A method for determining the fisher particle size of refractory metal powders with a managed test loop
By using the same material sample for instrument status verification and omitting the degassing step, the Fisher particle size determination method solves the problems of instrument drift and low efficiency in the determination of refractory metal powders, and achieves efficient and accurate particle size determination.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- JINDUICHENG MOLYBDENUM CO LTD
- Filing Date
- 2026-06-04
- Publication Date
- 2026-07-17
AI Technical Summary
Existing Fisher particle size determination methods lack an instrument condition verification mechanism consistent with the characteristics of the powder being tested in the determination of refractory metal powders, which leads to the measurement results deviating from the true value, and the degassing step takes too long and is inefficient.
Routine verification is performed using management samples of the same material and with high stability. A Fisher particle size determination process without degassing is established. By comparing the measured values of the management samples with the standard values, instrument drift can be detected in a timely manner. The degassing step is omitted in the preset test procedure to improve efficiency.
It enables real-time monitoring of instrument status and accuracy of measurement results, shortens measurement time, improves detection efficiency, and ensures batch consistency and accuracy.
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