| 摘要 |
PROBLEM TO BE SOLVED: To join electric wires powder-metallurgically and strongly by explosive by covering the outside of 2 electric wires of which ends are closely connected by a metal tube, and filling metal powder of the same quality as the wire in it and by exploding from the outside of the metal tube centripetally. SOLUTION: The ends of two electric wires 1 consisted of a stranded wire of aluminum and copper are closely connected, and the outside is covered with a metal tube 3 which is made of the same quality as the wire 1 and slightly larger in circumference. Then, metal powder 2 of the same quality as the wire 1 of about 1μm-1mm is filled in a space between the metal tube 3 and outside of the wire 1 and between individual stranded wires of the wire 1. A protective layer 5 such as a plastic film is set outside of the metal tube 3 and explosive 4 with explosion speed of about 4000-1900m/sec is placed outside through a case 6. Then, the explosive 4 is fired through a detonator and a fuse and a centripetal impact pressure is loaded from the outside of the metal tube 3. This action presses and heats metal powder 2 and joins the electric wire 1, metal powder 2, and the metal tube 3 integrally and metallurgically.
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