公开(公告)号：US09896784B2

公开(公告)日：2018-02-20

申请号：US14467693

申请日：2014-08-25

申请人： SGL AUTOMOTIVE CARBON FIBERS GMBH & CO. KG

发明人： Gerald Ortlepp ,  Renate Luetzkendorf ,  Thomas Reussmann

IPC分类号： D01G15/00 ,  B29B11/16 ,  D04H3/002 ,  D04H3/004 ,  D04H3/015 ,  D04H3/02 ,  D04H3/12 ,  B29K101/12 ,  B29K707/04

CPC分类号： D01G15/00 ,  B29B11/16 ,  B29K2101/12 ,  B29K2707/04 ,  D04H3/002 ,  D04H3/004 ,  D04H3/015 ,  D04H3/02 ,  D04H3/12 ,  Y10T442/10 ,  Y10T442/3715 ,  Y10T442/644 ,  Y10T442/645

摘要： A method produces a flat semi-finished product from a fiber composite material that contains individual carbon fibers, carbon fiber bundles, or a mixture thereof in a defined anisotropic fiber orientation and a thermoplastic matrix material. The anisotropy of the carbon fibers is created in a carding process using the high orientability of admixed non-carbon textile fibers, at least some of the non-carbon textile fibers being thermoplastic, and the carbon fibers having been isolated from waste or used parts. The flat fibrous web which is produced by a carding process and which has a specific orientation of the carbon fibers in the longitudinal direction is compressed into a sheet material under the effect of heat. This enables the use of carbon fibers, for example from production waste, as reinforcing fibers, whereby a less expensive raw material is provided and the carbon fibers are contained in the waste materials are recycled.