| (19) |
 |
|
(11) |
EP 0 417 492 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
13.05.1992 Bulletin 1992/20 |
| (43) |
Date of publication A2: |
|
20.03.1991 Bulletin 1991/12 |
| (22) |
Date of filing: 14.08.1990 |
|
|
| (84) |
Designated Contracting States: |
|
DE FR GB |
| (30) |
Priority: |
16.08.1989 JP 211067/89
25.06.1990 JP 164256/90
|
| (71) |
Applicant: DAIDO TOKUSHUKO KABUSHIKI KAISHA |
|
Naka-ku
Nagoya-shi
Aichi-ken (JP) |
|
| (72) |
Inventors: |
|
- Morii, Kiyoshi
Kohnan-shi,
Aichi-ken (JP)
- Kumura, Shuzo
Chita-gun,
Aichi-ken (JP)
- Hayakawa, Shyzunori
Tokai-shi,
Aichi-ken (JP)
- Inagaki, Yoshio
Higashiuracho,
Chita-gun,
Aichi-ken (JP)
|
| (74) |
Representative: Kraus, Walter, Dr. et al |
|
Patentanwälte Kraus, Weisert & Partner
Thomas-Wimmer-Ring 15
D-80539 München
D-80539 München (DE) |
|
| |
|
| (54) |
Vertical continuous casting method and casting apparatus |
(57) Disclosed are a method and an apparatus for vertical continuous casting. In the vertical
continuous casting wherein a strand formed in a water-cooled mold is drawn down vertically
therefrom without being incurvated light reduction means is positioned just prior
to the solidefication completing point of the strand and light reduction strong enough
to compensate contraction caused by solidification is applied to the strand, then,
formation of central cavities is prevented and central segregation is lessened. The
light reduction pinch rolle are provided variably in position up and down along the
strand.