The process characteristic is that the first draw occurs in a steam box and the second draw between the succeeding drawingroller and setting roller.
其后加工特点是:一级拉伸发生在蒸气浴槽内,二级拉伸发生在第二拉伸辊与定型辊之间。
2
Computer aided drawing is an important part in bearing CAD system, parametric drawing of roller bearing changes the traditional manual drawing method and realizes automation of roller bearing drawing.