| 摘要 |
A plant for conductive electrical heating of elongated electrically conductive objects, e.g., steel blanks for further treatment in a roll mill. Said plant comprises a combination of the following features: at least two blanks (1) are provided in parallel and spaced from each other, and are connected with at least one current supply (2) by the aid of transmission contacts (3, 4), which are provided so as to be urged towards the ends (1a, 1b) of blanks (1). Blanks (1) with associated transmission contacts (3, 4) are provided in a heat insulated chamber (5), in which blank (1) and chamber (5) together constitute an electrical furnace, in which blanks (1) constitute the heating elements of the furnace. A conveyor or manipulator (7) is provided for insertion, and removal, respectively of blanks (1) in transmission contacts (3, 4) in chamber (5) through an opening (9) in the surrounding chamber wall in any order chosen.
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