TIP MADE OF CAKED CARBIDE Russian patent published in 1995 - IPC

FIELD: mining industry. SUBSTANCE: tip made of caked carbide has a front end for interacting with the undercoat and a basis for attaching to the working head made of black metal. The tip has the shape of a rotation body. A ring surface and a pit whose form corresponds to that of the protrusion at the front end of the working head are disposed on the tip base. The tip has a fixture for interacting with the front end of the working head and for fixing the distance between the tip and the working head during the forming of the soldered joint between them with the set thickness of the solder layer in the cross-section. The fixture is made in the shape of a group of main protrusions located on the pit surface at a certain distance from each other and a group of additional protrusions disposed on the ring surface at a certain distance from each other. EFFECT: simpler design. 14 cl, 10 dwg, 1 tbl