JPS6448642A - Twin roll type continuous casting equipment - Google Patents

Abstract

PURPOSE:To eliminate the need for a shield plate and to prevent development of burr by arranging a main guide part containing with surfaces of convex type roll and concave type roll and side guide parts having larger width than thickness of a cast slab at both ends and positioning at inner part from both end of the concave type roll. CONSTITUTION:Molten metal 5 is supplied into pouring basin 31 through the guide 4 for casting and guided to a gap 3 for casting while cooling and solidifying at the contacting part with the roll surfaces rotating to the arrow mark directions of both rolls 1, 2 and formed as the plate having cross section of arc-state to become the cast slab 51. As tip 45 of bottom side 41 of the guide 4 for casting is approached to the surface of the concave type roll 2, the molten metal 5 does not leak. The width of the guide 4 for casting is smaller than length of axial direction of the gap 3 for casting and both side plates 42, 43 thereof are positioned at inner part from both end large diameter parts 22, 23 of the concave type roll 2. As these both end large diameter parts achieve the side shield function, the molten metal 5 does not leak. By this method, the development of burr at both sides of the rolls 1, 2 and the cast slab 6 does not occur and wearing damages of roll and guide are prevented.