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    Round die type form rolling apparatus
    1.
    发明授权
    Round die type form rolling apparatus 有权
    圆形型轧机

    公开(公告)号：US06418767B2

    公开(公告)日：2002-07-16

    申请号：US09895313

    申请日：2001-07-02

    申请人： Toshinaka Shinbutsu ,  Minoru Yoshizawa ,  Shuichi Amano ,  Katsuyuki Nakata ,  Hiroshi Yoshikawa ,  Hiroshi Okino

    发明人： Toshinaka Shinbutsu ,  Minoru Yoshizawa ,  Shuichi Amano ,  Katsuyuki Nakata ,  Hiroshi Yoshikawa ,  Hiroshi Okino

    IPC分类号： B21H502

    CPC分类号： B21H1/00

    摘要： A round die type form rolling apparatus comprises: a pair of die moving blocks 15a, 15b rotatably supporting a pair of round dies 12a, 12b; four beam shafts 19 disposed around the rolling position of a work 33 being rolled by the round dies 12a, 12b and extending between the pair of die moving blocks 15a, 15b; and a push mechanism 20 for moving the pair of die moving blocks 15a, 15b toward each other. The die moving blocks 15a, 15b are moved, guided by the beam shafts 19, toward each other and the reaction forces generated between a pair of the round dies 12a, 12b by the rolling pressure are shared by the beam shafts 19 to prevent the round dies from escaping outwardly upwardly due to the reaction force from the work that is generated when the rolling pressure is applied to the work. This arrangement improves the machining precision of the work.

    摘要翻译： 一种圆模式轧制设备，包括：一对可移动地支撑一对圆形模具12a，12b的模具移动块15a，15b; 四个光束轴19设置在工件33的滚动位置周围，被圆形模具12a，12b卷绕并在一对模具移动块15a，15b之间延伸; 以及用于将一对模具移动块15a，15b朝向彼此移动的推动机构20。 模具移动块15a，15b由梁轴19引导彼此移动，并且通过轧制压力在一对圆形模具12a，12b之间产生的反作用力被梁轴19共享，以防止圆形 由于当轧制压力施加到工件时产生的作用的反作用力，模具向外向外逸出。 这种布置提高了加工的加工精度。

    Process for preparing macrocyclic ketones
    2.
    发明授权
    Process for preparing macrocyclic ketones 失效
    制备大环酮的方法

    公开(公告)号：US4700007A

    公开(公告)日：1987-10-13

    申请号：US824816

    申请日：1986-01-31

    申请人： Hiroshi Okino ,  Seiichi Uchida ,  Keita Matsushita

    发明人： Hiroshi Okino ,  Seiichi Uchida ,  Keita Matsushita

    IPC分类号： C07C49/385 ,  C07C45/00 ,  C07C45/45 ,  C07C45/61 ,  C07C45/65 ,  C07C45/67 ,  C07C49/487 ,  C07C67/00

    CPC分类号： C07C45/676 ,  C07C45/45 ,  C07C45/65

    摘要： An improvement in a process for preparing a macrocyclic ketone having from 12 to 18 carbon atoms which comprises intramolecular cyclization of a lower alcohol diester of a straight chain alkanedicarboxylic acid having from 12 to 18 carbon atoms by acyloin condensation and reduction of the resulting 2-hydroxycycloalkanone is disclosed. The improvement comprises conducting the acyloin condensation in a water-immiscible organic solvent having a boiling point of not lower than 40.degree.C., subjecting the resulting organic solvent solution containing the 2-hydroxycycloalkanone to reduction, and conducting the reduction in the copresence of said organic solvent and water. The macrocyclic ketone can be prepared at high efficiency.

    摘要翻译： 制备具有12至18个碳原子的大环酮的方法的改进，其包括通过偶姻缩合从而使具有12至18个碳原子的直链烷二羧酸的低级醇二酯的分子内环化并且所得2-羟基环烷酮的还原 被披露。 改进之处在于在沸点不低于40℃的与水不混溶的有机溶剂中进行偶姻缩合，将得到的含有2-羟基环烷酮的有机溶剂溶液进行还原，并进行所述 有机溶剂和水。 大环酮可以高效制备。