| 摘要 |
<p>A reducing belt-type continuous casting apparatus continuously casts a sheet-bar billet through a casting space formed by the combination of a pair of metal belts which are disposed facing each other and rotatably move such as to form longer sides and a pair of tapered fixed side plates which are disposed between the metal belts and closely contact the same so as to form shorter sides. The side plates for forming shorter sides are designed in a configuration such that the following conditions are satisfied: d = 5 to 30 mm, D >= 60 mm, D/d <= 16, υ <= 30o; υ = tan-1(D - d)/H, thereby preventing the production of defects on the side surfaces of the produced billet. Further, as the metal belts are employed one having the yield strength Sy(kg/mm2) and the belt thickness t(mm) which satisfy the following conditions: Sy >= 10,500 t/Dr, 0.4 <= t <= 2.5, where Dr represents the guide roll diameter (mm) thereby preventing failure in the billet quality and also preventing casting accidents due to deformation of the belts.</p> |
