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    • 1. 发明授权
    • Pilger die, pilger mandrel, the manufacturing method thereof, and dashpot tube for nuclera fuel assembly
    • PILGER DIE,PILGER MANDREL,其制造方法和用于NUCLERA燃料组件的DASHPOT TUBE
    • KR101104648B1
    • 2012-01-16
    • KR20100095317
    • 2010-09-30
    • KEPCO NUCLEAR FUEL CO LTD
    • KIM SUN DOOPARK CHAN HYUNKIM IN KYUPARK KI BUMLEE SEUNG HWAN
    • G21C3/30G21C3/326
    • G21C21/00B21B21/00
    • PURPOSE: A nuclear fuel impact absorption pipe is provided to perform a second pass step using a pilger apparatus which has performed a pilgering process of a first pass step in the pilger apparatus, thereby improving productivity of the impact absorption pipe. CONSTITUTION: A plastic work part is arranged by grinding the outer circumference of a pilger die(100) in a groove radius. A measurement establishment part is arranged by being grinded from a terminal position of the plastic work part. A roll off part is arranged by being grinded from a terminal position of the measurement establishment part to a position touched by a pocket part. The pocket part is connected to the roll off part and plastic work part. A pilger groove(110) includes an upper end expansion part arranged with the radius of an upper end expansion circle.
    • 目的:提供一种核燃料冲击吸收管,以使用在打孔装置中进行第一通过步骤的打孔处理的打孔设备进行第二通过步骤,从而提高冲击吸收管的生产率。 构成:通过在凹槽半径中研磨打孔器模具(100)的外圆周来布置塑料加工部件。 通过从塑料加工部件的终端位置研磨测量建立部件。 通过从测量建立部件的终端位置研磨到由口袋部分触摸的位置来布置滚落部分。 口袋部分连接到卷边部分和塑料加工部分。 引导槽(110)包括以上端膨胀圆的半径布置的上端膨胀部件。