Аңдатпа
There was investigated influence of morphology of graded waste chips from brasses L63 on properties of bars and wires obtained by means of chipless shaping. For research particles of chips were divided on 3 types: spiral, flaked and sawing. Any one of them was heated to temperature 450±5 °С and briquetted on the forgemaster. Afterwards briquettes were heated to temperature of 850 °C and extruded by means of direct method with resulting of bars diameters 8 and 6 mm. Herewith elongating ratios were equal to 32 and 56, correspondingly. Pressed bars were subject to drawing, as consequence diameter of wire was equal to 2 and 3 mm. Examination of bars and wire properties showed that waste chips from brasses L 63 could be raw materials during manufacturing of half-prepared products for hot extrusion and subsequent wire drawing. There was established that morphology of chips particles has a little effect on fabrication characteristics of briquettes, as well as on mechanical characteristics of pressed bars and obtained by means of drawing wire, mechanical properties of which meet demands of GOST 1066-90.