1.In the paper, study on displacement law of blank hole for forming cylindraceous with bottom border by numerical simulation technology.

1.通过数研究了带底孔的圆筒件成后底孔的律,在基础上建立了带底孔的圆筒件成后毛料中心孔律的经验公式。

2.Y series wrapping machine is suitable for the packaging of cylindraceous goods.This method of packing prevent the goods from dust , water etc .

2.Y系列圆筒式缠绕包装机对圆筒状物体进行轴向包装，实现物体的整体裹包。