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The meaning of the powder mixer and the quality test of the mixture

DATE:2016-09-19

A powder mixer is a machine that stirs two or more substances in a dry state or a small amount of liquid. The two substances may be different or different properties of the same substance. However, it has been difficult to solve the mixed quality assessment problem. This article introduces this issue.

Powder mixing is a relatively complicated process, so it is difficult to make a concrete judgment on the quality of its mixing. At first, people judged the quality of the mixture only through the senses and experience. With the development of the times, people are more and more aware that the quality of the mixture needs a more scientific method to judge. This method is called quantitative analysis. To use this method, the main processes are sampling, testing, and statistical analysis. The following are introduced one by one:

First, sampling

Sampling is the removal of a small amount of sample from a material that has already been mixed. These small samples can also be called "point samples". The location at which this sample is taken is called the "sampling point." In the case where the container and the time level are the same, the samples taken at different sampling points are called "samples".

The size of the sample is as small as possible to meet the detection needs. If the sample is too large, it will waste material, and it may affect the test results. The number of samples should also be controlled within a certain range. The more the number of samples, the more accurate the results of the test, but the excessive number of samples will increase the workload of the test.

The selection of the sampling point position should be carried out while the material is at rest. When taking multiple samples, it should be taken at different locations of the material. Sampling of the mixture under flow conditions is more accurate than sampling at full rest, so if available, you can choose to sample in the flowing material.

Second, testing

After the material has been sampled, the sample is tested, and chemical or physical methods can generally be used. When testing, be sure to classify the samples and do not mix them. There are many general detection methods, and how to choose depends on the nature of the materials, the purpose of mixing, and the actual conditions.

Third, statistical analysis

Based on the results of the test, some expertise is used to assess the quality of the mix of materials.

The above is about the quality inspection of the powder mixer mixture, can you help? If you have any need for the powder mixer, please click on the official website to learn more!

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