Magnesia insulated heating elements and method of making the sam

Details Magnesia insulated heating elements and method of making the sam Magnesia insulated heating elements and method of making the sam

1979-02-12

1980-11-18

Mayewsky, Volodymyr Y.

Electric heating

Heating devices

With heating unit structure

29614, 219548, 219553, 252 632, 252512, 338238, 174118, H05B 350

Patent

active

042347866

ABSTRACT:
Compacted, granular, fused magnesia used as thermally-conducting electrical insulation in tubular, electrical resistance elements is substantially improved in thermal conductivity through the addition of 0.1 to 10.0 percent of a glass comprising CaO, B.sub.2 O.sub.3 and optionally Al.sub.2 O.sub.3 and method of making said tubular, electrical resistance elements.

REFERENCES:
patent: 3201738 (1965-08-01), Mitoff
patent: 3369209 (1968-02-01), Edwin et al.
patent: 3477058 (1969-11-01), Vedder et al.
patent: 3622755 (1971-11-01), Vedder
patent: 3682828 (1972-08-01), Keddeinis et al.
patent: 3828296 (1974-08-01), Eiselstein et al.
patent: 4129774 (1978-12-01), Inano et al.

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