一、球形件压延的某些特点 1.在压延过程中,由于大部分的毛料不在压边圈下面,故而在凸缘收缩流动时,容易形成凸起的皱纹及舌帽现象。 2.对于压延铝厚料(δ1.5毫米以上)及钢料,应注意产生高温粘结的现象。 3.对于压延薄料(δ≤0.5毫米)和软料,有直筒、球体及带下陷的零件,应特别注意它的卸件问题。二、解决办法 1.对于凸起皱纹 First, the ball some of the characteristics of calendering 1. In the rolling process, because most of the wool is not under the blank holder, so when the flange shrinkage flow, the formation of convex wrinkles and cap phenomenon easily. 2. For rolling thick aluminum material (δ1.5 mm above) and steel, should pay attention to the phenomenon of high temperature bonding. 3. For rolled thin material (δ≤0.5 mm) and soft material, there are straight, spherical and sagging parts, special attention should be paid to its unloading. Second, the solution 1. For the raised wrinkles