| 摘要 |
FIELD: metallurgy.SUBSTANCE: invention refers to metallurgy. Nozzle 30 includes on upper end 32 the plate 34 with upper surface 16 and lower surface and pipe 38. Axis 40 of pipe 38 is orthogonal to upper surface 16 of plate 34. Pipe 38 passes from lower surface of plate 34 to lower end 36 of the nozzle. Nozzle 30 includes a pouring channel with inlet orifice hole 18 passing through surface 16 of plate 34, passage opening in plate 34 and passage opening 50 in pipe 38. Lower end 36 of the pipe is closed and an outlet of the pouring channel passes near lower end 36 through outlet holes 46, 46'. Outlet holes 46, 46' are made in side walls of pipe 38 and located symmetrically on both sides of axis 40. Orifice hole of plate 34, passage openings of the plate and the pipe and outlet holes are located in a liquid connection. Axis 48 of outlet holes is orthogonal to axis 40 of pipe 38. Orifice hole 18 is elongated and has major axis 42 and minor axis 44. Minor axis 44 is parallel to axis 48 of outlet holes. The pouring nozzle has a transition from an elongated cross section to a round cross section at the distance of 20 to 50 mm from upper surface 16 of plate 34.EFFECT: quicker closing of a pouring channel.5 cl, 4 dwg |
