CPC F27D 7/06 (2013.01) [C04B 35/64 (2013.01); C04B 35/83 (2013.01); F16D 65/126 (2013.01); F27D 19/00 (2013.01); C04B 2235/614 (2013.01); C04B 2235/652 (2013.01); C04B 2235/656 (2013.01); C04B 2235/658 (2013.01); C04B 2235/6567 (2013.01); C04B 2235/6581 (2013.01); C04B 2235/6582 (2013.01); C04B 2235/661 (2013.01); C04B 2235/664 (2013.01); C04B 2235/72 (2013.01); C04B 2235/725 (2013.01); C04B 2235/728 (2013.01); C04B 2235/77 (2013.01); F16D 2200/0052 (2013.01); F16D 2250/0023 (2013.01); F27D 21/0014 (2013.01); F27D 2007/063 (2013.01); F27D 2019/0003 (2013.01); F27D 2019/0031 (2013.01)] | 11 Claims |
1. A method of removing contamination from at least one of a furnace and an intermediate product of a carbon/carbon part within the furnace comprising:
introducing a gaseous reducing agent into the furnace at a first temperature;
bringing the furnace to a second temperature to cause the gaseous reducing agent to reduce a contaminate, the second temperature being greater than the first temperature;
substantially removing the gaseous reducing agent from the furnace by at least one of creating a first pressure differential and creating a first purging gas flow;
bringing the furnace to a third temperature that is greater than the second temperature and decreasing a pressure within the furnace, after removing the gaseous reducing agent, to vaporize the contaminate; and
removing the vaporized contaminate from the furnace by at least one of creating a second pressure differential or flowing a second purging gas through the furnace.
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