CA1164623A - Method for fitting break ring to mold in horizontal type continuous casting apparatus - Google Patents
Method for fitting break ring to mold in horizontal type continuous casting apparatusInfo
- Publication number
- CA1164623A CA1164623A CA000354089A CA354089A CA1164623A CA 1164623 A CA1164623 A CA 1164623A CA 000354089 A CA000354089 A CA 000354089A CA 354089 A CA354089 A CA 354089A CA 1164623 A CA1164623 A CA 1164623A
- Authority
- CA
- Canada
- Prior art keywords
- break ring
- mold
- outer peripheral
- feed nozzle
- break
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/045—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds for horizontal casting
- B22D11/047—Means for joining tundish to mould
- B22D11/0475—Means for joining tundish to mould characterised by use of a break ring
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A method for fitting a break ring between a mold which is to be horizontally fitted to the lower part of a side wall of a tundish of a horizontal type contin-uous casting apparatus through a front nozzle and a feed nozzle, which comprises: imparting a compressive stress to the outer peripheral portion of the break ring for re-ducing tensile stress caused during casting in the outer peripheral portion of the break ring in the circumferential direction thereof by a temperature difference between the outer peripheral portion and the inner peripheral portion of the break ring, thereby constraining thermal expansion of the break ring and thus preventing the break ring from breaking.
A method for fitting a break ring between a mold which is to be horizontally fitted to the lower part of a side wall of a tundish of a horizontal type contin-uous casting apparatus through a front nozzle and a feed nozzle, which comprises: imparting a compressive stress to the outer peripheral portion of the break ring for re-ducing tensile stress caused during casting in the outer peripheral portion of the break ring in the circumferential direction thereof by a temperature difference between the outer peripheral portion and the inner peripheral portion of the break ring, thereby constraining thermal expansion of the break ring and thus preventing the break ring from breaking.
Description
2 3 FIELD OF THE INVENTION
The present invention relates to a method for fitting a break ring to a mold in a horizontal -type con-tinuous casting apparatus, which prevents the occurrence of cracks in the break ring and the breakage thereof caused by tensile stress occurring in the outer peripheral portion of the break ring in the circumferential direction thereof under the effect of a temperature difference be-tween the outer peripheral portion and the inner peripheral portion of the break ring during casting.
BRIEF DESCRIPTION OF THE DRA~INGS
Fig. 1 is a sectlonal view illustratiny a con ventional method of fitting a break riny to a mold in a horizontal type continuous cas-ting apparatus;
Fig. 2 illustrates an example of temperature distribution in a break ring on the longitudinal section at the width center thereof during casting;
Fig. 3 illustrates the aistribution of tensile stress occurring in the circumferential direction of the break ring in the outer peripheral portion of the break ring on the longitudinal section at the width center thereof corresponding to the temperature distribution shown in Fig. 2;
Fig, 4 is a sectional view illustrating an embodiment for carrying ou~ the method of the present in-vention;
Fig. 5 is a sectional view illustrating another embodiment for carrying out the method of the present in-vention; and mab/CJIO
- 1 ~B4~23 Fig. 6 i5 a partial sectional view illustrating - a further embodiment for carrying out the method of th~
present invention.
BACKGROUND OF THE INVENTION
The vertical type continuous casting process, which comprises casting steel by vertically drawing a cast strand from a vertical mold installed below a tundish, is being replaced by the horizontal type continuous casting process, which comprises casting steel by horizontally drawing a cast strand from a horizontal mold installed at the lower part of a side wall of a tundish, because of the low installation cost and other advantages t~ereof.
A conventional method of fitting a break ring to a mold in a horizontal type continuous casting apparatus is illustrated in the form of a sectional view in Fig. 1. In Fig. 1, 1 is a tundish; la is a steel shell of the tundish 1; 2 IS a front nozzle horizontally fitted to the lower part of the steel shell la; 3 is a feed nozzle horizontally connected to the tip of the front nozzle 2; 4 i5 a mold of hollow rectangular shape, cooled by cooling water, connected horizontally, through a break ring described later, to the tip of the feed nozzle 3; and, S is a break ring fitted between the feed nozzle 3 and the mold 4.
The break ring 5 has a rectangular frame-shaped body, with an out~r peripheral surface tapered at an angle of over 3, and engages into the mold 4, having a tapered surface mating with the tapered outer peripheral surface of the break ring 5. The break ring 5 is forc~d against the feed nozzle 3 to the extent that molten steel does not mab/ C~
6~3 flow into the joint between the break ring 5 and the feed nozzle 3 duriny casting. This force is not, however, large. The outer peripheral portion of the break ring 5 is cooled by contact wi'th the water-cooled mold 4, where-as the inner peripheral portion of the break ring 5 is heated to a high temperature and is expanded by contact with the molten steel.' As a result, a circumferential tensile stress occurs in the outer peripheral portion of the break ring 5 in contact with the mold 4.
Fig. 2 illustrates an example of temperature dis-tribution in the longitudinal section at the width center of the break ring 5 during casting, and Fig. 3, the dis-tribution of the tensile stress occurring in the outer peri- ' pheral portion of the break ring 5 ln the circumferential direction thereof corresponding to the temperature distri-bution shown in Fig. 2. As is clear frorn Fig. 3, a very large tensile stress of at least 300 kg/cm2 occurs in the outer peripheral portion of the break ring 5 in the cir-- cumferential direction thereof.
A break ring is usually made of a refractory material, having a relatively high resistance to compres-sive stress but a poor resistance to tensile stress, such as silicon nitride (Si3N4). When a large tensile stress, as mentioned above, occurs in the circumferential direction in the outer peripheral portion of the break ring, cracks occur in the break ring, and the break ring breaks.
Occurrence of cracks in the break ring or -the breakage thereof during casting may cause defects on the surface of ,P,~
mab/ ch ` ~ ~6~23 the resultant cast strand, or may even result in the interruption of the casting operation.
SUMMARY OF THE INVENTION
In one aspect the invention provides a hor-izontal type continuous casting apparatus, a method for fitting a break ring between a horizontal mold and a feed nozzle which is horizontally fitted to the lower part of a side wall of a tundish of the horizontal type continuous casting apparatus through a front nozzle, the feed nozzle being adjacent to the front nozzle, the break ring having a tapered outer peripheral surface and the mold having a tapered surface matching with and receiving the tapered outer peripheral surface of the break ring, the method comprising: engaging the break ring having the tapered outer peripheral surface into the mold having the tapered surface such that the tapered outer peripheral surface of the break ring bears against the tapered surface of the mold; and positively pushing the break ring against the mold through the feed nozzle by means of a counter fitting connected to the feed nozzle to develop a large.compressive force on the outer tapered surface of the break r~ng, thereby imparting a large compressiVe stress to the tapered outer peripheral por-tion of the break ring for reducing tensile stress caused during casting in the outer peripheral portion of the break ring in the circumferential direction thereof by a mab/ ~.1 - ~ lB4~23 temperature difference between the outer peripheral portion and the inner peripheral portion of the break ring, thereby constraining thermal expansion of the break ring and thus preventing the break ring from breaking.
: `.
mab/
- ~ lB4~23 DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
The me~hod of the present invention for fitting a break ring to a mold in a horizontal type continuous casting apparatus is described in detail with reference to Figs. 4 to 6.
Fig. 4 is a sectional view illustrating an embodiment for carrying out the method of the present in-vention. In Fig. 4, 1 is a tundish; la is a steel shell of the tundish 1; 2 is a front nozzle fitted horizontally to the lower part of the steel shell la; 3 is a feed nozzle connected horizontally to the top of the front nozzle 2; 4 is a mold connected horizontally to the top of the feed nozæle 3 through a break ring 5 described later; 5 is a break ring provided between the feed nozzle
The present invention relates to a method for fitting a break ring to a mold in a horizontal -type con-tinuous casting apparatus, which prevents the occurrence of cracks in the break ring and the breakage thereof caused by tensile stress occurring in the outer peripheral portion of the break ring in the circumferential direction thereof under the effect of a temperature difference be-tween the outer peripheral portion and the inner peripheral portion of the break ring during casting.
BRIEF DESCRIPTION OF THE DRA~INGS
Fig. 1 is a sectlonal view illustratiny a con ventional method of fitting a break riny to a mold in a horizontal type continuous cas-ting apparatus;
Fig. 2 illustrates an example of temperature distribution in a break ring on the longitudinal section at the width center thereof during casting;
Fig. 3 illustrates the aistribution of tensile stress occurring in the circumferential direction of the break ring in the outer peripheral portion of the break ring on the longitudinal section at the width center thereof corresponding to the temperature distribution shown in Fig. 2;
Fig, 4 is a sectional view illustrating an embodiment for carrying ou~ the method of the present in-vention;
Fig. 5 is a sectional view illustrating another embodiment for carrying out the method of the present in-vention; and mab/CJIO
- 1 ~B4~23 Fig. 6 i5 a partial sectional view illustrating - a further embodiment for carrying out the method of th~
present invention.
BACKGROUND OF THE INVENTION
The vertical type continuous casting process, which comprises casting steel by vertically drawing a cast strand from a vertical mold installed below a tundish, is being replaced by the horizontal type continuous casting process, which comprises casting steel by horizontally drawing a cast strand from a horizontal mold installed at the lower part of a side wall of a tundish, because of the low installation cost and other advantages t~ereof.
A conventional method of fitting a break ring to a mold in a horizontal type continuous casting apparatus is illustrated in the form of a sectional view in Fig. 1. In Fig. 1, 1 is a tundish; la is a steel shell of the tundish 1; 2 IS a front nozzle horizontally fitted to the lower part of the steel shell la; 3 is a feed nozzle horizontally connected to the tip of the front nozzle 2; 4 i5 a mold of hollow rectangular shape, cooled by cooling water, connected horizontally, through a break ring described later, to the tip of the feed nozzle 3; and, S is a break ring fitted between the feed nozzle 3 and the mold 4.
The break ring 5 has a rectangular frame-shaped body, with an out~r peripheral surface tapered at an angle of over 3, and engages into the mold 4, having a tapered surface mating with the tapered outer peripheral surface of the break ring 5. The break ring 5 is forc~d against the feed nozzle 3 to the extent that molten steel does not mab/ C~
6~3 flow into the joint between the break ring 5 and the feed nozzle 3 duriny casting. This force is not, however, large. The outer peripheral portion of the break ring 5 is cooled by contact wi'th the water-cooled mold 4, where-as the inner peripheral portion of the break ring 5 is heated to a high temperature and is expanded by contact with the molten steel.' As a result, a circumferential tensile stress occurs in the outer peripheral portion of the break ring 5 in contact with the mold 4.
Fig. 2 illustrates an example of temperature dis-tribution in the longitudinal section at the width center of the break ring 5 during casting, and Fig. 3, the dis-tribution of the tensile stress occurring in the outer peri- ' pheral portion of the break ring 5 ln the circumferential direction thereof corresponding to the temperature distri-bution shown in Fig. 2. As is clear frorn Fig. 3, a very large tensile stress of at least 300 kg/cm2 occurs in the outer peripheral portion of the break ring 5 in the cir-- cumferential direction thereof.
A break ring is usually made of a refractory material, having a relatively high resistance to compres-sive stress but a poor resistance to tensile stress, such as silicon nitride (Si3N4). When a large tensile stress, as mentioned above, occurs in the circumferential direction in the outer peripheral portion of the break ring, cracks occur in the break ring, and the break ring breaks.
Occurrence of cracks in the break ring or -the breakage thereof during casting may cause defects on the surface of ,P,~
mab/ ch ` ~ ~6~23 the resultant cast strand, or may even result in the interruption of the casting operation.
SUMMARY OF THE INVENTION
In one aspect the invention provides a hor-izontal type continuous casting apparatus, a method for fitting a break ring between a horizontal mold and a feed nozzle which is horizontally fitted to the lower part of a side wall of a tundish of the horizontal type continuous casting apparatus through a front nozzle, the feed nozzle being adjacent to the front nozzle, the break ring having a tapered outer peripheral surface and the mold having a tapered surface matching with and receiving the tapered outer peripheral surface of the break ring, the method comprising: engaging the break ring having the tapered outer peripheral surface into the mold having the tapered surface such that the tapered outer peripheral surface of the break ring bears against the tapered surface of the mold; and positively pushing the break ring against the mold through the feed nozzle by means of a counter fitting connected to the feed nozzle to develop a large.compressive force on the outer tapered surface of the break r~ng, thereby imparting a large compressiVe stress to the tapered outer peripheral por-tion of the break ring for reducing tensile stress caused during casting in the outer peripheral portion of the break ring in the circumferential direction thereof by a mab/ ~.1 - ~ lB4~23 temperature difference between the outer peripheral portion and the inner peripheral portion of the break ring, thereby constraining thermal expansion of the break ring and thus preventing the break ring from breaking.
: `.
mab/
- ~ lB4~23 DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
The me~hod of the present invention for fitting a break ring to a mold in a horizontal type continuous casting apparatus is described in detail with reference to Figs. 4 to 6.
Fig. 4 is a sectional view illustrating an embodiment for carrying out the method of the present in-vention. In Fig. 4, 1 is a tundish; la is a steel shell of the tundish 1; 2 is a front nozzle fitted horizontally to the lower part of the steel shell la; 3 is a feed nozzle connected horizontally to the top of the front nozzle 2; 4 is a mold connected horizontally to the top of the feed nozæle 3 through a break ring 5 described later; 5 is a break ring provided between the feed nozzle
3 and the mold 4; 6 is a counter fitting; and, 7 are a plurality mab/~
of clamping bolts horizontally penetrating the counter fitting 6 and driven into the flange of the mold 4.
The break ring 5 has an outer peripheral surface which is tapered by an angle of over 3 relative to the axial line thereof and engages in the mold 4 having a tapered surface mating with said outer peripheral surface.
~ he counter fitting 6 has a rectangular frame--shaped body provided with a tapered inner peripheral surface which is in contact with a tapered surface 3' ~ormed on the outer peripheral surface of the feed nozzle 3.
By tightening the plurality of clamping bolts 7, therefore the break ring 5 is pushed against the mold 4 by the counter fitting 6 through the feed nozzle 3. As a result, a compressive stress occurs in the outer peri-pheral portion and constrains thermal expansion of the break ring 5. Said compressi~e stress therefore reduces, during casting, the tensile stress in the outer peripheral portion of the break ring in the circumferencial direction thereof because of the temperature difference between the outer peripheral portion and the inner peripheral portion of the break ring 5.
As a result, it is possible to prevent cracks and
of clamping bolts horizontally penetrating the counter fitting 6 and driven into the flange of the mold 4.
The break ring 5 has an outer peripheral surface which is tapered by an angle of over 3 relative to the axial line thereof and engages in the mold 4 having a tapered surface mating with said outer peripheral surface.
~ he counter fitting 6 has a rectangular frame--shaped body provided with a tapered inner peripheral surface which is in contact with a tapered surface 3' ~ormed on the outer peripheral surface of the feed nozzle 3.
By tightening the plurality of clamping bolts 7, therefore the break ring 5 is pushed against the mold 4 by the counter fitting 6 through the feed nozzle 3. As a result, a compressive stress occurs in the outer peri-pheral portion and constrains thermal expansion of the break ring 5. Said compressi~e stress therefore reduces, during casting, the tensile stress in the outer peripheral portion of the break ring in the circumferencial direction thereof because of the temperature difference between the outer peripheral portion and the inner peripheral portion of the break ring 5.
As a result, it is possible to prevent cracks and
4 ~2 3 breakage from occurring in the break ring 5.
Fig. S is a sectional view illustrating another embodiment of the present invention. In Fig. 5, 1 is a tundish; la is a steel shell of ~he tundish l; 2 is a front nozzle; 3 is a feed nozzle; 4 is a ld horizontally connected through a break ring 5 described later to the tip of the feed nozzle 3; 5 is a break xing provided between the end face of the mold 4 and the feed nozzle 3;
8 is a counter fitting; and, 9 are a plurality of clamping bolts horizontally penetrating the counter fitting 8 and driven into the flange oE the mold 4.
The outer peripheral surface of the break ring 5 is in parallel with the axial line thereof.
The counter fitting 8 has a fitting 8' with an lS L-shaped cross-section on the inner peripheral surface thereof, and the fitting 8' contacts with aright-angled corner of the break ring 5 on the feed nozzle side.
By tightening the plurality of clamping bolts 9, therefore, the break ring 5 is pushed against the end face of the mold 4 by the counter fitting 8. As a result, even when a thermal expansion occurs in the break ring 5 during casting, thermal expansion of the break ring 5 is con-strained by the fitting 8', thus resulting in a compressive g _ stress produced in the outer peripheral portion of the break ring 5~ During casting, therefore, the tensile stress occurring i~ the outer peripheral portion of the break ring 5 in the circumferential direction thereof under the effect of the temperature difference between the outer peripheral portion and the inner peripheral portion of the break ring 5 is reduced by said compres~
sive stress. This eliminates the occurrence of cracks in the break ring 5 and the breakage thereof.
Fig. 6 is a partial sectional view illustrating further another embodiment of the method of the present invention_ In Fig. 6, 3 is a feed nozzle; 4 is a mold;
and, 5 is a break ring engaging in the mold 4.
me outer peripheraI surface of the break ring 5 of Fig~ 6 is tapered by an angle within the range of from 1 to 3 relative to the axial line thereof and engages in the mold 4 having a tapered surface mating with said outer peripheral surface~
When the outer peripheral surface of the break ring 5 has an inclination angle of under 1 relative to the axial line thereof, it is difficult to closely engage the break ring 5 into the mold 4. If said inclination angle is over 3 relative to the axial line of the break - 10 ~
`
ring 5, on the other hand, frictional resistance between the mold 4 and the break ring 5 becomes smaller, and when a thermal expansion force acts during casting on the break ring, thermal expansion of the break ring 5 is not constrained by said frictional resistance. Within the range of said inclination angle of from 1 to 3, however, said frictional resistance becomes large, so that even when a thermal expansion force acts during casting on the break ring 5, thermal expansion of the break ring 5 is sufficiently constrained by said fric-tional resistance. ~s a result, a compressi~e stress is produced in the outer peripheral portion of the break ring 5. During casting, therefore, the tensile stress occurring in the outer peripheral portion of the break ring 5 in the circumferential direction thereof under the effect of the temperature difference between the outer peripheral portion and the inner peripheral portion of the break ring S is reduced by said compressive stress.
This eliminates the occurrence of cracks in the break ring 5 and the breakage thereof.
According to the method of the present invention, as mentloned above in detail, thermal expansion of the break ring is constrained during casting, and this reduces a tensile stress occurring in the outer peripheral portion ~ 1 6~23 of the break ring in the circumferential direction thereof, thus providing industrially useful effects such as prevention of cracks and breakage occurring in the break ring.
Fig. S is a sectional view illustrating another embodiment of the present invention. In Fig. 5, 1 is a tundish; la is a steel shell of ~he tundish l; 2 is a front nozzle; 3 is a feed nozzle; 4 is a ld horizontally connected through a break ring 5 described later to the tip of the feed nozzle 3; 5 is a break xing provided between the end face of the mold 4 and the feed nozzle 3;
8 is a counter fitting; and, 9 are a plurality of clamping bolts horizontally penetrating the counter fitting 8 and driven into the flange oE the mold 4.
The outer peripheral surface of the break ring 5 is in parallel with the axial line thereof.
The counter fitting 8 has a fitting 8' with an lS L-shaped cross-section on the inner peripheral surface thereof, and the fitting 8' contacts with aright-angled corner of the break ring 5 on the feed nozzle side.
By tightening the plurality of clamping bolts 9, therefore, the break ring 5 is pushed against the end face of the mold 4 by the counter fitting 8. As a result, even when a thermal expansion occurs in the break ring 5 during casting, thermal expansion of the break ring 5 is con-strained by the fitting 8', thus resulting in a compressive g _ stress produced in the outer peripheral portion of the break ring 5~ During casting, therefore, the tensile stress occurring i~ the outer peripheral portion of the break ring 5 in the circumferential direction thereof under the effect of the temperature difference between the outer peripheral portion and the inner peripheral portion of the break ring 5 is reduced by said compres~
sive stress. This eliminates the occurrence of cracks in the break ring 5 and the breakage thereof.
Fig. 6 is a partial sectional view illustrating further another embodiment of the method of the present invention_ In Fig. 6, 3 is a feed nozzle; 4 is a mold;
and, 5 is a break ring engaging in the mold 4.
me outer peripheraI surface of the break ring 5 of Fig~ 6 is tapered by an angle within the range of from 1 to 3 relative to the axial line thereof and engages in the mold 4 having a tapered surface mating with said outer peripheral surface~
When the outer peripheral surface of the break ring 5 has an inclination angle of under 1 relative to the axial line thereof, it is difficult to closely engage the break ring 5 into the mold 4. If said inclination angle is over 3 relative to the axial line of the break - 10 ~
`
ring 5, on the other hand, frictional resistance between the mold 4 and the break ring 5 becomes smaller, and when a thermal expansion force acts during casting on the break ring, thermal expansion of the break ring 5 is not constrained by said frictional resistance. Within the range of said inclination angle of from 1 to 3, however, said frictional resistance becomes large, so that even when a thermal expansion force acts during casting on the break ring 5, thermal expansion of the break ring 5 is sufficiently constrained by said fric-tional resistance. ~s a result, a compressi~e stress is produced in the outer peripheral portion of the break ring 5. During casting, therefore, the tensile stress occurring in the outer peripheral portion of the break ring 5 in the circumferential direction thereof under the effect of the temperature difference between the outer peripheral portion and the inner peripheral portion of the break ring S is reduced by said compressive stress.
This eliminates the occurrence of cracks in the break ring 5 and the breakage thereof.
According to the method of the present invention, as mentloned above in detail, thermal expansion of the break ring is constrained during casting, and this reduces a tensile stress occurring in the outer peripheral portion ~ 1 6~23 of the break ring in the circumferential direction thereof, thus providing industrially useful effects such as prevention of cracks and breakage occurring in the break ring.
Claims (3)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A method for fitting a break ring between a horizontal mold and a feed nozzle which is horizontally fitted to the lower part of a side wall of a tundish of a horizontal type continuous casting apparatus through a front nozzle, said feed nozzle being adjacent to said front nozzle, said break ring having a tapered outer peri-peral surface and said mold having a tapered surface mat-ching with and receiving said tapered outer peripheral sur-face of said break ring, the method comprising:
engaging said break ring having said tapered outer peripheral surface into said mold having said tapered surface such that said tapered outer peripheral surface of said break ring bears against said tapered surface of said mold; and positively pushing said break ring against said mold through said feed nozzle by means of a counter fitting connected to said feed nozzle to develop a large compres-sive force on said outer tapered surface of said break ring, thereby imparting a large compressive stress to the tapered outer peripheral portion of said break ring for reducing tensile stress caused during casting in the outer peri-pheral portion of said break ring in the circumferential direction thereof by a temperature difference between the outer peripheral portion and the inner peripheral portion of said break ring, thereby constraining thermal expansion of said break ring and thus preventing said break ring from breaking.
engaging said break ring having said tapered outer peripheral surface into said mold having said tapered surface such that said tapered outer peripheral surface of said break ring bears against said tapered surface of said mold; and positively pushing said break ring against said mold through said feed nozzle by means of a counter fitting connected to said feed nozzle to develop a large compres-sive force on said outer tapered surface of said break ring, thereby imparting a large compressive stress to the tapered outer peripheral portion of said break ring for reducing tensile stress caused during casting in the outer peri-pheral portion of said break ring in the circumferential direction thereof by a temperature difference between the outer peripheral portion and the inner peripheral portion of said break ring, thereby constraining thermal expansion of said break ring and thus preventing said break ring from breaking.
2. The method of claim 1, wherein said pushing step comprises mounting a separate counter fitting to said feed nozzle, for pushing said feed nozzle to push said break ring; and clamping said counter fitting to said mold to apply a pushing force against said break ring through said feed nozzle to thereby develop said large compressive force on said outer tapered surface of said break ring.
3. The method of claim 2, wherein said feed nozzle and separate counter fitting have respective matching tapered surfaces which bear against each other for applying clamping force from said counter fitting to said feed nozzle and thereby to said break ring.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8507179A JPS5611164A (en) | 1979-07-06 | 1979-07-06 | Mounting method of break ring in continuous horizontal casting equipment |
| JP85071/79 | 1979-07-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1164623A true CA1164623A (en) | 1984-04-03 |
Family
ID=13848383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000354089A Expired CA1164623A (en) | 1979-07-06 | 1980-06-16 | Method for fitting break ring to mold in horizontal type continuous casting apparatus |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS5611164A (en) |
| BR (1) | BR8004182A (en) |
| CA (1) | CA1164623A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6055211B2 (en) * | 1981-07-03 | 1985-12-04 | 住友金属工業株式会社 | Horizontal continuous casting method |
| US4693296A (en) * | 1985-11-07 | 1987-09-15 | Flo-Con Systems, Inc. | Composite break ring for continuous casting |
| JPH0636962B2 (en) * | 1987-06-05 | 1994-05-18 | 日本鋼管株式会社 | Breaking ring tightening method in horizontal continuous casting |
| DE102007043386B4 (en) * | 2007-09-12 | 2014-02-13 | Gautschi Engineering Gmbh | Mold for continuous casting of metal and method for producing such a mold |
-
1979
- 1979-07-06 JP JP8507179A patent/JPS5611164A/en active Pending
-
1980
- 1980-06-16 CA CA000354089A patent/CA1164623A/en not_active Expired
- 1980-07-04 BR BR8004182A patent/BR8004182A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| BR8004182A (en) | 1981-01-21 |
| JPS5611164A (en) | 1981-02-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |