| 摘要 |
<p>A system for impact welding by magnetic propulsion for butt welding of substantially flat plates comprises at least one ballistic work piece member in the form of a substantially straight bar aligned with a stationary work piece to be welded and a driving coil disposed adjacent the at least one ballistic work piece member and connectable to a power source such that upon actuation of the power source, magnetic repulsion forces in the driving coil drive said ballisticwork piece member to collide with the stationary work piece member at welding velocity. A system for impact welding by magnetic propulsion for pipe welding comprises a ballistic work piece member configured substantially in the form of a ring disposed about a work piece to be welded and a driving coil configured substantially in the form of a ring disposed adjacent the ballistic work piece member, the driving coil being connectable to a power source. A system for impact welding by magnetic propulsion for use with heat exchanger tubes and tube sheets to be welded together comprises a ballistic work piece member disposed between pairs of heat exchanger tubes and heat exchanger tube sheets and a driving coil disposed adjacent the ballistic work piece member being aligned at a chamfered intersection between the heat exchanger tube and the heat exchanger tube sheet such that the driving coil thrusts the ballistic work piece member at welding velocity into the chamfered intersection upon actuation of the power source. A system for impact welding by magnetic propulsion for lap welding of pipes and for cylindrical cladding comprises a ballistic work piece member comprising a section of pipe capable of accommodating therein a section of pipe to be welded and a driving coil disposed adjacent the ballistic work piece member, the driving coil means comprising a solenoid member being connectable to a power source. A system for impact welding by magnetic propulsion for plane cladding comprises a ballistic work piece member in the form of a flyer plate member disposed adjacent a parent plate member to be joined thereto and a driving coil disposed adjacent the flyer plate member and connectable to a power source such that upon actuation of the power source, the driving coil thrusts the flyer plate member at welding velocity against the parent plate member. A method for impact welding by magnetic propulsion comprises the steps of (1) providing a ballistic work piece for colliding with a stationary work piece to be welded at welding velocity, and (2) providing a driving coil connectable to a power source positioned such that upon actuation of the power source, the driving coil thrusts the ballistic work piece at welding velocity to collide with the stationary work piece.</p> |
