NOVELTY - A conveyance portion (T, T1-T4) of silicon melt solution (9) comprises pipe portion (2) consists of carbon/carbon (C/C) composite material formed in groove-shaped or cylinder-shaped end with wall thickness of 1-10 mm, entrance opening (3) formed in opening side, flat side part formed in outer peripheral part, exit opening (4) which is opened toward side surface direction in flat side part, and direction change portion (1) consists of undercurrent guide part (5) in bottom face side which changes flow direction of silicon melt solution flowing in from entrance opening toward exit opening.    USE - A conveyance portion of silicon melt solution for manufacture of high purity silicon used as raw materials for semiconductor element and solar cell.    ADVANTAGE - Conveyance portion can be repeatedly used without leakage of silicon melt solution, has excellent long-term durability, and suppresses occurrence of splash of silicon melt solution in conveyance.    DETAILED DESCRIPTION - A conveyance portion (T, T1-T4) of silicon melt solution (9) comprises pipe portion (2) consists of carbon/carbon (C/C) composite material formed in groove-shaped or cylinder-shaped end with wall thickness of 1-10 mm, entrance opening (3) formed in opening side, flat side part formed in outer peripheral part, exit opening (4) which is opened toward side surface direction in flat side part, and direction change portion (1) consists of undercurrent guide part (5) in bottom face side which changes flow direction of silicon melt solution flowing in from entrance opening toward exit opening, wherein while undercurrent guide parts of direction change portion overlap above silicon melt solution flow direction upstream of pipe portion during use, direction change portion is arranged so that flow direction of silicon melt solution in undercurrent guide part approximately corresponds to silicon melt solution flow direction of pipe portion, and flow of silicon melt solution flowing in direction change portion from entrance opening is guided to silicon melt solution flow direction of pipe portion.    DESCRIPTION OF DRAWING(S) - The drawing shows an isometric view of a conveyance portion of silicon melt solution using direction change portion and pipe portion.    Direction change portion (1)    Pipe portion (2)    Entrance opening (3)    Exit opening (4)    Undercurrent guide part of direction change portion (5)