Abstract
The method of ultrasonic dispersion was adopted to prepare reactive materials of Al-MnO2 flame jet thermite with different components, which was aimed at experimental research about factors on the melt-through effects of Al-MnO2 flame jet thermite. Based on the single factor experiment, the disposal experiment of the steel plates with 3mm thickness had been carried out. According to the phenomena of experiments, there were many advantages with the form of powder cylindrical charge such as better ignition performance, faster burning rate and firmer combustion process. The charge with the 40um particle size of Al powder and 30-40um particle size of MnO2 had the best melt-through ability which could penetrate the steel plates with ranging from 1.5cm to 3cm aperture by contrasting and analyzing melt-through effects and molten zones. By contrasting and analyzing melt-through effects and molten zones, it was significant to analyze the accounts for the better performances, with the purpose of providing references for the selections of formula in the future experiments and applications.
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