DEVICE FOR MOLDING PRODUCTS FROM POWDER Russian patent published in 1994 - IPC

FIELD: powder metallurgy. SUBSTANCE: to holder 1 are installed rings, adapter 2 with split flexible insert 3, punch 6, guiding sleeve 4. The sleeve is subjected to pressure which during its shifting blocks insert 3 and circular conical projection of sleeve engages with conical surfaces of adapter and insert creating spaceless joint. Sleeve is secured by bars 5. Device is filled with powder and punches 7 and 8 are placed in desired position. Application of molding effort results in preliminary molding carried out by punch 7 and finally product is molded by punches 6,7,8. In this case sleeve 4 and adapter 2 with insert 3 overcome flexible resistance of rings and move until finished product of desired size is obtained. EFFECT: enhanced operating capability. 2 cl, 2 dwg