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1.发明授权PROCEDE DE FABRICATION D'UN TUBE DE GAINAGE DE COMBUSTIBLE POUR REACTEUR NUCLEAIRE, ET TUBE AINSI OBTENU 有权用于生产燃料外套管用于核反应堆及其制品PIPE
公开(公告)号：EP1781833B1
公开(公告)日：2008-01-30
申请号：EP05790867.5
申请日：2005-07-19
申请人： Areva NP
CPC分类号： C22C16/00 , G21C3/07 , G21C21/00 , G21Y2002/103 , G21Y2004/10 , G21Y2004/20 , G21Y2004/40 , Y02E30/40
摘要： The invention relates to a method for production of a fuel casing tube for a nuclear reactor, characterised by the preparation of an ingot of an alloy of zirconium with the following composition by weight %: 0.8 % = Nb = 2.8 %, traces = Sn = 0.65 %, 0.015 % = Fe 0.40 %, C = 100ppm, 600ppm = O = 2300ppm, 5ppm = S = 100ppm, Cr + V = 0,25 %, Hf = 75ppm, F = 1ppm the remainder being zirconium and impurities arising from production, the ingot is then subjected to forging, a hardening and thermomoechanical treatments comprising cold laminations separated by intermediate annealing all intermediate annealing s being carried out at a temperature below the a ? a + ß transition temperature of the alloy, finishing with a recrystallisation annealing and resulting in the production of a tube, whereupon an optional external cleaning of the tube is carried out and a mechanical polishing of the external surface of the tube is carried out to give a roughness Ra less than or equal to 0,5?m. The invention further relates to a fuel cladding tube obtained thus.
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2.发明公开PROCEDE DE FABRICATION D'UN TUBE DE GAINAGE DE COMBUSTIBLE POUR REACTEUR NUCLEAIRE, ET TUBE AINSI OBTENU 有权用于生产燃料外套管用于核反应堆及其制品PIPE
公开(公告)号：EP1781833A1
公开(公告)日：2007-05-09
申请号：EP05790867.5
申请日：2005-07-19
申请人： Areva NP
CPC分类号： C22C16/00 , G21C3/07 , G21C21/00 , G21Y2002/103 , G21Y2004/10 , G21Y2004/20 , G21Y2004/40 , Y02E30/40
摘要： The invention relates to a method for production of a fuel casing tube for a nuclear reactor, characterised by the preparation of an ingot of an alloy of zirconium with the following composition by weight %: 0.8 % = Nb = 2.8 %, traces = Sn = 0.65 %, 0.015 % = Fe 0.40 %, C = 100ppm, 600ppm = O = 2300ppm, 5ppm = S = 100ppm, Cr + V = 0,25 %, Hf = 75ppm, F = 1ppm the remainder being zirconium and impurities arising from production, the ingot is then subjected to forging, a hardening and thermomoechanical treatments comprising cold laminations separated by intermediate annealing all intermediate annealing s being carried out at a temperature below the a ? a + ß transition temperature of the alloy, finishing with a recrystallisation annealing and resulting in the production of a tube, whereupon an optional external cleaning of the tube is carried out and a mechanical polishing of the external surface of the tube is carried out to give a roughness Ra less than or equal to 0,5µm. The invention further relates to a fuel cladding tube obtained thus.
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