ЗАПОБІГАННЯ ПЕРЕДЧАСНОГО ПОЖЕЖОВИБУХОНЕБЕЗПЕЧНОГО СПРАЦЬОВУВАННЯ ПІРОТЕХНІЧНИХ СУМІШЕЙ В УМОВАХ ПОСТРІЛУ ТА ПОЛЬОТУ

Abstract

The regularities of the effect of external thermal shock effects of supersonic blowing with an air stream on metal hemispherical shells of charges of nitrate-metallized mixtures with additives of organic and inorganic substances, which are used to equip pyrotechnic products (pyrotechnic IR emitters, elements of rocket and space technology, etc.) have been established. Temperature distributions along the outer and inner shells and along their thickness were studied. The critical values of air blowing speeds and times of its thermal shock effect were determined, exceeding which leads to premature ignition of mixture charges, a sharp acceleration of their combustion under the shells and, ultimately, to fire-explosive destruction of the products.