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公开(公告)号：FR2799209B1
公开(公告)日：2001-11-30
申请号：FR9912247
申请日：1999-09-30
Applicant: FRAMATOME SA
Inventor： CHARQUET DANIEL , MARDON JEAN PAUL , SENEVAT JEAN
Abstract: The invention concerns a zirconium alloy, containing, besides unavoidable impurities, 0.02 to 1 % iron, 0.8 to 2.3 % niobium, less than 2000 ppm of tin, less than 2000 ppm of oxygen, less than 100 ppm of carbon, from 5 to 35 ppm of sulphur and less than a total of 0.25 % of chromium and/or vanadium. The ratio of niobium content over iron content, optionally completed with chromium and/or vanadium content, is less than 3. The invention is applicable to nuclear reactor components.
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公开(公告)号：ES2118663T3
公开(公告)日：1998-09-16
申请号：ES96400203
申请日：1996-01-29
Applicant: FRAMATOME SA , COGEMA
Inventor： MARDON JEAN-PAUL , SEVENAT JEAN , CHARQUET DANIEL
Abstract: A tube, for use in a fuel canister or to guide a control rod in a nuclear reactor, is made of an alloy comprising mainly Zr plus 0.4-0.6 wt.% Sn, 0.5-0.8% Fe, 0.35-0.75% V, 0.10-0.18% O, 100-180 ppm C and 50-120 ppm Si, the alloy being completely recrystallised. Also claimed is a process for mfg. the above tube in which a cast ingot of the above alloy is forged into a bar, then heated to the beta phase and quenched in water, annealed in the alpha phase at 640-760, pref. 730 degrees C, drawn and pierced to tubular form, annealed again at 640-760, pref. 700 degrees C, and then subjected to successive cold rollings to reduce the tube wall thickness with heating to 640-760 degrees C under vacuum or inert atmosphere between rollings. Finally the tube is annealed at 560-650 degrees C. The parameter A representing the sum of heat treatments is between 10 and 10 .
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公开(公告)号：DE69502081T2
公开(公告)日：1998-08-06
申请号：DE69502081
申请日：1995-12-26
Applicant: FRAMATOME SA , COGEMA , ZIRCOTUBE
Inventor： MARDON JEAN-PAUL , SEVENAT JEAN , CHARQUET DANIEL
Abstract: A process for mfg. a tube, for forming all or the external part of a nuclear fuel rod cladding or a guide tube for a nuclear fuel assembly, involves (a) producing a rod of Zr alloy contg. 50-250 ppm. Fe, 0.8-1.3 wt.% Nb, less than 1600 ppm. O, less than 200 ppm. C and less than 120 ppm. Si; (b) water quenching the rod from 1000-1200 degrees C; (c) heating to 600-800 degrees C and extruding a tube blank; (d) cold rolling to tube in at least four passes with intermediate anneals at 560-620 degrees C; and (e) subjecting to final heat treatment at 560-620 degrees C. All the heat treatments are carried out in vacuum or inert atmos. Also claimed is a cladding or guide tube for a fuel assembly of a PWR, the tube consisting of the Zr alloy described above in the fully recrystallised condition.
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公开(公告)号：ES2114284T3
公开(公告)日：1998-05-16
申请号：ES95402944
申请日：1995-12-26
Applicant: FRAMATOME SA , COGEMA , ZIRCOTUBE
Inventor： MARDON JEAN-PAUL , SEVENAT JEAN , CHARQUET DANIEL
Abstract: A process for mfg. a tube, for forming all or the external part of a nuclear fuel rod cladding or a guide tube for a nuclear fuel assembly, involves (a) producing a rod of Zr alloy contg. 50-250 ppm. Fe, 0.8-1.3 wt.% Nb, less than 1600 ppm. O, less than 200 ppm. C and less than 120 ppm. Si; (b) water quenching the rod from 1000-1200 degrees C; (c) heating to 600-800 degrees C and extruding a tube blank; (d) cold rolling to tube in at least four passes with intermediate anneals at 560-620 degrees C; and (e) subjecting to final heat treatment at 560-620 degrees C. All the heat treatments are carried out in vacuum or inert atmos. Also claimed is a cladding or guide tube for a fuel assembly of a PWR, the tube consisting of the Zr alloy described above in the fully recrystallised condition.
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公开(公告)号：ZA9600612B
公开(公告)日：1997-07-28
申请号：ZA9600612
申请日：1996-10-26
Applicant: FRAMATOME SA
Inventor： MARDON JEAN-PAUL , SEVENAT JEAN , CHARQUET DANIEL
CPC classification number: G21C3/07 , G21Y2002/103 , G21Y2004/10 , G21Y2004/201 , Y02E30/40
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Patent Agency Ranking
公开(公告)号：ZA9511004B
公开(公告)日：1997-06-30
申请号：ZA9511004
申请日：1995-12-28
Applicant: FRAMATOME SA , COGEMA , ZIRCOTUBE
Inventor： MARDON JEAN-PAUL , SEVENAT JEAN , CHARQUET DANIEL
Abstract: A process for mfg. a tube, for forming all or the external part of a nuclear fuel rod cladding or a guide tube for a nuclear fuel assembly, involves (a) producing a rod of Zr alloy contg. 50-250 ppm. Fe, 0.8-1.3 wt.% Nb, less than 1600 ppm. O, less than 200 ppm. C and less than 120 ppm. Si; (b) water quenching the rod from 1000-1200 degrees C; (c) heating to 600-800 degrees C and extruding a tube blank; (d) cold rolling to tube in at least four passes with intermediate anneals at 560-620 degrees C; and (e) subjecting to final heat treatment at 560-620 degrees C. All the heat treatments are carried out in vacuum or inert atmos. Also claimed is a cladding or guide tube for a fuel assembly of a PWR, the tube consisting of the Zr alloy described above in the fully recrystallised condition.
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公开(公告)号：FR2730090B1
公开(公告)日：1997-04-04
申请号：FR9501026
申请日：1995-01-30
Applicant: FRAMATOME SA
Inventor： MARDON JEAN PAUL , SENEVAT JEAN , CHARQUET DANIEL
Abstract: A tube, for use in a fuel canister or to guide a control rod in a nuclear reactor, is made of an alloy comprising mainly Zr plus 0.4-0.6 wt.% Sn, 0.5-0.8% Fe, 0.35-0.75% V, 0.10-0.18% O, 100-180 ppm C and 50-120 ppm Si, the alloy being completely recrystallised. Also claimed is a process for mfg. the above tube in which a cast ingot of the above alloy is forged into a bar, then heated to the beta phase and quenched in water, annealed in the alpha phase at 640-760, pref. 730 degrees C, drawn and pierced to tubular form, annealed again at 640-760, pref. 700 degrees C, and then subjected to successive cold rollings to reduce the tube wall thickness with heating to 640-760 degrees C under vacuum or inert atmosphere between rollings. Finally the tube is annealed at 560-650 degrees C. The parameter A representing the sum of heat treatments is between 10 and 10 .
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公开(公告)号：CA2210326A1
公开(公告)日：1996-08-08
申请号：CA2210326
申请日：1996-01-26
Applicant: FRAMATOME SA , COGEMA
Inventor： SENEVAT JEAN , CHARQUET DANIEL , MARDON JEAN-PAUL
Abstract: Le tube permet de constituer une gaine ou un tube guide d'assemblage combustible nucléaire, caractérisé en ce que l'alliage contient, en poids, 1,0 à 1,7 % d'étain, 0,55 à 0,8 % de fer, 0,20 à 0,60 % au total d'au moins un des éléments chrome et vanadium et 0,10 à 0,18 % d'oxygène, les teneurs en carbone et en silicium étant respectivement entre 100 et 180 ppm et entre 50 et 120 ppm, l'alliage ne contenant, de plus, que du zirconium et des impuretés inévitables.
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公开(公告)号：FR2730090A1
公开(公告)日：1996-08-02
申请号：FR9501026
申请日：1995-01-30
Applicant: FRAMATOME SA
Inventor： MARDON JEAN PAUL , SENEVAT JEAN , CHARQUET DANIEL
Abstract: A tube, for use in a fuel canister or to guide a control rod in a nuclear reactor, is made of an alloy comprising mainly Zr plus 0.4-0.6 wt.% Sn, 0.5-0.8% Fe, 0.35-0.75% V, 0.10-0.18% O, 100-180 ppm C and 50-120 ppm Si, the alloy being completely recrystallised. Also claimed is a process for mfg. the above tube in which a cast ingot of the above alloy is forged into a bar, then heated to the beta phase and quenched in water, annealed in the alpha phase at 640-760, pref. 730 degrees C, drawn and pierced to tubular form, annealed again at 640-760, pref. 700 degrees C, and then subjected to successive cold rollings to reduce the tube wall thickness with heating to 640-760 degrees C under vacuum or inert atmosphere between rollings. Finally the tube is annealed at 560-650 degrees C. The parameter A representing the sum of heat treatments is between 10 and 10 .
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公开(公告)号：FR2730089A1
公开(公告)日：1996-08-02
申请号：FR9501025
申请日：1995-01-30
Applicant: FRAMATOME SA
Inventor： MARDON JEAN PAUL , SENEVAT JEAN , CHARQUET DANIEL
Abstract: A tube for forming a nuclear fuel assembly guide tube or sheath. The tube is made of an alloy containing 1.0-1.7 wt % of tin, 0.55-0.8 wt % of iron, 0.20-0.60 wt % total of chromium and/or vanadium, and 0.10-0.18 wt % of oxygen, carbon and silicon being present in amounts of 100-180 ppm and 50-120 ppm respectively, while the only other components of the alloy are zirconium and the unavoidable impurities.
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