公开(公告)号：EP1724084A1

公开(公告)日：2006-11-22

申请号：EP05720130.3

申请日：2005-03-07

申请人： SUMITOMO HEAVY INDUSTRIES, LTD. ,  SEIKOH GIKEN Co., Ltd.

发明人： SAWAISHI, Hiroyuki, SUMITOMO HEAVY INDUSTRIES, LTD ,  GOTO, Yoshiyuki, SEIKOH GIKEN CO., LTD.

IPC分类号： B29C33/42 ,  G11B7/26 ,  B29L17/00

CPC分类号： B29C45/14639 ,  B29C45/2632 ,  B29C2045/2667 ,  G11B7/263

摘要： A mold for molding a disk and a method of molding a disk substrate which can enhance flatness and thus quality of a molded product are provided. The mold for molding a disk includes a first mirror-surface disk; a stamper (29) attached to the first mirror-surface disk; a second mirror-surface disk disposed in opposition to the first mirror-surface disk and forming a cavity therebetween at the time of mold clamping; and an adjustment member having a surface allowing the stamper (29) to slide thereon, formed near an outer circumference of the first mirror-surface disk, extending radially outward, and projecting toward the cavity. Even when, during the entire disk substrate being cooled, shrinkage of the disk substrate near the outer circumference thereof is small, whereas shrinkage of the remaining portion thereof is large, an increase in thickness of the disk substrate near the outer circumference thereof can be prevented.

摘要翻译： 提供了一种用于模制盘的模具和一种可以提高模制产品的平整度和质量的盘形基板的成型方法。 用于成型盘的模具包括：第一镜面盘; 附接到所述第一镜面盘的压模（29）; 第二镜面盘与第一镜面盘相对设置并且在夹紧时形成腔; 以及具有允许压模（29）在其上滑动的表面的调节构件，其形成在第一镜面盘的外周附近，径向向外延伸并朝向空腔突出。 即使在整个盘基板被冷却时，盘基板的外周附近的收缩也很小，其余部分的收缩较大，可以防止其外周附近的盘基板的厚度增加 。