Treating molten metal with a mixture of a cryogenic fluid and so

Details Treating molten metal with a mixture of a cryogenic fluid and so Treating molten metal with a mixture of a cryogenic fluid and so

1975-06-30

1978-06-06

Kendall, Ralph S.

Compositions

Frost-preventing, ice-thawing, thermostatic, thermophoric,...

62 8, 62 45, 75 96, 164 66, 148 206, 148 28, 148125, 252 9, 252 62, 252 68, B22D 2704

Patent

active

040935531

ABSTRACT:
A surface of molten metal is covered with a polyphase mixture of a cryogenic fluid and at least one additional constituent in the form of particles, the particles having a size less than 50 microns and forming a homogeneous and stable suspension in the boiling liquefied gas. The particles may be metal or metal oxide or glass or carbon or vegetable or mineral oil, and serve to reduce radiative heat losses from the metal by reflection and/or to serve as a lubricant of the metal in a mold.

REFERENCES:
patent: 3393152 (1968-07-01), Smith et al.
patent: 3416977 (1968-12-01), Rein
patent: 3798919 (1974-03-01), Hershner
patent: 3868987 (1975-03-01), Galey et al.

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