| 摘要 |
<p>The present invention relates to a method that involves, before heating a slab susceptible of thermal deformation, pulverising on said slab a single-layer aluminium coating having a thickness of between 0.1 and 0.3 mm and a through-porosity of between 6 and 8 %. The layer thus obtained is treated using an impregnation mixture and further dried for 2 to 24 hours at a temperature of up to 70 °C. The fine-dispersion filler of the impregnation mixture consists of aluminium or aluminium-oxide powders, or mixtures thereof, in a proportion of 1: (1 - 1.5).</p> |
