1450mm 4Hi Skin Pass Mill
1450mm四辊光整机
1. Usage: To eliminate yielding, adjust roughness on the surface of the strip and improve the straightness.
用途：消除屈服平台，调整镀锌带钢表面粗糙度，改善带钢的平直度。 2. Parameter
机组技术参数：
2.1. Raw material
原材料
⏹Material Type: After galvanizing cold rolled coils
材料规格：经冷轧镀锌后的带材。
⏹Material: plain carbon steel, good quality low carbon steel
材质：普碳钢、优质低碳钢
⏹Capability: Max yield limit:: σs =150～456 Mpa
机械性能: 最大屈服极限
⏹Thickness: 0.2～1.5mm
厚度
⏹Width: 600～1250mm
宽度：
2.2. Equipment performance
设备性能:
◆Max rolling force: 3000KN
最大轧制力
◆Max rolling moment: 13.5KN-M
最大轧制力矩
◆Tempering speed: 90m/min (Max.)
平整速度
◆Tension before unit: 73KN (Max.)
机前张力
◆Tension after unit: 73KN(Max.)
污水填料机后张力
◆Work roll specification: Ф350/330×1450mm
◆Backup roll specification: Ф760/730×1400mm
支承辊规格
◆Max work roll opening size: 20mm
工作辊最大开口度
◆Work roll bending force(single side): 叶轮给粉机200KN
工作辊弯辊力（单边）
◆Press down/push up type: electrical adjustment, hydraulic push up
压下/推上型式: 电动调整，液压推上
◆Roll exchange type: hydraulic online rapid exchange
换辊方式: 液压在线快速换辊
◆Work roll exchange hours: 8 min(approximately)
工作辊换辊时间：8min（大约）
◆Backup roll exchange hours: 30 min(approximately)
支承辊换辊时间：30min（大约）
◆Rolling type: constant rolling force, wet skin pass
◆Drive type: lower work roll drive
传动型式: 下工作辊传动
◆Main motor: 110KW
主电机
◆Hydraulic system working pressure thickness control, bending roll system: 14Mpa
液压系统工作压力：厚控、弯辊系统
◆电能计量接线盒Normal hydraulic drive system: 8Mpa
普通液压传动系统
3. Equipment level
95215248
装机水平
4.1. Skin pass mill adopts full hydraulic screw up, computer auto control. control computer system adopts 2-level computer control, and control functions include constant rolling force control, roll constant position control and elongation control.
光整机采用全液压压上、计算机自动控制。控制计算机系统采用两级计算机控制，控制功能包括恒轧制力控制、轧辊恒位置控制及延伸率控制。
4.2. Skin pass mill has screw-down adjusting, work roll positively bending control means.
光整机具有压下调整、工作辊正弯辊控制手段。
4.3. Work roll rapid exchange
工作辊快速换辊。
5. Equipment composition
设备组成
1450mm skin pass mill is composed of mechanical equipment, electric drive and computer control system, hydraulic system, etc.
1450mm光整机由机械设备、电气传动和计算机控制系统、液压系统等组成。
5.1. Mechanical equipment
机械设备
Skin pass mill is composed of stand, roll series, roll balance and positively roll bending device, electrical adjusting device, anti-creasing roll, drive device, roll exchange device, etc.
光整机由机架、辊系、轧辊平衡及正弯辊装置、电动调整机构、防皱辊、传动装置、换辊装置等组成。
5.1.1. Stand: the stand is closed type cast steel structure, and its window’s four angles is arc, four sides are all mechanical worked. A beam is used to connect two housing windows. Slide plates are set at both sides of the Stand’s window.
机架：机架为闭式铸钢机架，机架窗口四角圆弧形过渡，四面均机械加工。两块牌坊之间用横梁连接。机架窗口两侧装嵌滑板。
5.1.2. Roll series: roll series includes up/lower work roll assembly and up/lower backup roll assembly.wifi室内定位
辊系：辊系包括上下工作辊装配及上下支承辊装配。
Material of work roll: 9Cr2Mo
工作辊材质
Roll surface hardness: HS90-95
辊面硬度
Material of backup roll: 9Cr2Mo
支承辊材质
Roll surface hardness: HS70-75
辊面硬度
5.1.3. Roll balance and bending roll: up backup roll balance is accomplished by 4 balance cylinders positioned at the middle cylinder zone of the skin pass mill’s window. Work roll balance and bending roll is accomplished by bending roll cylinder positioned at the middle cylinder zone between two housing windows. Adopts positively bending roll type, bending force is continuous adjusted by proportional reducing valve, and it can be remote controlled.
轧辊平衡及弯辊：上支承辊平衡由布置在平整机窗口中部缸块的四个上支承辊平衡油缸完成。工作辊平衡及弯辊由装在两牌坊中部缸块的弯辊缸执行。采用正弯辊型式，弯辊压力通过比例减压阀系统连续调节，可远程控制。
5.1.4. Electrical adjusting device: to achieve roll rapid exchange without stopping the line, electric rapidly screw down/lifting device is set to achieve the rapid separation of upper/lower tempering work roll and rolling line automatic adjusting. When the line is doing tempering, electric screw-down device does not have the function of screw-down with load.
电动调整机构：为了适应作业线不停产快速换辊的需要，设置了电动快速压下/抬起机构，以实现上下平整工作辊的快速分离及轧线自动调整。在作业线进行平整操作时，电动压下机构不具备带载压下功能。
5.1.5. A水粉盒nti-creasing roll: one set of anti-creasing roll is set at both entrance and exit. Anti-creasing roll is hydraulic controlled up/down. The roll is hollow free-rotating roll with its surface chromium plated and rolling bearing embedded.
防皱辊：光整机的入口及出口各设有1套防皱辊，防皱辊液压操作其升降。防皱辊为空心自由转动辊，表面镀铬，内嵌滚动轴承。
5.1.6. Drive device: AC motors drive the lower work roll through reducer and universal joint. Universal joint is connected with roll’s pivot bracket in platycephaly type, and bracket is also set for the roll exchange operation. Upper work roll is set with auxiliary drive system.
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