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Process for preparation of high-performance grade carbon fibres
Process and apparatus for the production of very fine mineral fibres, in particular glass fibres
form a homogeneous gas mixture having a temperature from 600-1500°C.
Process for preparation of high-performance grade carbon fibres
Wagner, W., Nyssen, R., Berkenhaus, D. and van Pey, H-T. (Bayer Aktiengesellschaft, Leverkusen, West Germany) US Pat 4 838
Surface treat ment process for carbon fibres
Sawaki, T., Sasaki, H. and Sadanobu, J. (Teijin Ltd., Osaka, Japan) US Pat 4 840 762
Nakao, F. and Uno, H. (Mitsubishi Rayon Co.Ltd., Tokyo, Japan) US Pat 4 839 006 (13
917 (June 1989)
June 1989)
0.1 to 5 micron diameter fibres are produced by the blast drawing process in which streams of melt issuing from outlet apertures are broken up into fibres in a drawing nozzle. The blast medium is sucked into the drawing nozzle by a pressure gradient. The air stream is directed into a combustion exhaust gas to
The surface treatment subjects a carbon fibre anode to a first electrolyte treatment in aqueous solution of an inorganic acid or a neutral salt at a temperature not less than 60C and then a second treatment in an aqueous solution of an ammonium salt of carbonic acid or of an inorganic alkaline electrolyte.
(20 June 1989) A fine powder from at least one of the oxides and carbides of silicon, aluminium, titanium and boron is attached to a fibre bundle of as-spun pitch fibres. The bundle undergoes an infusibilization treatment and a carbonization treatment so that the fine powder is attached to the precursor fibre bundle without fusion or degradation of the fibre strength and elongation characteristics.
INTERNATIONAL CONFERENCE
Organised bv the Institution of Mechanical Engineers and the Plastics and Rubber Institute
FIBRE REINFORCED COMPOSITES 1990 Engineering with Confidence University of Liverpool, 27-29 March, 1990 The theme Engineering with Confidence reflects the increased availability of performance data which is enabling advanced composites materials to find applications in key areas. The 1990 conference will consider the use of all types of composite material in new and increasingly demanding engineering applications. Areas of specific interest include: thermoplastic matrix composites; metal, ceramic and glass matrix materials; advanced manufacturing techniques; modelling of performance and processing; computer aided design. The conference is aimed at design, materials and production engineers and managers as well as suppliers of materials and processing equipment. Further details from: Ms Julie Brown, Conference Department C400, The Institution of Mechanical Engineers, 1 Birdcage Walk, Westminster, London, SWl H 9JJ. Telephone: 01-222 7899
COMPOSITES. MARCH 1990
187
form a homogeneous gas mixture having a temperature from 600-1500°C.
Process for preparation of high-performance grade carbon fibres
Wagner, W., Nyssen, R., Berkenhaus, D. and van Pey, H-T. (Bayer Aktiengesellschaft, Leverkusen, West Germany) US Pat 4 838
Surface treat ment process for carbon fibres
Sawaki, T., Sasaki, H. and Sadanobu, J. (Teijin Ltd., Osaka, Japan) US Pat 4 840 762
Nakao, F. and Uno, H. (Mitsubishi Rayon Co.Ltd., Tokyo, Japan) US Pat 4 839 006 (13
917 (June 1989)
June 1989)
0.1 to 5 micron diameter fibres are produced by the blast drawing process in which streams of melt issuing from outlet apertures are broken up into fibres in a drawing nozzle. The blast medium is sucked into the drawing nozzle by a pressure gradient. The air stream is directed into a combustion exhaust gas to
The surface treatment subjects a carbon fibre anode to a first electrolyte treatment in aqueous solution of an inorganic acid or a neutral salt at a temperature not less than 60C and then a second treatment in an aqueous solution of an ammonium salt of carbonic acid or of an inorganic alkaline electrolyte.
(20 June 1989) A fine powder from at least one of the oxides and carbides of silicon, aluminium, titanium and boron is attached to a fibre bundle of as-spun pitch fibres. The bundle undergoes an infusibilization treatment and a carbonization treatment so that the fine powder is attached to the precursor fibre bundle without fusion or degradation of the fibre strength and elongation characteristics.
INTERNATIONAL CONFERENCE
Organised bv the Institution of Mechanical Engineers and the Plastics and Rubber Institute
FIBRE REINFORCED COMPOSITES 1990 Engineering with Confidence University of Liverpool, 27-29 March, 1990 The theme Engineering with Confidence reflects the increased availability of performance data which is enabling advanced composites materials to find applications in key areas. The 1990 conference will consider the use of all types of composite material in new and increasingly demanding engineering applications. Areas of specific interest include: thermoplastic matrix composites; metal, ceramic and glass matrix materials; advanced manufacturing techniques; modelling of performance and processing; computer aided design. The conference is aimed at design, materials and production engineers and managers as well as suppliers of materials and processing equipment. Further details from: Ms Julie Brown, Conference Department C400, The Institution of Mechanical Engineers, 1 Birdcage Walk, Westminster, London, SWl H 9JJ. Telephone: 01-222 7899
COMPOSITES. MARCH 1990
187