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    • 2. 发明授权
    • 극저온 시험을 위한 가스 총 시스템 및 이를 이용한 충격 변형 시험방법
    • 用于低温测试的气枪系统和使用其测试震动变形的方法
    • KR101680452B1
    • 2016-11-28
    • KR1020150030529
    • 2015-03-04
    • 포항공과대학교 산학협력단
    • 안동현김형섭김우열박이주
    • G01N3/307
    • 본발명은가스총 시스템을이용하여시편을충격및 변형시키기이전에시편의온도를상온이하의원하는온도로낮출수 있도록하여상기시편이소정온도로냉각된상태에서상기시편을충격및 변형시킬수있는극저온시험을위한가스총 시스템및 이를이용한충격변형시험방법에관한것이다. 이를위한본 발명의가스총 시스템은, 압축발사력을제공하는압축탱크부; 내부에발사체가구비되고상기압축탱크부의압축발사력에의해상기발사체를발사시키는총열부; 상기발사체의타격에의해압축변형되는시편이장착되는시편장착대가내장된실험탱크부; 및상기시편을소정온도로냉각시키기위한시편냉각부;를포함하여구성되고, 상술한가스총 시스템을이용한충격변형시험방법은, 시편을상온이하의저온으로냉각한상태에서상기가스총 시스템을이용하여상기시편에충격력을가하도록이뤄진다.
    • 本发明涉及一种用于低温试验的气枪系统和使用该气枪系统的冲击变形试验方法,其用于将样品的温度降低到等于或低于试样冲击和变形前的室温的期望温度, 一种气枪系统,用于在将样品冷却到预定温度的状态下使试样振动和变形。 根据本发明的气枪系统包括:提供压缩力的压缩箱单元; 枪筒单元,其中设置有弹丸,并通过压缩箱单元的压缩力射出射弹; 一个实验箱单元,设有样品安装座,其上安装有通过撞击弹而压缩变形的样品; 样品冷却单元,其将样品冷却至预定温度。 使用上述气枪系统的冲击变形试验方法,在将样品冷却至室温以下的低温的状态下,通过使用气枪系统,对试样施加冲击力。
    • 3. 发明授权
    • 3차원 측정기를 이용한 분말 표면 조도의 정량화 방법
    • 使用三维表面轮廓的粉末表面粗糙度的定量分析方法
    • KR101476745B1
    • 2014-12-29
    • KR1020130077719
    • 2013-07-03
    • 포항공과대학교 산학협력단
    • 이동준김형섭윤은유안동현이언식강희수김하늘
    • G01B11/30G01B11/24
    • The present invention relates to a method for scanning a powder surface by using a non-contact three-dimensional profiler and quantitatively evaluating a surface roughness value in view of powder characteristics based on the result. According to the present invention, powder surface roughness can be quantized with simplicity and reliability compared to the qualitative power shape analysis and specific surface area-based quantitative evaluation of the related art. Also, the present invention allows for three surface roughness quantizing methods in view of physical significance, and thus can facilitate the determination of an effect of the powder surface roughness on moldability and molding strength. The present invention includes (a) a step in which powder surface profile information is obtained by using the non-contact three-dimensional profiler; (b) a step in which a reference line is determined by drawing an oval in which the longer one is the long axis and the shorter one is the short axis between the width and height of the powder in view of the powder characteristics of roundness; and (c) a step in which the surface roughness is defined with a deviation with respect to the reference line.
    • 本发明涉及一种通过使用非接触三维轮廓仪扫描粉末表面的方法,并且基于结果定量评估粉末特性方面的表面粗糙度值。 根据本发明,与现有技术的定性功率形状分析和比表面积定量评价相比,粉末表面粗糙度可以简单可靠地量化。 另外,鉴于物理意义,本发明允许三种表面粗糙度量化方法,从而可以有助于确定粉末表面粗糙度对成型性和成型强度的影响。 本发明包括(a)通过使用非接触三维轮廓仪获得粉末表面轮廓信息的步骤; (b)考虑到圆度的粉末特性,通过绘制其中较长的长轴的椭圆和粉末的宽度和高度之间的短轴是短轴来确定参考线的步骤; 和(c)表面粗糙度相对于参考线的偏差来定义的步骤。
    • 4. 发明公开
    • 극저온 시험을 위한 가스 총 시스템 및 이를 이용한 충격 변형 시험방법
    • 用于低温测试的气体总量系统和冲击变形测试方法
    • KR1020160107595A
    • 2016-09-19
    • KR1020150030529
    • 2015-03-04
    • 포항공과대학교 산학협력단
    • 안동현김형섭김우열박이주
    • G01N3/307
    • G01N3/307G01N2203/0044G01N2203/0228
    • 본발명은가스총 시스템을이용하여시편을충격및 변형시키기이전에시편의온도를상온이하의원하는온도로낮출수 있도록하여상기시편이소정온도로냉각된상태에서상기시편을충격및 변형시킬수있는극저온시험을위한가스총 시스템및 이를이용한충격변형시험방법에관한것이다. 이를위한본 발명의가스총 시스템은, 압축발사력을제공하는압축탱크부; 내부에발사체가구비되고상기압축탱크부의압축발사력에의해상기발사체를발사시키는총열부; 상기발사체의타격에의해압축변형되는시편이장착되는시편장착대가내장된실험탱크부; 및상기시편을소정온도로냉각시키기위한시편냉각부;를포함하여구성되고, 상술한가스총 시스템을이용한충격변형시험방법은, 시편을상온이하의저온으로냉각한상태에서상기가스총 시스템을이용하여상기시편에충격력을가하도록이뤄진다.
    • 本发明涉及一种低温测试,其能够在预定温度下冷却样本的同时冲击和变形样本,使得在使用气枪系统撞击并变形样本之前,样本的温度可降低至低于室温的期望温度 并且使用相同的冲击变形测试方法。 为此,本发明的气体枪系统包括:用于提供压缩启动力的压缩罐单元; 内部具有抛射体并通过压缩罐部件的压缩击发力来抛射射弹的总热部件; 一个试验箱部分,它具有试样安装底座,在该试样安装底座上安装由于射弹的冲击而压缩变形的试样; 另外,使用上述的气枪系统的冲击应变试验方法是将试验片冷却至室温以下的低温进行试验的方法, 如图所示。
    • 5. 发明授权
    • 디지털 이미지 해석을 이용한 층상 복합재료의 계면 접합 특성 평가방법
    • 使用数字图像分析估算层状材料界面结合性能的方法
    • KR101328475B1
    • 2013-11-13
    • KR1020120054103
    • 2012-05-22
    • 포항공과대학교 산학협력단
    • 이동준주수현윤은유김형섭안동현
    • G01N3/08G01L1/00G01B11/16
    • G01N3/08G01B11/16G01N1/32G01N33/20G01N2203/0075G01N2203/0298
    • The present invention relates to a method for evaluating bonding properties of a multi-layered metal plate using a digital image interpretation technique and, more particularly, to a method for evaluating interface bonding properties in a tension test which is a method for evaluating mechanical properties of a general metal specimen and is simpler than the conventional methods for evaluating interface bonding properties. In addition, through digital image analysis, the existence of interface bonding can be determined by analyzing the distance between layers, a local deformation rate, etc. The analysis on a bonding property can become easy through the relationship with a transformation rate-stress curve, which is a general property of a material and is obtained from a tension test. A method for analyzing interface bonding properties prepared by the present invention comprises the following steps of: (a) realizing a random pattern on a side of a specimen; (b) obtaining an image of the side of the specimen through an in-situ or an ex-situ test simultaneously with a tension test; (c) observing interface properties through digital image interpretation.
    • 本发明涉及一种使用数字图像解释技术评价多层金属板的接合性能的方法,更具体地,涉及用于评价作为评价机械性能的方法的拉伸试验中的界面粘合性能的方法 一般的金属样品,并且比用于评价界面粘合性能的常规方法简单。 此外,通过数字图像分析,可以通过分析层之间的距离,局部变形率等来确定界面粘合的存在。通过与转变速率 - 应力曲线的关系,可以使粘合性能的分析变得容易, 这是材料的一般属性,并且是从张力测试获得的。 用于分析本发明制备的界面粘合性质的方法包括以下步骤:(a)实现样品一侧的随机图案; (b)通过拉伸试验同时通过原位或非原位试验获得样品侧面的图像; (c)通过数字图像解释观察界面属性。
    • 7. 发明授权
    • 금속재료의 강도증가장치 및 강도증가방법
    • 改善金属材料强度的装置和方法
    • KR101593836B1
    • 2016-02-12
    • KR1020140151370
    • 2014-11-03
    • 포항공과대학교 산학협력단
    • 이동준안동현김형섭김준원
    • C21D1/04C22F3/02
    • C21D1/00C22F3/02
    • 본발명은금속재료를압축시킴과동시에비틀리게하면서초음파진동을가하여더욱강도가향상된금속재료를제조할수 있도록하는상기기술적과제를해결하기위한본 발명의금속재료의강도증가장치및 강도증가방법에관한것이다. 이를위한본 발명의상기기술적과제를해결하기위한본 발명의금속재료의강도증가장치는, 서로마주하는부분에금속재료가배치되도록구성된한 쌍의재료안치부; 상기한 쌍의재료안치부중 적어도어느하나에내장된초음파발생부; 상기금속재료가압축되도록상기한 쌍의재료안치부사이의간격을조절하는재료압축부; 및상기한 쌍의재료안치부가서로상대회전되도록상기한 쌍의재료안치부중 적어도어느하나를회전시키는회전구동부;를포함하여구성되며, 상기재료압축부에의한상기금속재료의압축과상기회전구동부에의한상기금속재료의비틀림이동시에이뤄지도록하면서상기초음파발생부를통해상기금속재료에초음파진동을가하여상기금속재료의강도를증가시키도록구성된다.
    • 本发明的目的是提供一种提高金属材料的强度的装置和方法,所述金属材料的强度可以通过在压缩和扭曲金属材料的同时施加超声波振动来提高其强度。 为了实现该目的,用于提高金属材料的强度的装置包括:一对材料座单元,用于在金属材料的彼此面对的部分上布置金属材料; 嵌入在所述材料座位单元中的至少一个中的超声波发生单元; 材料压缩单元,用于调节所述材料座位单元之间的间隙以压缩所述金属材料; 以及旋转驱动单元,用于旋转所述材料座位单元中的至少一个,以相对于彼此旋转所述材料座单元。 当金属材料被材料压缩单元压缩并同时被旋转驱动单元扭转时,通过超声波产生单元对金属材料施加超声波振动,以提高金属材料的强度。