| 摘要 |
An improved molding apparatus for injection-compression molding thermosetting materials is described. The apparatus comprises a stationary platen assembly, a moveable platen assembly and a feed nozzle assembly. The stationary assembly is comprised of a stationary platen member, a heated plate mounted on the support plate and a plurality of mold faces mounted on the heat plate. The movable assembly is comprised of a moveable platen member, a heated plate mounted thereon and a plurality of mold faces mounted on the heat plate aligned with the mold faces on the stationary assembly. The feed, or injection, nozzle assembly is comprised of a cylindrical nozzle member, having an internal temperature controlling means, and a plurality of feed outlets positioned on the periphery. The temperature maintained in the nozzle member is sufficiently high to maintain the thermosetting molding material within the nozzle member in a plasticized state and sufficiently low that no substantial curing or setting-up of the thermosetting molding material within the nozzle member in a plasticized state and sufficiently low that no substantial curing or setting-up of the thermosetting molding material takes place.
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