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一、前言马钢热轧窄带钢生产线投产于上世纪80年代末。年设计能力10万吨,截止到2003年,产量已达32万吨,产品规格为2.2～5.0×110～220mm,轧制钢种为普碳钢、低合金钢,轧机布置形式为粗轧机,由(?)510×1500两架横列式布置和精轧一立二平一立四平八架轧机所组成的半连续式生产机组。该生产线的轧后工序采用了蛇形套冷却、立式卷取工艺,即带钢轧出成品机架后,通过扭转导板将带钢翻转90°,竖立于导槽中,经1#夹送辊由分岔导板将轧件分别导入长期工作制的1#或2#振荡器,并在1#或2#平板运输机上使带钢形成连续式蛇形套送往立式卷取机进行卷取(见图1)。作为该生产线轧后工序中的“咽喉”部位:分岔装置。它在生产中工作性能的稳定性是直接关系到轧机产能的
I. Introduction Magang hot rolled narrow strip steel production line put into operation in the late 1980s. Annual design capacity of 100,000 tons, as of 2003, the output has reached 320,000 tons, the product specifications for the 2.2 ~ 5.0 × 110 ~ 220mm, rolled steel for the carbon steel, low alloy steel, rolling mill layout for the rough rolling mill, The semi-continuous production unit consisted of (?) 510 × 1500 two row arrangement and finishing rolling one two two one four four flat eight rolling mills. The production line after the rolling process using serpentine sleeve cooling, vertical coiling process, that is, the strip rolled out of the finished rack, the strip by turning the guide plate flip 90 °, erected in the guide groove, the pinch by 1 # The rolls are guided by bifurcated guide plates to the long-working 1 # or 2 # oscillators, respectively, and the strip is formed into a continuous serpentine sleeve on a # 1 or a 2 # Take (see Figure 1). The “throat” part in the process of rolling the line: bifurcation. Its stability in working performance is directly related to mill capacity