COMPOSITE REINFORCING THREAD, PREPREG, TAPE FOR 3D PRINTING AND INSTALLATION FOR PREPARING SAME

• Main Authors: VASILIEV VALERY VITALIEVICH, AZAROV ANDREY VALERIEVICH, SALOV VLADIMIR ALEKSEEVICH, RAZIN ALEXANDR FEDOROVICH
• Format: Patent
• Language: Chinese; English
• Published: 21.12.2018
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; CHEMISTRY; COMPOSITIONS BASED THEREON; GENERAL PROCESSES OF COMPOUNDING; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; NATURAL OR ARTIFICIAL THREADS OR FIBRES; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE; SPINNING; TEXTILES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

The invention relates to the field of composite materials and may be used for preparing parts and structures to be used in aviation and rocket/space technology, medicine, automobile manufacturing, etc. A composite reinforcing thread contains a roving, made of reinforcing fibers saturated with a thermoreactive binder, having a cross-section in the form of a circle with a diameter of 0.1-0.7mm or inthe form of an ellipse with an eccentricity of 1-2 and a larger diameter of 0.1-0.7mm. The saturated roving is subjected to temperature processing until the thermoreactive binder is fully set. A prepreg is produced from the thread by adding a thermoplastic binder. A tape is produced by connecting a thread or prepreg by means of connection elements made of a thermoplastic material. The thread is produced in an installation containing a bobbin creel, onto which is installed a bobbin with a roving made of reinforcing fibers or reinforcing fibers and functional fibers, a saturating device, two thermal processing chambers