HEIZVORRICHTUNG FUER EINE SCHWEISSVORRICHTUNG.

摘要

PCT No. PCT/DE90/00229 Sec. 371 Date Dec. 7, 1990 Sec. 102(e) Date Dec. 7, 1990 PCT Filed Mar. 22, 1990 PCT Pub. No. WO90/11885 PCT Pub. Date Oct. 18, 1990.A heating device for a welding jig having two guide arms for welding together plastic pipe comprises two semi-circular electrical heating plates joined at one end by a pivotal or adjustable connection. Both ends of the heating plates have recesses for receiving the two guide arms when the heating device is in its closed position, enclosing the plastic pipes to be welded. The non-pivotally or non-adjustably connected ends of the heating plates are held together by a quick-release closure, such as a toggle catch, when the heating device is in its closed position.