In essence, the quartz-like ore (silicon dioxide SiO2) belongs to the semi-precious stone category.
It is formed by the deposition of silica solution into volcanic caverns. The English name Agate is derived from the name of the river "Achates" (today's "Drillo") in Sicily, where the agate was first discovered.
Today it is produced in Bohemia, Brazil, Sicily and Uruguay. It was not until the beginning of the last century that agate was first used as a process material, and soon pharmacists realized that agate mortar had good crushing performance and was wear-resistant.
At the same time, the surface of the agate material is very smooth, frictional effect, avoiding sample residue, will not cause cross-contamination, than the brass or hard porcelain mortar is better.
The processing technology of modern agate material is improving day by day due to the application of diamond tools, and the hard porcelain material has gradually lost its prominent position as the main crushing tool. As mentioned above, agate is actually silica ore, because of its pollution-free sample, so in food, biology, medicine and other fields as a grinding tool has a wide range of applications.
Other applications include the detection of heavy metals, the development of dyes (metal materials can cause color changes when rubbed) and the preparation of paste samples and medicinal ointments.
If the powder wants to enter the ultra-fine such as 3000 mesh, it is not recommended to use agate, the main reason is that the agate itself has a high finish, the friction is reduced and the density of the agate ball itself is too low, and the impact force between the powder is not enough, resulting in the powder can not be broken, agate is mainly used in soil, materials with low hardness.
Agate tank is not recommended for use in ultra-low temperature environment, such as directly pouring liquid nitrogen into the agate tank may lead to increased internal stress and crack.
Hardness of agate tank (Mohs hardness): 6.5-7, density: 2.65g /cm3, hardness (Vickers hardness): About 1000 HV, agate is mainly composed of 99.9% silicon dioxide (quartz), and the remaining elements are Na-, Fe-, K-, Mn-, Mg- and Ca oxides according to the origin.
There are many kinds of carrier ball mill jars in the planetary ball mill, reaching more than ten kinds. But as a natural class only one kind of agate, agate as a natural production product, the biggest feature is no pollution, in medicine and biology, high purity lithium battery material development, silicate material powder crushing, soil sample grinding agate tanks have become the only choice.
With other materials irreplaceable factors, the largest use group of agate tank is biopharmaceutical and soil sample sampling, in some industries clear testing standards must use this material tank grinding samples, it can be imagined that the characteristics of high purity agate and non-polluting by the domestic and international standard sample production of a great deal of attention, in such a special material.
Agate ball mill tank in the planetary ball mill grinding has the following characteristics: high purity and no pollution; Almost no thermal effect, the sample will not harden; Very low power output.
The huge market demand has also led to another event, that is, the shortage of agate raw materials, a natural agate needs hundreds of thousands of years or even longer, and with the serious mining of agate, some of the original site countries such as Brazil and Bohemia have banned mining, so the cost of a good agate tank in China will be higher and higher.
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