| 摘要 |
A method to observe glass ( 1 ) and to regulate the heating effect of heating elements ( 5 ) in a sheet glass hardening furnace, which furnace comprises a glass heating sector, a transportation rail ( 3 ) to transport glass ( 1 ) to and from the said heating section and said heating elements ( 5 ) to heat the glass by means of radiation and air blast, and a furnace control system to carry out the hardening process of glass ( 1 ). The location area in the furnace of one or several glass sheets ( 1 ), watched from the glass sheet level, is observed with measuring instruments ( 6 ), by means of which air temperatures in the heating section above glass ( 1 ) transportation rail ( 3 ) is measured and the heating effect of their heating elements ( 5 ) raised by regulation, at which the location of glass sheet ( 1 ) is observed by means of the method.
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