| 摘要 |
PURPOSE:To shorten a production period, simplify an operation, raise a shape accuracy, lower a cost, and reduce a weight by a method wherein a blade body is inserted to a mold for obtaining a required blade shape, and a thermoplastic resin is injected into a gap formed between the blade body and the mold to be charged in the gap, in this state being compression molded. CONSTITUTION:Two blade body forming materials 1 are inserted into a simplified mold 2 in an overlapped state and compression molded. Next, a blade body 3 is inserted to a final mold 4 for obtaining a required blade shape. A thermoplastic resin 6 is injected by an injection system into a gap 5 formed between the blade body 3 and the final mold 4 to be charged in the gap 5, in this state being compression molded. In a process for forming the blade body 3, since a shape approximating the required blade shape is roughly obtained using the simplified mold 2, an operation is simplied without the need for an accurate shape control. In a process for finally forming a desired blade, a workability is improved, and a shape accuracy is raised. |
