公开(公告)号：US5112577A

公开(公告)日：1992-05-12

申请号：US578998

申请日：1990-09-07

申请人： Hiroaki Nishio

发明人： Hiroaki Nishio

IPC分类号： B22F3/10 ,  C04B35/632 ,  C04B35/638 ,  C23G5/04

CPC分类号： B22F3/1025 ,  C04B35/632 ,  C04B35/638 ,  C23G5/04

摘要： An apparatus for removing the dispersion medium in a metal or ceramic molded body which comprises a dispersion medium-removing vessel includes a condensing zone located in a upper part and a boiling zone located in a lower part, a separator to separater a solvent in the dispersion medium solution discharged from the vessel by heating the solution at a temperature higher than the boiling point of the solvent to evaporate it, the boiling zone being connected with the separator through a pipe to transport the dispersion medium solution and a pipe to transport the vaporized solvent to form a circuit, and a pump provided in the circuit. In the apparatus since the dispersion medium is removed in the boiling solvent, keeping a constant temperature is easy. The dispersion medium is promptly removed by contacting it with a solution of which the concentration of the dispersion medium is always low due to continuous removal of the dispersion medium in the separator. Since the boiling point of the solvent is about 20.degree. to 150.degree. C., the molded body is gently heated. Therefore, the occurrence of defects such as cracks is rare in the molded body.

公开(公告)号：US5091222A

公开(公告)日：1992-02-25

申请号：US586801

申请日：1990-09-24

申请人： Hiroaki Nishio ,  Michitaka Sato ,  Keiji Watanabe

发明人： Hiroaki Nishio ,  Michitaka Sato ,  Keiji Watanabe

IPC分类号： C04B41/87 ,  B22F3/26 ,  C04B35/622 ,  C04B35/645 ,  C04B41/45 ,  C04B41/81 ,  C23C24/00

CPC分类号： C04B41/009 ,  B22F3/26 ,  C04B35/622 ,  C04B41/4535 ,  C04B41/4584 ,  C04B41/81

摘要： A method for forming a ceramic film comprises the steps of boiling a solution containing ceramics, dipping a base material into the solution, taking the base material out of the solution and drying the base material taken out of the solution in the presence of vapor of said boiling solution. The solution is a solution, in which ceramics is dispersed or dissolved. The solution is a solution, in which a precursor of ceramics is dispersed or dissolved.

公开(公告)号：US5080841A

公开(公告)日：1992-01-14

申请号：US538442

申请日：1990-06-15

申请人： Hiroaki Nishio

发明人： Hiroaki Nishio

IPC分类号： G01N33/20 ,  B22F3/14 ,  B22F3/15 ,  B30B11/00 ,  C04B35/645 ,  F27B17/00 ,  G01N33/38

CPC分类号： B22F3/15 ,  B30B11/001

摘要： In a hot isostatic pressing (HIP) method, only the probe of a dilatometer is set in the pressurized heating space of the HIP apparatus, and the probe is attached to a test piece having a greater specific surface area made of the same material as the body to be treated. The test piece is treated by HIP together with the body to be treated, and the beginning of the contraction of the test piece is detected by the dilatometer. Then, the body is densified by keeping the pressure and the temperature not lower than those at the beginning of contraction of the test piece. According to the method of the invention, since suitable HIP treating conditions are determined immediately, each body to be treated can be treated by only one HIP suitably without repeating the troublesome HIP process. Also, since the body can be treated by HIP without elevating the temperature beyond the necessary temperature, the crystal grain growth of the body to be treated can be inhibited.

公开(公告)号：US4935199A

公开(公告)日：1990-06-19

申请号：US380066

申请日：1989-07-14

申请人： Hiroaki Nishio ,  Keiji Watanabe ,  Michitaka Satoh

发明人： Hiroaki Nishio ,  Keiji Watanabe ,  Michitaka Satoh

IPC分类号： H01L21/302 ,  B22F3/12 ,  C03C8/14 ,  C03C8/16 ,  C04B35/645 ,  H01L21/3065

CPC分类号： B22F3/1266 ,  C03C8/14 ,  C03C8/16 ,  C04B35/6455

摘要： In a process for producing a sintered body using a gas-impermeable membrane formed by softening of a powder layer provided on the surface of a porous body, a metal polymer selected from polysilanes, polycarbosilanes, polysilazanes and hydrolyzates of metal alkoxides is added as a binder to the powder layer. According to the process of the invention, the gas-impermeable membrane is formed with high reliability, and high density sintered bodies can be obtained in a simple process.

摘要翻译： 在使用由多孔体表面上的粉末层软化而形成的不透气膜的烧结体的制造方法中，添加选自聚硅烷，聚碳硅烷，聚硅氮烷和金属醇盐的水解物的金属聚合物作为粘合剂 到粉末层。 根据本发明的方法，不可渗透膜形成的可靠性高，可以通过简单的工艺获得高密度烧结体。

公开(公告)号：US4927600A

公开(公告)日：1990-05-22

申请号：US105985

申请日：1987-10-08

申请人： Tsuneo Miyashita ,  Hiroaki Nishio ,  Kazuya Yabuta ,  Yoshio Takagi

发明人： Tsuneo Miyashita ,  Hiroaki Nishio ,  Kazuya Yabuta ,  Yoshio Takagi

IPC分类号： B30B11/00 ,  B22F3/04 ,  B22F3/12 ,  B28B7/34 ,  B30B5/02

CPC分类号： B22F3/1233 ,  B22F3/04 ,  B28B7/342 ,  Y10S264/78

摘要： The invention is concerned with the method of compression molding a metallic or ceramic powders. The method includes the step of maintaining a negative pressure within a first mold of noncompactable powders for intimately contacting on its inner surface a pouch-like member of thin-walled resilient material for producing a second mold, and the step of compactly charging starting powders into the second mold and exhausting air from and sealing the second mold, taking out a pre-molded body of the metallis or ceramic powders together with the second mold and the step of processing the pre-molded body by a cold or hot isostatic press.

摘要翻译： 本发明涉及压缩成型金属或陶瓷粉末的方法。 该方法包括在不可压缩的粉末的第一模具内保持负压以在其内表面上紧密接触薄壁弹性材料的袋状构件以产生第二模具的步骤，以及将起始粉末紧密地装入 第二模具和排出空气来自第二模具并且密封第二模具，与第二模具一起取出金属或陶瓷粉末的预成型体，以及通过冷或热等静压机加工预成型体的步骤。

公开(公告)号：US4843043A

公开(公告)日：1989-06-27

申请号：US163024

申请日：1988-03-02

申请人： Hiroaki Nishio

发明人： Hiroaki Nishio

IPC分类号： B22F3/12 ,  B22F3/14 ,  B22F3/15 ,  C04B35/589 ,  C04B35/593 ,  C04B35/645

CPC分类号： C04B35/645 ,  B22F3/125 ,  B22F3/1266 ,  C04B35/589 ,  C04B35/593 ,  C04B35/6455

摘要： A method is provided for manufacturing a sintered body comprising the steps of: heating a membrane of an inorganic polysilazane in liquid formed on the surface of a porous body to oxidize a surface portion of the layer into an oxide layer and still pyrolyzing the remaining of the inorganic polysilazane, the inorganic polysilazane having the formula of (--SiH.sub.2 NH--)n where n represents the degree of polymerization; softening the oxide layer to make it impermeable; and sintering the porous body with the oxide layer having impermeability at high pressure and at high temperature n of degree of polymerization ranges 6 to 25. The layer is of 0.5 to 2.0 mm in thickness.

公开(公告)号：US3935002A

公开(公告)日：1976-01-27

申请号：US457720

申请日：1974-04-03

申请人： Tsuneo Miyashita ,  Hiroaki Nishio

发明人： Tsuneo Miyashita ,  Hiroaki Nishio

IPC分类号： C21B5/06

CPC分类号： C21B5/06 ,  Y02P10/283

摘要： There is provided a method of blast furnace operation utilizing selective recycling of peripheral gas stream wherein the number of outlet ports for peripheral gas stream and the position of the gas outlet ports relative to the inlet ports for reducing gas are optimalized and the content of nitrogen in the recycling gas and the content of nitrogen in the reducing gas to be injected are controlled within the respective predetermined ranges.

摘要翻译： 提供了利用周边气流的选择性再循环的高炉操作的方法，其中用于外围气体流的出口的数量和气体出口相对于还原气体的入口的位置是最佳化的，并且氮的含量 将再循环气体和待喷射的还原气体中的氮含量控制在各自的预定范围内。

公开(公告)号：US6128822A

公开(公告)日：2000-10-10

申请号：US155832

申请日：1998-10-06

申请人： Hiroaki Nishio ,  Akira Kato

发明人： Hiroaki Nishio ,  Akira Kato

IPC分类号： C10B29/06 ,  C04B41/45 ,  C04B41/81 ,  F28F21/04 ,  B23P15/26

CPC分类号： C04B41/009 ,  C04B41/455 ,  C04B41/81 ,  C10B29/06 ,  F28F21/04 ,  Y10T29/49352 ,  Y10T29/49746

摘要： A method for repairing and/or reinforcing a bulkhead for a bulkhead type heat exchanger having a bulkhead formed of a permeable material comprising the steps of supplying a gas (G-1) containing a metal and/or a metallic compound to one side of the bulkhead, supplying to the other side thereof another gas (G-2) containing a reaction gas adapted to react with a metal and/or a metallic compound to deposit a solid metallic compound said gas (G-1) and said another gas (G-2) being caused to reach the inside of the bulkhead, and then causing said gas (G-1) to react with said another gas (G-2) so as to deposit a solid metallic compound inside the bulkhead, thereby repairing and/or reinforcing the bulkhead of the bulkhead type heat exchanger.

摘要翻译： PCT No.PCT / JP97 / 00311 Sec。 371 1998年10月6日第 102（e）日期1998年10月6日PCT 1997年2月7日PCT PCT。 第WO98 / 34997号公报 日期1998年8月13日一种用于修补和/或加强用于具有由可渗透材料形成的隔板的隔板式热交换器的隔板的方法，包括以下步骤：提供含有金属和/或金属化合物的气体（G-1） 向隔板的一侧供给另一个含有适于与金属和/或金属化合物反应的反应气体的气体（G-2），以沉积固体金属化合物，所述气体（G-1）和 所述另一气体（G-2）到达隔板内部，然后使所述气体（G-1）与所述另一种气体（G-2）反应，以将固体金属化合物沉积在舱壁内 从而修补和/或加强隔板型热交换器的隔板。

公开(公告)号：US5130196A

公开(公告)日：1992-07-14

申请号：US591508

申请日：1990-10-01

申请人： Hiroaki Nishio ,  Takeshi Noma

发明人： Hiroaki Nishio ,  Takeshi Noma

IPC分类号： B01D39/16 ,  D01D5/32 ,  D01D5/34 ,  D01F6/04 ,  D01F6/46 ,  D01F8/06 ,  D04H1/541

CPC分类号： D01F8/06 ,  Y10T428/24826 ,  Y10T428/2929 ,  Y10T428/2931 ,  Y10T428/2933 ,  Y10T428/2967 ,  Y10T442/638 ,  Y10T442/642

摘要： Easily processable, polyolefin hot-melt adhesive conjugate fibers which are unnecessary to apply any oiling agent at the time of spinning and drawing steps, and a formed product such as non-woven fabric, filter for water treatment, etc. obtained by heat-treating the conjugate fibers are provided, which conjugate fibers comprise polyolefin hot-melt adhesive conjugate fibers composed of two different kinds of polyolefins having different melting points by 20.degree. C. or more and constituted so that the lower melting polyolefin can occupy at least one portion of the fiber surface, the lower melting polyolefin having monoglyceride of 12C or more fatty acid in 3 to 10 weight % incorporated thereinto.

公开(公告)号：US5073330A

公开(公告)日：1991-12-17

申请号：US560679

申请日：1990-07-31

申请人： Hiroaki Nishio ,  Keiji Watanabe ,  Michitaka Sato

发明人： Hiroaki Nishio ,  Keiji Watanabe ,  Michitaka Sato

IPC分类号： B29C49/00 ,  B29C51/00 ,  B29C70/58

CPC分类号： B29C70/58 ,  B29C49/0005 ,  B29C51/002 ,  B29C2049/069 ,  B29K2083/00 ,  B29K2709/02

摘要： A method of molding polysilazane which includes heating a liquid sheet composed of liquid polysilazane alone or containing not more than 30 wt. % of a ceramic powder or a ceramic precursor to form a highly viscous sheet having a viscosity coefficient of 10.sup.4 to 10.sup.6 poise, fitting the highly viscous sheet to a forming mold, and heating to set the sheet. According to the method of the invention, molded bodies are easily obtained which have relatively uniform thickness, and are excellent in transferability, homogeneous and show less defects.