Goerg and Schneider, a producer of crude clays, milling clays, chamottes and ceramic masses, has selected the Fritsch Pulverisette 6 planetary mono mill for efficient sample preparation.
The main area of utilisation of the Pulverisette 6 is the fine grinding of milling clays, respectively pre-broken pieces of firing clays.
The size of the basic sample is between 0.2-0.5mm.
The finely ground chamottes are needed in order to produce - by adding bentonite as a bonding clay - models for the determination of the thermal expansion coefficient.
Furthermore, in this manner the obtained sample amount of approximately 100g is used for the disintegration of the fusion tablet during the X-ray fluorescence analysis in order to determine the chemical composition of the finished product.
The decision in regards of the selection of the comminution tools is mainly based on the chemical composition as well as in the physical and mechanical characteristics of agate.
Due to the considered relative chemical neutrality of the composition (99.9 per cent SiO2), no other elements from the agate, respectively from the preparation, influence at all, or only in a limited manner, the material characteristics.
The Mohs hardness of the agate, 6.5-7, is sufficient for fulfilling the demanded tasks in a qualitative manner of a 100 per cent.
