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

Abstract

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.

Description

technical field [0001] The invention relates to the processing technology of the key parts in the pin wheel cycloid reducer, in particular to the precision casting extrusion processing technology of the high carbon chromium bearing steel cycloid wheel. Background technique [0002] At present, the processing and manufacturing of high-carbon chromium bearing steel (GCr15) cycloidal wheels in my country's manufacturing industry adopts turning, milling, drilling and boring of GCr15 high-carbon chromium steel element steel or billet after blanking, forging and annealing. The traditional metal cutting process of rough grinding, fine grinding, and finished products after quenching and tempering heat treatment. This processing technology has the following defects: complex process and cumbersome procedures, the entire processing process requires a lot of metal processing equipment, which consumes man-hours and materials, consumes a lot of energy, and the consumption ratio of material...

AI Technical Summary

Problems solved by technology

The processing technology has the following defects: the process is complicated, the procedure is cumbersome, and the whole processing process requires a lot of metal processing equipment, which consumes both man-hours and materials, and consumes a lot of energy. The consumption ratio of materials and finished products is more than 2:1, so the processing cost is high.

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