| 摘要 |
PURPOSE:To enhance the reliability of a module by suppressing the rising in temp. at the time of curing to a low degree even if a total amount of an injection molding resin is injected at once, in sealing the terminal ends of a hollow yarn membrane group with the injection molding resin, by attaching a cooling fitting for promoting cooling to the side surface of an injection molding jig. CONSTITUTION:Hollow yarn membrane filter materials 2 are aligned at the terminal parts thereof to be bundled into a group and received in a cylindrical case 3. Injection molding jigs 5 are fixed to both ends of the case 3 by clamps 6. A soild rod shaped cooling fitting 11 having good heat conductivity is pierced through and fixed to the hole provided to the side wall of the injection molding jig 5 and cooling fins 15 are integrally provided to the part protruded to the outside of the jig 5. In performing centrifugal injection molding, the heat of the resin generated in the jig 5 is directly dissipated into ambient temp. peripheral air by the cooling fitting 11 and the cooling fins 15 and, therefore, no damage due to heat accumulation is imparted to the filter materials.
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