FIELD: metallurgy.
SUBSTANCE: invention concerns the metallurgy field. Particularly it concerns methods of obtaining a continuous carbon fiber with heightened modulus of elasticity. In terms of comprehensive acrylic fiber which have titer not less than 50 tex it is prepared heavy acrylic plait which has a titer 800 or 1200 tex. After that it is heatset in isometric conditions in air atmosphere by following stepped rate: 180°C - 1 hour, 200°C - 1 hour, 220°C - 1 hour, 240°C - 4 hour till the density 1.43-1.45 g/cm3. Further it is implemented high-velocity thermomechanical treatment of received acrylic plait in isometric conditions in nitrogen medium at temperature 2200°C during approximately 10 sec rate of temperature rise 1900-2000 deg/min. Then carbonic plait is additionally treated in argon medium at temperature more than 3000°C.
EFFECT: usage of this invention allows to improve the production volume of high-modular carbon fiber at the same manufacturing capacity.
2 tbl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD TO PRODUCE HIGH-MODULUS CARBON FIBERS | 2008 |
|
RU2372423C2 |
| METHOD OF BINDING FIBROUS PAN MATERIAL WHEN CARRYING OUT STEPS OF PRODUCING CARBON FIBRE THEREFROM | 2013 |
|
RU2534794C2 |
| METHOD FOR PRODUCTION OF CARBON TEXTILE FILLER FOR COMPOSITE MATERIALS | 0 |
|
SU1772241A1 |
| METHOD AND APPARATUS FOR FABRICATING CARBON FIBERS | 1993 |
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RU2089680C1 |
| FIBROUS CARBON MATERIAL PRODUCTION PROCESS | 2006 |
|
RU2314995C2 |
| LABORATORY LINE OF PRODUCTION AND RESEARCH OF CARBON FIBRES | 2016 |
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RU2639910C1 |
| METHOD FOR PRODUCING OF THERMALLY- AND FIRE-RESISTANT TEXTILE MATERIALS | 2006 |
|
RU2310701C1 |
| METHOD FOR PRODUCING THIN HIGH-STRENGTH CARBON FILAMENTS | 1996 |
|
RU2126855C1 |
| METHOD FOR OXIDATIVE STABILISATION OF POLYACRYLONITRILE FIBRES FILLED WITH CARBON NANOTUBES | 2013 |
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RU2534779C1 |
| METHOD FOR OXIDATION OF POLYACRYLONITRILE THREADS IN PRODUCTION OF CARBON FIBERS AND DEVICE FOR ITS REALIZATION | 1993 |
|
RU2042753C1 |
