摘要
武钢热轧带钢厂1978年投产,截至1988年年产量已超过设计值。由于产量不断增长出现质量下降及加热能力不足等问题。为进一步增产,改善质量,降低消耗拟进行技术改造。改造项目主要有:增建4号加热炉,全部选用230 mm 厚连铸长坯,板坯热送热装,强化粗轧压下能力,精轧采用串辊及工作辊强力弯辊以达到板形闭环控制及卷取机的综合治理。改造后年产量可提高到410万 t,工序能耗降低,成材率提高,产品尺寸精度改善,经济效益好。改造投资在21个月内可全部收回。
The hot strip mill at Wuhan Iron and Steel Co.came into operation in 1978 and its annualoutput in 1988 exceeded the design value.As the output increased continuously,it appeared thatthe reheating capacity is insufficient and the quality of products tends to deteriorate.In order toincrease output,improve quality and save energy,the hot strip mill needs to be reconstructed.In the reconstruction plan following items are considered:addition of No.4 reheating furnace;all CC producing long slabs of 230 mm thickness;hot charge rolling (HCR);increase of screwdown in rough rolling;work roll shift (HC) and bending (WORB) system at finisher for shapeclose loop control;as well as the comprehensive administration of the coilers.After the reconstruction,annual output will increase to 4.1 million tons,process energy con-sumption will be reduced,yield and tolerences of strips will be improved,better ecomonic resultswill be obtained and investment can be completely repayed in 21 months.
出处
《钢铁》
CAS
CSCD
北大核心
1990年第1期30-33,共4页
Iron and Steel
