| 摘要 |
<p>The invention concerns a roller-hearth kiln for heating glazing sheets (6) to their softening temperature comprising, above the roller conveying means (3), vanes forming blow-pipes (12, 13) arranged transversely to the displacement direction of the glazing sheets (6) and designed to blow hot gas on the top surface of the glazing sheet, and beneath the roller conveying means (3), to provide exclusively heating by radiation (5).</p> |
