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    • 2. 发明公开
    • VERFAHREN ZUR HARTMETALLKÖRPER-CHARAKTERISIERUNG
    • VERFAHREN ZURHARTMETALLKÖRPER-CHARAKTERISIERUNG
    • EP3077337A1
    • 2016-10-12
    • EP14828435.9
    • 2014-12-01
    • Ceratizit Austria Gesellschaft m.b.H.
    • FINK, PeterGLÄTZLE, JohannesKÖSTERS, RolfUSELDINGER, Ralph
    • C01B31/34C22C29/08G01N27/80G01R33/12
    • G01R33/12C01B32/949C22C29/00C22C29/08G01N27/80
    • A method for hard metal body characterization is provided comprising the steps: (S1) positioning a micromagnetic measuring head (6) on a hard metal body (20) to be characterized, wherein the measuring head (6) has at least: an exciter unit (8) with an exciter magnet (81) and a low frequency generator (82) for generating a low-frequency magnetic excitation alternating field; an excitation magnetic field sensor (7) for detecting the magnetic alternating field that has been generated; and an induction sensor (9) with a coil arrangement; (S2) application of a low-frequency magnetic alternating field using the excitation unit (8) and detection of the signals from the excitation magnetic field sensor (7) and the induction sensor (9); and (S3) evaluation and (S4) assignment of the detected signals to one hard metal class, which is characterized at least by a binder content range and a particle size range of the hard material particles, of a plurality of hard metal classes (HM1, HM2, HM3).
    • 提供了一种用于硬金属体表征的方法,包括以下步骤:(S1)将微磁测量头(6)定位在要表征的硬金属体(20)上,其中测量头(6)至少具有:激励器单元 (8),具有用于产生低频磁激励交变场的激励器磁体(81)和低频发生器(82); 用于检测已经产生的磁交变场的激励磁场传感器(7); 和具有线圈装置的感应传感器(9); (S2)使用激励单元(8)施加低频磁场交变场并检测来自激磁磁场传感器(7)和感应传感器(9)的信号; 和(S3)评估和(S4)将检测到的信号分配给一个硬金属类,其特征在于至少由多种硬金属类别(HM1)的硬质材料颗粒的粘合剂含量范围和粒度范围 ,HM2,HM3)。