采用三维流函数法对棒材热连轧时的椭圆-圆孔型系统进行了力能参数的解析，其结果与实测结果符合很好。
Using three dimensional fluxional function, the rolling force and energy parameters of oval round pass sequences for hot continuous bar rolling were analyzed.
在大圆钢轧制或大断面轧件延伸孔型系统中，双半径椭圆孔型与单半径椭圆孔型相比，具有轧件易咬入、变形较均匀、孔型磨损小等优点。
The double radius ellipse pass is better than the one of single radius ellipse in the big round bar or big section steel rolling.
在大圆钢轧制或大断面轧件延伸孔型系统中，双半径椭圆孔型与单半径椭圆孔型相比，具有轧件易咬入、变形较均匀、孔型磨损小等优点。
The double radius ellipse pass is better than the one of single radius ellipse in the big round bar or big section steel rolling.
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