发明名称 |
MEASURING METHOD AND MEASURING DEVICE FOR APPARENT DENSITY OF METALLIC POWDER, PRODUCTION METHOD AND PRODUCTION DEVICE FOR MIXED POWDER, AND PRODUCTION METHOD AND PRODUCTION DEVICE FOR POWDER COMPACT |
摘要 |
<p>A method for measuring an apparent density of a metal powder includes holding a metal powder in a vessel, applying an alternating magnetic flux to the metal powder using an exciting coil disposed outside the vessel, detecting the alternating magnetic flux passed through the metal powder using a search coil disposed outside the vessel, and determining an apparent density of the metal powder from an amplitude of the detected alternating magnetic flux using a calibration curve representing a correlation between the apparent density of the metal powder and the amplitude of an alternating magnetic flux prepared in advance. The method enables to measure the apparent density of a metal powder with a high precision in an on-line and non-contact manner without stopping a process of producing a mixed powder or a process of producing a powder compact.</p> |
申请公布号 |
EP2772754(A4) |
申请公布日期 |
2015.01.07 |
申请号 |
EP20120842781 |
申请日期 |
2012.05.16 |
申请人 |
JFE STEEL CORPORATION |
发明人 |
MAETANI, TOSHIO;KATO, HIROHARU |
分类号 |
G01N27/72;B22F1/00;B22F3/02;B22F3/035;B30B11/00;G01N9/00;G01N15/06 |
主分类号 |
G01N27/72 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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