傳統(tǒng)的板形控制方法包括輥傾斜、工作輥彎輥和調(diào)整輥冷卻系統(tǒng),但這些方法不能完全滿足板形控制的要求,雖然因為彎曲設(shè)備響應(yīng),但有害干擾以外的軋制力和軋制力矩工件寬度,使得相當(dāng)一部分的彎輥力作用抵消,阻礙發(fā)展的彎曲輥的影響;為了提高冷卻液流量的分辨率精度，將噴嘴的流量比提高到10:1。此外，鋁板生產(chǎn)廠家采用各種機械方法對軋輥系統(tǒng)進(jìn)行修改，達(dá)到快速換輥的目的:
　　Traditional flatness control methods include roll tilt, work roll bending and adjustment roll cooling system, but these methods can not fully meet the requirements of flatness control. Although the bending equipment responds, the rolling force and rolling torque workpiece width outside the harmful interference make a considerable part of the bending force offset, hindering the development of the bending roll; In order to improve the resolution accuracy of coolant flow, the flow ratio of the nozzle is increased to 10:1. In addition, aluminum plate manufacturers use various mechanical methods to modify the roll system to achieve the purpose of rapid roll change:

　　(1)HC(高弧度)六輥機——在四輥軋機工作輥和支承輥之間添加一對中間輥可以沿軸向相對移動,所定義的軋件寬度移動距離,用于消除有害的軋件寬度工作輥和支承輥之間的聯(lián)系,減少稀釋兩岸的軋件,提高彎輥力控制面板形狀的影響。
　　(1) HC (high camber) six roll mill - a pair of intermediate rolls can be added between the work roll and the back-up roll of the four roll mill to move relatively along the axial direction. The defined moving distance of the strip width is used to eliminate the relationship between the harmful strip width work roll and the back-up roll, reduce the dilution of the strip on both sides, and improve the influence of the roll bending force control panel shape.
　　(2)VC(變量弧度)輥采用液壓腔內(nèi)輥支承輥,通過改變腔壓力的方法調(diào)整支承輥弧度,抵消輥軋制力的作用下?lián)系哪Хā?br /> 　　(2) VC (variable radian) roll adopts the back-up roll in the hydraulic cavity. By changing the cavity pressure, the radian of the back-up roll is adjusted to counteract the magic of deflection caused by the roll rolling force.
　　(3)TP(錐形活塞)輥兩端支承輥內(nèi)錐面活塞環(huán),活塞與液壓傳動輥環(huán)調(diào)整弧魔法。
　　(3) TP (conical piston) roller both ends support the conical piston ring in the roller, and the adjustment arc magic of the piston and the hydraulic drive roller ring.
　　(4）DSR(動態(tài)弧度)卷7液壓缸套在支承輥,使用液壓旋轉(zhuǎn)軸套,在軋件平面度要求的位置校正直接調(diào)節(jié)卷弧度(5),CVC輥(連續(xù)變量弧度)使用兩個工作輥的形狀就像一個保齡球,兩輥磨程度相同,但相互錯位18上下排列,軋輥長度的實際直徑差小于1mm時，在軋輥間隙形狀相對運動時，根據(jù)線性連續(xù)變化位置的規(guī)律，當(dāng)工作輥在150mm之間軸向運動時，各軋輥的弧度可從0。5毫米到+ 0毫米。3米3)零電阻HC軋機中間輥的輥系和CVC工作輥運動需要幾秒,所以通常為預(yù)設(shè)定調(diào)整磨機空載運行時,而不是在動載荷的滾動一個vc輥、TP輥和安全域輥以及預(yù)設(shè)定調(diào)整,也可以應(yīng)用于動態(tài)長vc輥和TP卷使用時,軋制力還作用于頸部的支撐輥。當(dāng)DSR輥使用時，支撐輥內(nèi)的液壓缸代替輥頸處的壓緊裝置。
　　(4) DSR (dynamic camber) roll 7 hydraulic cylinder liner is on the back-up roll, which uses the hydraulic rotating shaft sleeve to directly adjust the roll camber (5) at the position required by the flatness of the rolled piece. CVC roll (continuous variable camber) uses two working rolls whose shape is like a bowling ball. The two rolls are of the same grinding degree, but they are arranged up and down in dislocation 18, When the actual diameter difference of the roll length is less than 1mm, when the gap shape of the roll moves relatively, according to the law of linear continuous change position, when the working roll moves axially between 150 mm, the radian of each roll can be 0. 5mm to + 0mm. 3 m3) the movement of the intermediate roll system and CVC working roll of the zero resistance HC mill takes several seconds, so it is usually preset to adjust the no-load operation of the mill, instead of rolling a VC roll, TP roll, safety zone roll and preset adjustment under dynamic load. It can also be applied to the use of dynamic long VC roll and TP roll, and the rolling force also acts on the supporting roll at the neck. When the DSR roll is used, the hydraulic cylinder in the supporting roll replaces the pressing device at the roll neck.
　　因此，可以在不影響軋輥撓度的情況下改變熱軋帶鋼的平臺偏差，這是導(dǎo)致更終產(chǎn)品厚度偏差的主要原因。在冷軋機采用的設(shè)備和控制系統(tǒng)可以小于垂直厚度公差的千分之幾,但橫向厚度公差通常大于跳關(guān)閉,這是由于帶鋼冷軋,因為厚度很小,金屬橫向流動的限制,所以改善原來的皇冠,不會產(chǎn)生直線度偏差時鋁合金帶材厚度大于12毫米,可在不影響軋件凸度的前提下進(jìn)行矯正。鑒于熱軋精軋機的精軋機厚度小于更小厚度，在熱軋后更后一次在精軋機上卷取時，除了用輪廓儀檢測產(chǎn)品的凸度外，還需要用平整度儀監(jiān)測產(chǎn)品的平整度。從熱軋機上軋制出來的帶鋼應(yīng)該有一個輕微的中間凸度，但不是中間凸度，因為帶鋼的中心部分可以容納比邊緣的應(yīng)力更多，但仍然保持其平整度。
　　Therefore, the platform deviation of hot rolled strip can be changed without affecting the roll deflection, which is the main reason for the thickness deviation of the final product. The advanced equipment and control system adopted in the cold rolling mill can be less than a thousandth of the vertical thickness tolerance, but the horizontal thickness tolerance is usually greater than the skip close. This is due to the cold rolling of strip steel, because the thickness is very small and the horizontal flow of metal is limited, so the original crown is improved, and the thickness of aluminum alloy strip is greater than 12mm when the straightness deviation does not occur, It can be corrected without affecting the crown of the rolled piece. Since the thickness of the finishing mill of the hot rolling finishing mill is less than the minimum thickness, it is necessary to use the flatness meter to monitor the flatness of the product in addition to using the profilometer to detect the convexity of the product when coiling on the finishing mill for the last time after hot rolling. The strip rolled from the hot rolling mill should have a slight intermediate crown, but not an intermediate crown, because the central part of the strip can accommodate more stress than the edge, but still maintain its flatness.
　　以上是鋁板生產(chǎn)廠家為大家介紹的相關(guān)內(nèi)容，想要了解更多內(nèi)容，歡迎訪問網(wǎng)站：http://www.wangzhuanquan.cnThe above is the relevant content introduced by the aluminum plate manufacturer for you. To learn more, please visit the website: http://www.jndclyxgs.com