Carbon heating element and method of manufacturing the same
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United States of America Patent
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Dec 31, 2002
Grant Date -
N/A
app pub date -
Oct 27, 2000
filing date -
Apr 28, 1998
priority date (Note) -
Expired
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Abstract
A carbon heating element of excellent durability and thermal shock resistance, usable even in a special environment, for example, even in a strong oxidizing chemical, and having a sufficient capability of generating heat with smaller power consumption. The carbon heating element is formed by covering a carbon material, such as carbon fiber or a carbon fiber cloth with quarts glass, making the interior of the quartz glass vacuous or setting the pressure of the interior of the quartz to not higher than 0.2 atm. with substituted inert gas, and melt-scal the quartz glass.
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