分析了采用锥形轧辊，在辗轧角和送进角同时存在时金属的变形特点。
Also analyzed are the deformation characteristics of the metal when conical roll is used and there exist both toe Angle and feed Angle.
指出了锥形辊穿孔机也要和桶形辊穿孔机一样，要重视对穿孔机轧辊转速的控制。
It is pointed out that like the barrel type piercer process, the control of the cone type piercer roll speed is also very important.
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