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Title: Method for molding threads in graphite panels

A graphite panel (10) with a hole (11) having a damaged thread (12) is repaired by drilling the hole (11) to remove all of the thread and make a new hole (13) of larger diameter. A bolt (14) with a lubricated thread (17) is placed in the new hole (13) and the hole (13) is packed with graphite cement (16) to fill the hole and the thread on the bolt. The graphite cement (16) is cured, and the bolt is unscrewed therefrom to leave a thread (20) in the cement (16) which is at least as strong as that of the original thread (12).
 [1];  [2]
  1. (Livermore, CA)
  2. (Silverton, OR)
Issue Date:
OSTI Identifier:
United States of America as represented by United States (Washington, DC) LLNL
Patent Number(s):
US 5368792
Contract Number:
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Country of Publication:
United States
method; molding; threads; graphite; panels; panel; 10; 11; damaged; thread; 12; repaired; drilling; remove; 13; larger; diameter; bolt; 14; lubricated; 17; placed; packed; cement; 16; fill; cured; unscrewed; therefrom; leave; 20; strong; original; larger diameter; /264/156/