Sampling Video
Knowledge Base
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Typically, most of the samples can be pulverized by a grinder during an experiment. However, there are also some samples that cannot be processed by using normal grinding method. In this case, we need to use grinding aids to facilitate size reduction process. Grinding aids are commonly used in Ball Mills, Vibratory Disc Mill, and Mortar Grinder. It should be noted that, before adding grinding aid, make sure that the grinding aid will not have an ...
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In food testing laboratories, due to the different nature of the test project, the acquisition and selection of instruments are different. Food inspection can be divided into two major items, one is to test the quality of the product project; the second is to test the health degree of the product project. The detection of this type of project is relatively difficult and of high investment. Quality items include: moisture, salt c...
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Centrifuge tubes commonly used in laboratories include plastic and glass, and plastic is generally used more often. Plastic centrifuge tubes are made of PP (polypropylene), PC (polycarbonate), PE (polyethylene), etc. The performance of PP tubes is relatively good. Plastic centrifuge tubes are transparent or semi-transparent, so you can visualize the sample centrifugation, but they are easier to deform and less resistant to the corrosive pr...
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The accuracy of the sample pre-treatment is also related to the accuracy of the subsequent analysis. Size reduction is a key step in sample pretreatment. To choose a suitable grinding instrument, we need to consider the experiment and choose a suitable grinding instrument: Sample type - Is the sample hard or soft? There is simple way to judge: if the sample can be cut with scissors, we can classify it as a soft sample; if the sample need t...
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Influencing factors Mechanical alloying is a complex process, and therefore a series of influencing parameters need to be optimally designed in order to obtain desired phase and microstructure. Some factors that have a significant impact on the results of mechanical alloying are listed below. 1). Grinding device The grinding devices for producing mechanically alloyed powders are various, such as: planetary mills, vibratory mills, stirred m...