Invention Grant
- Patent Title: CVI followed by coal tar pitch densification by VPI
- Patent Title (中): CVI随后由VPI煤焦油沥青密实化
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Application No.: US13075363Application Date: 2011-03-30
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Publication No.: US08454867B2Publication Date: 2013-06-04
- Inventor: Mark L. La Forest , Neil Murdie , Allen H. Simpson
- Applicant: Mark L. La Forest , Neil Murdie , Allen H. Simpson
- Applicant Address: US NJ Morristown
- Assignee: Honeywell International Inc.
- Current Assignee: Honeywell International Inc.
- Current Assignee Address: US NJ Morristown
- Agency: Shumaker & Sieffert, P.A.
- Main IPC: C01B31/00
- IPC: C01B31/00

Abstract:
A method for the manufacture of carbon-carbon composite brake discs comprises (a) heat treating a carbon-carbon composite preform in the shape of a brake disc at 1600-2540° C., (b) directly following heat treating, subjecting the heat-treated preform to Chemical Vapor Deposition/Chemical Vapor Infiltration processing, (c) infiltrating the preform with an isotropic low to medium char-yield pitch derived from coal tar, employing Vacuum Pitch Infiltration processing or Resin Transfer Molding Processing, (d) stabilizing and carbonizing the pitch-infiltrated preform (e) machining the surfaces of the resulting carbonized preform, and (f) repeating steps (c) through (e) at least two additional times to raise the density of the carbon-carbon composite preform to at least approximately 1.75 g/cc.
Public/Granted literature
- US20110195182A1 CVI FOLLOWED BY COAL TAR PITCH DENSIFICATION BY VPI Public/Granted day:2011-08-11
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