Salt bath quenching method and apparatus

Details Salt bath quenching method and apparatus Salt bath quenching method and apparatus

1981-09-21

1984-02-14

Sheehan, John P.

Metal treatment

Compositions

Heat treating

148 20, 148143, 266 44, C21D 148

Patent

active

044314647

ABSTRACT:
The quench severity of a molten salt bath is drammatically increased by adding substantial amounts of water to the bath while it is being vigorously agitated by two impellors submerged in the bath. One impellor causes an upward flow and the other a downward flow of molten salt which results in a quiescent condition at the surface of the quench zone of the bath.

REFERENCES:
patent: 2776134 (1957-01-01), Wingate
patent: 2851263 (1958-09-01), Adam
patent: 3372065 (1968-03-01), Keough
patent: 3399877 (1968-09-01), Birjukoua
patent: 4066477 (1978-01-01), Bockenhoff et al.
patent: 4072298 (1978-02-01), Kranz
patent: 4109897 (1978-08-01), Mehrkam
patent: 4113511 (1978-09-01), Shoemaker
"Metal Process", (Oct. 1953), pp. 122-124.
"American Society for Metals Handbook", (1964), vol. 2, p. 40.

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