专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4478363A Method of production of composite billet for fuel cladding tube 失效
标题翻译：燃料包层管复合材料生产方法
公开(公告)号：US4478363A
公开(公告)日：1984-10-23
申请号：US254297
申请日：1981-04-15
申请人： Hiromichi Imahashi , Shigeo Turuoka , Keiichi Kuniya , Tomio Iizuka , Akira Kawahara
发明人： Hiromichi Imahashi , Shigeo Turuoka , Keiichi Kuniya , Tomio Iizuka , Akira Kawahara
IPC分类号： B23K20/02 , B21D39/04
CPC分类号： B23K20/02
摘要： A method of production of a composite billet for a nuclear fuel cladding tube wherein a hollow inner billet of zirconium is inserted in a hollow outer billet of a nuclear fuel cladding material. Following insertion of a resilient member in the hollow inner billet, pressure is applied to the resilient member axially of the billets to force the inner billet against the outer billet, to produce a pressure bonding between an inner surface of the outer billet and an outer surface of the inner billet.
摘要翻译：一种生产用于核燃料包层管的复合坯料的方法，其中锆的中空内部坯料插入核燃料包层材料的中空外部坯料中。在将弹性构件插入中空的内部坯料中之后，将压力作用在坯料轴向的弹性构件上以迫使内部坯料抵抗外部坯料，从而在外部坯料的内表面和外部表面之间产生压力结合的内部钢坯。

2. 发明授权

US4573629A Method of production of cladding tube for nuclear fuel element 失效
标题翻译：核燃料元件包层管生产方法
公开(公告)号：US4573629A
公开(公告)日：1986-03-04
申请号：US291330
申请日：1981-08-10
申请人： Hiromichi Imahashi , Akira Kawahara , Takao Konishi , Yoshihumi Morimoto , Michio Terui , Yoshio Yagi
发明人： Hiromichi Imahashi , Akira Kawahara , Takao Konishi , Yoshihumi Morimoto , Michio Terui , Yoshio Yagi
IPC分类号： B21C23/22 , B21C37/06 , B21C37/15 , B21D39/04 , B23K20/02 , G21C3/20 , B21D39/00
CPC分类号： B21C37/06 , B23K20/02
摘要： A method of production of a cladding tube for a nuclear fuel element wherein a first hollow billet of a zirconium alloy and a second hollow billet of zirconium having a smaller outer diameter than the first hollow billet are formed by heat treatment, forging and cutting. A resilient member is inserted in a space defined between the first hollow billet and the second hollow billet inserted in the first hollow billet, a pressure oriented axially of the two hollow billets is applied to the resilient member to bring the outer wall surface of the second hollow billet into intimate contact with the inner wall surface of the first hollow billet, and opposite ends of the two hollow billets are joined and sealed. The hollow billets thus joined into a unitary structure are subjected to hot extrusion, cold working and heat treatment to produce a composite tube of reduced diameter and reduced thickness, and the inner and outer wall surfaces of the composite tube are ground.
摘要翻译：一种生产用于核燃料元件的包层管的方法，其中通过热处理，锻造和切割形成具有比第一中空坯料小的外径的锆合金的第一中空坯料和锆的第二中空坯料。将弹性构件插入在第一中空坯料和插入第一中空坯料中的第二中空坯料之间的空间中，将两个中空坯料轴向取向的压力施加到弹性构件以使第二中空坯料的外壁表面中空坯料与第一中空坯料的内壁表面紧密接触，并且两个中空坯料的相对端部接合并密封。将这样连接成一体结构的中空坯坯进行热挤压，冷加工和热处理，以制造直径减小和厚度减小的复合管，并且复合管的内壁和外壁表面被研磨。

3. 发明授权

US4217568A Magnetic pole pieces for use in a nuclear magnetic resonance apparatus 失效
标题翻译：用于核磁共振装置的磁极片
公开(公告)号：US4217568A
公开(公告)日：1980-08-12
申请号：US847491
申请日：1977-11-01
申请人： Akio Chiba , Hiromichi Imahashi , Sadami Tomita , Yoshiharu Utsumi
发明人： Akio Chiba , Hiromichi Imahashi , Sadami Tomita , Yoshiharu Utsumi
IPC分类号： G01R33/383 , H01F7/02 , H01F7/20 , H01F41/02 , H01F3/00 , H01F7/00
CPC分类号： H01F41/02 , H01F7/0278 , H01F7/20
摘要： A non-magnetic metal for integral casting is poured into a mold supporting a couple of magnetic pole pieces with a distance piece placed therebetween. The pole pieces are thus fixed as cast integrally with the mold, and subsequently the distance piece is removed so that there are provided magnetic pole pieces of the type best suited to a nuclear magnetic resonance apparatus, etc.
摘要翻译：将用于整体铸造的非磁性金属倒入支撑一对磁极片的模具中，其间放置有间隔件。因此，极片与模具一体铸造固定，随后移除距离片，从而设置最适合于核磁共振设备的类型的磁极片等。

4. 发明授权

US4863679A Cladding tube for nuclear fuel and nuclear fuel element having this cladding tube 失效
标题翻译：用于核燃料的包层管和具有该包层管的核燃料元件
公开(公告)号：US4863679A
公开(公告)日：1989-09-05
申请号：US59175
申请日：1987-06-12
申请人： Hiromichi Imahashi , Toshio Kubo , Kazumi Asahi , Hideyuki Mukai , Keizo Ogata
发明人： Hiromichi Imahashi , Toshio Kubo , Kazumi Asahi , Hideyuki Mukai , Keizo Ogata
IPC分类号： G21C3/20
CPC分类号： G21C3/20 , G21Y2002/103 , G21Y2004/10 , G21Y2004/201 , G21Y2004/30 , Y02E30/40
摘要： Disclosed are a cladding tube for a nuclear fuel and a nuclear fuel element incorporating the cladding tube. The cladding tube consists of an inner zirconium liner layer and an outer zirconium alloy layer. The cladding tube has at least one of the following features: (I) the ratio a/b of the oxygen content a to iron content b in the zirconium liner layer is greater than 1.0, (II) the zirconium liner layer is made of a zirconium into the matrix of which impurities are dissolved, and (III) the second phase particles having microscopic sizes and dispersed in the inner surface of the zirconium liner layer and/or the outer surface of the zirconium alloy layer have been removed substantially. Owing to these features, undesirable stress corrosion cracking and local corrosion are remarkably suppressed in the cladding tube and the nuclear fuel element of the invention.
摘要翻译：公开了一种用于核燃料的包覆管和结合有包层管的核燃料元件。包层管由内锆衬层和外锆合金层组成。包壳管具有以下特征中的至少一个：（I）锆衬层中氧含量a与铁含量b的比a / b大于1.0，（II）锆衬层由锆溶解在其中溶解有杂质的基质中，并且（III）已经除去了具有微观尺寸并分散在锆衬层的内表面和/或锆合金层的外表面的第二相颗粒。由于这些特征，在本发明的包层管和核燃料元件中，显着地抑制了不期望的应力腐蚀开裂和局部腐蚀。

5. 发明授权

US4627148A Method of producing high-purity metal member 失效
标题翻译：生产高纯度金属部件的方法
公开(公告)号：US4627148A
公开(公告)日：1986-12-09
申请号：US679075
申请日：1984-12-06
申请人： Hiromichi Imahashi , Masahisa Inagaki , Kimihiko Akahori , Hajime Umehara
发明人： Hiromichi Imahashi , Masahisa Inagaki , Kimihiko Akahori , Hajime Umehara
IPC分类号： B22D13/00 , B22D27/15 , C22B9/22 , C22B34/14 , B21D39/00 , B23P11/00
CPC分类号： C22B34/14 , C22B9/228 , Y10T29/49927 , Y10T29/49991
摘要： A high-purity metal member is produced by charging raw material such as sponge zirconium into a cavity of a mold such as a hearth under a vacuum atmosphere; irradiating the material with electron beams to melt it at a limited area of the cavity while forming a molten metal pool and irradiating the pool with the electron beam thereby elevate the molten metal pool to evaporate away impurities therein; and shifting the mold relative to the electron beams to provide a high-purity metal member. The metal pool is limited in its size and irradiated high energy density electron beams so that the temperature is raised whereby the impurities are easily evaporated away. The mold may have an annular cavity. In case of high-purity sleeve formation, the electron beams are irradiated onto the raw material while rotating the mold so that melting and solidification appear in a circumferential direction to be repeated. The impurities are repeatedly exposed to the electron beams.
摘要翻译：通过在真空气氛下将诸如海绵锆的原料装入诸如炉床的模具的空腔中来生产高纯金属构件; 用电子束照射材料以在空腔的有限区域熔化，同时形成熔融金属池并用电子束照射池，从而升高熔融金属池以蒸发其中的杂质; 并且相对于电子束移动模具以提供高纯度的金属构件。金属池的尺寸受到限制，并且照射高能密度的电子束，使得温度升高，从而杂质容易蒸发掉。模具可以具有环形空腔。在高纯度套管形成的情况下，在旋转模具的同时将电子束照射到原料上，使得在圆周方向上出现熔化和凝固以重复。杂质重复暴露于电子束。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式