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    Method of manufacturing plug used to pierce and roll metal material, method of manufacturing metal pipe and plug used to pierce and roll metal material
    7.
    发明授权
    Method of manufacturing plug used to pierce and roll metal material, method of manufacturing metal pipe and plug used to pierce and roll metal material 有权
    制造用于刺穿和轧制金属材料的插头的方法，用于刺穿和轧制金属材料的金属管和塞子的制造方法

    公开(公告)号：US08065900B2

    公开(公告)日：2011-11-29

    申请号：US12533390

    申请日：2009-07-31

    申请人： Yasuyoshi Hidaka ,  Naoya Hirase ,  Yasuhiro Kouchi

    发明人： Yasuyoshi Hidaka ,  Naoya Hirase ,  Yasuhiro Kouchi

    IPC分类号： B21B19/04

    CPC分类号： B21B25/00 ,  B21B19/04 ,  C23C8/14

    摘要： A plug material having a prescribed shape is prepared, the prepared plug material is thermally treated in a heat treatment atmosphere that contains at least 1.0 vol. % oxygen at a heat treatment temperature of at least 950° C. and less than 1050° C. and thus a plug having an oxide scale layer 30 on the surface is manufactured. According to the manufacturing method, pores PO that extend along the surface SF of the plug material are formed under outer scale layer 20 in the oxide scale layer 30, which allows cracks to be more easily propagated in the outer scale layer 20. Therefore, the outer scale layer 20 is more easily peeled off than the conventional one.

    摘要翻译： 制备具有规定形状的塞子材料，将所制备的塞子材料在包含至少1.0体积％的热处理气氛中进行热处理。 在氧化处理温度为至少950℃且低于1050℃的氧气中制造氧，因此制造了表面上具有氧化皮层30的塞子。 根据制造方法，在氧化皮层30中的外标尺层20上形成有沿插塞材料的表面SF延伸的孔PO，这允许裂纹在外标尺层20中更容易传播。因此， 外标层20比常规剥离更容易。

    METHOD OF MANUFACTURING PLUG USED TO PIERCE AND ROLL METAL MATERIAL, METHOD OF MANUFACTURING METAL PIPE AND PLUG USED TO PIERCE AND ROLL METAL MATERIAL
    8.
    发明申请
    METHOD OF MANUFACTURING PLUG USED TO PIERCE AND ROLL METAL MATERIAL, METHOD OF MANUFACTURING METAL PIPE AND PLUG USED TO PIERCE AND ROLL METAL MATERIAL 有权
    制造用于金属和金属材料的电极的方法，制造用于金属和金属材料的金属管和插入物的方法

    公开(公告)号：US20100018281A1

    公开(公告)日：2010-01-28

    申请号：US12533390

    申请日：2009-07-31

    申请人： YASUYOSHI HIDAKA ,  Naoya Hirase ,  Yasuhiro Kouchi

    发明人： YASUYOSHI HIDAKA ,  Naoya Hirase ,  Yasuhiro Kouchi

    IPC分类号： B21B23/00 ,  B21K5/00

    CPC分类号： B21B25/00 ,  B21B19/04 ,  C23C8/14

    摘要： A plug material having a prescribed shape is prepared, the prepared plug material is thermally treated in a heat treatment atmosphere that contains at least 1.0 vol. % oxygen at a heat treatment temperature of at least 950° C. and less than 1050° C. and thus a plug having an oxide scale layer 30 on the surface is manufactured. According to the manufacturing method, pores PO that extend along the surface SF of the plug material are formed under outer scale layer 20 in the oxide scale layer 30, which allows cracks to be more easily propagated in the outer scale layer 20. Therefore, the outer scale layer 20 is more easily peeled off than the conventional one.

    摘要翻译： 制备具有规定形状的塞子材料，将所制备的塞子材料在含有至少1.0体积％的热处理气氛中进行热处理。 在氧化处理温度为至少950℃且低于1050℃的氧气中制造氧气，因此制造了表面上具有氧化皮层30的塞子。 根据制造方法，在氧化皮层30中的外标尺层20上形成有沿插塞材料的表面SF延伸的孔PO，这允许裂纹在外标尺层20中更容易传播。因此， 外标层20比常规剥离更容易。

    Piercing mill
    9.
    发明授权
    Piercing mill 有权
    穿孔机

    公开(公告)号：US08104316B2

    公开(公告)日：2012-01-31

    申请号：US12568698

    申请日：2009-09-29

    申请人： Naoya Hirase ,  Tomio Yamakawa ,  Kazuhiro Shimoda

    发明人： Naoya Hirase ,  Tomio Yamakawa ,  Kazuhiro Shimoda

    IPC分类号： B21B19/04

    CPC分类号： B21B19/04 ,  B21B23/00 ,  B21B39/165

    摘要： A piercing mill includes a plurality of inclined rolls, a plug, a pusher, and an undriven guide roll. The pusher pushes a round billet from the rear end at least until the round billet advances for a prescribed distance after contacting the inclined rolls. The guide roll is between the inclined rolls and the pusher and includes a roll shaft and a roll surface, with the roll shaft arranged obliquely with respect to a pass line PL. The sectional shape of the roll surface is a concave arch shape. The round billet is rotated by the guide roll and the friction force generated when the round billet contacts the inclined rolls is reduced. Consequently, the wear of the inclined rolls can be restrained if the round billet is pierced and rolled while it is pushed in between the inclined rolls using the pusher.

    摘要翻译： 穿孔机包括多个倾斜辊，塞子，推动器和未驱动的引导辊。 推动器从后端推动圆钢坯至少直到圆钢坯在接触倾斜辊之后前进一段规定的距离。 引导辊位于倾斜辊和推动器之间，并且包括辊轴和辊表面，辊轴相对于通过线PL倾斜布置。 辊表面的截面形状是凹拱形状。 圆钢坯被导向辊旋转，并且当圆钢坯接触倾斜辊时产生的摩擦力减小。 因此，如果圆钢坯在使用推动器推入倾斜辊之间的同时被冲压并滚动，则可以抑制倾斜辊的磨损。

    PIERCING MILL
    10.
    发明申请
    PIERCING MILL 有权
    起重机

    公开(公告)号：US20100011831A1

    公开(公告)日：2010-01-21

    申请号：US12568698

    申请日：2009-09-29

    申请人： Naoya Hirase ,  Tomio Yamakawa ,  Kazuhiro Shimoda

    发明人： Naoya Hirase ,  Tomio Yamakawa ,  Kazuhiro Shimoda

    IPC分类号： B21B39/14

    CPC分类号： B21B19/04 ,  B21B23/00 ,  B21B39/165

    摘要： A piercing mill includes a plurality of inclined rolls, a plug, a pusher, and an undriven guide roll. The pusher pushes a round billet from the rear end at least until the round billet advances for a prescribed distance after contacting the inclined rolls. The guide roll is between the inclined rolls and the pusher and includes a roll shaft and a roll surface, with the roll shaft arranged obliquely with respect to a pass line PL. The sectional shape of the roll surface is a concave arch shape. The round billet is rotated by the guide roll and the friction force generated when the round billet contacts the inclined rolls is reduced. Consequently, the wear of the inclined rolls can be restrained if the round billet is pierced and rolled while it is pushed in between the inclined rolls using the pusher.

    摘要翻译： 穿孔机包括多个倾斜辊，塞子，推动器和未驱动的引导辊。 推动器从后端推动圆钢坯至少直到圆钢坯在接触倾斜辊之后前进一段规定的距离。 引导辊位于倾斜辊和推动器之间，并且包括辊轴和辊表面，辊轴相对于通过线PL倾斜布置。 辊表面的截面形状是凹拱形状。 圆钢坯被导向辊旋转，并且当圆钢坯接触倾斜辊时产生的摩擦力减小。 因此，如果圆钢坯在使用推动器推入倾斜辊之间的同时被冲压并滚动，则可以抑制倾斜辊的磨损。