Specialized metallurgical processes – compositions for use therei – Compositions – Loose particulate mixture containing metal particles
Reexamination Certificate
2006-12-19
2006-12-19
Mai, Ngoclan T. (Department: 1742)
Specialized metallurgical processes, compositions for use therei
Compositions
Loose particulate mixture containing metal particles
C524S035000
Reexamination Certificate
active
07150775
ABSTRACT:
A powder metal mixture comprises a lubricant powder conventionally used to produce powder metal parts in combination with micronized cellulose fibers in an amount less than 2% by weight of the mixture. The addition of fibers with the lubricant increases green strength of a part made by compacting the mixture and improves dimensional conformance.
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Jones, L.D., et al.; The Effect of Microcrystalline Cellulose on the Mixing and Compaction Response of Ferrous Powders. 1981, Powder Technology, 30(1), 9-19.
Nelson Bart Jerome
Tavares Bruce Anthony
Lobo Alfred D.
Mai Ngoclan T.
React-NTI, LLC
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