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    내산화성 페라이트계 스테인리스강, 그 제조 방법 및 이를 사용한 연료 전지 접속자
    3.
    发明公开
    내산화성 페라이트계 스테인리스강, 그 제조 방법 및 이를 사용한 연료 전지 접속자 有权
    耐氧化铁素不锈钢，钢制造方法和使用钢的燃料电池互连

    公开(公告)号：KR1020130061053A

    公开(公告)日：2013-06-10

    申请号：KR1020120118679

    申请日：2012-10-24

    Applicant: 한국과학기술연구원

    Inventor： 김동익 ,  김병규 ,  김주헌 ,  최인석 ,  심재혁 ,  조영환 ,  정우상 ,  서진유 ,  이영수

    IPC: C22C38/00 ,  H01M8/02 ,  C21D6/00

    CPC classification number: Y02P70/56 ,  C22C38/18 ,  C21D6/002 ,  C22C38/001 ,  C22C38/005 ,  C22C38/04 ,  C22C38/06 ,  C22C38/14 ,  C22C38/16 ,  H01M8/0202

    Abstract: PURPOSE: Oxidation resistant ferritic stainless steel, a method of manufacturing the same, and a fuel cell connector using the same are provided to obtain a fuel cell with superior cell performance and reduced Cr volatility by using the ferritic stainless steel, which includes Cu with superior conductivity, as the fuel cell connector. CONSTITUTION: Oxidation resistant ferritic stainless steel comprises a base material of ferrite stainless steel including Fe, Cr, Mn, and Cu element and an oxide of spinel structure including at least one among Cu, Mn, and Cr. The content of the Cu in the ferritic stainless steel is 1.5-7.5 wt%. The ferritic stainless steel further includes Al, Ti, C, and N.

    Abstract translation: 目的：提供耐氧化铁素体不锈钢及其制造方法和使用其的燃料电池连接器，以获得具有优异电池性能的燃料电池，并且通过使用包含Cu的优异的铁素体不锈钢来降低Cr挥发度 电导率，作为燃料电池连接器。 构成：耐氧化铁素体不锈钢包括铁素体不锈钢的基体材料，包括Fe，Cr，Mn和Cu元素，以及包括Cu，Mn和Cr中的至少一种的尖晶石结构的氧化物。 铁素体不锈钢中的Cu含量为1.5〜7.5重量％。 铁素体不锈钢还包括Al，Ti，C和N.

    페라이트계 내열강 및 그 제조 방법
    6.
    发明公开
    페라이트계 내열강 및 그 제조 방법 无效
    耐热钢及其制造方法

    公开(公告)号：KR1020090118271A

    公开(公告)日：2009-11-18

    申请号：KR1020080043957

    申请日：2008-05-13

    Applicant: 한국과학기술연구원

    Inventor： 정우상 ,  정순효 ,  심재혁 ,  김동익 ,  이승철 ,  조영환

    IPC: C22C38/30 ,  C21D1/00

    CPC classification number: C22C38/30 ,  C21D2211/005 ,  C22C33/00 ,  C22C38/001 ,  C22C38/004 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/32 ,  C22C2202/00

    Abstract: PURPOSE: Ferritic resisting steel and a manufacturing method thereof are provided to increase driving efficiency of a power plant, and to improve creep strength to the constant level. CONSTITUTION: A manufacturing method of ferritic resisting steel comprises the following steps of: preparing pre-processed steel(S10); performing an austenizing process of the pre-processed steel at a temperature of 1050°C ~ 1150°C(S20); and performing a tempering process of the pre-processed steel at the temperature of 650°C ~ 780°C(S30). The -processed steel includes chrome of 8 ~ 12 wt%, cobalt of 1 ~ 5 wt%, nitrogen of 0.02 ~ 0.1 wt%, vanadium of 0.1 ~ 0.3 wt%, niobium of 0.03 ~ 0.1 wt% and carbon etc.

    Abstract translation: 目的：提供铁素体耐钢及其制造方法，以提高发电厂的驱动效率，并将蠕变强度提高到恒定水平。 构成：铁素体抗钢的制造方法包括以下步骤：制备预处理钢（S10）; 在1050℃〜1150℃的温度下进行预处理钢的奥氏体化处理（S20）。 并在650℃〜780℃的温度下进行预处理钢的回火处理（S30）。 处理钢包括8〜12重量％的铬，1〜5重量％的钴，0.02〜0.1重量％的氮，0.1〜0.3重量％的钒，0.03〜0.1重量％的铌和碳。

    ＮｄＦｅＢ계 소결 자석 및 그 제조 방법
    7.
    发明公开
    ＮｄＦｅＢ계 소결 자석 및 그 제조 방법 失效
    基于NDFEB的烧结磁体及其制造方法

    公开(公告)号：KR1020020008907A

    公开(公告)日：2002-02-01

    申请号：KR1020000041847

    申请日：2000-07-21

    Applicant: 한국과학기술연구원

    Inventor： 김윤배 ,  정우상 ,  정원용

    IPC: H01F41/02

    Abstract: PURPOSE: NdFeB-based sintering magnet and a method for fabricating the same are provided to improve a performance of a sintering magnet by increasing a coercivity of NdFeB-based sintering magnet without reducing a residual magnetic flux density and a maximum energy product. CONSTITUTION: A method for making NdFeB-based sintering magnet includes a step for preparing NdFeB-based alloy powder, a crushing step, and a thermal processing step. In the step for preparing NdFeB-based alloy powder, the NdFeB-based alloy powder of weight % includes Nd(29.00-33.00), Dy(1.00 below), Al(0.30 below), Cu(0.05 below), B(0.90-1.20), and Fe. In the crushing step, FeGa3 compound powder of 0.01- 0.80 weight % is mixed with the NdFeB-based alloy. In the thermal processing step, the crushed mixed powder is compression-molded and sintered after receiving a magnetic field, and is then thermal-processed.

    Abstract translation: 目的：提供基于NdFeB的烧结磁体及其制造方法，以通过提高NdFeB系烧结磁体的矫顽力而不降低剩余磁通密度和最大能量乘积来提高烧结磁体的性能。 构成：制造NdFeB系烧结磁体的方法包括制备NdFeB系合金粉末的步骤，粉碎步骤和热处理步骤。 在制备NdFeB基合金粉末的步骤中，重量％的NdFeB基合金粉末包括Nd（29.00-33.00），Dy（1.00以下），Al（0.30以下），Cu（0.05以下），B（0.90- 1.20）和Fe。 在破碎步骤中，将0.01-0.80重量％的FeGa3复合粉末与NdFeB基合金混合。 在热处理工序中，粉碎后的混合粉末在接收到磁场后进行压缩成型，烧结后进行热处理。

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