Atmosphere carburizing at 927° C (1700° F) for distortion control
Tóm tắt
A reduction in the magnitude of out-of-round (OOR) and improved flatness of heat treated but unfinished tapered roller bearing components was achieved by carburizing parts at temperatures less than 927°C (1700°F) in a controlled, integral-quench process. Distortion results from this study are compared to conventionally processed components. Reasons for reduced distortion levels achieved are discussed in terms of temperature uniformity, atmosphere control, quenchant temperature, quenchant flow and postquench processing steps, product fixturing, and product orientation in the furnace load.
Tài liệu tham khảo
N. Giordano:Industrial Heating, June 1986, pp. 28–36.
D. Milam:Heat Treating, 1987,12, pp. 31–35.
R. Kern:Heat Treating, 1988,3, pp. 17–21.
G.E. Hollox and R.T. Van Bergen:Heat Treatment of Metals, 1978. 2, pp. 27–31.
Private Communication with D. Milam, The Timken Company (1988).
Private Communication with K. Nanba, Tokyo Heat Treating Co. (1988).