| 摘要 |
<p>The invention relates to a method of driving a glass tempering system and to a glass tempering system for carrying out the method. The main components of said system are a loading section (1), a heating furnace (2), a quench and cooling section (3) and an unloading section (4). The sections are provided with conveyors, which are made of horizontal rollers and can be driven in unison or separately. The furnace and quench and cooling section conveyors (12, 13) are provided with a common drive mechanism (5, 6, 7, 8) for driving said conveyors (12, 13) either at the same rate of speed or for uncoupling said conveyors from each other for stopping the quench and cooling section conveyor (13). Instead of stopping it, the quench and cooling section conveyor (13) can be coupled to effect a very slow movement after the quenching is finished and a glass sheet load is being cooled to a handling temperature. By means of stopping or setting it in very slow motion, it is possible to produce stresses in quenched glass which do not normally damage glass but which shatter those glasses that would later break due to the faults already there. Neither will the stationary or very slowly moving rollers be damaged when glasses shatter. During the quenching, the furnace (12) oscillates empty with a result that the furnace overload caused by even the thickest glass sheets will have time to compensate prior to passing fresh glass into the furnace.</p> |
