| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a mold for continuous casting which can manufacture a cast piece favorable in quality by suppressing a delay of the coagulation of the cast piece. <P>SOLUTION: A swollen part 22 with a water level position of molten steel as an upper position P1 and a part apart from the upper position toward a lower part by 300 mm or longer as a lower position P2 is formed at the side 21 of a molten steel contact face 21 of a cooling member 12 of the mold 10 for continuous casting, a vertical cross section of the swollen part is formed of three or more and not more than eight linear parts L1 to L3 which are continuous to the lower position from the upper position, angles θ1, θ2 formed of the adjacent linear parts are brought into a range of not smaller than 174° and not larger than 179.97°, the maximum height h of the swollen part with a straight line L4 connecting the upper position and the lower position as a bottom side is brought into a range of not lower than 0.2 mm and not higher than 5 mm, water introduction grooves 17 to 19 between adjacent fastener 15 in the vertical direction at the rear face side of the cooling member are formed wide in width, and flat cross-sectional areas of the water introduction grooves 17, 19 at side portions of the fastener are brought into a range of minus 20% to plus 20% of the flat cross-sectional area of the water introduction groove between the fastener in the vertical direction. <P>COPYRIGHT: (C)2012,JPO&INPIT |
