Title:
CONTINUOUS-CURVATURE CONVEX ROLL FOR CONTINUOUSLY CASTING BLOOM, AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/042923
Kind Code:
A1
Abstract:
Disclosed are a continuous-curvature convex roll for continuously casting a bloom, and a manufacturing method therefor, belonging to the field of metal casting. An outer contour curve of a working portion of a body of the continuous-curvature convex roll consists of a first straight-line segment (AB), a first transition curve segment (BC), a middle straight-line segment (CD), a second transition curve segment (DE) and a second straight-line segment (EF). The first transition curve segment (BC), the first straight-line segment (AB), and the middle straight-line segment (CD) have continuous first-order derivatives, continuous second-order derivatives, and continuous curvatures, thus forming a first transition curve with a continuous curvature. The first transition curve segment (BC) and the second transition curve segment (DE) are mirror-symmetrical. The continuous-curvature convex roll manufactured according to the technical solution can uniformly deform a blank cast in a deformation area, thereby reducing cracks. The transition curve of the convex roll can be reduced, thereby being capable of further reducing a rolling pressure and the withdrawal resistance. The present invention can be widely used in the field of metal casting.
Inventors:
XU RONGJUN (CN)
LIU JUNJIANG (CN)
WAN GENJIE (CN)
LI CHENGBIN (CN)
LIU XIANGCHUN (CN)
MENG QINGYU (CN)
LIU JUNJIANG (CN)
WAN GENJIE (CN)
LI CHENGBIN (CN)
LIU XIANGCHUN (CN)
MENG QINGYU (CN)
Application Number:
PCT/CN2019/101036
Publication Date:
March 05, 2020
Filing Date:
August 16, 2019
Export Citation:
Assignee:
BAOSHAN IRON & STEEL (CN)
International Classes:
B22D11/12
Foreign References:
| CN104399924A | 2015-03-11 | |||
| CN106001475A | 2016-10-12 | |||
| CN107377919A | 2017-11-24 | |||
| CN1528545A | 2004-09-15 | |||
| RU2120349C1 | 1998-10-20 | |||
| CN107377919A | 2017-11-24 | |||
| CN106001475A | 2016-10-12 | |||
| CN105983668A | 2016-10-05 |
Other References:
See also references of EP 3845329A4
Attorney, Agent or Firm:
SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)
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