| 摘要 |
A method for manufacturing a hydrodynamic bearing ( 30 ) comprises steps of: step ( 201 ): providing a substrate ( 10 ) with a plurality of protrusions ( 14 ) formed on a periphery thereof; step ( 202 ): placing the substrate in a middle of a hollow mold, then injecting a feedstock of powder and molten binder into the mold to surround the substrate under pressure, thus forming a desired bearing preform ( 20 ); step ( 203 ): separating the substrate from the bearing preform by means of catalytic debinding; step ( 204 ): separating the binder from the bearing preform; step ( 205 ): sintering the bearing preform; step ( 206 ): precision machining the bearing preform to form the desired hydrodynamic bearing.
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