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    • 8. 发明公开
    • 마그네슘 열간 압연 방법 및 마그네슘 열간 압연 장치
    • MAGNESIUM热轧法和镁热轧装置
    • KR1020100072349A
    • 2010-06-30
    • KR1020107010398
    • 2008-10-15
    • 아이에이치아이 메탈테크 가부시키가이샤가부시키가이샤 아이에이치아이
    • 다조에노부히로혼조히사시마츠무라히데오야나이가츠히코야나이후미타카
    • B21B3/00B21B1/26
    • B21B1/34B21B3/00B21B45/004B21B2273/12
    • A magnesium hot rolling method comprises a first rolling step performing reciprocal rolling of magnesium plates (M0, M1) between an upstream side heating furnace (2) arranged on the upstream side of a rolling machine (1) for heating the magnesium plates (M0, M1) and a downstream side heating furnace (3) arranged on the downstream side of the rolling machine (1) for heating the magnesium plates (M0, M1), and a second rolling step performing reciprocal rolling of the magnesium plates (M0, M1) while retaining heat in the upstream side and downstream side ends thereof between an upstream side heat retention device (5) for carrying/heat-retaining the heated magnesium plates (M0, M1) and a downstream side heat retention device (6) for carrying/heat-retaining the heated magnesium plates (M0, M1). According to the magnesium hot rolling apparatus of the present invention and the magnesium hot rolling method employing the apparatus, quality of a product can be prevented from deterioration due to temperature variation during hot rolling of a magnesium alloy.
    • 镁热轧方法包括:在设置在轧制机(1)的上游侧的上游侧加热炉(2)之间进行镁板(M0,M1)的往复轧制的第一轧制工序,用于加热镁板(M0, M1)和布置在轧制机(1)的下游侧用于加热镁板(M0,M1)的下游侧加热炉(3),以及进行镁板(M0,M1)的往复轧制的第二轧制步骤 ),同时在用于承载/保温加热的镁板(M0,M1)的上游侧保温装置(5)和下游侧保温装置(6)之间的上游侧和下游侧的端部保持热量, /保温加热的镁板(M0,M1)。 根据本发明的镁热轧装置和使用该装置的镁热轧方法,可以防止由于镁合金的热轧过程中的温度变化而使产品的质量劣化。
    • 9. 发明公开
    • 롤 편심 해석 방법, 및 롤 편심 제거 장치
    • 滚动去中心分析方法和滚动去中心消除装置
    • KR1020080114534A
    • 2008-12-31
    • KR1020080058577
    • 2008-06-20
    • 제이에프이 스틸 가부시키가이샤아이에이치아이 메탈테크 가부시키가이샤가부시키가이샤 아이에이치아이
    • 호리도시후미스즈키히데유키후카미즈다카시
    • B21B37/66B21B37/00
    • A roll de-centering analysis method and a roll de-centering removing apparatus of a rolling mill are provided to estimate top and bottom eccentric component simply and precisely. A method for analyzing the de-centering of a back-up roll in a rolling mill comprises a first analysis step(S1) for performing Fourier analysis at every rotation section while rotating the back-up roll pair a fixed number of times and setting a first eccentricity removal control value; a second analysis step(S2a,S2b) for shifting relative topology determined by the degree of the Fourier analysis by 180‹, performing Fourier analysis while rotating the rolling mill based on the first eccentricity removal control value a fixed number of times, and setting a second eccentricity removal control value by modifying the first eccentricity removal control value; and a third analysis step(S3a,S3b) for shifting the relative topology by 180‹again, performing Fourier analysis while rotating the rolling mill based on the second eccentricity removal control value a fixed number of times, and setting a third eccentricity removal control value by modifying the second eccentricity removal control value.
    • 提供了一种轧辊定心分析方法和一种轧机的轧辊去中心去除装置,以简单且精确地估计顶部和底部偏心部件。 用于分析轧机中的支承辊的去定心的方法包括:第一分析步骤(S1),用于在每个旋转部分执行傅立叶分析,同时使支撑辊对旋转固定次数并设定 第一偏心率去除控制值; 第二分析步骤(S2a,S2b),用于将通过傅立叶分析的程度确定的相对拓扑移动180°,在基于第一偏心度去除控制值固定次数的同时旋转轧机时进行傅立叶分析,并且设置 通过改变第一偏心率去除控制值来确定第二偏心度去除控制值; 以及第三分析步骤(S3a,S3b),用于相对于所述相对拓扑结构再次移动180°,在基于所述第二偏心量去除控制值固定次数的同时使所述轧机旋转的同时执行傅立叶分析,并且设定第三偏心度去除控制值 通过修改第二偏心度去除控制值。