Processing wire rod

Details Processing wire rod Processing wire rod

1976-01-06

1977-09-06

Stallard, W.

Metal treatment

Compositions

Heat treating

134 14, C21D 952

Patent

active

040465993

ABSTRACT:
Steel wire rod leaving the last stand of a rolling mill is quenched to between 850.degree. C and a temperature corresponding to the nose of the curve representing the start of the transformation of austenite to ferrite-pearlite plotted with respect to time and temperature. The wire rod is then subjected to a second cooling while in the form of loose turns passing along a given path. The variation of the temperature of the wire rod along this path is observed, and the position is detected at which a temperature increase occurs owing to recalescence. At this position the wire rod is subjected to supplementary cooling.

REFERENCES:
patent: 2673820 (1954-03-01), Morgan
patent: 2994328 (1961-08-01), Lewis

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