Key technology research of continuous casting-direct rolling process for wire rod and bar
In order to meet the demand of green and sustainable development in the transformation and upgrading of Chinese iron and steel industry,the serious problem of energy loss in the production of wiro rod and bar should be solved.The key technology of continuous casting and direct rolling of wire rod and bar was deeply studied.The process is a new type of process suitable for the production of ordinary wire rod and bar.By making full use of metallurgical heat energy of continuous casting billet,the heating process of billet can be completely eliminated,so as to achieve energy saving,emission reduction and burn loss reduction.The key technologies of wire rod and bar continuous casting and direct rolling process were studied and analyzed from four as-pects:production capacity matching,temperature matching,rhythm matching and production management.The mathematical expressions of production capacity matching and rhythm matching were derived,and the variation law of casting billet tempera-ture during the whole process from continuous casting to rolling was studied.The integrated production system of continuous casting and direct rolling process and the typical process layout scheme were given.The results show that wire rod and bar con-tinuous casting and direct rolling is a green,environmentally friendly,low cost,high benefit and high efficiency production mode,which has good economic benefit and broad application prospect.
bar and wire rodcontinuous casting-direct rollingenergy saving and emission reductionenvironment-friendlyhigh efficiencylow cost
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