DEVICE FOR OBTAINING WIRE AND CHANNELS FROM NON-COMPACT MATERIALS Russian patent published in 2011 - IPC B22F3/18 B22F5/12 B21C37/04 B21B1/10 

FIELD: metallurgy.

SUBSTANCE: device includes heated container, screw with drive and two rolls with similar diameters one of which is provided with groove, and the other one is provided with projection, which form closed pass at the outlet of which a matrix with hold-down device is installed. Between container and rolls there located is antechamber having inner cavity with variable cross section and consisting of section of rectangular cross section the dimensions of which do not exceed the pass height as to the height at cross point of maximum diameters of roll with groove and roll with projection, and as to width they correspond to width of closed pass, and section of conical cross section, the minimum sizes of which coincide with sizes of section of rectangular cross section, and maximum diameters at the boundary with container are determined with diameter on the basis of the following: where D - diameter of antechamber at the boundary with container; b - width of closed pass; h_min - height of closed pass in the smallest cross section.

EFFECT: use of the device allows improving the quality of items owing to improving mechanical properties and enlarging manufacturing capabilities.

2 cl, 2 dwg, 1 tbl