FIELD: metallurgy.
SUBSTANCE: invention relates to powder metallurgy, in particular to metal-polymer compositions for manuracturing PIM-products by means of moulding and sintering said compositions. The composition is prepared by means of mechanical mixing the two mixtures; the components of the first one are finely divided powders of the alloying element and iron, and the components of the second one are an organic binder and a plasticizer - stearic acid, the composition comprising the titanium powder as an alloying element, and the mixture of paraffin and polypropylene as an organic binder. Wherein said two mixtures are mixed in the weight ratio of 65:35, the nanoscale part of the initial powders being 3.7 wt % and having the size distribution curve in the range of 30-70 nm.
EFFECT: invention provides obtaining the composition having sedimentation resistance, as well as high fluidity, for the production of moulded articles of any degree of complexity.
5 cl, 3 ex
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Authors
Dates
2017-03-22—Published
2015-12-07—Filed