1.辗压过程要求轧制过的环件具有高质量的表面,所以不仅环件的内表面和外表面用一对水平辊子轧制,并且它的端面也要用一对垂直辊子轧制(图1)。这样能使环件有尖的棱角和光滑的端面。为此最重要的条件是环件端面与垂直辊子(亦称锥辊)之间的滑功尽可能小。水平辊子由主辗压辊和芯辊组成,主辗压辊的中心线是固定的。在辗扩过程中,调节芯辊向主辊移动。使环在径向得到锻制,它的横截面减小,而直陉增大。环件的外径表面与主辗压辊总是 1. The rolling process requires that the rolled ring has a high quality surface, so that not only the inner and outer surfaces of the ring are rolled with a pair of horizontal rollers, but also the end surfaces thereof are rolled with a pair of vertical rollers figure 1). This gives the ring sharp edges and smooth faces. The most important condition for this purpose is to minimize the slip between the end faces of the rings and the vertical rollers (also known as cone rollers). The horizontal roller is composed of a main roller and a core roller. The center roller of the main roller is fixed. In the rolling process, adjust the core roller to move to the main roller. The ring is forged in the radial direction, its cross-section decreases, while the straight 陉 increases. The outer diameter of the ring is always the same with the main roller