| 摘要 |
A method and an equipment for heating glass in a tempering furnace provided with rollers. In a tempering furnace glass (3) is heated from above with upper resistors (4) and from below with lower resistors (5). The heating resistors (4, 5) are dimensioned such that their combined power is greater than the maximum heating power needed by the furnace, and that the resistors are controlled such that the maximum amount of resistor power being used simultaneously corresponds to the maximum heating power needed by the furnace. This allows heat to be directed at a desired place in the furnace also at the initial stage of heating, and a single resistor is efficient and fast, allowing heat to be directed quickly at places where it is needed.
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