| 摘要 |
A dual pressure welding machine employing a magnetic connection to secure a first and higher pressure to cold flow or mechanically separate the insulation from a wire to be welded from the interfaces between an electrode, the wire and a terminal to which the wire is to be welded. When the magnetic connection is broken a second and lower welding pressure is applied from the electrode to the wire and terminal by means of a spring which may be a constant-force spring applying the same pressure regardless of its extended length or which may be an extension spring whose pressure increases with its extended length so that the welding pressure may be adjusted. The machine includes a pair of carriages connected together by the magnetic connection and the spring, with one carriage carrying the electrodes and the other moveable by either a pneumatic or manual operator.
|
