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1. 发明专利

JP2004131840A Corrosion resistant/wear resistant alloy, and equipment using the same 有权
公开(公告)号：JP2004131840A
公开(公告)日：2004-04-30
申请号：JP2003202165
申请日：2003-07-28
申请人： Hitachi Kyowa Engineering Co Ltd , Hitachi Ltd , 日立協和エンジニアリング株式会社 , 株式会社日立製作所
发明人： KIYOTOKI YOSHIHISA , CHIBA YOSHITERU , KUMAGAI MAKOTO , OGAWA SUKEHIRO , SAKAMOTO AKIRA , SHINOHARA HIROYUKI
IPC分类号： G21D1/00 , B21J5/00 , B21J13/02 , C21D8/00 , C22C19/00 , C22C38/00 , C22C38/58 , C22F1/00 , C22F1/10 , F01D25/00 , F01L1/04 , F01L1/14 , F01L3/02 , F04D29/12 , F16H53/02 , F16H53/06 , F16J15/34 , F16K3/12
CPC分类号： Y02E30/40
摘要： PROBLEM TO BE SOLVED: To provide a corrosion resistant/wear resistant alloy in which the linkage of the corrosion of eutectic carbides composing a cobalt based, nickel based or iron based alloy used for the sliding part or valve seat of equipment in a dissolved oxygen atmosphere is suppressed.
SOLUTION: In the corrosion resistant/wear resistant alloy, an intermediate stock is subjected to hot plastic working in the range of 650°C to a solidus temperature, so that, among the structure consisting of network eutectic carbides and a base material part surrounded thereby in the intermediate stock, the eutectic carbides are made so as to be a plurality of granular or lumpy ones, and to be a discontinuous distribution. Thus, its friction coefficient is 0.1 to 0.5, and its Vickers hardness in a state of being subjected to no aging treatment is 300 to 600 Hv. The intermediate stock is obtained by casting a stock selected from a cobalt base with Cr and/or W added, a nickel base with Fe and/or Cr added, and an iron base with Cr and/or Ni added into an ingot or a slab.
COPYRIGHT: (C)2004,JPO

2. 发明专利

JP2003028315A Manufacturing method of nuclear/thermal power plant valve device 审中-公开
标题翻译：核/热电厂阀门装置的制造方法
公开(公告)号：JP2003028315A
公开(公告)日：2003-01-29
申请号：JP2001220810
申请日：2001-07-23
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： CHIKAZAKI MITSUO , KUNIYA JIRO , KIYOTOKI YOSHIHISA , SAKAMOTO AKIRA , CHIBA YOSHITERU , MATSUSHITA SHIZUO
IPC分类号： G21D1/00 , C22C19/07 , F16K1/20 , F16K5/02
CPC分类号： Y02E30/40
摘要： PROBLEM TO BE SOLVED: To provide a valve having excellent corrosion/erosion resistance and maintainability by joining corrosion/wearing resisting alloy wherein eutectic carbide is discontinuously distributed to a sliding portions of various apparatus and valves by brazing, to improve the maintainability of thermal power plant and a nuclear power plant, and to provide the nuclear power plant being excellent in the safety of work and having a system for circulating primary cooling water. SOLUTION: In this valve and apparatus such as a nuclear power plant using the valve, eutectic carbide in alloy having a casting organization basic material portion and the eutectic carbide is formed in plural lumps or plural particles. corrosion/wearing resisting alloy wherein the eutectic carbide is discontinuously distributed is joined to a sliding portion.
摘要翻译：要解决的问题：为了提供通过接合耐腐蚀/耐磨合金而具有优异的耐腐蚀/耐腐蚀性和可维护性的阀，其中共晶碳化物通过钎焊不连续地分布到各种装置和阀的滑动部分，以提高火力发电厂的可维护性和核电站，并提供核电厂工作安全性优良，并拥有一级循环冷却水循环系统。解决方案：在这种阀和装置如使用阀的核电站中，具有铸造组织基本材料部分的合金中的共晶碳化物和共晶碳化物形成为多个块状或多个颗粒。其中共晶碳化物不连续分布的耐腐蚀/耐磨合金接合到滑动部分。

3. 发明专利

JP2004077408A Valve for light-water reactor 审中-公开
公开(公告)号：JP2004077408A
公开(公告)日：2004-03-11
申请号：JP2002241536
申请日：2002-08-22
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TAKESHIMA KIKUO , KUMAGAI MAKOTO , CHIKAZAKI MITSUO , CHIBA YOSHITERU
IPC分类号： G21D1/00 , F16K3/12
CPC分类号： Y02E30/40
摘要： PROBLEM TO BE SOLVED: To provide a valve for a light-water reactor which has good corrosion and abrasion resistance without increasing the cost as in a conventional ceramic coating treatment.
SOLUTION: The purpose mentioned above is achieved by obtaining the valve for the light-water reactor manufactured by melting and cooling a surface padding section irradiated with a laser beam after applying a surface hardening padding material to a valve box of the valve for the light-water reactor and a sheet of a valve body and irradiating the surfaces of at least one of the surface hardening padding materials applied to the valve box and the sheet with the laser beam.
COPYRIGHT: (C)2004,JPO

4. 发明专利

JP2003048076A Joined structure of cobalt-based alloy 有权
标题翻译：基于钴的合金的接合结构
公开(公告)号：JP2003048076A
公开(公告)日：2003-02-18
申请号：JP2001235707
申请日：2001-08-03
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KIYOTOKI YOSHIHISA , CHIKAZAKI MITSUO , MATSUSHITA SHIZUO , KUNIYA JIRO , KATO TAKAHIKO , CHIBA YOSHITERU
IPC分类号： G21D1/00 , B23K20/00 , B23K35/30 , B23K103/08 , C22C19/07 , F16K25/00 , G21D1/02
CPC分类号： G21D1/02 , Y02E30/40 , Y10T137/7036 , Y10T428/12861 , Y10T428/12931 , Y10T428/12937
摘要： PROBLEM TO BE SOLVED: To improve the corrosion resistance and wear resistance of a cobalt- based alloy part in a joined structure of a cobalt-based alloy. SOLUTION: In the joined structure of a cobalt-based alloy, a cobalt-based alloy layer 1 where granular or aggregated eutectic carbide particles 2 are dispersed is joined to the metal of a base material 37 via an insert material layer 36. The joined structure of the cobalt-based alloy is obtained by; interposing an insert material having a thickness of about 40 μm into the space between the base material of S45C carbon steel and a cobalt-based alloy material which has a composition containing, by weight, 1.03% C, 29.73% Cr, 3.86% W, 2.59% Ni, 2.67% Fe, 0.59% Si and 0.07% Mo, and the balance substantially Co and which contains granular or aggregated eutectic carbide particles having a particle size of
摘要翻译：要解决的问题：提高钴基合金的接合结构中的钴基合金部件的耐腐蚀性和耐磨性。解决方案：在钴基合金的接合结构中，分散有颗粒或聚集的共晶碳化物颗粒2的钴基合金层1通过插入材料层36接合到基材37的金属。接合结构的钴基合金通过以下方式得到：将具有约40μm厚度的插入材料插入到S45C碳钢的基材和钴基合金材料之间的空间中，所述钴基合金材料具有重量比为1.03％C，29.73％Cr，3.86％W的组成， 2.59％Ni，2.67％Fe，0.59％Si和0.07％Mo，余量基本上为Co，并且在铸造结构的基体中含有粒径<=30μm的粒状或聚集的共晶碳化物颗粒; 并在1,100℃进行液相扩散接合1小时的保持时间。接合后的钴系合金层1含有粒状或聚集的共晶碳化物。

5. 发明专利

JP2004149924A Corrosion-resistant/wear-resistant alloy, and equipment using the same 审中-公开
公开(公告)号：JP2004149924A
公开(公告)日：2004-05-27
申请号：JP2003365410
申请日：2003-10-27
申请人： Hitachi Kyowa Engineering Co Ltd , Hitachi Ltd , 日立協和エンジニアリング株式会社 , 株式会社日立製作所
发明人： KIYOTOKI YOSHIHISA , CHIBA YOSHITERU , KUMAGAI MAKOTO , OGAWA SUKEHIRO , SAKAMOTO AKIRA , SHINOHARA HIROYUKI
IPC分类号： G21D1/00 , B21K1/20 , B23K20/00 , B23K103/08 , C21D8/00 , C21D9/00 , C22C19/00 , C22C19/03 , C22C38/00 , C22C38/58 , C22F1/00 , C22F1/10
CPC分类号： Y02E30/40
摘要： PROBLEM TO BE SOLVED: To provide corrosion-resistant/wear-resistant alloy for suppressing corrosion linkage of eutectic carbide to constitute the alloy under a dissolved oxygen atmosphere of cobalt-base, nickel-base or iron-base alloy used for sliding portions of equipment and valve seats.
SOLUTION: A material selected from the cobalt base with Cr and/or W added thereto, the nickel base with Fe and/or Cr added thereto, or the iron base with Cr and/or Ni added thereto is molded into an intermediate material of ingot or slab. The intermediate material is subjected to the hot plastic working at the temperature of ≥ 650°C to the solidus temperature or below. The eutectic carbide out of the structure consisting of the mesh-like eutectic carbide in the intermediate material and a base portion surrounded thereby of the intermediate material is formed into a plurality of granules or lumps in a non-continuous distribution. The friction coefficient is 0.1 to 0.5, and the Vickers hardness without aging effect is 300-600 Hv.
COPYRIGHT: (C)2004,JPO

6. 发明专利

JP2003207059A VALVE AND ITS MANUFACTURING METHOD 审中-公开
公开(公告)号：JP2003207059A
公开(公告)日：2003-07-25
申请号：JP2002004034
申请日：2002-01-11
申请人： HITACHI LTD
发明人： CHIKAZAKI MITSUO , MATSUSHITA SHIZUO , KUNIYA JIRO , KIYOTOKI YOSHIHISA , TAKESHIMA KIKUO , SAKAMOTO AKIRA , CHIBA YOSHITERU
IPC分类号： G21D1/00 , B22F5/00 , B22F7/06 , C22C1/05 , C22C19/05 , C22C38/12 , C22C38/32 , C22C38/34 , F16K3/12 , F16K25/00
摘要： PROBLEM TO BE SOLVED: To provide a valve having superior wear resistance and seizure resistance without containing cobalt. SOLUTION: Valve seats 4, 5 of a valve element 2 and a valve box 3 are formed of a nickel group alloy in which small-size silicide particles or boronide particles are finely dispersed. Liquid phase diffusion bonding is applied between the valve seat and the valve element or the valve box via an insert material formed of a low-melting-point nickel group alloy. COPYRIGHT: (C)2003,JPO

7. 发明专利

JP2002146486A CORROSION RESISTANT AND WEAR RESISTANT ALLOY AND APPARATUS USING THE SAME 审中-公开
公开(公告)号：JP2002146486A
公开(公告)日：2002-05-22
申请号：JP2001235714
申请日：2001-08-03
申请人： HITACHI LTD , HITACHI KYOWA ENG CO LTD
发明人： KIYOTOKI YOSHIHISA , CHIBA YOSHITERU , KUMAGAI MAKOTO , OGAWA SUKEHIRO , SAKAMOTO AKIRA , SHINOHARA HIROYUKI
IPC分类号： C21D7/13 , C21D8/00 , C22C19/00 , C22C19/05 , C22C19/07 , C22C38/00 , C22C38/14 , C22C38/34 , C22C38/44 , C22C38/58 , C22F1/00 , C22F1/10 , F01L3/02 , F04B53/00
摘要： PROBLEM TO BE SOLVED: To provide a corrosion resistant and wear resistant alloy in which the chain of the corrosion of eutectic carbides composing a cobalt based, nickel based or iron based alloy used for the sliding part and valve seat of apparatus in a dissolved oxygen atmosphere. SOLUTION: In this corrosion resistant and wear resistant alloy, an intermediate stock obtained by casting a stock selected from a cobalt base with Cr and/or W added, a nickel base with Fe and/or Cr added or an iron base with Cr and/or Ni added into an ingot or a slab is subjected to hot plastic working at the solidus temperature or lower. In the structure composed of network eutectic carbides in the intermediate stock and a base material part surrounded thereby, the eutectic carbides are formed to plural granular or lumpy ones into a noncontinuous distribution. Its friction coefficient is controlled to 0.1 to 0.5. Its Vickers hardness in a state where aging treatment is not performed is controlled to 300 to 600 Hv.

8. 发明专利

JPH11325290A VALVE DEVICE 失效
公开(公告)号：JPH11325290A
公开(公告)日：1999-11-26
申请号：JP2122099
申请日：1999-01-29
申请人： HITACHI LTD , HITACHI KYOWA ENG CO LTD
发明人： TAKESHIMA KIKUO , IWATA YASUTAKA , CHIBA YOSHITERU , ONAKA NORIYUKI , SHINOHARA HIROYUKI
IPC分类号： F16K25/00 , F16K3/12
摘要： PROBLEM TO BE SOLVED: To improve abrasion resistance and airtightness of a valve device without containing cobalt by performing CrN ceramic coating on a base material of a valve element for, a sliding portion of the valve element from among sliding portions in contact with the valve element in the valve device. SOLUTION: Ceramic coating is applied on a sliding portion of a valve box in contact with a valve body 2 directly in a thick manner. The ceramic coating treatment is carried out repetitively by plasma arc method to thicken the film thickness and improve abrasion resistance of the ceramic film. The valve element 2 is vertically reciprocated by the operation of a rotary handle 8 through a valve rod 7, for opening and closing a flow passage (p) of jount portions 4. The valve element 2 has substantially circular side surfaces 2a, 2b faced to the flow passage (p). Ceramic coating 2c is applied to the peripheries of the side surfaces 2a, 2b, that is, whole of the seal portion. The sliding portion of the valve box is made of the same material as the box.

9. 发明专利

JPH04349351A SODIUM-SULFUR BATTERY 失效
公开(公告)号：JPH04349351A
公开(公告)日：1992-12-03
申请号：JP12086791
申请日：1991-05-27
申请人： HITACHI LTD
发明人： CHIBA YOSHITERU , CHIKAZAKI MITSUO , KOJIMA YOSHIYUKI , KIKUCHI EIJI , YOSHIKAWA MASANORI , KOYAMA TETSUO , MAENO SHIGEO , KAWAKAMI MITSUO
IPC分类号： C22C38/00 , C22C38/52 , H01M2/30 , H01M10/39
摘要： PURPOSE:To prevent corrosion of the positive pole container of a sodium-sulfur battery due to electromotive force, extend the life of the battery by 10-15 times by using a Fe-Cr-based material for the positive pole container, simplify the battery manufacturing installation, and heighten the efficiency of the battery. CONSTITUTION:A positive pole container 9 is insulated from a positive pole electromotive force so as to set a structure by which electromotive force is not generated electrically in the positive pole container. Insulating packings are shown by symbols 12, 13 and the packings and the positive pole container are joined together by an adhesive. A packing 14 in the inside of the insulating outer packing is an insulating packing which prevents sulfur, with which a positive plate porous conductive material and a positive plate molded body are impregnated, from flowing out.

10. 发明专利

JPH0158477B2 失效
公开(公告)号：JPH0158477B2
公开(公告)日：1989-12-12
申请号：JP19863481
申请日：1981-12-11
申请人： HITACHI LTD
发明人： HATAYA FUMIO , CHIBA YOSHITERU , YOSHIKAWA KAZUAKI
IPC分类号： G21C7/12 , G21C7/16

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