Iron-based powder mixture and method
AssigneeKawasaki Steel Corporation
InventorsKuniaki Ogura, Shigeaki Takajo, Hiroyuki Ishikawa, Akio Sonobe, Yoshiaki Maeda, Toshiyuki Minegishi
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Abstract
An iron-based powder mixture for powder metallurgy essentially consists of a melted mixture, as a binder, which includes about 0.1% to about 1.0% by weight of a powder of at least one organic compound selected from stearic acid, oleic acid amide, and stearic acid amide, and about 0.1% to about 1.0% by weight of a powder of stearic acid bisamide; and the balance which is an iron-based powder, to the surface of which adhered about 0.1% to about 3.0% by weight of an alloying powder and/or a powder for improving machinability. Disclosed also is a method of producing the mixture.
Claims7
An iron-based powder mixture for powder metallurgy comprising:
- an iron-based powder;
- at least one low melting point organic lubricant selected from the group consisting of stearic acid, oleic acid amide and stearic acid amide which has been melted and adhered to said iron powder;
- and
- a high melting point organic lubricant in powder form comprising stearic acid bisamide adhered to said iron powder by said melted lubricant.
Dependencies are inferred from the claim text.