CN201313176Y - Specially-shaped immersion type water opening provided for continuous casting of sheet billet - Google Patents
Specially-shaped immersion type water opening provided for continuous casting of sheet billet Download PDFInfo
- Publication number
- CN201313176Y CN201313176Y CNU2008202213426U CN200820221342U CN201313176Y CN 201313176 Y CN201313176 Y CN 201313176Y CN U2008202213426 U CNU2008202213426 U CN U2008202213426U CN 200820221342 U CN200820221342 U CN 200820221342U CN 201313176 Y CN201313176 Y CN 201313176Y
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- Prior art keywords
- water opening
- continuous casting
- type water
- immersion type
- slag line
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- 238000009749 continuous casting Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract description 10
- 238000007654 immersion Methods 0.000 title abstract 6
- 239000002893 slag Substances 0.000 claims abstract description 23
- 238000010079 rubber tapping Methods 0.000 claims abstract description 13
- 230000007704 transition Effects 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 abstract description 11
- 239000010959 steel Substances 0.000 abstract description 11
- 238000005266 casting Methods 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 235000012771 pancakes Nutrition 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
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Abstract
The utility model relates to an immersion type water opening in the continuous casting technology and mainly discloses a specially-shaped immersion type water opening used for continuous casting of sheet billets. The linear transition is adopted from the extension end 1 of the immersion type water opening to the lower end part 3 of a slag line on the outer wall, the thickness of a slag line 2 is equal to or more than 25 mm, the outer wall of a steel tapping hole part 4 is parallel with the axial line of the water opening, the thickness is equal to or less than 200 mm, and the linear transition is adopted between the lower end part 3 of the slag line and the steel tapping hole part 4. The immersion type water opening used for continuous casting of the sheet billets not only can remarkably increase the casting charge number, but also can effectively avoid various accidents such as adhesion between the water opening and the steel casing, fracture at the root part of the immersion type water opening, and the like.
Description
Technical field
The utility model belongs to the continuous casting technology field, relates generally to a kind of submerged nozzle for continuous casting of thin slabs of distinctive appearance.
Background technology
In the continuous casting process of molten steel, submersed nozzle imports molten steel in the crystallizer by tundish, except having the effect that prevents molten steel oxidation, main is control and improves the flow regime of molten steel in crystallizer, reduce molten steel to the impact of solidified shell, the heat that disperses beam to bring into, impel the base shell that in crystallizer, forms stable, evenly grow and promote field trash in crystallizer, to float.Compare with common continuous casting, the characteristics of sheet blank continuous casting are that the crystallizer space is little, and pulling rate is fast, the molten steel surface wave takes place easily roll up slag greatly and open molten steel splash phenomenon when watering, accidents such as the unreasonable easy generation bleedout of Flow Field Distribution, thereby the structure of used submersed nozzle had higher requirement.Because crystallizer is narrow, the size-constrained system in the mouth of a river can only be made pancake, and size can not be too big, must adapt to the space of crystallizer, with prevent to stick together in addition the mouth of a river from the accident of root fracture, as shown in Figures 1 and 2.In addition, the space that promotes slag line material corrosion resistance from the material aspect is less, increasing slag line thickness is an effective way that improves the casting heat, yet mouth of a river thickness direction is a linear transitions, referring to Fig. 1, the increase of slag line thickness must cause the tapping hole spot size to increase, and has increased and molten steel adhesion even the mouth of a river probability from the root fracture accident.
At present China's sheet blank continuous casting has had large development, built up ten surplus a production line.Domesticly developed supporting with it multiple submersed nozzle, as CN91227348.8, CN92223447.7, CN200410060353.7, CN200420090590.3, CN99204644.0, CN200720011852, the submerged nozzle for continuous casting of thin slabs that CN200720012995 etc. propose, but they only pay attention to the internal structure of submersed nozzle, by adjusting the structural parameters of submersed nozzle endoporus, and then reach the purpose of optimizing the crystallizer flow field, increase the casting heat and improve the problems such as security of the mouth of a river when using by changing mouth of a river profile.
Summary of the invention
The purpose of this utility model is to propose a kind of submerged nozzle for continuous casting of thin slabs with distinctive appearance, can increase to connect to water heat, prevents to water the adhesion at the strand shell and the mouth of a river even the accident that ruptures from root in the mouth of a river.
The purpose of this utility model can adopt following technical scheme to realize: a kind of submerged nozzle for continuous casting of thin slabs with distinctive appearance, and described submersed nozzle is linear transitions by expansion end to the slag line bottom on outer wall, make slag line thickness 〉=25mm; The tapping hole position outer wall at the mouth of a river is parallel to nozzle axis, thickness≤20mm, and make slag line bottom and tapping hole position be linear transitions.
The utility model compared with prior art because slag lining is thicker, has improved the corrosion resistance of slag line, has improved the casting heat, and can effectively avoid the generation of accidents such as boring a hole.The tapping hole spot size is thinner, has increased the useful space between submersed nozzle and the crystallizer, and there is positive effect at the adhesion even the mouth of a river that prevents the box hat and the mouth of a river from the root fracture.
Description of drawings
Fig. 1 is the structural representation of existing submersed nozzle.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the utility model structural representation.
Fig. 4 is the A-A cutaway view of Fig. 3.
Among the figure, 1, expansion end, 2, slag line, 3, the slag line bottom, 4, tapping hole.
The specific embodiment
In conjunction with the accompanying drawing that provides, embodiment is specified to the utility model.
As shown in Figure 3 and Figure 4, its expansion end 1 of submersed nozzle in the transition of reaching the standard grade property of outer wall, guarantees that the minimum thickness of slag line 2 is 25mm to slag line bottom 3.Tapping hole 4 thickness are 18mm, and outer wall parallels to the axis.Tapping hole 4 adopts linear transitions among a small circle with the slag line bottom, and transitional region length is 10mm.
Shown in accompanying drawing 3 and accompanying drawing 4, submersed nozzle expansion end 1 in the transition of reaching the standard grade property of outer wall, guarantees that the minimum thickness of slag line 2 is 28mm to slag line bottom 3.Tapping hole 4 thickness are 20mm, and outer wall parallels to the axis.Tapping hole 4 adopts linear transitions among a small circle with the slag line bottom, and transitional region length is 10mm.
Claims (1)
1, a kind of submerged nozzle for continuous casting of thin slabs with distinctive appearance, it is characterized in that: described submersed nozzle by expansion end (1) to slag line bottom (3) in the transition of reaching the standard grade property of outer wall, slag line (2) thickness 〉=25mm, tapping hole position (4) outer wall is parallel to nozzle axis, thickness≤20mm, slag line bottom (3) are linear transitions with tapping hole position (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202213426U CN201313176Y (en) | 2008-11-27 | 2008-11-27 | Specially-shaped immersion type water opening provided for continuous casting of sheet billet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202213426U CN201313176Y (en) | 2008-11-27 | 2008-11-27 | Specially-shaped immersion type water opening provided for continuous casting of sheet billet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201313176Y true CN201313176Y (en) | 2009-09-23 |
Family
ID=41124964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202213426U Expired - Lifetime CN201313176Y (en) | 2008-11-27 | 2008-11-27 | Specially-shaped immersion type water opening provided for continuous casting of sheet billet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201313176Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102950275A (en) * | 2012-10-16 | 2013-03-06 | 中冶南方工程技术有限公司 | Multi-hole continuous-casting submersed nozzle for square and round billets |
| CN104096812A (en) * | 2013-04-15 | 2014-10-15 | 维苏威高级陶瓷(苏州)有限公司 | Thin billet plate fast-to-replace submerged nozzle |
| WO2015189742A1 (en) * | 2014-06-11 | 2015-12-17 | Arvedi Steel Engineering S.P.A. | Thin slab nozzle for distributing high mass flow rates |
| CN108025352A (en) * | 2015-11-10 | 2018-05-11 | 黑崎播磨株式会社 | Dipping spray nozzle |
-
2008
- 2008-11-27 CN CNU2008202213426U patent/CN201313176Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102950275A (en) * | 2012-10-16 | 2013-03-06 | 中冶南方工程技术有限公司 | Multi-hole continuous-casting submersed nozzle for square and round billets |
| CN102950275B (en) * | 2012-10-16 | 2014-12-17 | 中冶南方工程技术有限公司 | Multi-hole continuous-casting submersed nozzle for square and round billets |
| CN104096812A (en) * | 2013-04-15 | 2014-10-15 | 维苏威高级陶瓷(苏州)有限公司 | Thin billet plate fast-to-replace submerged nozzle |
| WO2015189742A1 (en) * | 2014-06-11 | 2015-12-17 | Arvedi Steel Engineering S.P.A. | Thin slab nozzle for distributing high mass flow rates |
| RU2679664C2 (en) * | 2014-06-11 | 2019-02-12 | Арведи Стил Энджиниринг С.П.А. | Nozzle for molding thin slabs for distributing molten metal at high mass-flow rate |
| US10569326B2 (en) | 2014-06-11 | 2020-02-25 | Arvedi Steel Engineering S.P.A. | Thin slab nozzle for distributing high mass flow rates |
| CN108025352A (en) * | 2015-11-10 | 2018-05-11 | 黑崎播磨株式会社 | Dipping spray nozzle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090923 |