KR101273962B1 - Edge dam for twin roll type strip caster - Google Patents
Edge dam for twin roll type strip caster Download PDFInfo
- Publication number
- KR101273962B1 KR101273962B1 KR20100131933A KR20100131933A KR101273962B1 KR 101273962 B1 KR101273962 B1 KR 101273962B1 KR 20100131933 A KR20100131933 A KR 20100131933A KR 20100131933 A KR20100131933 A KR 20100131933A KR 101273962 B1 KR101273962 B1 KR 101273962B1
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- KR
- South Korea
- Prior art keywords
- patching
- sealing plate
- base
- refractory material
- edge dam
- Prior art date
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
The present invention is an edge dam installed on both sides of the casting rolls, in order to trap the molten steel between a pair of casting rolls. A base refractory material forming an overall shape of the edge dam and positioned on a side of the casting roll; A sealing plate inserted into the base refractory material along a portion of an edge of the casting roll side and in close contact with the casting roll side to seal the molten steel; An attachment material for attaching the sealing plate to the ground fireproof material; And a patching material inserted into and attached along a boundary between the base fireproof material and the sealing plate. The edge roll for the twin roll sheet caster as described above prevents penetration of molten steel between the base refractory material and the sealing plate, and provides a stable casting operation.
Description
The present invention relates to an edge dam for a double roll type sheet casting machine that is in close contact with a side portion of a pair of casting rolls to prevent the outflow of molten steel supplied between the pair of casting rolls. The present invention relates to an edge dam for a twin roll sheet caster capable of preventing a solidified body of molten steel from being attached therebetween.
Twin roll sheet casters are used to produce thin casts. 1 is a view showing a state in which the
On both sides of the casting rolls (R, R '), the
Edge
The sealing
On the other hand, the
This coagulation body is repeatedly peeled off and pressed between the casting rolls and inserted into the gap between the base refractory material and the sealing plate to separate and damage the sealing plate from the base refractory material. For this reason, the casting process becomes unstable and there is a problem that defects are generated in the edge portion of the cast slab.
An object of the present invention is to provide an edge dam for a double roll type sheet caster which can prevent a gap from being generated between a base fireproof material and a sealing plate, and prevent molten steel from penetrating into the gap.
In another aspect, the present invention is to stably attach the sealing plate to the refractory material, to provide an edge dam for a twin roll sheet caster that can implement a stable casting operation.
The present invention is an edge dam installed on both sides of the casting rolls, in order to trap the molten steel between a pair of casting rolls. A base refractory material forming an overall shape of the edge dam and positioned on a side of the casting roll; A sealing plate inserted into the base refractory material along a portion of an edge of the casting roll side and in close contact with the casting roll side to seal the molten steel; An attachment material for attaching the sealing plate to the ground fireproof material; And a patching material inserted and attached along a boundary between the base fireproof material and the sealing plate.
In addition, the sealing plate protrudes from the base refractory material toward the side of the casting roll, is formed by cutting and including an edge adjacent to the boundary with the base refractory material, the patching material is inserted and attached over the base refractory material Disclosed is an edge dam comprising a patching insert.
The patch inserting portion may include: a patching surface recessed between the base refractory material and the sealing plate and stacked with the patching material; And an intersecting patching surface spaced apart from the base refractory material while intersecting with the patching surface.
In addition, the patching surface and the cross-patching surface discloses an edge dam, characterized in that formed at an angle between 60 ° to 90 °.
In addition, the patching surface is formed to be further recessed by 2 mm to 10 mm than the base refractory material, the cross patching surface is an edge dam characterized in that spaced apart from the base refractory material at intervals of 2 mm to 10 mm .
In addition, the sealing plate discloses an edge dam, characterized in that protruding by 2 mm to 5 mm more than the base refractory material.
In addition, the patching material discloses an edge dam, characterized in that attached to the base fireproof material in a width of 2 mm to 10 mm and a thickness of 2 mm to 5 mm.
Also disclosed is an edge dam comprising a mixture of an oxide-based refractory raw material and an inorganic binder having an average particle size of less than 150 μm.
Edge dam for twin roll sheet caster according to the present invention has the following effects.
(1) An edge dam for a twin roll sheet caster according to the present invention includes a base fireproof material, a sealing plate, an attachment material and a patching material, and attaches the patching material to the boundary between the base fireproof material and the sealing plate. In particular, in order to improve the adhesion of the patching material, the sealing plate is formed with a cutout inserting portion including an edge adjacent to the boundary with the base refractory material, and the patching material is attached while being inserted into the patching insertion part over the base refractory material. For this reason, the edge dam for the twin roll sheet casting machine according to the present invention tightly seals the boundary between the base refractory material and the sealing plate using a patching material, thereby preventing the occurrence of a gap between the base refractory material and the sealing plate, and It has the effect of preventing the penetration of molten steel.
(2) The edge dam for the twin roll sheet casting machine according to the present invention prevents penetration of molten steel between the base refractory material and the sealing plate, thereby firmly attaching the sealing plate to the base fireproof material. Therefore, the edge dam for the twin roll sheet caster according to the present invention may prevent the leakage of molten steel due to damage of the sealing plate, it has the effect of implementing a stable casting operation.
1 is a view showing the edge dam is used in a twin-roll sheet caster.
2 is a plan view showing an edge dam for a twin roll sheet caster according to the prior art and a cross-sectional view showing a state cut along the line AA.
3 is a plan view showing an edge dam for a twin roll sheet caster according to a preferred embodiment of the present invention and a cross-sectional view showing a cut along the line BB.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.
3 is a plan view showing an
The base
The
The
On the other hand, a
The
The
The
The patching
In addition, the patching
In addition, in order to firmly attach the patching
In the patching
In addition, the patching
On the other hand, when the width W of the
In addition, if the recessed depth D of the
The protruding height H affects the thickness of the patching
The patching
Therefore, the
While the present invention has been described in connection with certain exemplary embodiments, it will be understood by those skilled in the art that various changes may be made without departing from the scope of the present invention.
The scope of the present invention is determined by the matters set forth in the claims, and the parentheses used in the claims are not for the purpose of selective limitation, but rather for the sake of clarity. Should be.
100: edge dam 101: ground refractory
102: sealing plate 103: adhesive
104: patching material 121: patching insertion portion
121a: patching
Claims (8)
A base refractory material forming an overall shape of the edge dam and positioned on a side of the casting roll;
A sealing plate inserted into an inner surface of the base refractory material along a portion of an edge of the casting roll side surface, protruding from the base refractory material toward the side of the casting roll, and sealing the molten steel in close contact with the casting roll side;
An attachment material for attaching the sealing plate to the ground fireproof material;
A patching material inserted into and attached along a boundary between the inner surface of the base fireproof material and the sealing plate; And
And a patching insert formed by cutting the edge of the sealing plate adjacent to the boundary with the base refractory material, wherein the patching material is inserted and attached to the base refractory material.
The patch inserting portion,
A patching surface recessed between the base fireproof material and the sealing plate, and the patching material stacked thereon; And
An intersecting patching surface spaced apart from the base refractory material while intersecting with the patching surface,
And the patching surface and the cross patching surface are formed at an angle between 60 ° and 90 °.
The patching surface is formed to be recessed further by 2 mm to 10 mm than the base refractory material, wherein the cross patching surface is spaced apart from the base refractory material at intervals of 2 mm to 10 mm.
The sealing plate is an edge dam, characterized in that protruding by 2 mm to 5 mm more than the base refractory material.
The patching material is the edge dam, characterized in that attached to the base fireproof material in a width of 2 mm to 10 mm and a thickness of 2 mm to 5 mm.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20100131933A KR101273962B1 (en) | 2010-12-21 | 2010-12-21 | Edge dam for twin roll type strip caster |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20100131933A KR101273962B1 (en) | 2010-12-21 | 2010-12-21 | Edge dam for twin roll type strip caster |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20120070395A KR20120070395A (en) | 2012-06-29 |
KR101273962B1 true KR101273962B1 (en) | 2013-06-12 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR20100131933A KR101273962B1 (en) | 2010-12-21 | 2010-12-21 | Edge dam for twin roll type strip caster |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20200068406A (en) | 2018-12-05 | 2020-06-15 | 주식회사 포스코 | Edge Dam For Twin Roll Type Strip Caster |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09206892A (en) * | 1996-01-29 | 1997-08-12 | Nippon Steel Corp | Side weir of apparatus for continuous production of sheet |
JPH11197802A (en) * | 1998-01-16 | 1999-07-27 | Hitachi Zosen Corp | Side weir in twin roll type thin plate continuous casting equipment, manufacture thereof and repairing method therefor |
KR20070057233A (en) * | 2004-09-02 | 2007-06-04 | 에이에스 런겐 게엠베하 | Material mixture for producing casting moulds for machining metal |
KR20090065689A (en) * | 2007-12-18 | 2009-06-23 | 주식회사 포스코 | Edgedam sealing plate for twrin roll strip casting |
-
2010
- 2010-12-21 KR KR20100131933A patent/KR101273962B1/en active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09206892A (en) * | 1996-01-29 | 1997-08-12 | Nippon Steel Corp | Side weir of apparatus for continuous production of sheet |
JPH11197802A (en) * | 1998-01-16 | 1999-07-27 | Hitachi Zosen Corp | Side weir in twin roll type thin plate continuous casting equipment, manufacture thereof and repairing method therefor |
KR20070057233A (en) * | 2004-09-02 | 2007-06-04 | 에이에스 런겐 게엠베하 | Material mixture for producing casting moulds for machining metal |
KR20090065689A (en) * | 2007-12-18 | 2009-06-23 | 주식회사 포스코 | Edgedam sealing plate for twrin roll strip casting |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20200068406A (en) | 2018-12-05 | 2020-06-15 | 주식회사 포스코 | Edge Dam For Twin Roll Type Strip Caster |
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Publication number | Publication date |
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KR20120070395A (en) | 2012-06-29 |
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