| 摘要 |
FIELD: engines and pumps. ^ SUBSTANCE: device for processing comprises puncheon and upper and lower semi-matrices fixed on base. Semi-matrices are arranged, accordingly, with vertical and horizontal intersecting channels. Lower semi-matrix consists of two parts, which may rotate in opposite directions by means of rigidly fixed gear wheels. Horizontal channel is arranged with cross section, having shape that differs from circular one. At the outlet of horizontal channel, coaxially to it, replaceable orifice is installed. Orifice is rigidly fixed to lower semi-matrix and has hole, which is less than outlet hole of horizontal channel provided that internal pressure in billet makes 5-10 GPa. Vertical channel has inlet part. Area of this part cross section exceeds area of vertical channel cross section 2-10 times. Horizontal channel has inlet cylindrical part. Diameter of cross section D of this part is equal to diameter of vertical channel cross section, and length A makes (0.1-2) D. Parts of lower semi-matrix are installed with clearance in horizontal channel equal to 0.05-0.5 mm. ^ EFFECT: improved mechanical properties and quality of processed billets. ^ 2 dwg |
