LIQUID METAL CASTING PIPE, ASSEMBLY OF PIPE AND METAL FRAMEWORK AND METAL FRAMEWORK Russian patent published in 2016 - IPC B22D41/50 

FIELD: metallurgy.

SUBSTANCE: invention relates to metallurgy. Pipe (10) limits pouring channel (12) with pouring axis (X) and contains part (14) downstream the liquid metal and top part (16). Top part (16) includes first volume corresponding the supplemental part of volume (V₁), having shape of axisymmetric truncated cone, its axis is pouring axis (X), its generatrix makes angle α over 5° with pouring axis (X). Small base (22) of volume (V₁) of truncated cone corresponds to the surface of crossing of bottom transverse plane with pouring channel (12). Top part (16) includes second volume (V₂) limited by surface created during rotation of the isosceles trapezium (24) around the pouring axis (X). Small base (26) of the trapezium is in top transverse plane (P_sup) and has centre (C) of top end (20) of pipe as centre, and width (E) of small base is equal to half of diameter (D_out) of output hole. Large base (28) of the trapezium is in bottom transverse plane (P_inf), and two non-parallel sides (30, 32) of the trapezium make angle (β) below 30°.

EFFECT: limitation of liquid metal spattering during pouring.

7 cl, 8 dwg