# US 11,027,331 B2 · Molding facility

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- Number: US 11,027,331 B2
- Document ID: US11027331B2
- Status: Granted
- Kind: B2
- Application number: 16/959,250
- Filed: 2019-02-25
- Published: 2020-10-22
- Granted: 2021-06-08
- Earliest claimed: 2018-02-26
- Assignees: Nippon Steel Corporation
- Applicants: Nippon Steel Corporation
- Inventors: Nobuhiro Okada; Shintaro Oga; Yuichi Tsukaguchi
- Web page: https://patentgrep.com/patent/US11027331B2

## CPC

- B22D 11/115: by using magnetic fields
- B22D 11/041: for vertical casting (B22D11/043, B22D11/049 - B22D11/059 take precedence)
- B22D 11/055: Cooling the moulds {(B22D11/04 takes precedence)}
- B22D: CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES (shaping of plastics or substances in a plastic state B29C; metallurgical processing, selection of substances to be added to metal C21, C22)

## Abstract

A molding facility in continuous casting enabling the quality of the cast slab to be achieved stably even if improving the productivity, the molding facility provided with a mold for continuous casting use, a first water box and second water box storing cooling water for cooling the mold, an electromagnetic stirring device imparting to molten metal in the mold an electromagnetic force causing a swirling flow to be generated in a horizontal plane, and an electromagnetic brake device imparting to a discharge flow of molten metal to an inside of the mold from a submerged nozzle an electromagnetic force in a direction braking the discharge flow, the first water box, the electromagnetic stirring device, the electromagnetic brake device, and the second water box being placed in that order from above to below at an outside surface of a long side mold plate of the mold so as to fit between a top end and bottom end of the long side mold plate, a core height H1 of the electromagnetic stirring device and a core height H2 of the electromagnetic brake device satisfying 0.80≤H1/H2≤2.33.

## Claims

### Claim 1

A molding facility comprising
a mold for continuous casting use,
a first water box and second water box storing cooling water for cooling the mold,
an electromagnetic stirring device imparting to molten metal in the mold an electromagnetic force causing a swirling flow to be generated in a horizontal plane, and
an electromagnetic brake device imparting an electromagnetic force to a discharge flow of molten metal to an inside of the mold from a submerged nozzle in a direction braking the discharge flow, wherein
the first water box, the electromagnetic stirring device, the electromagnetic brake device, and the second water box being placed in that order from above to below at an outside surface of a long side mold plate of the mold,
a core height H1 of the electromagnetic stirring device and a core height H2 of the electromagnetic brake device satisfying a relationship shown in the following numerical formula (101):
0.80
≤
H
⁢
⁢
1
H
⁢
⁢
2
≤
2.33
.
(
101
)

### Claim 2 (depends on 1)

The molding facility according to claim 1, wherein the core height H1 of the electromagnetic stirring device and the core height H2 of the electromagnetic brake device satisfy the relationship shown in the following numerical formula (103):
1.00
≤
H
⁢
⁢
1
H
⁢
⁢
2
≤
2.00
.
(
103
)

### Claim 3 (depends on 2)

The molding facility according to claim 2, wherein a casting speed is 2.2 m/min or less.

### Claim 4 (depends on 1)

The molding facility according to claim 1, wherein the core height H1 of the electromagnetic stirring device and the core height H2 of the electromagnetic brake device satisfy the relationship shown in the following numerical formula (105):
1.00
≤
H
⁢
⁢
1
H
⁢
⁢
2
≤
1.5
.
(
105
)

### Claim 5 (depends on 4)

The molding facility according to claim 4, wherein a casting speed is 2.4 m/min or less.

### Claim 6 (depends on 1)

The molding facility according to claim 1, wherein the core height H1 of the electromagnetic stirring device and the core height H2 of the electromagnetic brake device satisfy the relationship shown in the following numerical formula (2):
H1+H2≤500 mm (2).

### Claim 7 (depends on 1)

The molding facility according to claim 1, wherein the electromagnetic brake device is comprised of a split brake.

### Claim 8 (depends on 1)

The molding facility according to claim 1, wherein a casting speed is 2.0 m/min or less.