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    • 2. 发明授权
    • β-니오븀 석출물의 분포 제어를 통한 내식성이 우수한지르코늄 합금 핵연료피복관의 제조방법
    • 通过控制BETA而制造具有优异耐腐蚀性的核燃料封闭管的锆合金的制备方法; -NB分布
    • KR100835830B1
    • 2008-06-05
    • KR1020070003261
    • 2007-01-11
    • 한국원자력연구원한국수력원자력 주식회사
    • 정용환박정용박상윤이명호최병권백종혁김준환김현길
    • G21C21/02G21C3/07G21C3/06B21C37/00
    • Y02E30/40
    • A method for preparing zirconium alloys for nuclear cladding tubes having high corrosion resistance by control of beta-Nb distribution is provided to obtain the high corrosion resistance by forming distributed precipitates minutely and uniformly. A method for preparing zirconium alloys for nuclear cladding tubes having high corrosion resistance by control of beta-Nb includes the steps of: preparing an ingot by solving a mixture of zirconium alloy elements(S1); forging the ingot prepared in the step S1 in a beta-phase region(S2); performing homogenization-heat processing for the ingot forged in the step S2 and rapidly cooling the ingot(S3); extruding the ingot cooled in the step S3(S4); performing first heat processing for an extrusion extruded in the step S4(S5); preparing a nuclear cladding tube of zirconium alloys by cold-working and medium-heat-processing the extrusion heat-processed in the step S5(S6); rapidly cooling the nuclear cladding tubes of the zirconium alloys prepared in the step S6(S7); and performing final heat processing for the nuclear cladding tubes of the zirconium alloys in the step S7(S8).
    • 提供了通过控制β-Nb分布来制备具有高耐蚀性的核包层管的锆合金的方法,以通过均匀地形成分布的沉淀物来获得高耐腐蚀性。 通过控制β-Nb制备具有高耐腐蚀性的核包层管的锆合金的方法包括以下步骤:通过解决锆合金元素(S1)的混合物来制备锭; 将步骤S1中制备的锭锻造成β相区域(S2); 对步骤S2中锻造的锭进行均质化 - 热处理,并快速冷却锭(S3); 挤压步骤S3(S4)中冷却的锭料; 对步骤S4(S5)中挤出的挤出进行第一热处理; 在步骤S5(S6)中通过冷加工和中加热处理挤出热处理制备锆合金的核包层管; 快速冷却步骤S6中制备的锆合金的核包层管(S7); 并在步骤S7中对锆合金的核包层管执行最终的热处理(S8)。
    • 4. 发明公开
    • 금속 표면 고착성 방사능 오염 산화막 제거를 위한 무착화성 화학 제염제 및 이를 이용한 화학 제염방법
    • 烧结免费化学除去试剂以去除金属表面上的渗透性氧化物层和使用其的化学除去方法
    • KR1020140095266A
    • 2014-08-01
    • KR1020130008013
    • 2013-01-24
    • 한국원자력연구원한국수력원자력 주식회사
    • 원휘준정종헌박상윤최왕규박정순문제권윤인호최병선
    • G21F9/28G21F9/06
    • G21F9/004C23G1/02C23G1/085C23G1/10C23G1/106
    • The present invention relates to a chelate-free chemical decontamination reagent for removing a metal surface-adhering radioactive-contaminated oxide layer including a reducing agent, a reducing metal ion, and an inorganic acid. The chemical decontamination reagent according to the present invention can effectively dissolve a metal surface-adhering radioactive-contaminated oxide layer at an appropriate temperature to remove it. Since decontamination is performed through a process of bringing a radioactive-contaminated oxide into contact with the chemical decontamination reagent, it is economical in terms of processing cost and processing time. Also, since a reducing agent is used as a primary decontamination reagent, without using an organic acid complexing agent such as a conventional oxalic acid, or the like, a residual reducing agent can be easily decomposed to be removed by using an oxidizing agent after decontamination, minimizing generation of secondary radioactive waste through easy decomposition of the decontamination reagent and effectively removing radioactive nuclide remaining in the decontamination solution.
    • 本发明涉及一种用于去除包含还原剂,还原金属离子和无机酸的金属表面附着放射性污染氧化物层的无螯合物的化学去污剂。 根据本发明的化学去污试剂可以在适当温度下有效地溶解金属表面附着的放射性污染氧化物层以除去它。 由于通过使放射性污染的氧化物与化学去污试剂接触的过程进行去污,因此在加工成本和加工时间方面是经济的。 此外,由于使用还原剂作为主要的去污试剂,在不使用常规草酸等有机酸络合剂的情况下,残留还原剂可以容易地分解,以便在去污后使用氧化剂除去 通过容易地分解去污剂并有效去除残留在去污溶液中的放射性核素,从而最小化二次放射性废物的产生。
    • 6. 发明公开
    • 고온 가압수 및 수증기 부식환경에서 우수한 내식성을 보유한 핵연료피복관용 지르코늄 합금 조성물 및 이를 이용한 지르코늄 합금 핵연료 피복관의 제조방법
    • 在高温加压水和蒸汽中具有高耐氧化性的核燃料层的ZIRCONIUM合金,以及使用其的ZIRCONIUM合金核燃料层的制备方法
    • KR1020130098622A
    • 2013-09-05
    • KR1020120020276
    • 2012-02-28
    • 한국원자력연구원한국수력원자력 주식회사
    • 박정용김현길정양일최병권박상윤박동준구양현
    • C22C16/00G21C3/07
    • Y02E30/40C22C16/00B21C23/00C22F1/002C22F1/186G21C3/07
    • PURPOSE: A zirconium alloying composition for a nuclear fuel cladding pipe and a method of manufacturing a nuclear fuel cladding pipe of zirconium alloys using thereof are provided to obtain an excellent corrosion resistance of a nuclear fuel cladding pipe not only in a normal operation condition of a nuclear reactor but also in a hot-pressing water and a steam corrosion environment. CONSTITUTION: A zirconium alloying composition for a nuclear fuel cladding pipe comprises1.0-1.6 weight% of niobium (Nb), more than one kind of element selected from a group consisting of iron (Fe), chrome (Cr), and copper (Cu), 0.1-0.15 weight% of oxygen (O), 0.008-0.012 weight% of silicon (Si), and remainders of zirconium (Zr). If iron (Fe) is selected, 0.1-0.6 weight% of iron (Fe) is included. If chrome (Cr) is selected, 0.1-0.15 weight% of chrome (Cr) is included. If copper (Cu) is selected, 0.05-0.3 weight% of copper (Cu) is included. 0.15-0.3 weight% of tin (Sn) is included. [Reference numerals] (AA) Amount of weight increase (mg/dm^2); (BB) 400 °C steam 750 days; (CC) Example; (DD) Comparative example
    • 目的:提供一种用于核燃料包层管的锆合金组合物和使用其的锆合金的核燃料包覆管的制造方法,其不仅在核燃料包层管的正常运行条件下获得优异的核燃料包覆管的耐腐蚀性 核反应堆,也在热压水和蒸汽腐蚀环境中。 构成:用于核燃料包层管的锆合金组合物包含1.0-1.6重量%的铌(Nb),选自铁(Fe),铬(Cr)和铜( Cu),0.1-0.15重量%的氧(O),0.008-0.012重量%的硅(Si)和余量的锆(Zr)。 如果选择铁(Fe),则包括0.1-0.6重量%的铁(Fe)。 如果选择铬(Cr),则包含0.1-0.15重量%的铬(Cr)。 如果选择铜(Cu),则包括0.05-0.3重量%的铜(Cu)。 包含0.15-0.3重量%的锡(Sn)。 (AA)重量增加量(mg / dm ^ 2); (BB)400℃蒸汽750天; (CC)实例; (DD)比较例
    • 7. 发明公开
    • 가혹한 원자로 가동조건에서 내산화성이 우수한 핵연료피복관용 지르코늄 합금 조성물 및 이를 이용한 지르코늄 합금 핵연료 피복관의 제조방법
    • 用于核燃料层压的ZIRCONIUM合金,在严重的反应器操作条件下具有超级氧化电阻,以及使用其的ZIRCONIUM合金核燃料层的制备方法
    • KR1020130098621A
    • 2013-09-05
    • KR1020120020275
    • 2012-02-28
    • 한국원자력연구원한국수력원자력 주식회사
    • 박정용정양일김현길최병권박상윤박동준구양현
    • C22C16/00G21C3/06
    • G21C3/07C22C16/00C22F1/186G21C21/10Y02E30/40
    • PURPOSE: A zirconium alloying composition for a nuclear fuel cladding pipe and a method of manufacturing a nuclear fuel cladding pipe of zirconium alloys using thereof are provided to secure an excellent oxidation resistance of a nuclear fuel cladding pipe under an accident condition, and to manufacture a nuclear fuel cladding pipe complying with a power lifting, a load following, a super high burn-up, and a super long period operation condition. CONSTITUTION: A zirconium alloying composition for a nuclear fuel cladding pipe comprises 1.8-2.0 weight% of niobium (Nb), more than one kind of element selected from a group consisting of iron (Fe), chrome (Cr), and copper (Cu), If iron (Fe) is selected, 0.1-0.4 weight% of iron (Fe) is included. If chrome (Cr) is selected, 0.05-0.2 weight% of chrome (Cr) is included. If copper (Cu) is selected, 0.05-0.2 weight% of copper (Cu) is included. 0.01-0.1 weight% of tin (Sn) is included. [Reference numerals] (AA) Amount of weight increase (mg/dm^2); (BB) 1200 °C 1800 seconds; (CC) Example; (DD) Comparative example
    • 目的:提供一种用于核燃料包层管的锆合金组合物和使用其的锆合金的核燃料包层管的制造方法,以确保在事故条件下核燃料包覆管的优异的抗氧化性,并制造 符合动力提升,负载跟随,超高燃耗和超长期运行条件的核燃料覆层管。 构成:用于核燃料包层管的锆合金组合物包含1.8-2.0重量%的铌(Nb),选自铁(Fe),铬(Cr)和铜(Cu)中的一种以上的元素 ),如果选择铁(Fe),则含铁量(Fe)为0.1-0.4重量%。 如果选择铬(Cr),则包含0.05-0.2重量%的铬(Cr)。 如果选择铜(Cu),则含有0.05-0.2重量%的铜(Cu)。 包括0.01-0.1重量%的锡(Sn)。 (AA)重量增加量(mg / dm ^ 2); (BB)1200℃1800秒; (CC)实例; (DD)比较例
    • 8. 发明公开
    • 합금원소의 첨가량을 낮추어 부식저항성을 향상시킨 핵연료 피복관용 지르코늄 합금 조성물 및 이를 이용한 지르코늄 합금 핵연료 피복관의 제조방법
    • 通过减少合金元素的含量,制备了具有高耐腐蚀性的核燃料的ZIRCONIUM合金,以及使用其制备锆合金核燃料层的制备方法
    • KR1020130098619A
    • 2013-09-05
    • KR1020120020272
    • 2012-02-28
    • 한국원자력연구원한국수력원자력 주식회사
    • 박정용최병권김현길박상윤정양일박동준구양현
    • C22C16/00G21C3/06
    • G21C3/07C22C16/00C22F1/186G21C21/10Y02E30/40
    • PURPOSE: A zirconium alloying composition for a nuclear fuel cladding pipe and a method of manufacturing a nuclear fuel cladding pipe of zirconium alloys using thereof are provided to secure an excellent oxidation resistance of the nuclear fuel cladding pipe not only in a normal operation condition of a nuclear reactor but also under an accident condition. CONSTITUTION: A zirconium alloying composition for a nuclear fuel cladding pipe comprises 0.2-0.5 weight% of niobium (Nb), 0.2-0.6 weight% of iron (Fe), 0.3-0.5 weight% of chrome (Cr), 0.1-0.15 weight% of oxygen (O), 0.008-0.012 weight% of silicon (Si), and remainders of zirconium (Zr). A total content of niobium, iron, and chrome is 1.1-1.2 weight%, and a content of tin (Sn) or copper (Cu) is 0.05-0.15 weight%. The zirconium alloying composition comprises a content of 0.05-0.15 weight% of tin (Sn) and copper (Cu) respectively. [Reference numerals] (AA) Amount of weight increase (mg/dm^2); (BB) 400 °C steam; (CC) 240 days; (DD) 750 days; (EE) Example 1; (FF) Example 2; (GG) Example 3; (HH) Comparative example 1
    • 目的:提供用于核燃料包层管的锆合金组合物和使用其的锆合金的核燃料包覆管的制造方法,以确保核燃料包覆管的优异的抗氧化性,不仅在正常运行状态下 核反应堆,但也在事故条件下。 构成:用于核燃料包层管的锆合金组合物包含0.2-0.5重量%的铌(Nb),0.2-0.6重量%的铁(Fe),0.3-0.5重量%的铬(Cr),0.1-0.15重量% 氧(O)%,硅(Si)0.008-0.012重量%,锆(Zr)余量。 铌,铁和铬的总含量为1.1〜1.2重量%,锡(Sn)或铜(Cu)的含量为0.05〜0.15重量%。 锆合金组合物分别含有0.05-0.15重量%的锡(Sn)和铜(Cu)的含量。 (AA)重量增加量(mg / dm ^ 2); (BB)400℃蒸汽; (CC)240天; (DD)750天; (EE)实施例1; (FF)实施例2; (GG)实施例3; (HH)比较例1
    • 10. 发明授权
    • 우수한 내식성을 갖는 고농도 철 함유 지르코늄 합금 조성물 및 이의 제조방법
    • 具有优异耐腐蚀性的高浓度含铁锆合金组合物及其制造方法
    • KR100916642B1
    • 2009-09-08
    • KR1020080085104
    • 2008-08-29
    • 한국원자력연구원한국수력원자력 주식회사
    • 정용환김현길박상윤이명호최병권백종혁박정용김준환
    • C22C16/00
    • 본 발명은 우수한 내식성을 갖는 고농도 철 함유 지르코늄 합금 조성물 및 이의 제조방법에 관한 것으로, 구체적으로 철(Fe) 0.5 ~ 1.0 중량%, 크롬(Cr) 0.25 ~ 0.5 중량%, 산소(O) 0.06 ~ 0.18 중량%에 주석(Sn) 0.20 ~ 0.5 중량%, 니오븀(Nb) 0.1 ~ 0.3 중량%, 구리(Cu) 0.05 ~ 0.3 중량% 중에서 선택된 하나 이상의 원소 및 잔부 지르코늄(Zr)으로 구성되는 우수한 내식성을 갖는 고농도 철 함유 지르코늄 합금 조성물 및 이의 제조방법에 관한 것이다. 본 발명의 지르코늄 합금은 우수한 내식성을 가지므로 경수로 및 중수로형 원자로의 핵연료집합체에서 사용되는 핵연료피복관, 지지격자 및 원자로내 구조물 재료로 이용될 수 있다.
      철, 구리, 주석, 니오븀, 산소, 지르코늄 합금, 핵연료 피복관, 내식성
    • 本发明涉及一种高密度含有铁锆合金组合物及其具有优异的耐腐蚀性的制造方法,尤其是铁(Fe)0.5〜1.0重量%,铬(Cr)0.25〜0.5重量%,氧(O)0.06〜0.18 具有由锡(Sn)0.20〜0.5重量%,铌(Nb)0.1〜0.3%(重量)的优异的耐腐蚀性,铜(Cu)0.05〜一种或由0.3%(重量%)以上选定(重量)的元素以及余量的锆(Zr) 高浓度含铁锆合金组合物及其制造方法。 根据本发明因此可具有优异的耐腐蚀性的锆合金可以被用作燃料包壳,所述内部结构支撑格栅和反应器材料的轻水反应堆和重水反应堆的燃料组件使用。