摘要 |
<p>PURPOSE:To laminate a heat insulating sheet on the surface of a steel sheet by a method in which the temperature elevation of the heated steel sheet is controlled as low as possible. CONSTITUTION:An infrared radiation heater 20 is installed in a furnace 14, into which a steel sheet 1 supported by an endless chain 17 is fed. A heat insulating sheet 3 is pressed on the heated steel sheet 1 taken out of the furnace 14 to prepare the laminated product.</p> |