Claims (5)
一種精軋機座之進口冠高的計算方法，適用於多數台依序設置的上游精軋機座與下游精軋機座，該等上游精軋機座包括一起點上游精軋機座與一終點上游精軋機座，該等下游精軋機座包括一起點下游精軋機座與一終點下游精軋機座，該方法包含以下步驟：(A)根據每一下游精軋機座之最大彎輥力與最小彎輥力，判斷是否可獲得一下游機座冠高重疊區間，其中該下游機座冠高重疊區間之範圍係該等下游精軋機座之冠高區間的重疊範圍；(B)若可獲得該下游機座冠高重疊區間，則根據一預設出口冠高，及該下游機座重疊冠高區間，反向地獲得每一下游精軋機座之進口冠高，其中該預設出口冠高係該終點下游精軋機座之出口冠高；(C)根據每一上游精軋機座之最大彎輥力、最小彎輥力、最大工輥橫移量與最小工輥橫移量獲得一進口與出口冠高對照表，其中該進口與出口冠高對照表之橫軸為進口冠高，縱軸為出口冠高；(D)根據一預設進口冠高，及該進口與出口冠高對照表獲得一上游機座重疊冠高區間，其中該上游機座重疊冠高區間之範圍係該等上游精軋機座之冠高區間的重疊範圍；及(E)根據該起點下游精軋機座之進口冠高，及該上游機座重疊冠高區間，反向地獲得對應每一上游精軋機座之最大出口冠高與最小出口冠高，並根據該進口與出口冠高對照表以及每一上游精軋機座之最大出口冠高與最小出口冠高之平均值，獲得相對應上游精軋機座之進口冠高，其中該起點上游精軋機座之進口冠高即該預設進口冠高。The calculation method of the inlet crown height of the finishing stand is applicable to the upstream finishing stand and the downstream finishing stand which are arranged in a plurality of stages, and the upstream finishing stand includes an upstream finishing stand and an end finishing finishing stand The downstream finishing stand includes a downstream finishing stand and an end finishing finishing stand. The method comprises the following steps: (A) judging according to the maximum bending force and the minimum bending force of each downstream finishing stand Whether a lower overlap height of the lower frame crown is available, wherein the range of the overlap height of the downstream machine seat is the overlapping range of the crown height intervals of the downstream finishing stands; (B) if the lower frame crown height is available The overlap interval is obtained by inversely obtaining the inlet crown height of each downstream finishing stand according to a preset exit crown height and the overlapping crown height interval of the downstream frame, wherein the preset exit crown height is the end point downstream finishing mill The exit of the seat is high; (C) According to the maximum bending force of each upstream finishing stand, the minimum bending force, the maximum roll traverse and the minimum roll traverse, an import and export crown height comparison table is obtained. Which should be The horizontal axis of the comparison table with the export crown height is the inlet crown height, and the vertical axis is the exit crown height; (D) according to a preset inlet crown height, and the inlet and outlet crown height comparison table obtains an upstream base overlap crown height interval Wherein the range of the overlapping crown height of the upstream base is the overlapping range of the crown height intervals of the upstream finishing stands; and (E) the inlet crown height of the finishing stand downstream of the starting point, and the overlapping crown of the upstream stand The high interval, in reverse, obtains the maximum exit crown height and the minimum exit crown height corresponding to each upstream finishing stand, and according to the inlet and outlet crown height comparison table and the maximum exit crown height and minimum exit of each upstream finishing stand The average value of the crown height is obtained as the corresponding import crown height of the upstream finishing stand, and the inlet crown height of the finishing rolling stand of the starting point is the preset inlet crown height.
根據申請專利範圍第1項所述之精軋機座之進口冠高的計算方法，其中在步驟(E)中包含以下子步驟：(E-1)根據該起點下游精軋機座之進口冠高，及該上游機座重疊冠高區間，先獲得該終點上游精軋機座之最大出口冠高與最小出口冠高之平均值，再獲得該終點上游精軋機座之進口冠高；及(E-2)根據該終點上游精軋機座之進口冠高，及該上游機座重疊冠高區間，反向地先獲得其它的上游精軋機座之最大出口冠高與最小出口冠高，以獲得相對應上游精軋機座之進口冠高。The calculation method of the inlet crown height of the finishing stand according to item 1 of the patent application scope, wherein the step (E) comprises the following sub-steps: (E-1) according to the inlet crown height of the downstream finishing stand of the starting point, And the upper frame overlap crown height interval, first obtaining the average value of the maximum exit crown height and the minimum exit crown height of the finishing mill stand upstream of the end point, and obtaining the inlet crown height of the finishing mill stand at the end point; and (E-2 According to the inlet crown height of the finishing mill stand upstream of the end point and the overlapping crown height range of the upstream stand, the maximum exit crown height and the minimum exit crown height of the other upstream finishing stand are obtained in reverse to obtain the corresponding upstream The entrance crown of the finishing stand is high.
根據申請專利範圍第2項所述之精軋機座之進口冠高的計算方法，其中在步驟(E-1)中還根據一冠高臨界值獲得該終點上游精軋機座之進口冠高。According to the calculation method of the inlet crown height of the finishing stand according to item 2 of the patent application scope, in the step (E-1), the inlet crown height of the finishing mill stand of the end point is obtained according to a crown high threshold value.
根據申請專利範圍第1項所述之精軋機座之進口冠高的計算方法，其中在步驟(A)與步驟(B)之間還包含一步驟(G)：若無法獲得該下游機座冠高重疊區間，則將該預設出口冠高調整為該等下游精軋機座其中之一者的冠高區間之上緣的值。According to the calculation method of the inlet crown height of the finishing stand according to the first aspect of the patent application, wherein a step (G) is further included between the step (A) and the step (B): if the downstream seat crown is not obtained In the high overlap interval, the preset exit crown height is adjusted to the value of the upper edge of the crown height interval of one of the downstream finishing stands.
根據申請專利範圍第1項所述之精軋機座之進口冠高的計算方法，其中在步驟(A)中，係根據該等下游精軋機座之最小彎輥力獲得每一下游精軋機座之不產生中波的最大進口冠高值與最大出口冠高值，再根據該等下游精軋機座之最大彎輥力獲得每一下游精軋機座之不產生邊波的最小進口冠高值與最小出口冠高值，繼而獲得對應每一下游精軋機座之冠高區間。The calculation method of the inlet crown height of the finishing stand according to item 1 of the patent application scope, wherein in the step (A), each of the downstream finishing stands is obtained according to the minimum bending force of the downstream finishing stands The maximum inlet crown height value and the maximum outlet crown height value of the medium wave are not generated, and the minimum inlet crown height value and minimum value of each downstream finishing stand without generating side waves are obtained according to the maximum bending force of the downstream finishing stand. The export crown is high, and then the crown height interval corresponding to each downstream finishing stand is obtained.