TUNDISH FOR CONTINUOUS CASTING
PROBLEM TO BE SOLVED: To increase the separation-removal function of inclusions in a molten steel while improving the yield of the steel. SOLUTION: On the bottom face 13 of a tundish 1, a flat part 30 forming a flat shape at least in the lower part of an injection nozzle 20 is formed. The corner par...
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| creator | TAKEZAKI KAZUMASA FUJI TAKEHIKO SHIGEMATSU KIYOSHI FUCHIGAMI KATSUHIRO |
| description | PROBLEM TO BE SOLVED: To increase the separation-removal function of inclusions in a molten steel while improving the yield of the steel. SOLUTION: On the bottom face 13 of a tundish 1, a flat part 30 forming a flat shape at least in the lower part of an injection nozzle 20 is formed. The corner parts between the flat part 30 and the long-side walls 10, 10 have curved parts 31, 31 curved so as to be projected to the external side. The flat part 30 and the curved part 31 are formed along the long-side walls 10 of the tundish 1, and the minimum curvature radius R(m) of the curved part 31 satisfies inequality: 0.1≤R≤(W-D)/2 [wherein W denotes a distance (m) between the intersections P, P between the tangent L1of the long-side wall 10 in the position of the maximum molten metal surface M1within the tundish 1 and the extension L2of the flat part 30; and D denotes the inside diameter (m) of the injection nozzle 20]. COPYRIGHT: (C)2011,JPO&INPIT |
| format | Patent |
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SOLUTION: On the bottom face 13 of a tundish 1, a flat part 30 forming a flat shape at least in the lower part of an injection nozzle 20 is formed. The corner parts between the flat part 30 and the long-side walls 10, 10 have curved parts 31, 31 curved so as to be projected to the external side. The flat part 30 and the curved part 31 are formed along the long-side walls 10 of the tundish 1, and the minimum curvature radius R(m) of the curved part 31 satisfies inequality: 0.1≤R≤(W-D)/2 [wherein W denotes a distance (m) between the intersections P, P between the tangent L1of the long-side wall 10 in the position of the maximum molten metal surface M1within the tundish 1 and the extension L2of the flat part 30; and D denotes the inside diameter (m) of the injection nozzle 20]. 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SOLUTION: On the bottom face 13 of a tundish 1, a flat part 30 forming a flat shape at least in the lower part of an injection nozzle 20 is formed. The corner parts between the flat part 30 and the long-side walls 10, 10 have curved parts 31, 31 curved so as to be projected to the external side. The flat part 30 and the curved part 31 are formed along the long-side walls 10 of the tundish 1, and the minimum curvature radius R(m) of the curved part 31 satisfies inequality: 0.1≤R≤(W-D)/2 [wherein W denotes a distance (m) between the intersections P, P between the tangent L1of the long-side wall 10 in the position of the maximum molten metal surface M1within the tundish 1 and the extension L2of the flat part 30; and D denotes the inside diameter (m) of the injection nozzle 20]. COPYRIGHT: (C)2011,JPO&INPIT</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES PERFORMING OPERATIONS POWDER METALLURGY TRANSPORTING |
| title | TUNDISH FOR CONTINUOUS CASTING |
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