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无水冷技术是小型轧钢加热炉上行之有效的节能新技术.它在节约用水,降低能耗,提高钢坯加热质量等方面均可收到明显的效果。但是目前使用的耐热钢滑轨和碳化硅—棕钢玉滑轨在高温段使用寿命均不理想,致使无水冷技术的推广受到严重影响。1990年下半年,天津市轧钢四厂在调查研究的基础上,借鉴玻璃窑炉用电熔锆刚玉材料,将其用于无水冷滑轨试验,经过1年多的生产实践,取得了比较满意的结果。该厂轧材加热炉有效面积3.1m×18.5m=57m~2,加热坯料尺寸为45×45、50×50、55×55方坯,最大产量25t/h,单面加热,高温段炉温达1320～1350℃,甚至更高.过去该炉
Waterless cooling technology is an effective new energy saving technology for small steel rolling furnaces, which can receive obvious effects in saving water, reducing energy consumption and improving the heating quality of billet. However, the heat-resistant steel rails and the silicon carbide-brown steel jade rails currently used are not ideal for service life at high temperature, resulting in the serious impact of the promotion of the non-water cooling technology. In the second half of 1990, on the basis of investigation and research, Tianjin No.4 Steelmaking Plant used the fused zirconia corundum material for glass furnace and used it for the test of waterless cold slide. After more than one year of production practice, it achieved satisfactory results the result of. The mill rolling mill heating furnace effective area 3.1m × 18.5m = 57m ~ 2, heating the billet size of 45 × 45,50 × 50,55 × 55 billets, the maximum output of 25t / h, single-sided heating, high temperature furnace temperature Up to 1320 ~ 1350 ℃, or even higher. Past the furnace