Preparation method of revolving race

The invention discloses a preparation method of a rotary seat ring. The preparation method comprises the following steps: obtaining at least one section of long strip plate; pretreating each section of long strip plate; welding the pretreated long strip plates to obtain a closed-loop long strip plate; and cutting a ring hole in the closed-loop strip plate to obtain the rotary seat ring. The process flow can be reduced, the preparation efficiency can be improved, the requirement for the length of raw materials can be lowered, and the raw material utilization rate is increased. 本发明公开了一种回转座圈的制备方法，包括以下步骤：获取至少一段长条板；预处理各段长条板；焊接预处理后的各段长条板，获得一个闭环长条板;在闭环长条板上切割圈孔，获得回转座圈。本发明不仅能够减少工艺流程提高制备效率，还能降低对原材料长度的要求，提高原材料利用率。