Process for direct heat treatment of track links for tractors or

Details Process for direct heat treatment of track links for tractors or Process for direct heat treatment of track links for tractors or

1982-06-15

1983-12-06

Skiff, Peter K.

Metal treatment

Compositions

Heat treating

148 123, 148 36, C21D 800

Patent

active

044191529

ABSTRACT:
Process for the manufacture of steel track links for tracked vehicles, comprising forging steel track links at an initial forging temperature of 1150.degree.-1200.degree. C. for 45-60 seconds with a finish forging temperature of 950.degree.-1050.degree. C., subjecting the links thus-produced to initial cooling at a rate of 2.degree.-4.degree. C./s to a temperature of 720.degree.-830.degree. C., maintaining the links at a temperature of 800.degree.-850.degree. C. for 2-3 minutes, again cooling the links at a rate of 10.degree.-15.degree. C./s to a second temperature of 180.degree.-380.degree. C., and maintaining the links at this second temperature for a period of 10-20 minutes, the steel having the following weight percent compositions:

REFERENCES:
patent: 3227586 (1966-01-01), Spencer

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