Method for jet gas impingement quenching

Details Method for jet gas impingement quenching Method for jet gas impingement quenching

1987-05-19

1990-05-01

Lechert, Jr., Stephen J.

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

148146, 266 81, 266114, 266134, C21D 154

Patent

active

H00007773

ABSTRACT:
Method and apparatus is provided for quenching a metal workpiece by an inert gas at ambient temperature. Jet streams of gas coolant at high velocity and flow rates are directed in a balanced arrangement against opposing workpiece sides and the jets are correlated to the thickness of the workpiece sections to achieve uniform cooling rates with minimal workpiece distortion. A flow straightening grid in combination with a variable sized aperture plate achieves the desired jet streams in an adjustable plenum arrangement which directs the streams against the top and bottom surfaces of the workpiece.

REFERENCES:
patent: 3962799 (1976-06-01), Lapointe et al.
patent: 4440584 (1984-04-01), Takeshige et al.
patent: 4610435 (1986-09-01), Pfau et al.
patent: 4634103 (1987-01-01), Schmetz et al.
patent: 4653732 (1987-03-01), Wunning et al.

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