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    Method of producing high purity zirconia powder from zircon powder
    2.
    发明授权
    Method of producing high purity zirconia powder from zircon powder 失效
    从锆石粉生产高纯度氧化锆粉末的方法

    公开(公告)号：US4755365A

    公开(公告)日：1988-07-05

    申请号：US914020

    申请日：1986-10-01

    Applicant: Toshihiko Funahashi ,  Ryoji Uchimura ,  Yukio Oguchi ,  Kenichi Ueda

    Inventor： Toshihiko Funahashi ,  Ryoji Uchimura ,  Yukio Oguchi ,  Kenichi Ueda

    IPC: C01G25/02

    CPC classification number: C01G25/02 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2004/80 ,  C01P2006/10 ,  C01P2006/80

    Abstract: In producing zirconia powder by desiliconizing heat treatment of a mixture of zircon powder and a powdery carbon-containing material, optionally with addition of a zirconia stabilizing oxide such as calcia or yttria, in a nonoxidizing atmosphere the conversion of silica into SiO and dissipation of gaseous SiO are promoted and completed by performing the heat treatment under reduced pressure, viz. at a pressure not higher than 0.6 atm. Zirconia powder of very high purity can surely be obtained, even when a large batch of the raw material mixture is treated, by performing the reduced pressure desiliconizing heat treatment in two stages: first at 1200.degree.-1550.degree. C. until almost complete conversion of silica to SiO and then at 1550.degree.-2000.degree. C. The mole ratio of C to SiO.sub.2 in the raw material mixture must be 0.4-2.0. For further enhancement of purity, zirconia powder obtained by the desiliconizing treatment may be subjected to oxidation heat treatment. Efficiency of the desiliconizing heat treatment can be enhanced by precedingly forming the raw material mixture into porous lump(s) whose bulk density is in the range from 0.7 to 2.0.

    Abstract translation: 在通过对锆石粉末和含粉状碳材料的混合物进行脱硅热处理来生产氧化锆粉末中，任选地在非氧化气氛中加入氧化锆稳定氧化物如氧化钙或氧化钇，将二氧化硅转化为SiO和气态 通过在减压下进行热处理来促进和完成SiO。 压力不大于0.6atm。 即使大批原料混合物被处理，也可以分两步进行减压脱硅热处理：首先在1200〜-1550℃直至几乎完全转化 二氧化硅至SiO，然后在1550°-2000℃。原料混合物中C与SiO 2的摩尔比必须为0.4-2.0。 为了进一步提高纯度，可以对通过脱硅处理获得的氧化锆粉末进行氧化热处理。 可以通过将原料混合物先前成型为堆积密度为0.7-2.0的多孔块来提高脱硅热处理的效率。

    Method of denitriding a high chromium molten steel with a minimum chromium loss
    4.
    发明授权
    Method of denitriding a high chromium molten steel with a minimum chromium loss 失效
    以最低铬损失脱氮高铬钢水的方法

    公开(公告)号：US4154602A

    公开(公告)日：1979-05-15

    申请号：US872993

    申请日：1978-01-27

    Applicant: Hiroyuki Kaito ,  Takashi Ohtani ,  Shoji Iwaoka ,  Yukio Oguchi ,  Shuya Yano ,  Akio Ejima

    Inventor： Hiroyuki Kaito ,  Takashi Ohtani ,  Shoji Iwaoka ,  Yukio Oguchi ,  Shuya Yano ,  Akio Ejima

    IPC: C21C7/00 ,  C21C7/04 ,  C21C7/068 ,  C21C7/10 ,  C22C33/00

    CPC classification number: C21C7/0685 ,  C21C7/04 ,  C21C7/10

    Abstract: A method of denitriding a high chromium molten steel with a minimum chromium loss is disclosed. A high chromium molten steel containing 0.8-2.5% of C and 10-35% of Cr is denitrided to a final nitrogen content of not more than 40 ppm in a ladle under vacuum by flowing an inert gas into molten steel at a flow rate of not less than 15 Nl/min per ton of molten steel and at the same time blowing oxygen gas against molten steel until carbon content [C] in molten steel satisfies the following equations (1) and (2) in accordance with the carbon content prior to decarburization [C] of molten steel:[C].ltoreq.[C] 0.3, when 0.8.ltoreq.[C].ltoreq.1.0% (1)[c].ltoreq.55/70[c]--6/70, when 1.0.ltoreq.[C].ltoreq.2.5% (2).

    Abstract translation: 公开了一种对具有最低铬损失的高铬钢水进行脱氮的方法。 含有0.8-2.5％C和10-35％Cr的高铬钢水在真空下在钢包中通过将惰性气体流入钢水中以最大氮含量不超过40ppm进行脱氮，流速为 每吨钢水不低于15Nl / min，同时对钢水吹入氧气，直到钢水中的碳含量[C]满足以下等式（1）和（2） 钢水脱碳[C]：

    Apparatus for controlling operation of an industrial robot
    6.
    发明授权
    Apparatus for controlling operation of an industrial robot 失效
    用于控制工业机器人的操作的装置

    公开(公告)号：US4587618A

    公开(公告)日：1986-05-06

    申请号：US483303

    申请日：1983-04-08

    Applicant: Yukio Oguchi

    Inventor： Yukio Oguchi

    IPC: B25J9/16 ,  B25J9/18 ,  B25J9/22 ,  B65G47/90 ,  G05B19/18 ,  G05B19/23 ,  G05B19/4155 ,  B25J13/00 ,  G05B19/42

    CPC classification number: B65G47/905 ,  B25J9/161 ,  G05B19/231 ,  G05B2219/34388

    Abstract: An apparatus for controlling operation of an industrial robot having a drive source for moving an arm to a preset position to effect operation under the control of a program. The position of the arm is detected and an output in the form of an electric signal is generated by a detector. A memory stores a position signal corresponding to a prescribed position ahead of the preset position. A comparator compares signals from the electronic detector and the memory and issues a position completion signal irrespective of arm movement when the arm reaches the prescribed position. The detector, memory and comparator are added in parallel to an arm driver unit, whereby the program can proceed while the arm is being moved.

    Abstract translation: 一种用于控制具有用于将臂移动到预设位置的驱动源的工业机器人的操作的装置，以在程序的控制下进行操作。 检测到臂的位置，并且由检测器产生电信号的形式的输出。 存储器存储与预设位置之前的规定位置相对应的位置信号。 当臂到达规定位置时，比较器比较来自电子检测器和存储器的信号，并发出位置完成信号，而不管臂的移动。 检测器，存储器和比较器与臂驱动器单元并联，从而程序可以在手臂移动时进行。

    Method for manufacturing fine-grained silicon monoxide
    8.
    发明授权
    Method for manufacturing fine-grained silicon monoxide 失效
    用于制造细粒硅氧烷的方法

    公开(公告)号：US5096685A

    公开(公告)日：1992-03-17

    申请号：US561235

    申请日：1990-07-27

    Applicant: Toshihiko Funahashi ,  Kenichi Ueda ,  Ryoji Uchimura ,  Yukio Oguchi

    Inventor： Toshihiko Funahashi ,  Kenichi Ueda ,  Ryoji Uchimura ,  Yukio Oguchi

    IPC: B01J3/00 ,  C01B33/113 ,  C01F7/38 ,  C01F11/22 ,  C01G25/02

    CPC classification number: B82Y30/00 ,  C01B33/113 ,  C01F11/22 ,  C01F7/38 ,  C01G25/02 ,  C01P2004/04 ,  C01P2004/64 ,  C01P2006/80

    Abstract: A system for manufacturing fine-grained SiO powder includes means for heating a mixture of an SiO.sub.2 containing material and an Si and/or C containing material for generating SiO vapor, and for condensing the generated SiO vapor from a gaseous state in the presence of non-oxidizing gas and under substantially low pressure. Preferably, vacuum is maintained at the position where thermal reaction generates SiO vapor. Non-oxidizing gas serves for transferring vapor-state SiO and/or fine-grained SiO powder to an SiO collection chamber. This successfully prevents the SiO from being accumulated within a transfer pipe or duct and thus prevents the pipe or duct from being blocked. Furthermore, substantially low pressure (vacuum) atmosphere encourages SiO vapor generation from the reagent mixture and thus permits a lower heating temperature to cause SiO vapor generation.

    Abstract translation: 用于制造细粒度SiO粉末的系统包括用于加热含SiO 2的材料和用于产生SiO蒸气的含Si和/或C的材料的混合物的装置，并且用于在非存在的情况下将产生的气态气体从气态冷凝 氧化气体并且在基本上低的压力下。 优选地，在热反应产生SiO蒸气的位置处保持真空。 非氧化气体用于将蒸气态SiO和/或细粒度的SiO粉末转移到SiO收集室。 这成功地防止了SiO在传输管道或管道中积聚，从而防止管道或管道被堵塞。 此外，基本上低压（真空）气氛促进了来自试剂混合物的SiO蒸气的产生，从而允许较低的加热温度产生SiO蒸气。

    Method of stirring molten metal and refractory cylinder for the purpose
    9.
    发明授权
    Method of stirring molten metal and refractory cylinder for the purpose 失效
    用于搅拌熔融金属和耐火材料缸的方法

    公开(公告)号：US4452634A

    公开(公告)日：1984-06-05

    申请号：US437514

    申请日：1982-10-29

    Applicant: Yukio Oguchi ,  Norio Sumida ,  Tetsuya Fujii ,  Toshihiko Emi ,  Toshio Fujimura ,  Arata Ueda

    Inventor： Yukio Oguchi ,  Norio Sumida ,  Tetsuya Fujii ,  Toshihiko Emi ,  Toshio Fujimura ,  Arata Ueda

    IPC: B01F5/10 ,  B01F11/00 ,  C21C7/00 ,  C21C7/10 ,  C22B9/02 ,  C22B21/00 ,  F27D27/00 ,  C22B9/00

    CPC classification number: F27D27/00 ,  B01F11/0071 ,  B01F11/0074 ,  B01F5/10 ,  C21C7/0037 ,  C21C7/10 ,  C22B21/0084 ,  C22B9/02 ,  F27D27/007 ,  Y02P10/234

    Abstract: A method of stirring molten metal by repeatedly sucking and rapidly discharging part of the molten metal into and out of a refractory cylinder having a lower opening end immersed in the molten metal in a ladle, comprises operating the stirring under a condition that an inner diameter (d) of the refractory cylinder is less than 1,000 mm, a relation between the inner diameter (d, mm) of the refractory cylinder and weight (W, ton) of the molten metal in the ladle is d/W.sup.0.5 >30, and an immersed depth of the refractory cylinder is within 200-700 mm. A pressurized gas for discharging the sucked molten metal out of the cylinder is introduced thereinto in an inclined direction relative to a vertical line against a point on an opposite inner wall of the cylinder at least 500 mm above the maximum suction level of the molten metal in the cylinder.A refractory cylinder operated in the above manner according to the invention comprises a flange connection between an uppermost and an intermediate cylinder parts of the cylinder at a location higher than the maximum suction height of the molten metal and a further flange connection between the intermediate cylinder part and a lowermost cylinder part. The refractory cylinder comprises at its immersed end a flow restricting opening to obtain more strong stirring the molten metal.

    Abstract translation: 通过将熔融金属的一部分反复吸入并快速排出浸入熔融金属中的较低开口端的耐火圆筒放入钢包中来搅拌熔融金属的方法包括在内径（ 耐火材料圆筒的d）小于1000mm，钢包中熔融金属的重量（W，ton）之间的关系为d / W0.5> 30， 耐火材料缸的浸入深度在200-700mm之内。 用于将吸出的熔融金属从气缸中排出的加压气体相对于垂直线倾斜的方向被引入到相对于气缸的相对的内壁上的点上方的熔融金属的最大吸入水平以上至少500mm 气瓶。 按照本发明以上述方式操作的耐火材料圆筒包括在高于熔融金属的最大吸入高度的位置处的气缸的最上部和中间气缸部分之间的凸缘连接，以及中间气缸部分 和最下面的气缸部分。 耐火材料缸在其浸入端包括流动限制开口以获得更强烈的搅拌熔融金属。

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