简述了热卷箱技术在热轧带钢生产中的发展历史,重点介绍了热卷箱的主要设备组成和工作原理。对热卷箱减少中间坯温降、恒速轧制、缩短粗轧机与精轧机之间距离、提高带钢成材率和改善产品质量等技术特点进行了论述。结合国内2250 mm不锈钢热轧带钢轧机实际生产情况,分析了新式无芯轴热卷箱在不锈钢极限规格生产、薄规格轧制稳定性、产品边部和表面质量改善等方面的积极作用。
The article describes the development history of the coilbox for the hot strip mill and introduces the main equipment configuration and operating principle of the mandrel-less coilbox.The main technical features of coilbox are discussed with regard to temperature drop at the head and tail of transfer bars,constant speed rolling,distance between roughing mills and finishing mills,product yield and product quality.According to the actual production achievement of some domestic 2250mm hot strip mill for stainless steel rolling,the mandrel-less coilbox is favorable in limit size rolling for the stainless steel,increasing rolling stability of thin strips and improving edge and surface quality,etc.
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