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1. 发明授权

US4564499A Method of inhibiting corrosion of carbon steel piping of condensate and feed water systems in power generating plant 失效
标题翻译：发电厂冷凝水和给水系统碳钢管道腐蚀抑制方法
公开(公告)号：US4564499A
公开(公告)日：1986-01-14
申请号：US666033
申请日：1984-10-29
申请人： Takashi Honda , Akira Minato , Masakiyo Izumiya , Eizi Kashimura , Katsumi Ohsumi
发明人： Takashi Honda , Akira Minato , Masakiyo Izumiya , Eizi Kashimura , Katsumi Ohsumi
IPC分类号： G21D1/00 , C23F13/00 , C23F14/00 , C23F15/00 , F28F19/00 , G21C9/00
CPC分类号： C23F15/00
摘要： A method of inhibiting corrosion of carbon steel piping of condensate and feed water systems in a power generating plant, characterized by continuing the water in said piping to flow after also said plant has been shut down until it is restarted up and by keeping the specific electric conductivity of flowing water at 0.5 .mu.S/cm or less.
摘要翻译：一种抑制发电厂冷凝水和给水系统碳钢管道腐蚀的方法，其特征在于，所述管道中的水在所述设备已被关闭之后继续流动，直到其重新启动并且通过保持特定的电流动水的电导率为0.5μS/ cm以下。

2. 发明授权

US4722823A Nuclear power plant providing a function of suppressing the deposition of radioactive substance 失效
标题翻译：提供抑制放射性物质沉积功能的核电站
公开(公告)号：US4722823A
公开(公告)日：1988-02-02
申请号：US525889
申请日：1983-08-24
申请人： Takashi Honda , Toshio Kawakami , Masakiyo Izumiya , Akira Minato , Katsumi Ohsumi
发明人： Takashi Honda , Toshio Kawakami , Masakiyo Izumiya , Akira Minato , Katsumi Ohsumi
IPC分类号： G21D1/00 , G21C13/087 , G21C13/10 , G21F9/00 , G21C11/00
CPC分类号： G21C13/087 , G21C13/10 , Y02E30/40
摘要： A nuclear power plant using a structural material consisting of metal which comes into contact with a liquid in which radioactive substances are dissolved has a function to suppress the deposition of the radioactive substances. In this function, metal elements constituting the surface layer of the structural material which comes into contact with the liquid are oxidized by injecting oxidizing agents from outside, thereby preliminarily producing an oxide film. The oxidizing agents comprise at least one kind selected from the group consisting of oxygen, hydrogen peroxide, chromate, nitrite, molybdate, tungstate and ferrate. Particularly, by suppressing the deposition of radioactive substances on a stainless steel, the dose rate of exposure of workers is effectively reduced.
摘要翻译：使用与溶解有放射性物质的液体接触的金属构成的结构材料的核电站具有抑制放射性物质沉积的功能。在该功能中，构成与液体接触的结构材料的表面层的金属元素通过从外部注入氧化剂而被氧化，从而预先生成氧化膜。氧化剂包括选自氧，过氧化氢，铬酸盐，亚硝酸盐，钼酸盐，钨酸盐和高铁酸盐中的至少一种。特别是通过抑制放射性物质在不锈钢上的沉积，有效地降低了工作人员的接触剂量。

3. 发明授权

US5203984A Monitoring system for plant operation condition and its in-situ electrochemical electrode 失效
标题翻译：植物营养条件监测系统及其现场电化学电极
公开(公告)号：US5203984A
公开(公告)日：1993-04-20
申请号：US573780
申请日：1990-08-28
申请人： Masanori Sakai , Katsumi Mabuchi , Toshiaki Arato , Takuya Takahashi , Masakiyo Izumiya , Isao Masaoka , Yoshitaka Kojima , Masahisa Inagaki , Katsumi Ohsumi , Makoto Hayashi , Fumio Sato , Masateru Suwa , Kimihiko Akahori
发明人： Masanori Sakai , Katsumi Mabuchi , Toshiaki Arato , Takuya Takahashi , Masakiyo Izumiya , Isao Masaoka , Yoshitaka Kojima , Masahisa Inagaki , Katsumi Ohsumi , Makoto Hayashi , Fumio Sato , Masateru Suwa , Kimihiko Akahori
IPC分类号： G01N17/02 , G01N27/26 , G01N27/27 , G01N27/30 , G01N27/333 , G01N27/401 , G01N27/403 , G01N27/416 , G01N27/48 , G01N33/18 , G21C17/02 , G21C17/022
CPC分类号： G01N27/30 , G01N33/18 , G21C17/022 , Y10S706/906
摘要： A plant operational status monitoring supervisory system comprising; means for extracting information directly relating to water quality of an objective portion consecutively for a period of time by means of an electrochemical water quality sensor installed in an objective portion to monitor in-situ in a plant; means for evaluating water quality based on thus extracted information; means for comparing an obtained water quality evaluation result with a reference value for a predetermined plant operation procedure; and means for displaying or storing necessary portion out of said comparison results; is disclosed.An electrochemical reference electrode used in this system being provided with an electrolyte layer containing ion of the electrode member; a porous ceramic layer surrounding the same without permeating liquid; and electrode member electrochemically contacting with said elec-trolyte layer; and a terminal electrically contacting with said electrode member; and further having a long life in high temperature water, various status of high temperature water in objective portions and that of nearby constituent members in a plant are possible to be monitored online by means of this reference electrode.Further, because monitored data are processed by means of a neural network, the higher precision level of monitoring has been achieved.

4. 发明授权

US4461346A Feedwater heater 失效
标题翻译：给水加热器
公开(公告)号：US4461346A
公开(公告)日：1984-07-24
申请号：US306234
申请日：1981-09-28
申请人： Yoshiyuki Hoshino , Shyuichi Imazu , Masahiko Miyai , Yoshikuni Oshima , Masakiyo Izumiya
发明人： Yoshiyuki Hoshino , Shyuichi Imazu , Masahiko Miyai , Yoshikuni Oshima , Masakiyo Izumiya
IPC分类号： F22D1/32 , F28B9/10 , F28D7/06 , F28F9/02 , F28F9/22
CPC分类号： F28D7/06 , F22D1/32 , F28B9/10 , F28F9/0202 , Y10S165/211
摘要： A horizontal feedwater heater for use in heat power stations, of the type having a shell, a plurality of U-bent heat transfer tubes extended in the longitudinal direction of the shell and a vent tube extended in the longitudinal direction of the shell substantially at the center of the latter and adapted for extracting and discharging non-condensed gas. The feedwater heater has a baffle disposed at each side of the vent tube and having a horizontal plate portion extended horizontally from the vent tube and an inclined plate portion inclined downwardly from the end of the horizontal plate portion at an obtuse angle to the latter. The length of projection of the baffle from the vent tube is varied along the length of the shell in accordance with the ratio of amount of heat exchanged between the steam and feedwater in each axial section of the tube nest connected to the water inlet to the amount of heat exchanged between these fluids in the corresponding tube nest section of the feedwater outlet side, thereby to permit an efficient extraction of the non-condensed gas. The structural members connectable with the heating steam is made from a low alloy steel containing more than 1% of Cr to exhibit a high corrosion resistance.
摘要翻译：一种用于热发电站的水平给水加热器，具有壳体的类型，沿壳体的纵向方向延伸的多个U形弯曲的传热管，以及沿壳体的纵向方向延伸的通风管，后者的中心，适用于提取和排出非冷凝气体。给水加热器具有设置在通气管的每一侧的挡板，具有从通气管水平延伸的水平板部分和从水平板部分的端部向下倾斜向下倾斜的倾斜板部分。挡板从排气管突出的长度随壳体长度而变化，这是根据连接到进水口的管巢的每个轴向部分中的蒸汽和给水之间交换的热量之比，在给水出口侧的相应管座部分中的这些流体之间换热的热量，从而有效地提取非冷凝气体。与加热蒸汽连接的结构部件由含有1％以上Cr的低合金钢制成，具有高耐腐蚀性。

5. 发明授权

US5316633A Method and apparatus for measuring sensitization of structural members 失效
标题翻译：用于测量结构构件致敏的方法和装置
公开(公告)号：US5316633A
公开(公告)日：1994-05-31
申请号：US916692
申请日：1992-07-22
申请人： Masanori Sakai , Noriyuki Ohnaka , Masakiyo Izumiya , Shigeo Hattori
发明人： Masanori Sakai , Noriyuki Ohnaka , Masakiyo Izumiya , Shigeo Hattori
IPC分类号： G01N17/02 , G21C17/00 , G21C17/022 , G01N27/26
CPC分类号： G01N17/02 , G21C17/00 , G21C17/022 , G21Y2002/201 , G21Y2002/50 , G21Y2004/30 , G21Y2004/40 , Y02E30/39
摘要： A method and system for electrochemically measuring the sensitization to stress corrosion cracking of small pipes of plant structural members in a very short period of time. A micro electrochemical cell for measuring the sensitization is movably disposed within a BWR plant ICM housing or an instrumentation pipe. An electrochemical instrumentation system for performing the electrochemical potential variation such as pulse voltammetry and a remote control system for remotely controlling the electrochemical cell are provided.
摘要翻译：一种在很短的时间内电化学测量工厂结构构件小管应力腐蚀开裂敏化的方法和系统。用于测量敏化的微电化学电池可移动地设置在BWR工厂ICM外壳或仪表管内。提供用于执行电化学电位变化的电化学仪器系统，例如脉冲伏安法和用于远程控制电化学电池的遥控系统。

6. 再颁专利

USRE33006E Feed-water heater comprising low C-Cr-Mo steel components used under wet steam 失效
标题翻译：给水加热器包括在湿蒸汽下使用的低C-Cr-Mo钢组件
公开(公告)号：USRE33006E
公开(公告)日：1989-08-01
申请号：US71709
申请日：1987-07-08
申请人： Fumio Hataya , Masakiyo Izumiya , Yoshikuni Ohshima , Koichi Akutsu , Syuzo Ueda , Masaaki Ishikawa , Yuji Kusuhara , Iwao Shiraishi
发明人： Fumio Hataya , Masakiyo Izumiya , Yoshikuni Ohshima , Koichi Akutsu , Syuzo Ueda , Masaaki Ishikawa , Yuji Kusuhara , Iwao Shiraishi
IPC分类号： C22C38/22
CPC分类号： C22C38/22
摘要： A novel low C-Cr-Mo steel having an excellent weldability and a high erosion-corrosion resistance under wet steam, which consists of, in % by weight, 0.02-0.14% of C, not more than 0.90% of Si, 0.30-0.80% of Mn, 0.70-1.60% of Cr, 0.40-0.70% of Mo and the remainder being susbtantially Fe. This novel steel is a very excellent material for fabricating the portions in the feed-water heater, for example, for a nuclear power generation plant, the portions being used under wet steam condition. The above described weldability and erosion-corrosion resistance can be improved, by additionally adding the second components of Cu, N, or B, the third components of Nb or V or the fourth components of Al, Ti or Zr in the respectively defined amounts.

7. 发明授权

US5203932A Fe-base austenitic steel having single crystalline austenitic phase, method for producing of same and usage of same 失效
标题翻译：具有单晶奥氏体相的特征型奥氏体钢，其制造方法及其使用方法
公开(公告)号：US5203932A
公开(公告)日：1993-04-20
申请号：US669380
申请日：1991-03-14
申请人： Takahiko Kato , Akira Yoshinari , Shinzoo Ikeda , Michiyoshi Yamamoto , Hideyo Kodama , Hisashi Sato , Masakiyo Izumiya , Yasuhisa Aono
发明人： Takahiko Kato , Akira Yoshinari , Shinzoo Ikeda , Michiyoshi Yamamoto , Hideyo Kodama , Hisashi Sato , Masakiyo Izumiya , Yasuhisa Aono
IPC分类号： C22C30/00 , C22C38/00 , C22C38/40 , C22C38/44 , C30B11/00 , G21C3/07 , G21C5/00
CPC分类号： G21C3/07 , C22C38/40 , C30B11/00 , C30B29/52 , G21Y2002/103 , G21Y2002/104 , G21Y2004/10 , G21Y2004/40 , Y02E30/40
摘要： An austenitic steel comprising Ni of 9-30%, Cr of 10-23%, and Fe of at least 45%, is characterized in comprising enough Cr and Ni to form whole austenitic structure in the equilibrium diagram at 700.degree. C., having austenitic phase at room temperature, and the austenitic phase is a single crystal, and has superior resistance against stress. The austenitic steel preferably comprises C.ltoreq.0.1%, Si.ltoreq.1%, Mn.ltoreq.2%, Ni 9-15%, Cr 16-18.5%, and at least one of elements selected from the group of Mo 1-3%, Ti 0.05-1%, and Nb 0.1-1.5%. The alloy is useful as a material for members of a reactor core of a nuclear reactor.

8. 发明授权

US5316597A A nuclear reactor comprising a reactor vessel and structural members made of an austenitic stainless steel having superior resistance to irradiation-induced segregation 失效
标题翻译：一种包括反应器容器和由奥氏体不锈钢制成的结构构件的核反应堆具有优异的抗辐照诱导偏析性
公开(公告)号：US5316597A
公开(公告)日：1994-05-31
申请号：US936647
申请日：1992-08-28
申请人： Takahiko Kato , Shinzo Ikeda , Yasuhisa Aono , Masakiyo Izumiya , Kiyotomo Nakata , Isao Masaoka , Heishichiro Takahashi
发明人： Takahiko Kato , Shinzo Ikeda , Yasuhisa Aono , Masakiyo Izumiya , Kiyotomo Nakata , Isao Masaoka , Heishichiro Takahashi
IPC分类号： C22C38/00 , C22C38/40 , C22C38/46 , C22C38/48 , C22C38/50 , G21B1/11 , G21B1/17 , G21C5/00
CPC分类号： C22C38/50 , C22C38/40 , C22C38/46 , C22C38/48 , Y10S376/90
摘要： A nuclear reactor having structural members made of austenitic stainless steel which is corrosion-resistant in an environment of neutron irradiation, and can suppress stress corrosion cracking and embrittlement. At least one additive selected from the group consisting of Ti more than 0.2% by weight but not more than 0.6%, Zr more than 0.2% but not more than 1.14%, Hf more than 0.2% but not more than 2.24%, V more than 0.2% but not more than 0.64%, Nb more than 0.5% but not more than 1.17% and Ta more than 0.5% but not more than 2.27% is added to austenitic stainless steel containing Cr, Ni and so on, and said at least one exists in a solid-solution state. In addition, the steel has a wholly austenitic structure substantially free of carbide. In order to maintain the irradiation-induced segregation prevention effected by the addition element, the C content is limited to 0.01 to 0.008%, and the N content is limited to 0.001 to 0.0%. The irradiation-induced segregation, of the constituent elements, such as Cr and Ni, occurring in a grain boundary under irradiation, can be prevented, and the deterioration of the corrosion resistance of the material, as well as the embrittlement, can be prevented.
摘要翻译：具有由奥氏体不锈钢制成的结构构件的核反应堆，其在中子照射环境中耐腐蚀，并且可以抑制应力腐蚀开裂和脆化。至少一种添加剂选自Ti大于0.2重量％但不大于0.6重量％，Zr大于0.2重量％但不大于1.14重量％，Hf大于0.2重量％但不大于2.24重量％，V多超过0.2％但不超过0.64％，Nb超过0.5％但不超过1.17％，Ta含量超过0.5％但不超过2.27％，则含有Cr，Ni等奥氏体不锈钢，在固溶状态下最少存在。此外，钢具有基本上不含碳化物的完全奥氏体结构。为了保持由添加元素进行的照射诱导的偏析防止，C含量限于0.01〜0.008％，N含量限定在0.001〜0.0％。可以防止在照射下的晶界中发生的诸如Cr和Ni的组成元素的照射诱导的偏析，并且可以防止材料的耐腐蚀性劣化以及脆化。

9. 发明授权

US4994157A Method and apparatus for descaling stainless steel 失效
标题翻译：除锈不锈钢的方法和装置
公开(公告)号：US4994157A
公开(公告)日：1991-02-19
申请号：US426761
申请日：1989-10-26
申请人： Masahiko Itoh , Heihatiro Midorikawa , Masakiyo Izumiya , Teruo Yamaguchi
发明人： Masahiko Itoh , Heihatiro Midorikawa , Masakiyo Izumiya , Teruo Yamaguchi
IPC分类号： B21B45/06 , C23G1/08 , C25F1/06 , C25F7/00
CPC分类号： C25F1/06 , C25F7/00
摘要： A method of descaling stainless steel which provides a smooth and glossy surface, comprises the steps of (a) anode-electrolyzing stainless steel having scales thereon in an aqueous neutral salt solution, (b) anode-electrolyzing or immersing the stainless steel in an aqueous alkaline solution. Steps (a) and (b) are performed in the order of either (a), (b), (a). The method further comprises the step of cathode-electrolyzing the stainless steel treated in the previous two steps in an aqueous nitric acid solution or immersing it in an aqueous solution of a mixture containing nitric acid and fluoric acid.

10. 发明授权

US5654098A Superconducting wire and composite superconductor 失效
标题翻译：超导线和复合超导体
公开(公告)号：US5654098A
公开(公告)日：1997-08-05
申请号：US660392
申请日：1996-06-07
申请人： Yasuhisa Aono , Fumio Iida , Shinzo Ikeda , Takahiko Kato , Masakiyo Izumiya , Hideyo Kodama
发明人： Yasuhisa Aono , Fumio Iida , Shinzo Ikeda , Takahiko Kato , Masakiyo Izumiya , Hideyo Kodama
IPC分类号： H01B12/10 , C22C1/05 , H01B13/00 , H01L39/14 , H01L39/24 , B32B9/00
CPC分类号： H01L39/2406 , H01L39/14 , H01L39/2403 , H01L39/2409 , Y10S428/93 , Y10S505/884 , Y10S505/887 , Y10T29/49014 , Y10T428/2929 , Y10T428/294
摘要： A superconducting wire saved in weight and enhanced in mechanical properties is provided without damaging electric and thermal characteristics as an Al stabilizer, and further a method for producing the same, a high strength Al sintered alloy and powders used for the process are provided. A superconducting wire comprising an Al alloy of a high purity Al in which a small amount of ceramic ultrafine particles are dispersed and superconducting filaments embedded in the Al alloy, in which a large number of the ceramic ultrafine particles are dispersed in the area of 1 .mu.m.sup.2, and the areas of 1 .mu.m.sup.2 in which a large number of the ceramic ultrafine particles are dispersed, are formed over nearly the whole of the alloy.
摘要翻译：提供重量轻且机械性能提高而不损害作为Al稳定剂的电热特性的超导线材，并提供其制造方法，高强度Al烧结合金和用于该方法的粉末。一种超导线，其包括分散有少量陶瓷超细颗粒的高纯度Al的Al合金和嵌入Al合金中的超导细丝，其中大量的陶瓷超细颗粒分散在1μm的区域中并且在几乎整个合金中形成其中分散有大量陶瓷超细颗粒的1μm的面积。

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