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Chengdu Shandong laser particle sizer micro nano particle instrument high efficiency features

because the density of titanium alloy is much smaller than that of steel, Chengdu Shandong laser particle sizer micro nano particle instrument high efficiency features

source network release time: 00:50:09 this classification information is released by users

the agglomeration condition is still very serious. From the experimental results, we can find that, Using wet dispersion to disperse and test magnetic materials cannot agglomerate them together. At present, no unit can provide solvents or dispersants for dispersing magnetic materials (including ferroboron, hard ferrite, etc.), so dry dispersion can be considered for particle size detection, Jinan Weina impact testing machine has developed the first laser particle sizer in China by combining the patented dry dispersion technology with the laser system for the first time. This achievement has been hailed as a milestone innovation by the powder engineering industry and won the "third prize for scientific and technological progress in Shandong Province". Since then, a new change has taken place in the field of laser particle sizer, This means that the vast majority of dry powder of powder materials can be directly collected from Chengdu Shandong laser particle sizer and tested by dry dispersion. It does not need to spend a lot of time and energy to find suitable solvents and dispersants in order to test particle size. In conclusion, the dry laser particle sizer developed by Jinan Weina company (-) can completely and effectively disperse magnetic materials Thus, the original particle size and particle size distribution of magnetic materials can be obtained, and the real-time dry sampling, dispersion and particle size testing system can be achieved

fully automated particle size monitoring and process control for the industrial production of magnetic materials. The UK is the 'birthplace' of graphene. On the one hand, errors in the sampling process are avoided, on the other hand, the safety of the production process is more guaranteed. On the other hand, the fragile packaging of laser particle size analyzers constitutes the high cost of products. The particle size distribution is analyzed by measuring the diffraction (scattering spectrum) of particle groups, Therefore, the inversion of the scattering spectrum is of great significance, which directly affects the output results. The usual inversion method first assumes that the particles obey a certain distribution function, so the analysis results must obey this function subject to this prerequisite. If the particle group itself does not obey this distribution, the test results will be distorted. Unconstrained fitting is a special inversion algorithm, which does not need the restriction of any function, Therefore, the analysis results completely depend on the distribution of scattering spectrum

maximize the fitting accuracy and ensure the authenticity and reliability of the calculated results, JL portable laser particle sizer and winner desktop laser particle sizer, the products of Jinan Weina particle company, are the first models to apply this technology and achieve success: (in addition, some models adopt "free mode "But as a supplementary method, it has no practical value. It has found the phenomenon of over grinding in the cement test. It has found the particle size distribution of the mixture of two different grinding methods in the stone mill sample test. It can be said that unconstrained fitting is of special significance to the research work. How to judge whether an instrument is an unconstrained fitting method? There is a simple method: first use a standard sample to test in the instrument, and then use another standard Add Shandong nano particle size to the quasi sample drop by drop to detect the particle size of the former sample. With the increase of the amount added, the other peak value also increases. Note that the median size of the two samples should be significantly different. If the above effect is observed, it is an unconstrained fitting inversion algorithm. If the Fujian laser particle size analyzer manufacturer has measured the particle size distribution curve, it is shown in the figure: no matter how to increase the sample

if the particle size distribution is unimodal, it can be considered that this instrument uses ordinary inversion software. Conclusion: the unconstrained fitting inversion technology has the ability to automatically distinguish multimodal particle groups and is a good assistant for particle analysis. The ordinary inversion software is only suitable for the test of single component samples. Only the unconstrained fitting software is suitable for the analysis of multimodal distribution samples. Learn to distinguish whether the unconstrained fitting software, In order to prevent being cheated and ensure the stability of the laser particle sizer test, this manual comparison method has the following problems for the actual operation: Subjective factor error of personnel: the sensory impression of testers on particle samples cannot be exactly the same, so the numerical standards obtained are different. Different testers may obtain completely different test results No clear basis for judgment: there is no very clear basis for judgment and calculation method for personnel judgment, and they can only rely on general feeling

this also increases the instability and difference of the test Heavy workload of personnel: the previous method is to randomly take samples of particles for testing, and the number of samples is not enough to obtain representative data. However, if you want to obtain more roundness and sphericity data of particles, it will greatly enhance the workload of testers. Jinan micro nano technology Co., Ltd. launched an algorithm module for automatic analysis of roundness and sphericity of particles, combined with dynamic or static imagers, It is easy to obtain stable and reliable sphericity and roundness data of proppant. In the above introduction, it can be seen that the sphericity algorithm has a relatively general formula expression, which can be calculated directly by using the relevant technology in computer graphics. The difficulty is that there is no universally recognized calculation formula for roundness calculation, so this module is not a general formula calculation, but a real analysis of the particle contour;, Technical introduction

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