Grinding rod and method for production thereof

Details Grinding rod and method for production thereof Grinding rod and method for production thereof

C - Chemistry, Metallurgy

21

D

148/54, 241/96

C21D 9/36 (2006.01) B02C 17/20 (2006.01) C21D 1/18 (2006.01) C21D 9/00 (2006.01)

Patent

CA 1201961

ABSTRACT OF THE DISCLOSURE A rod having end portions of a hardness characterisitic of a pearlitic microstructure, the remainder comprising an annular outer region and a core region, at least the outer region having a surface hardness greater than Rockwell C 50. A method of producing heat treated rods involves passing a heated rod through at least one quench zone, initiating a liquid quench after the leading end of the rod has emerged from the quench zone and turning off the liquid quench before the trailing end of the rod enters the quench zone.

403629

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