本专利介绍了一种对金属管进行辊压轧纹的装置,它可用来制造电缆的护套。我们知道,以前的轧纹装置,是通过由若干齿形辊轮形成一个让管坯强行通过的型孔来实现的。当在齿形辊轮所形成的圆形型孔中进行纵向辊轧时,在管坯外表面上与相邻辊轮汇合处相接触的地方会形成外筋,这是因为是辊轮的齿端轧至管坯外表面的缘故。 This patent describes a roll embossed metal tube device, which can be used to make the cable sheath. We know that the previous embossing device was achieved by a number of toothed rollers forming a hole through which the tube was forcibly passed. When longitudinally rolling in a circular hole formed by a toothed roller, the outer rib is formed on the outer surface of the blank tube in contact with the abutment of the adjacent rollers, because the teeth of the roller End rolling to the outer surface of the tube reason.