Recorded result
- D50
- 3.2 µm
- D90
- 7.29 µm
Particle sizes for the recorded sample and sampling time.
Sample assessment
The incoming carbon was recorded as granules and processed as a small 20 g dry charge. Its objective specifies D90 rather than a mesh limit or an unqualified size. The tested PTFE jar and zirconia balls should remain part of the assessment because a generic carbon recipe would omit those contact conditions.
Recorded objective
D90 between 6 and 9 µm.
Equipment and selection
The source identifies QXQM family. The related TENCAN product association is Omnidirectional Planetary Ball Mill. This identifies the recorded equipment family, rather than an independently verified serial-number configuration. Jar contact materials and charge details below are test observations; an unspecified steel grade or ball-percentage basis is not supplied by the association.
Test setup
| Recorded setup | QXQM planetary family, described as horizontal planetary operation; PTFE jar and zirconia balls, standard charge; 20 g granular carbon; setting 500; run/pause cycle recorded as 5:1; interval units unspecified. |
|---|---|
| Speed notation | Values are retained as recorded speed settings. The source does not identify the revolution/rotation reference; no separate jar speed is inferred. |
Recorded procedure and results
The carbon powder was dry milled using the horizontal planetary arrangement described in the note. At setting 500, a sample was taken after 30 minutes. The measured distribution was D50 = 3.2 µm and D90 = 7.29 µm. The procedure describes the result as satisfactory. The source duration field gives 30 minutes. There is no initial distribution, additional timepoint or later adverse observation in this entry.
Interpretation
The recorded D90 falls inside the stated 6–9 µm interval, providing a direct match between objective and measured statistic. D50 = 3.2 µm describes the median separately; it is not the acceptance quantity used in this case. The favorable assessment is consistent with the measured D90, but no starting distribution is available to calculate a reduction ratio. The horizontal wording does not independently identify a WXQM model, so the association follows the source QXQM family. No electrical, surface-area or contamination measurements were provided.
Practical precautions
Identify the actual planetary configuration before reproducing the route, and record ball mass as well as the standard-charge notation. Keep the same dispersion and sampling procedure when checking the D90 interval. Review steel contact against the carbon application and record recovered powder, especially if wall deposits appear during a longer run.
TENCAN alternatives to evaluate
TENCAN Compact Horizontal Planetary Ball Mill: Evaluate a WXQM compact horizontal model only after confirming the actual orientation used in this QXQM record. Keep the PTFE/zirconia contact system and small charge comparable, and judge the repeat against the stated D90 interval rather than median size. This is a recommendation for a new comparison, not an observed result of this trial.
Endpoint context: D50 = 3.2 µm; D90 = 7.29 µm after 30 minutes.
Tested equipment association only: QXQM family; exact machine variant not inferred. Alternative products are evaluation candidates in the body only.
About this trial
TENCAN laboratory trial, 2021. Observations above come from this experimental record; selection considerations and proposed comparisons are engineering interpretation. Results apply to this sample and recorded conditions.