ABSTRACT: We conducted a small-scale experiment on soil simulating underwater blasting and studied the shape of waves as well as properties of electrical noises generated during blasting. From these noise waves, we wanted to detect any failure in initiation of the charge or blasting conditions, etc. It was observed that the main source of noise …
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Month:May 2007
Study on the Reaction Mechanism of Black Powder And Its Applications Ballistics of Firework Shells
ABSTRACT: Black Powder is said to be the oldest explosive. At present, it is one of the most important explosives. However, the burning reaction mechanism of materials in the mixture is still obscure. The purpose of this study is to clarify this mechanism and illustrate some applications of Black Powder. The burning reaction of Black …
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Some Techniques for Manufacturing Fireworks (1) Dark Delay Compositions, (2) The Use of Metal Powders
Introduction: In recent years I have studied the oxidation and reduction taking place between various substances in a mixture. I reported on some of these studies in a paper titled “A Concept of Negative Explosives” presented in 1986 at the Eleventh International Pyrotechnics Seminar[1] in Vail, Colorado, USA. In the present paper, I will be …
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Research on the Most Appropriate Method for the Pyrotechnic Industry To Determine the Sensitivity of Compositions
SUMMARY: Those of us who work in the pyrotechnic industry have three requirements to obtain data concerning the sensitivity of mixtures: 1) establish the starting point of no-ignition 2) understand the possibility of propagation of the ignition to combustion or explosion 3) clarify the variation of the sensitivity, which is dependent on the materials that …
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The Critical Burning of Pyrotechnic Compositions
Introduction: The author attempts to establish a general theory summarizing the phenomena related to the chemical reactions occurring inside pyrotechnic compositions. There are three types of reactions: smoldering, burning and detonation. In addition, there are several interesting variations like sparking, flashing [strobing] and pyrotechnic whistling. These phenomena fall between smoldering and burning or between burning …
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TEST POST
“Mortar” meeting
Following the successful meeting at Derby last year and as promised, EIG and BPA have arranged a day’s seminar on all aspects regarding the use of mortars and mortar racking systems in professionally fired firework displays. The meeting will be held at Centrepoint, London on 3rd July 2007 and to which you are invited. The …
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