TOOL FOR CRUSHING MINERAL AND ARTIFICIAL MATERIALS Russian patent published in 1997 - IPC

FIELD: rock crushing equipment. SUBSTANCE: tool has body with socket and insert made of hard-alloy material. Insert is made up of working part for interaction with material to be crushed and tail-piece. Tail-piece is in the form of stepped body of revolution and is installed coaxially in body socket with clearance for location of solder and creation soldered joint between them. At least part of outer contour of insert tail-piece in cross-section by plane passing through longitudinal axis of symmetry is inscribed in curve of configuration which corresponds to form of generant of surface of meniscus created by molten solder in body socket. EFFECT: high efficiency. 23 cl, 12 dwg