PCT No. PCT/IT97/00135 Sec. 371 Date Dec. 1, 1998 Sec. 102(e) Date Dec. 1, 1998 PCT Filed Jun. 16, 1997 PCT Pub. No. WO97/48512 PCT Pub. Date Dec. 24, 1997A dip pipe (1) which feeds by gravity with a molten metal or alloy (2) from a ladle (3) a slab (4) being formed in a thin mold (5) with cooling walls comprises a length of vertical pipe (6) communicating with the upper ladle (3) and downwards ending into a diffuser (8) of flattened shape having two discharge holes (9, 9'). According to the invention the diffuser (8) has a central partition baffle (14) designed to define two channels (16, 16') for the flow and corresponding to said two discharge holes (9, 9'), and the cross-section area (10) of the flow at the highest level of the diffuser is less than the cross-section area (11) of the pipe (6). Furthermore the inner side walls (12, 12') of the diffuser, which are directed to the narrow sides of the thin mold, form each an angle alpha /=7.5 DEG with the vertical axis (13) while departing therefrom in the downward direction, the flow partition baffle (14) narrowing in its lower portion to form two angles beta /=7.5 DEG with vertical axis (13).
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