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AssigneesWhirlpool Corporation, Universidade Federal De Santa Catarina (UFSC), Lupatech S.A.
InventorsRoberto Binder, Aloisio Nelmo Klein, Cristiano Binder, Gisele Hammes, Moises Luiz Parucker, Waldyr Ristow Junior
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The metallurgical composition includes a main particulate metallic material, for example iron or nickel, and at least one alloy element for hardening the main metallic material, which form a structural matrix; a particulate solid lubricant, such as graphite, hexagonal boron nitride or mixture thereof; and a particulate alloy element which is capable of forming, during the sintering of the composition conformed by compaction or by injection molding, a liquid phase, agglomerating the solid lubricant in discrete particles. The composition may include an alloy component to stabilize the alpha-iron matrix phase, during the sintering, in order to prevent the graphite solid lubricant from being solubilized in the iron. The invention further refers to a self-lubricating sintered product, obtained from the composition, and to the process for obtaining said product.
A metallurgical composition of particulate materials, for forming conformed and sintered self-lubricating composite products, characterized in that it comprises a main particulate metallic material, in the form of a preponderant chemical element, and at least one hardening element, which form a Structural matrix in the composite product to be sintered;
Dependencies are inferred from the claim text.