Signal transmission tubing with low incendivity for use in methane/air environments

Autor: G. F. Brent, A. H. Noble, D. P. Sutton
Rok vydání: 1993
Předmět:
Zdroj: Journal of Energetic Materials. 11:245-260
ISSN: 1545-8822
0737-0652
DOI: 10.1080/07370659308019711
Popis: Signal transmission tubing has become the major initiation system for blasting operations in many countries. Conventional tubing based on Al/HMX has been found to be highly incendive in methane/air mixtures. Results for this and other compositions are presented, and the major mechanisms of methane ignition are discussed. Techniques for the formulation of non-incendive explosive compositions are utilised, resulting in signal tube compositions with very low incendivity. Important principles identified are the removal of hot solid reaction products, attainment of oxygen balance and the inclusion of flame inhibiting compounds such as alkali metal salts. These are incorporated in the preferred composition based on HMX/KCIO4. Ideal detonation analyses and flame studies by high speed photography are consistent with the principles of formulation for low incendivity.
Databáze: OpenAIRE