Precision casting and extrusion processing technique of high-carbon chromium bearing steel cycloid wheel

The invention relates to high-carbon chromium bearing steel cycloid wheel precision casting extrusion manufacturing technology. It is the critical component manufacturing technology in the spindle wheel swinging reducer. Its mainly technical features lie in its technological line that the first step, the high-carbon chromium bearing steel is precisely cast to many cycloid wheel blanks, and the remained forging envelope is from 0.3 millimeter to 0.5 millimeter. The second step, isothermal spheroidizing is practiced. The third step, shot blasting is practiced. The forth step, the surface is cleaned out. The fifty step, phosphorization is practiced. The sixth step, cold extrusion is practiced. The seventh step, stree-free annealing is practiced. The eighth step, quench tempering is practiced. The ninth step, the plane, inner hole, shaft pin hole, and curve tooth surface curve of the cycloid wheel are practiced coarse grinding. The tenth step, they are practiced fine grinding. The eleventh step, the cycloid wheel is tested after the fine grinding, and the finished product is put in storage. The technology can economize more than fifty percent of the raw material, sixty percent of the manpower; the economized energy is reached to twenty percent; the improved work efficiency is twice.