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    • 2. 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。