Method of explosive bonding, composition therefor and product thereof
AssigneeSigmabond Technologies Corporation
InventorRoy Hardwick
Life of this patent
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Abstract
An improved method of explosively bonding a first metal to a second metal with an explosive composition comprising a base explosive in admixture with an inert particulate material, the improvement wherein the diluent comprises an inert material having a mean particle size selected from 0.05 mm to 0.1 mm, a hardness value of not less than 4 mohs, and a plurality of faces and edges. The explosive composition allows for a sustainable detonation value of less than 1800 m/s, preferably less than 1200 m/s to reduce or prevent the formation of interface waves.
Claims3
An explosive composition comprising a base explosive selected from amatol and ANFO in admixture with an inert particulate diluent present in an amount of at least 40% w/w consisting primarily of 35-45% silica, 35-45% calcium oxide and 10-15% aluminum oxide, wherein said silica has a mean particle size selected from 0.05 mm to 0.1 mm, a hardness value of not less than 4 mohs and a plurality of faces and sharp edges.
Dependencies are inferred from the claim text.