METHOD FOR PRODUCING THERMOSETTING BINDING COMPOSITE (VERSIONS) Russian patent published in 2001 - IPC

FIELD: production of composite materials with thermosetting binder. SUBSTANCE: method involves injecting hot dried gas for activating thermosetting binder, with air being used as hot dry gas in preferred version; providing two-staged pressing process, with first stage including injection of hot gas and prepressing charge in first press, and second stage including transferring charge into second hardening press, without hot gas injection process, hardening and cooling charge. Apparatus has platen press mounted on plate. Platen press has upper and lower plates with hot air injection nozzles distributed over surface of each plate. Plates are spaced one from the other and embraced at sides with air-permeable protective enclosure so as to define compression chamber for retaining basic material under pressing process. According to other version, apparatus has hardening press. Method allows materials containing thermosetting binder and large particles of filler to be produced. EFFECT: increased efficiency and simplified method. 30 cl, 37 dwg, 2 tbl