| 摘要 |
PURPOSE:To sufficiently execute the cooling of a die without reducing the temp. of a slab by making a shield plate freely movably in the vertical direction by providing it at the boundary part of between upper and lower dies and preventing the cooling water of one part of a die coming into contact with the other part of the die. CONSTITUTION:In case of performing the width contraction of a slab 1 by each one pair of upper and lower dies 2, 3 fixed to a block 10, a movable shield plate 11 is set up at the boundary part of an upper die 2 and lower die 3. This shield plate 11 is composed of stationary member 12 and movable members 13, 14, the latter can be adjusted so as to become at a constant azimuth by a hinge and the movable member 14 is linked to a handle 17 via wires 18, 19. The slab 1 is subjected to width reducing by the lower die 3 by this composition and at the time when the upper die 2 is cooled by a cooling water header 4 the movable members 13, 14 are rotated by the operation of the handle 17 and a groove part of a fixed shape is formed in the upper part direction to receive the cooling water. In case of cooling the lower die 3 by a cooling water header 5 vice versa the cooling water is received by forming a fixed shape groove part in the lower part direction by the movable members 13, 14. |
