportant deux ouvertures. L'une de ces ouvertures se ferme au moyen d'un bouchon avant son utilisation.

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