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公开(公告)号：US10226801B2
公开(公告)日：2019-03-12
申请号：US14371961
申请日：2013-01-15
发明人： Shuntaro Imai , Yasuo Maruki , Norimasa Yamasaki , Yukihiro Matsuoka , Satoshi Senoo , Masanobu Hayama
IPC分类号： B21D11/12 , B21B1/46 , B22D11/128 , B21B27/02 , B21B31/02
摘要： The present invention is a casting product reduction apparatus that applies reduction to a casting product drawn from a mold with a sufficient reduction force and thereby can surely decrease center segregation and porosity and suppress occurrence of internal cracks so as to manufacture a high-quality casting product and includes: a pair of casting product press rolls that hold and press the casting product therebetween; backup rolls that support the casting product press rolls; and a pair of frames arranged to face each other, wherein three or more sets of the casting product press roll and the backup roll are arranged in a casting product drawing direction on each of the frames, and wherein a reduction means that decreases and increases a distance between the frames is provided at two or more places on the pair of frames.
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公开(公告)号：US09782824B2
公开(公告)日：2017-10-10
申请号：US14766041
申请日：2014-04-28
发明人： Shuntaro Imai , Yasuo Maruki , Daisuke Miki , Hiroaki Uchiyama
IPC分类号： B21B1/46 , B22D11/12 , B22D11/128 , B21B27/02 , B21B13/22
CPC分类号： B22D11/12 , B21B1/46 , B21B13/22 , B21B27/021 , B22D11/1206 , B22D11/1282 , B22D11/1287
摘要： Continuous casting equipment includes a casting product reduction apparatus and a casting product drawing apparatus, the casting product reduction apparatus including a pair of casting product reduction rolls that sandwich and apply pressure to a casting product and being configured to apply reduction to the casting product, the casting product drawing apparatus being provided in a following stage of the casting product reduction apparatus and configured to sandwich and draw the casting product with a pair of casting product drawing rolls. At least one of the pair of casting product reduction rolls includes a large-diameter part that projects radially outward in an axial-direction center region and applies pressure to a width-direction center region of the casting product. The casting product that is subjected to reduction by the casting product reduction apparatus has a depressed part corresponding to the large-diameter part. At least one of the pair of casting product drawing rolls of the casting product drawing apparatus includes a depressed part supporting part that contacts with and supports the depressed part, and is driven by a driving mechanism. An axial-direction length L2 of the depressed part supporting part and an axial-direction length L1 of the large-diameter part of the casting product reduction roll satisfy 0.5×L1≦L2
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