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    • 4. 发明授权
    • Centrifugal casting apparatus for dentistry
    • 牙科离心铸造设备
    • US4280551A
    • 1981-07-28
    • US65102
    • 1979-08-09
    • Isao Ohara
    • Isao Ohara
    • A61C13/20B22D13/06B22D13/10
    • B22D13/063A61C13/20
    • A centrifugal casting apparatus for dentistry comprises a rotating member or platform for the mold having a mold disposed on one side thereof, a rotating member for the crucible movably positioned at the center of revolution of the said rotating member for the mold and provided with a crucible and a melting means, and a driving mechanism therefor, whereby metal for dentistry uses charged into the crucible is heated to be molten, while the mold is caused to rotate about the periphery of the crucible by means of the rotating member for the mold, and, after melting of the metal for dentistry uses is completed, the rotating member for the crucible is brought into engagement with the rotating member for the mold for rotation therewith where the metal in the molten state is cast from the crucible into the mold through impact force produced upon transmission of rotation as well as centrifugal force after initiation of rotation.
    • 一种用于牙科的离心铸造装置,包括:一个用于模具的转动件或平台,其一侧设置有一个模具,一个用于坩埚的旋转件可移动地定位在用于模具的所述旋转件的旋转中心处并设有坩埚 和熔化装置及其驱动机构,由此通过模具的旋转构件使模具围绕坩埚的周边旋转,从而加热被熔化的用于加入到坩埚中的牙科用金属,并且 在用于牙科用途的金属熔化完成后,用于坩埚的旋转构件与用于旋转的模具的旋转构件接合,其中熔融状态的金属通过冲击力从坩埚铸入模具中 在转动开始时产生的旋转以及旋转开始后的离心力。
    • 7. 发明申请
    • EXHAUST PIPE
    • 排气管
    • US20130058838A1
    • 2013-03-07
    • US13698187
    • 2011-05-16
    • Takao OnoderaYuuta KageyamaIsao Ohara
    • Takao OnoderaYuuta KageyamaIsao Ohara
    • F01N3/28
    • F01N3/2853F01N3/2066F01N3/2867F01N3/2892F01N2240/20F01N2570/18F01N2610/02
    • The present invention relates to an exhaust pipe, which prevents a reducing agent from penetrating a support member for an exhaust purification catalyst, and effectively prevents the exhaust purification catalyst from being damaged due to the expansion of the support member. An exhaust gas purification catalyst 30 for reducing and purifying nitrogenous compounds contained in exhaust gas discharged from an internal combustion engine, using a reducing agent, is provided on the inside of the exhaust pipe 10 via support member 20. A baffle portion 15 for preventing the reducing agent from penetrating the exhaust gas purification catalyst 30 is provided on the portion of the internal surface of the exhaust pipe 10, which is upstream side of the exhaust gas purification catalyst 30.
    • 排气管技术领域本发明涉及一种排气管,其防止还原剂渗入排气净化催化剂的支撑构件,并且有效地防止排气净化催化剂由于支撑构件的膨胀而损坏。 通过支撑部件20,在排气管10的内部设置有用于还原和净化从内燃机排出的排气中含氮化合物的排气净化催化剂30,该排气净化催化剂30使用还原剂。 排气净化催化剂30的上游侧的排气管10的内表面的部分设有还原剂渗透排气净化催化剂30。
    • 8. 发明授权
    • Casting apparatus for titanium or titanium alloy
    • 钛合金或钛合金铸造设备
    • US4700769A
    • 1987-10-20
    • US746101
    • 1985-06-18
    • Isao OharaSeizo Nakamura
    • Isao OharaSeizo Nakamura
    • B22D21/00B22D27/02
    • B22D21/005B22D27/02
    • Improved casting of titanum or alloy of titanium is obtained by using a crucible and a mold made of high-purity magnesium oxide and/or zirconium oxide. It is also possible for only the interior portion of the crucible to be made of such high-purity material, or for the mold to be made of copper or an alloy of copper. The mold and crucible can be used in a centrifugal-type casting machine or a compression-type casting machine. In either machine, discharge vents must be provided in the mold to connect the casting chamber with the outer atmosphere. An argon electric arc generated between a pivotable, tiltable cathode and an anode may be used for melting the titanium in the crucible. A high-frequency electric current can also be used to melt the titanium. By using the above apparatus, it is possible to obtain castings which are dimensionally accurate and do not have an external layer of fragile metal oxide or rough cavities.
    • 通过使用坩埚和由高纯度氧化镁和/或氧化锆制成的模具,可以获得钛或钛合金的改进铸造。 坩埚的内部部分也可以由这种高纯度材料制成,也可以由铜或铜合金制成。 模具和坩埚可用于离心式铸造机或压缩型铸造机。 在任一机器中,必须在模具中提供排气口以将铸造室与外部大气连接。 在可枢转的可倾斜阴极和阳极之间产生的氩电弧可用于熔化坩埚中的钛。 也可以使用高频电流来熔化钛。 通过使用上述装置,可以获得尺寸精确并且不具有脆弱的金属氧化物或粗糙空腔的外部层的铸件。