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公开(公告)号：EP0679114B1
公开(公告)日：1999-07-21
申请号：EP95900015.9
申请日：1994-11-09
IPC分类号： B22D11/06
CPC分类号： B22D11/0668 , B22D11/0651
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公开(公告)号：EP0670757B1
公开(公告)日：1999-08-18
申请号：EP94900017.8
申请日：1993-11-22
发明人： FREEMAN, John , STREZOV, Lazar , OSBORN, Steve
IPC分类号： B22D11/06
CPC分类号： B22D11/0622
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公开(公告)号：EP0679114A1
公开(公告)日：1995-11-02
申请号：EP95900015.0
申请日：1994-11-09
IPC分类号： B22D11
CPC分类号： B22D11/0668 , B22D11/0651
摘要： Method of continuously casting metal strip (20) from a casting pool of molten metal supported on chilled casting rolls (16) such that metal solidifies onto moving casting surfaces of the rolls. The metal is austenitic stainless steel containing chromium and nickel in a ratio (Cr/Ni)eq of less than 1.60 (preferably no greater than 1.55) and the casting surface of each roll has an Arithmetical Mean Roughness Value (Ra) of more than 2.5 microns (preferably in the range 2.5 to 15 microns).
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公开(公告)号：EP0670757A1
公开(公告)日：1995-09-13
申请号：EP94900017.0
申请日：1993-11-22
发明人： FREEMAN, John , STREZOV, Lazar , OSBORN, Steve
IPC分类号： B22D11
CPC分类号： B22D11/0622
摘要： Method and apparatus for continuously casting metal strip (20) of the kind in which a casting pool of molten metal (30) is formed in contact with a moving casting surface (16A) such that metal solidifies from the pool onto the moving casting surface. By making the casting surface (16A) very smooth and inducing relative vibratory movement between the molten metal and the casting surface at selected frequency and amplitude, the heat transfer from the solidifying metal is dramatically improved. The casting surface has an Arithmetical Mean Roughness Value (Ra) of less than 5 microns and the induced vibratory movement preferably has a frequency of no more than 20 kHz. This enables improved casting productivity and also produces a marked refinement of the surface structure of the cast metal.
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