Carbon fiber, carbon composite and furnace purification by hydrogen reduction followed by thermal heat treatment
AssigneeGoodrich Corporation
InventorWEIMING LU
Life of this patent
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Abstract
A method of manufacture for a carbon/carbon part including a method to remove contamination from an intermediate product of the carbon/carbon part and furnace utilizing a gaseous reducing agent hydrogen gas to reduce the contaminates, thereby causing the contaminates to transition to a gaseous state at relatively lower temperatures. A method to remove contamination from an intermediate product of the carbon/carbon part and furnace utilizing hydrogen gas to reduce the contaminates, thereby causing the contaminates to transition to a gaseous state at relatively lower temperatures.
Claims20
A method of manufacturing a carbon/carbon brake disk comprising:
- forming a carbon preform,
- placing the carbon preform within a furnace,
- introducing a gaseous reducing agent into the furnace, and
- carbonizing the preform.
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;
- and
- 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.
A method of removing contamination from at least one of a furnace an intermediate product of a carbon/carbon part within the furnace comprising:
- introducing hydrogen gas into the furnace, allowing the hydrogen gas to reduce a contaminate in the carbon/carbon part;
- and
- substantially removing the hydrogen gas from the furnace by at least one of creating a first pressure differential and creating a first purging gas flow.
Dependencies are inferred from the claim text.