Method of making a composite article for rapid heating

Details Method of making a composite article for rapid heating Method of making a composite article for rapid heating

1975-01-06

1976-06-29

Kendall, Ralph S.

Coating processes

With post-treatment of coating or coating material

Heating or drying

427431, 427438, 29191, 29197, 295274, 123191S, C23C 108

Patent

active

039670139

ABSTRACT:
A composite article capable of initially rapid heating and subsequent continuous rapid transfer of heat. The article has a core of material, preferably copper, having a minimum first predetermined value of thermal conductivity and an outer surface portion of metallic material of certain compositions such as aluminum, aluminum-rich alloy, nickel, or nickel-rich alloy. The composite article has oxidation resistance at elevated tempratures equivalent to AISI type 303 stainless steel and has a bulk thermal conductivity not less than a second predetermined value. In one embodiment the article is cup-shaped for defining an auxiliary compartment or pre-chamber for a combustion chamber of an internal combustion engine. The method includes immersing the core in a bath of molten aluminum or aluminum-rich alloy, removing the article, and heating to a temperature of substantially 800.degree.C.

REFERENCES:
patent: 1381085 (1921-06-01), Dantsizen
patent: 2453772 (1948-11-01), Whitfield
patent: 2741229 (1956-04-01), Stump
patent: 2918388 (1959-12-01), Moller
patent: 2932289 (1960-04-01), Witzky
patent: 2969050 (1961-01-01), Greirer et al.
patent: 3044454 (1962-07-01), Sutton
patent: 3892216 (1975-07-01), Danis

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