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表面有花纹的钢板,美观、且能增加摩擦,节约钢材,在建筑、造船、交通及机械制造等行业得到广泛应用。轧制时,压花机架压下量大、轧制力高、主电机负荷急剧增加、变形不均匀、轧辊易掉肉而增加辊耗。用一根辊面刻有八种花纹的组合花纹辊,做组合花纹板轧制试验,确定花纹尺寸,采用高温轧制,压花机架相对压下率为25～30%,花纹辊比平辊直径大5～7mm,轧辊表面硬度降至54～60 Hs。通过改造出口护板等合理工艺措施,在我国自行设计制造的1700 mm热连轧机上成功地生产了花纹板,花纹高度达到1.56mm,平均单辊轧制量为1352 t,均达到国内先进水平。还讨论了双机压花、异经轧制、润滑轧制等新技术使变形抗力降低、辊耗下降、明显改善花纹高度和表面质量。
Surface pattern of steel, beautiful, and can increase friction, saving steel, in the construction, shipbuilding, transportation and machinery manufacturing industries are widely used. Rolling, the embossing rack a large amount of rolling force is high, the main motor load increased dramatically, the deformation is not uniform, the roll easy to lose meat and increase roll consumption. With a roller surface engraved with eight patterns of the combination of pattern roller, do the combination of plate rolling test to determine the size of the pattern, the use of high-temperature rolling, embossing rack relative reduction rate of 25 to 30% Roll diameter of 5 ~ 7mm, the roll surface hardness dropped to 54 ~ 60 Hs. By reforming the export protection and other reasonable process measures, the 1700 mm hot strip mill designed and manufactured by our country has successfully produced the pattern board with the pattern height of 1.56mm and the average single-roller rolling amount of 1352 tons, both of which have reached the advanced domestic level . Also discussed dual embossing, different rolling, lubrication rolling and other new technologies to reduce the deformation resistance, roller consumption decreased, significantly improve the pattern height and surface quality.