B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
153/17
B21D 19/00 (2006.01) B21D 39/06 (2006.01) F28F 9/16 (2006.01)
Patent
CA 1213205
APPARATUS FOR FORMING AN EXPLOSIVELY EXPANDED TUBE-TUBE SHEET JOINT INCLUDING A LOW ENERGY TRANSFER CORD AND BOOSTER ABSTRACT OF THE DISCLOSURE , Apparatus for expanding a tube into a bore formed in tube sheet in which a primary explosive containing a relatively high number of grains of explosive per unit length extends within the tube coex- tensive with that portion of the tube to be expanded. An energy transfer cord extends between a detonator and the primary explosive and includes a relatively low number of grains of explosive per unit length which are insufficient to detonate the primary explo- sive but which be covered by a sheath to contain the debris and gases associated with the explosion of the latter explosive. A booster extends between the energy transfer cord and the primary explosive and contains an explosive which is detonatable by the energy transfer cord and, upon exploding, detonates the primary explosive.
441484
Foster Wheeler Energy Corporation
Meredith & Finlayson
LandOfFree
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