Binder for powder metallurgical compositions

Details Binder for powder metallurgical compositions Binder for powder metallurgical compositions

B - Operations, Transporting

22

F

B22F 1/00 (2006.01) B22F 7/06 (2006.01)

Patent

CA 2529326

A binder for metallurgical powder compositions for powder metallurgy (P/M) applications, includes styrene/maleic anhydride copolymers and their derivatives. Addition of such binders has improved resistance to dusting, and has improved flow properties of the compositions, even in high relative humidity environments. The compositions can be compacted either at cold or warm temperatures. A mechanical strength of a sintered product containing the binder-treated mix is similar to that of sintered products containing the binder-treated mix is similar to that of sintered products without the binder.

Un liant pour compositions métallurgiques en poudre pour des applications en métallurgie des poudres (M/P) comprenant des copolymères d'anhydride styrène/maléique et leurs dérivés. L'addition de tels liants a amélioré la résistance à la poussière et des propriétés d'écoulement des compositions, même dans des environnements à forte humidité relative. Les compositions peuvent être compactées à des températures froides ou chaudes. Une résistance mécanique d'un produit fritté contenant le mélange traité au liant est semblable à celle des produits frittés exempts de liants.

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