Binder for powder metallurgy, mixed powder for powder metallurgy and method for producing same
AssigneeKabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
InventorsKazuhisa Fujisawa, Hironori Suzuki
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Abstract
The invention aims to provide a binder for powder metallurgy, the binder containing an epoxy resin which is liquid at room temperature and a curing agent having at least one functional group selected from the group consisting of amino, mercapto and carboxyl groups. The binder involves few problems in point of workability and safety, suppress the scattering of graphite, and is superior in powder characteristics. The invention also provides a mixed powder for powder metallurgy using the binder and a method for producing the mixed powder.
Claims7
A binder for powder metallurgy to be incorporated in a raw powder for powder metallurgy, the binder comprising an epoxy resin which is liquid at room temperature and a curing agent having at least one functional group selected from the group consisting of amino, mercapto and carboxyl groups.
Dependencies are inferred from the claim text.