| 摘要 |
PURPOSE:To eliminate the cold shot to be produced in the surface layer part of an ingot in a horizontal and continuous casting installation by providing a peening device on the down stream side of a casting mold and imparting impact force on the surface layer part of the ingot. CONSTITUTION:Peening devices 4, 5 for top, bottom and side surfaces are provided on the down stream side of a casting mold. The device 4 for the top and bottom surfaces is constituted of a pair of upper and lower bodies 12 installed to a carriage 11 traveling on a rail 9 provided in parallel with an ingot 8 above the ingot 8 and needle bundles 13 mounted to the bodies 12. The needle bundles are moved back and forth about 2,000-4,000 times per minute at about 5-20mm. stroke in a vertical direction by compressed air. The device 5 for the side surfaces is constituted of bodies 17 mounted to a carriage 16 traveling on a rail 14 in parallel with both sides of the ingot 8 and needle bundles mounted to the bodies 17. Beating impacts are applied on the surface layer part of the ingot 8 right after coming out of the casting mold by means of the bundles 13 of the devices 4, 5. |
