| 摘要 |
A method of manufacturing a fan from a plurality of fan blades ( 12 ), comprising the steps of: providing an injection moulding tool ( 30 ) which defines a fan hub section ( 14 ); assembling a predetermined number of preformed fan blades with the injection moulding so that inner ends ( 16 ) of said blades extend into moulding cavities ( 32 ) within the tool, injecting synthetic plastics material into the tool, and allowing the injected material to cool or cure to thereby form a moulded hub with the inner ends of the blades bonded therein. |
