发明名称 PRODUCTION OF MOLDING HAVING OPTICAL REFLECTING SURFACE AND APPARATUS THEREFOR
摘要 PURPOSE:To manufacture a good quality molded body with no warpage by a method wherein molding is performed under the condition that the temperature of a fixed mold and that of a movable mold are set to be different from each other and heat insulating means is provided between both the molds. CONSTITUTION:Mold temperature controlling holes 7, 8 and 12 are provided in a fixed mold 1 and a movable mold 9. Further, parallel grooves 6 and 13 as heat insulating means are formed on the parting parts of the molds 1 and 9. Thus, temperature difference can be provided between the fixed mold 1 and the movable mold 9, resulting in allowing to mold a molded body with no warpage.
申请公布号 JPH0383620(A) 申请公布日期 1991.04.09
申请号 JP19890222481 申请日期 1989.08.29
申请人 OLYMPUS OPTICAL CO LTD 发明人 YAMADA MAKIO;MAEDA KAORU;KOBAYASHI HIROMASA;HAGA KENJI;MATSUKURA TOSHIO;YAMADA NOBORU
分类号 B29C45/00;B29C45/26;B29C45/73;B29L11/00 主分类号 B29C45/00
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