专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

81. 发明专利

JPS62180027A ZIRCONIUM ALLOY MEMBER 失效
公开(公告)号：JPS62180027A
公开(公告)日：1987-08-07
申请号：JP2012886
申请日：1986-02-03
申请人： HITACHI LTD
发明人： TAKASE IWAO , INAGAKI MASATOSHI , KANNO MASAYOSHI , YOSHIDA SUMI , KUNIYA JIRO , MASAOKA ISAO , YASUDA TETSUO
IPC分类号： C22C16/00 , C22F1/00 , C22F1/18 , G21C3/30
摘要： PURPOSE:To provide a Zr alloy member which obviates the generation of nodular corrosion and white full surface corrosion in particular and has excellent corrosion resistance by incorporating Nb, Sn, Fe, and Mo respectively at prescribed ratios therein and specifying the content of (Fe+Mo). CONSTITUTION:This Zr alloy member contains, by weight, 1.7-2.5% Nb, 0.5-2.2% Sn, and 0.04-1.0% Fe, consists of the balance Zr and inevitable impurities and is specified to 0.2-1.0% (Fe+Mo). The purpose of this invention is to provide a fuel clad pipe, fuel spacer and fuel channel box consisting of the Zr alloy having high strength and high corrosion resistance (nodular corrosion resistance and white corrosion resistance). More specifically, the various parts mentioned above are produceable from this Zr alloy member and therefore, a fuel assembly having high economy is manufactured and the improvement of the reliability is expected.

82. 发明专利

JPS61143571A MANUFACTUR OF ZIRCONIUM ALLOY 失效
公开(公告)号：JPS61143571A
公开(公告)日：1986-07-01
申请号：JP26118785
申请日：1985-11-22
申请人： HITACHI LTD
发明人： YOSHIDA SUMI , MAKI HIDEO , UMEHARA HAJIME , YASUDA TETSUO , MASAOKA ISAO , TAKASE IWAO , INAGAKI MASATOSHI , JINBO RYUTARO , KUNIYA KEIICHI
IPC分类号： C22F1/18 , C22F1/00
摘要： PURPOSE:To improve the corrosion resistance of a Zr alloy and to prolong the life of an apparatus made of the alloy for a nuclear reactor by subjecting the Zr alloy to prescribed soln. heat treatment between the last hot plastic working stage and the first cold plastic working stage. CONSTITUTION:A Zr alloy is subjected to primary soln. heat treatment by heatiang at a temp. in the beta-phase temp. range and quenching between the last hot plastic working stage and the first cold plastic working stage. After cold plastic working is carried out twice or more, the Zr alloy is annealed twice or more at

83. 发明专利

JPS6054838B2 失效
公开(公告)号：JPS6054838B2
公开(公告)日：1985-12-02
申请号：JP2447379
申请日：1979-03-05
申请人： HITACHI LTD
发明人： INAGAKI MASATOSHI , JINBO RYUTARO , UNNO TOMIO , SHIDA TOMOHIKO , IKEMOTO NORIO
IPC分类号： B23K26/06 , B23K26/073 , C21D1/09 , C21D1/34

84. 发明专利

JPS60224768A PRODUCTION OF ZIRCONIUM-BASE ALLOY HAVING HIGH CORROSION RESISTANCE FOR NUCLEAR REACTOR 失效
公开(公告)号：JPS60224768A
公开(公告)日：1985-11-09
申请号：JP7968184
申请日：1984-04-19
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： NAKAJIMA JIYUNJIROU , MATSUMOTO TOSHIHIRO , INAGAKI MASATOSHI , TAKASE IWAO , ASANO RINICHI
IPC分类号： C22F1/18 , C22F1/00
摘要： PURPOSE:To obtain a fuel clad pipe having high corrosion resistance for a nuclear reactor without generation of a crack by specifying the reduction in area in the first cold working to be executed to a Zr-base alloy, more particulary a blank pipe thereof to be executed after the hardening treatment thereof to a specific value or below. CONSTITUTION:The reduction in area in the first cold working to be executed after the (alpha+beta) or beta phase hardening treatment is specified to =2 passes of cold working and >=3 passes of annealing treatments after the first cold or warm plastic working to be executed after the hardening treatment. The Zr-base alloy having high corrosion resistance and excellent resistance to nodular cracking is obtd. without cracking by the above-mentioned method.

85. 发明专利

JPS60221560A MANUFACTURE OF ZIRCONIUM ALLOY 失效
公开(公告)号：JPS60221560A
公开(公告)日：1985-11-06
申请号：JP7739984
申请日：1984-04-16
申请人： HITACHI LTD
发明人： NAKAJIMA JIYUNJIROU , SHINPO KATSUTOSHI , YASUDA TETSUO , ASANO RINICHI , INAGAKI MASATOSHI
IPC分类号： C22F1/18 , C22F1/00
摘要： PURPOSE:To manufacture a nuclear fuel cladding pipe with high corrosion resistance by quenching a hot worked Zr alloy plate from a specified temp. and subjecting it to cold plastic working and annealing plural times. CONSTITUTION:When a fuel cladding pipe for a nuclear power plant is manufactured with a Zr alloy such as zircaloy-2, a Zr alloy ingot is worked into a plate by hot rolling or other process. This plate is hardened by heating to >=870 deg.C in a temp. range in which alpha- and beta-phase are included, holding at the temp. for >=30sec, and quenching to 500 deg.C at >=100 deg.C/sec cooling rate to form a fine acicular structue consisting of fine grains. The hardened plate is subjected to cold plastic working and annealing plural times to manufacture a nuclear fuel cladding pipe. This Zr alloy cladding pipe prevents nodular corrosion in a nuclear reactor for a long period.

86. 发明专利

JPS59214794A Method of measuring cladding thickness of composit type fuelcan 失效
标题翻译：测量组合型FUELCAN的粘合厚度的方法
公开(公告)号：JPS59214794A
公开(公告)日：1984-12-04
申请号：JP8771783
申请日：1983-05-20
申请人： Hitachi Ltd
发明人： IMAHASHI HIROMICHI , INAGAKI MASATOSHI , AKAHORI KIMIHIKO , SASAKI SOUJI , UMEHARA HAJIME
IPC分类号： G21C17/06

87. 发明专利

JPS58224139A Zirconium alloy with high corrosion resistance 失效
标题翻译：具有高耐腐蚀性的ZIRCONIUM合金
公开(公告)号：JPS58224139A
公开(公告)日：1983-12-26
申请号：JP10540382
申请日：1982-06-21
申请人： Hitachi Ltd
发明人： INAGAKI MASATOSHI , JINBO RIYUUTAROU , KUNIYA KEIICHI , MASAOKA ISAO , MAKI HIDEO
IPC分类号： C22C16/00 , C22F1/18
CPC分类号： C22F1/186
摘要： PURPOSE: To inhibit nodular corrosion and to prevent an oxide film from being made thick or peeled off by adding prescribed percentages of Sn, Fe, Cr and Ni and carrying out heat treatment at a prescribed temp.
CONSTITUTION: A Zr alloy contg., by weight, 1W2% Sn, 0.05W0.3% Fe and/or 0.05W0.2% Cr (Fe+Cr ≥0.28%) and 0W0.1% Ni is forged. The amount of each of Sn, Fe and Cr to be contained is not less than the solubilization limit. The forged alloy is subjected to soln. heat treatment by heating at 825W965°C at which α and β phases are present for ≤10min and quenching. The alloy is then worked and annealed by heating at 400W700°C for 1W5hr to relieve the work strain. The resulting Zr alloy causes no nodular corrosion and has superior corrosion resistance. Using the Zr alloy the thickness of a structural member of a nuclear reactor can be reduced.
COPYRIGHT: (C)1983,JPO&Japio
摘要翻译：目的：通过添加规定百分比的Sn，Fe，Cr和Ni，在规定的温度下进行热处理，抑制结节腐蚀，防止氧化膜变厚或剥离。构成：以重量计，含有1-2％Sn，0.05-0.3％Fe和/或0.05-0.2％Cr（Fe + Cr> = 0.28％）和0-0.1％Ni的Zr合金被锻造。所含有的Sn，Fe，Cr中的每一个都不小于溶解极限。锻造合金经过溶胶。在825-965℃加热进行热处理，其中存在α和β相<10min并淬火。然后通过在400-700℃加热1-5小时来对合金进行加工和退火以减轻工作应变。所得到的Zr合金不会发生结节腐蚀并具有优异的耐腐蚀性。使用Zr合金，能够降低核反应堆的结构体的厚度。

88. 发明专利

JPS5822366A PREPARATION OF ZIRCONIUM BASE ALLOY 失效
公开(公告)号：JPS5822366A
公开(公告)日：1983-02-09
申请号：JP11974181
申请日：1981-07-29
申请人： HITACHI LTD
发明人： INAGAKI MASATOSHI , JINBO RIYUUTAROU , KUNIYA KEIICHI , MASAOKA ISAO , MAKI HIDEO
IPC分类号： C22F1/18
摘要： PURPOSE:To obtain a Zr base alloy having high corrosion resistance and excellent mechanical properties, by a method wherein the Zr base alloy is subjected to final hot working and two times or more of annealings are applied thereto posterior to cold working after solid solution treatment. CONSTITUTION:For example, in preparing a fuel rod coating pipe made of a Zr base alloy, the ingot thereof is molded into a round billet by beta-forging after alpha- forging and solution heat treatment and the molded billet is formed into a hollow billet by mechanical working and the inner surface thereof is coated with copper. In the next stage, this coated hollow billet is formed into a base pipe by hot extrusion and a rolled pipe is obtained by repeating cold rollings and annealings three times respectively. Herein, after[alpha+beta]or beta quenching, plural times of cold working and annealing especially at about 500-640 deg.C are applied. By this method, said pipe is rapidly quenched from an[alpha+beta]phase temp. range to obtain an alloy having a martensite structure containing an alloying added element in a saturated condition as a solid solution in which ultrafine intermetallic compound is uniformly precipitated and the purpose can be attained.

89. 发明专利

JPS5813487A DIFFUSION BONDING METHOD 失效
公开(公告)号：JPS5813487A
公开(公告)日：1983-01-25
申请号：JP10987281
申请日：1981-07-13
申请人： HITACHI LTD
发明人： FUKUMAKI TAKASHI , FUNAMOTO TAKAO , OGURA SATOSHI , INAGAKI MASATOSHI , JINBO RIYUUTAROU , SASAKI TOSHIMI , NAGAYAMA NOBUNARI
IPC分类号： B23K20/00 , B23K20/16 , B23K35/00
摘要： PURPOSE:To obtain a fayed surface having the property equal to that of base material in a short time by forming a low m.p. alloy layer of a diffusion speed higher than the diffusion speed of the main constituting elements in the base material beforehand on one of the surfaces to be joined, then bringing the fayed surface into contact with each other. CONSTITUTION:Base materials are selected from ultra heat resistant alloys of Co-, Ni-, Fe-, Ti groups. A low m.p. alloy later contg. additive elements having a m.p. lower than that of the base metals and having a diffusion speed higher than the diffusion peed of the main constituting elements in the base materials is formed on at least one surface to be joined of the base materials. The fayed surfaces of the base materials formed of the low m.p. alloy layer are brought into contact with each other and the base materials are heated in a non-oxidative atmosphere, whereby the materials are subjected to a diffusion treatment. As the heating temp. rises, the alloy layer of a low m.p. melts first, and as time passes on, the mutual diffusion of the alloy layer of a low m.p. and the base materials progresses. When a certain time arrives, the alloy layer before the joining no longer exists and said layer has the metallic structure equivalent to the structure of the base materials.

90. 发明专利

JPS5744486A Laser working device 失效
标题翻译：激光工作装置
公开(公告)号：JPS5744486A
公开(公告)日：1982-03-12
申请号：JP11976780
申请日：1980-09-01
申请人： Hitachi Ltd
发明人： INAGAKI MASATOSHI , UNNO TOMIO , TAKAHASHI SHIGERU , JINBOU RIYUUTAROU , SHIDA TOMOHIKO
IPC分类号： B23K26/12 , B23K26/02
摘要： PURPOSE:To prevent the temp. rise of reflecting mirrors, and obtain weld zones of stable depth of penetration by providing means of blowing cooling gas to the reflecting mirrors in a laser working device. CONSTITUTION:Laser light 10 is conducted to a spherical reflecting mirror 4e by 4 pieces of plane reflecting mirrors 4a-4d. The laser light reflected by the mirror 4e is condensed and is irradiated to a weld zone 12. At this time, a rotary head rotating part 1 is rotated by a motor 2 and a belt 8, and therefore a pipe 14 is circumferentially welded to a pipe plate 13. At this time, a gas is blown to the reflecting mirrors via a gas supply pipe 5, a gas storage groove 6 provided over the entire circumference of the nonrotating part, gas lead-in ports 9 provided at two places in the rotating part and gas nozzles blowing the gas to the reflecting mirrors, whereby the mirrors are cooled. By this gas cooling, the temp. rise of the reflecting mirrors is reduced, and the weld zone 12 having stable depth of penetration is obtained.
摘要翻译：目的：防止温度并且通过在激光加工装置中通过向反射镜吹送冷却气体来获得稳定的穿透深度的焊接区域。构成：激光10通过4片平面反射镜4a-4d传导到球面反射镜4e。由反射镜4e反射的激光被冷凝并照射到焊接区12.此时，旋转头旋转部1由电动机2和带8旋转，因此管14周向焊接到此时，气体通过气体供给管5，设置在非旋转部的全周的气体容纳槽6而被吹送到反射镜，气体导入口9设置在非旋转部13的两处旋转部分和气体喷嘴将气体吹送到反射镜，由此使反射镜冷却。通过这种气体冷却，减少反射镜的上升，获得具有稳定的穿透深度的焊接区域12。

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