How to solve the problem of air bubbles in the sample mounted by the TNM 40AX metallographic mounting machine?
The presence of bubbles in samples mounted with the TNM-40AX metallographic mounting machine may be due to uneven mixing of the mounting material.
When preparing the mounting material, it is necessary to strictly follow the proportions for mixing and stir thoroughly and evenly to ensure there are no clumps.
A heating process that is too fast during the heating stage may also lead to the generation of bubbles; a slow heating method should be adopted to allow sufficient time for the gases in the mounting material to escape.
In addition, if the inner wall of the mold is not smooth or contains impurities, it will cause gas retention; the inner wall of the mold must be cleaned and its smoothness guaranteed.
Kunshan Fuze Testing Equipment Co., Ltd. can provide operation training for the TNM-40AX metallographic mounting machine to help users master correct mounting methods and reduce the occurrence of bubbles.