摘要 |
The exothermic instrument for firing an explosive comprises a circuit board 1 having a heat resist layer 6 on a substrate 11 and an exothermic resistance 4, which connects to a pair of through hole conductive electrodes 13 passing through the substrate 11, contacting with the explosive 19 on the heat resist layer 6, a pair of electrode pins 8, each one thereof is inserted into each one of the through hole conductive electrodes, and an insulator for holding the circuit board 1 through which the electrode pins 8 pass. <IMAGE> |
申请人 |
NIKKO CO., MATTO;NICHIYU GIKEN KOGYO CO., LTD. |
发明人 |
MIZUSHIMA, KIYOSHI;MOURI, MAMORU;MIYAKOSHI, MOTOHARU;NAKAMURA, SATOSHI;SATO, HIROSHI;TSUJI, SHINZO;WATANABE, MASASHI;ARAI, EIJI |