重型机械
重型機械
중형궤계
HEAVY MACHINERY
2015年
4期
23-28
,共6页
陈帅彰%孙斌煜%王龙%崔鹏鹏%宋黎
陳帥彰%孫斌煜%王龍%崔鵬鵬%宋黎
진수창%손빈욱%왕룡%최붕붕%송려
轧制力%轧扁%接触面形状%变形率
軋製力%軋扁%接觸麵形狀%變形率
알제력%알편%접촉면형상%변형솔
rolling force%flat roll%contact surface shape%deformation rate
扁钢丝应用越来越广泛，国内外对其轧制力公式鲜有研究。本文从轧件变形率、轧件与轧辊的接触面积两方面对斯通公式进行优化，使其适用于圆形截面的线材扁平化轧制。将斯通公式中用高度压下表示的变形率ε改为ε′轧件横截面积表示的变形率，并拟合出ε′与ε的非线性方程；对轧件与轧辊的接触形状做了椭圆的假设并推导出了接触面积影响系数S。结合对斯通公式两方面的改进得出优化后的计算公式。对轧扁过程进行了数值模拟和实验测定，提取轧制力进行结果比较分析，得出改进后的计算公式能够很大程度的提高轧制力计算精度，这对实际工程应用有极大意义。
扁鋼絲應用越來越廣汎，國內外對其軋製力公式鮮有研究。本文從軋件變形率、軋件與軋輥的接觸麵積兩方麵對斯通公式進行優化，使其適用于圓形截麵的線材扁平化軋製。將斯通公式中用高度壓下錶示的變形率ε改為ε′軋件橫截麵積錶示的變形率，併擬閤齣ε′與ε的非線性方程；對軋件與軋輥的接觸形狀做瞭橢圓的假設併推導齣瞭接觸麵積影響繫數S。結閤對斯通公式兩方麵的改進得齣優化後的計算公式。對軋扁過程進行瞭數值模擬和實驗測定，提取軋製力進行結果比較分析，得齣改進後的計算公式能夠很大程度的提高軋製力計算精度，這對實際工程應用有極大意義。
편강사응용월래월엄범，국내외대기알제력공식선유연구。본문종알건변형솔、알건여알곤적접촉면적량방면대사통공식진행우화，사기괄용우원형절면적선재편평화알제。장사통공식중용고도압하표시적변형솔ε개위ε′알건횡절면적표시적변형솔，병의합출ε′여ε적비선성방정；대알건여알곤적접촉형상주료타원적가설병추도출료접촉면적영향계수S。결합대사통공식량방면적개진득출우화후적계산공식。대알편과정진행료수치모의화실험측정，제취알제력진행결과비교분석，득출개진후적계산공식능구흔대정도적제고알제력계산정도，저대실제공정응용유겁대의의。
Flat wire is widely applied , but there is few studies about its rolling force formula at home and a-board.This article develop the Stone formula from the wire deformation rate , contact area of wire and roll con-tact to make it suitable for circular cross section of the wire flat rolling .Change deformation rate expressed with wire of cross-sectional area deformation rate instead of thickness reduction in Stone formula , and fitting out the nonlinear equation;make a hypothesis that the contact shape of wire and roll is ellipse and derive the contact area influence coefficient S .Combined with the improvement of the two aspects of Stone formula the formula is obtained after optimization .The rolling process were determined by numerical simulation and experiments , the extraction of rolling force compared the result analysis , a formula of the improved can improve the calculation precision of rolling force greatly , it is of great significance to the actual project application .
