公开(公告)号：US4718949A

公开(公告)日：1988-01-12

申请号：US915555

申请日：1986-10-06

申请人： Iwao Takase ,  Toshimi Yoshida ,  Shinzo Ikeda ,  Isao Masaoka ,  Junjiro Nakajima

发明人： Iwao Takase ,  Toshimi Yoshida ,  Shinzo Ikeda ,  Isao Masaoka ,  Junjiro Nakajima

IPC分类号： C22C16/00 ,  C22F1/18 ,  G21C3/06 ,  G21C3/07

CPC分类号： G21C3/07 ,  Y02E30/40 ,  Y10S376/90

摘要： A method of producing cladding tube comprises a step of temperature-gradient annealing in which the inner surface of the tube is heated to a temperature higher than the recrystallization temperature thereof, while the outer surface of the tube is cooled, after the tube has been hot-extruded. The temperature-gradient annealing is effected while a temperature gradient is maintained between the inner surface and the outer surface of the cladding tube. While keeping the inner surface at a temperature higher than the recrystallization temperature, and the outer surface at a temperature lower than the recrystallization temperature. The cladding tube is obtained with the outer surface which has an excellent resistance to nodular corrosion and a soft inner surface which has an excellent resistance to stress corrosion cracking.

摘要翻译： 制造包层管的方法包括将管的内表面加热到高于其再结晶温度的温度的温度梯度退火步骤，同时管的外表面被冷却后，管被热 - 挤压。 在包覆管的内表面和外表面之间保持温度梯度的同时进行温度梯度退火。 同时将内表面保持在比再结晶温度高的温度，而外表面在低于再结晶温度的温度下。 获得具有优异的抗结块腐蚀性的外表面和具有优异的耐应力腐蚀开裂性的软内表面的包覆管。

公开(公告)号：US4842814A

公开(公告)日：1989-06-27

申请号：US9477

申请日：1987-02-02

申请人： Iwao Takase ,  Masahisa Inagaki ,  Masayoshi Kanno ,  Toshimi Yoshida ,  Jiro Kuniya ,  Isao Masaoka ,  Tetsuo Yasuda ,  Hajime Umehara ,  Hideo Maki

发明人： Iwao Takase ,  Masahisa Inagaki ,  Masayoshi Kanno ,  Toshimi Yoshida ,  Jiro Kuniya ,  Isao Masaoka ,  Tetsuo Yasuda ,  Hajime Umehara ,  Hideo Maki

IPC分类号： G21C3/32 ,  G21C3/34

CPC分类号： G21C3/34 ,  G21C3/32 ,  Y02E30/40

摘要： A channel box and/or a spacer of a fuel assembly is a welded construction and made of a Zr-Nb-Sn alloy comprising 0.5-2.2 wt % Nb, 0.5-1.5 wt % Sn contained so as to satisfy the relation of Sn(wt %) 22.times.Nb(wt %)--3.0, and balance Zr or a Zr-Nb-Sn-Mo alloy comprising 0.5-2.2 wt % Nb, 0.5-1.5 wt % Sn contained so as to satisfy the relation of Sn(wt %).gtoreq.2.times.Nb(wt %)--0.3, 0.1-0.8 wt % Mo, and balance Zr. The welded portion, its heat affected zone and the unwelded portion of the channel box and/or the spacer have substantially the whole equilibrium phase structure.

摘要翻译： 燃料组件的通道箱和/或间隔件是焊接结构，由包含0.5-2.2重量％Nb，0.5-1.5重量％Sn的Zr-Nb-Sn合金制成，以满足Sn（ 重量％）22×Nb（重量％）-3.0，余量包含0.5-2.2重量％Nb，0.5-1.5重量％Sn的Zr或Zr-Nb-Sn-Mo合金，以满足Sn（wt％）的关系， ）> / = 2xNb（wt％）-0.3,0.1-0.8wt％Mo，余量为Zr。 焊接部分，其热影响区和通道箱和/或间隔件的未焊接部分具有基本上全部的平衡相结构。

公开(公告)号：US4689091A

公开(公告)日：1987-08-25

申请号：US704208

申请日：1985-02-22

申请人： Toshimi Yoshida ,  Hideo Maki ,  Hajime Umehara ,  Tetsuo Yasuda ,  Isao Masaoka ,  Iwao Takase ,  Masahisa Inagaki ,  Ryutarou Jimbow ,  Keiichi Kuniya

发明人： Toshimi Yoshida ,  Hideo Maki ,  Hajime Umehara ,  Tetsuo Yasuda ,  Isao Masaoka ,  Iwao Takase ,  Masahisa Inagaki ,  Ryutarou Jimbow ,  Keiichi Kuniya

IPC分类号： C22F1/18 ,  C21D8/00

CPC分类号： C22F1/186 ,  Y10S376/90

摘要： In a process for producing a zirconium-based alloy in which after the zirconium-based alloy is subjected to hot plastic working, it is subjected to cold plastic working and then to annealing and these steps are repeated at least twice, the present invention provides a process for producing a zirconium-based alloy characterized in that after the alloy is subjected to solid solution treatment in which it is heated to a temperature within the range including the .alpha. phase and the .beta. phase of the alloy, or within the range of the .beta. phase and is then quenched, cold plastic working is effected at least twice.

公开(公告)号：US4560407A

公开(公告)日：1985-12-24

申请号：US358211

申请日：1982-03-15

申请人： Toshimi Yoshida ,  Kiyotomo Nakata ,  Isao Masaoka ,  Hisawo Itow

发明人： Toshimi Yoshida ,  Kiyotomo Nakata ,  Isao Masaoka ,  Hisawo Itow

IPC分类号： C22C38/00 ,  C22C38/40

CPC分类号： C22C38/001 ,  C22C38/40 ,  Y10S376/90

摘要： An alloy for use in an environment exposed to neutron rays consists principally of Cr-Ni austenite stainless steel containing nitrogen in an amount exceeding the amount of an impurity and having principally an austenite structure. The alloy is used for reactor core members such as a core shroud, core supporters, control rods, etc. which are exposed to the neutron radiation but prevented from being embrittled by the radiation.

摘要翻译： 用于暴露于中子射线的环境中的合金主要由Cr-Ni奥氏体不锈钢组成，其中氮含量超过杂质量，主要是奥氏体结构。 该合金用于暴露于中子辐射但防止被辐射脆化的反应堆核心构件，例如芯护罩，芯支撑件，控制杆等。

公开(公告)号：US4678521A

公开(公告)日：1987-07-07

申请号：US837557

申请日：1986-03-03

申请人： Toshimi Yoshida ,  Hideo Maki ,  Hajime Umehara ,  Tetsuo Yasuda ,  Isao Masaoka ,  Iwao Takase ,  Masahisa Inagaki ,  Ryutarou Jimbow ,  Keiichi Kuniya

发明人： Toshimi Yoshida ,  Hideo Maki ,  Hajime Umehara ,  Tetsuo Yasuda ,  Isao Masaoka ,  Iwao Takase ,  Masahisa Inagaki ,  Ryutarou Jimbow ,  Keiichi Kuniya

IPC分类号： C22F1/18 ,  C21D8/00 ,  C22C16/00

CPC分类号： C22F1/186 ,  Y10S376/90

摘要： In a process for producing a zirconium-based alloy in which after the zirconium-based alloy is subjected to hot plastic working, it is subjected to cold plastic working and then to annealing and these steps are repeated at least twice, the present invention provides a process for producing a zirconium-based alloy characterized in that after the alloy is subjected to solid solution treatment in which it is heated to a temperature within the range including the .alpha. phase and the .beta. phase of the alloy, or within the range of the .beta. phase and is then quenched, cold plastic working is effected at least twice.

摘要翻译： 在锆系合金的制造方法中，在对锆系合金进行热塑性加工后，对其进行冷塑性加工，然后进行退火，将这些工序重复至少2次，本发明提供 锆系合金的制造方法，其特征在于，在将合金进行固溶处理后，将其加热至包含合金的α相和β相的范围内的温度，或者在β 然后淬火，冷塑性加工至少进行两次。