A FAST PROCESS FOR THE PRODUCTION OF FIBER PREFORMS

A thermomechanical pressing ("TMP") method for obtaining rapidly a high density (1.2 g/cm or higher) carbon/carbon composite preform from any carbon fiber including PAN-based carbon fibers and industrial coaltar or petroleum pitches (including synthetic derivatives) having a melting point...

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Bibliographische Detailangaben
Hauptverfasser:	DEMIN, ALEKSANDR VIKTOROVICH, PENKOV, IGOR ALEXANDROVICH, KOSTIKOV, VALERY IVANOVICH, KULAKOV, INNOKENTII VICTOROVICH
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ARTIFICIAL STONE BLASTING BRAKES CEMENTS CERAMICS CHEMISTRY CLUTCHES COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE COUPLINGS FOR TRANSMITTING ROTATION ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING LIME, MAGNESIA MECHANICAL ENGINEERING METALLURGY REFRACTORIES SLAG THERMAL INSULATION IN GENERAL TREATMENT OF NATURAL STONE WEAPONS
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Beschreibung
Zusammenfassung:	A thermomechanical pressing ("TMP") method for obtaining rapidly a high density (1.2 g/cm or higher) carbon/carbon composite preform from any carbon fiber including PAN-based carbon fibers and industrial coaltar or petroleum pitches (including synthetic derivatives) having a melting point m.p.=80-350 DEG C. Green preforms may be prepared from mixtures of carbon fibers and pitch, and the resulting mixture is formed to impart a cylindrical shape to the green preform. The green preform is charged into a metallic mold where it is heated, stabilized, pressurized for a period of time, and cooled.