公开(公告)号：EP1951639A4

公开(公告)日：2009-12-09

申请号：EP06838239

申请日：2006-11-21

申请人： HITCO CARBON COMPOSITES INC

发明人： LEE SAM

IPC分类号： C04B35/52 ,  C04B35/524 ,  C04B35/573 ,  C04B35/80 ,  C04B41/50

CPC分类号： C04B41/87 ,  C04B35/521 ,  C04B35/524 ,  C04B35/573 ,  C04B35/62655 ,  C04B35/6269 ,  C04B35/806 ,  C04B41/009 ,  C04B41/5059 ,  C04B2111/00982 ,  C04B2235/3418 ,  C04B2235/3804 ,  C04B2235/3813 ,  C04B2235/3821 ,  C04B2235/3826 ,  C04B2235/386 ,  C04B2235/421 ,  C04B2235/5244 ,  C04B2235/614 ,  C04B2235/6581 ,  C04B2235/77 ,  C04B2235/96 ,  C04B2235/9607 ,  C04B2235/9684 ,  Y10T428/249924 ,  C04B41/4545 ,  C04B41/4556 ,  C04B35/52 ,  C04B41/455

公开(公告)号：EP1150835A4

公开(公告)日：2004-10-20

申请号：EP99956788

申请日：1999-10-27

申请人： HITCO CARBON COMPOSITES INC ,  UNIV CHICAGO

发明人： ERDEMIR ALI ,  BUSCH DONALD E ,  FENSKE GEORGE R ,  LEE SAM ,  SHEPHERD GARY ,  PRUETT GARY J

IPC分类号： F16C33/24 ,  C04B35/83 ,  F16C33/16 ,  F16D69/02

CPC分类号： F16D69/023 ,  C04B35/83 ,  F16C33/16 ,  Y10T428/249928 ,  Y10T442/2311 ,  Y10T442/2631 ,  Y10T442/2664 ,  Y10T442/273 ,  Y10T442/2984

摘要： A carbon/carbon composite in which a carbon matrix containing a controlled amount of boron or a boron compound is reinforced with carbon fiber exhibits a low coefficient of friction, i.e., on the order of 0.04 to 0.1 at temperatures up to 600°C, which is one of the lowest frictional coefficients for any type of carbonaceous material, including graphite, glassy carbon, diamond, diamond-like carbon and other forms of carbon material. The high degree of slipperiness of the carbon composite renders it particularly adapted for limiting friction and wear at elevated temperatures such as in seals, bearings, shafts, and flexible joints.

公开(公告)号：EP1137867A4

公开(公告)日：2004-10-20

申请号：EP99960477

申请日：1999-11-18

申请人： HITCO CARBON COMPOSITES INC

发明人： WILSON DOUG ,  LEE SAM ,  MATHUR RAJ

IPC分类号： C04B35/83 ,  C04B41/52 ,  C04B41/89 ,  C04B41/90 ,  F01L3/02 ,  F01L3/04 ,  F01L3/00 ,  C04B41/50 ,  C04B41/51

CPC分类号： C04B41/009 ,  C04B35/83 ,  C04B41/52 ,  C04B41/89 ,  F01L3/02 ,  F05C2203/0808 ,  Y10T29/49298 ,  Y10T29/49307 ,  Y10T29/49314 ,  Y10T29/49421 ,  Y10T29/49426 ,  C04B41/5144 ,  C04B41/5138 ,  C04B41/522 ,  C04B41/5155 ,  C04B41/5058

摘要： A method is provided to fabricate a carbon-carbon (C/C) composite valve (15) comprising machining a carbon-carbon composite valve stem having a flared end (13) and a non-flared end (11) from a cured and densified carbon-carbon plate having a sufficient thickness. Applying a plurality of circular fabric plies coaxially onto the non-flared end of the carbon-carbon valve stem and advancing the plies to contact the flared end of the valve stem. Placing the carbon-carbon valve stem contacted with the plurality of circular fabric plies into a die, closing the die, and cure pressing the plies onto the flared end of the carbon-carbon valve stem to form a valve head. Carbonizing the press cured carbon-carbon composite valve, densifying the carbon-carbon composite valve structure, and coating at least one of the carbon-carbon valve stem and valve head with a high temperature resistant coating comprising an inner and an outer layer.