CN205732956U - A kind of continuous casting production Quick change upper nozzle - Google Patents
A kind of continuous casting production Quick change upper nozzle Download PDFInfo
- Publication number
- CN205732956U CN205732956U CN201620020703.5U CN201620020703U CN205732956U CN 205732956 U CN205732956 U CN 205732956U CN 201620020703 U CN201620020703 U CN 201620020703U CN 205732956 U CN205732956 U CN 205732956U
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- zirconium core
- diameter
- parent
- hole
- taper hole
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/50—Pouring-nozzles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
This utility model provides a kind of continuous casting production Quick change upper nozzle, including parent, the upper end external diameter of parent is less than lower end external diameter, step is set bottom parent, zirconium core bore and taper hole is offered in the middle part of parent, taper hole is positioned at above zirconium core bore, zirconium core is installed in zirconium core bore, in the bottom face of zirconium core and the bottom face of parent are generally aligned in the same plane, the upper surface of zirconium core is positioned at the minor diameter of taper hole, the external diameter of zirconium core is more than the end diameter of taper hole, through hole is offered at the middle part of zirconium core, the upper end of through hole is connected with the smaller diameter end of taper hole, the upper end diameter of through hole is equal with the end diameter of taper hole, in the major diameter end face of taper hole and the upper surface of parent are generally aligned in the same plane.Filling pipe end of the present utility model trial show that, service life improves, and STEELMAKING PRODUCTION cost, the accurate positioning of zirconium core is greatly reduced, will not produce shifting, stable with the installation fit quality of tundish, does not haves and wears steel phenomenon.The advantages such as this utility model has simplified manufacturing process, and production cost is low.
Description
Technical field
This utility model relates to steel-making continuous casting equipment part, is a kind of continuous casting production Quick change upper nozzle.
Background technology
The continuous casting intermediate inlet that steel enterprise uses is through improvement in recent years, existing preferable service life, this service life be deformed with filling pipe end, non-serviceable being as the criterion of ftractureing, owing to it is at high temperature to work, it is mounted in again in tundish, replacing with the mouth of a river then to need to change tundish, therefore, the service life of filling pipe end directly affects the service life of tundish.The deformation of filling pipe end, cracking etc. damage, and depend primarily on the zirconium core in filling pipe end.The zirconium core of the filling pipe end of existing all shapes is all the middle part being positioned at filling pipe end parent from top to bottom, in use, molten steel directly impacts zirconium core upper end, makes zirconium core produce fine cracks, along with the prolongation of the time of use, fine cracks becomes larger, produces cracking, or cause filling pipe end to deform, and make the life-span of filling pipe end be up to 70 hours, major part is below 50 hours, the replacing causing tundish is frequent, the more difficult reduction of cost of STEELMAKING PRODUCTION.
Utility model content
The purpose of this utility model is to provide a kind of continuous casting production Quick change upper nozzle, and it can solve the deficiencies in the prior art.
This utility model is for achieving the above object, it is achieved through the following technical solutions: a kind of continuous casting production Quick change upper nozzle, including parent, the upper end external diameter of parent is less than lower end external diameter, step is set bottom parent, zirconium core bore and taper hole is offered in the middle part of parent, taper hole is positioned at above zirconium core bore, zirconium core is installed in zirconium core bore, in the bottom face of zirconium core and the bottom face of parent are generally aligned in the same plane, the upper surface of zirconium core is positioned at the minor diameter of taper hole, the external diameter of zirconium core is more than the end diameter of taper hole, through hole is offered at the middle part of zirconium core, the upper end of through hole is connected with the smaller diameter end of taper hole, the upper end diameter of through hole is equal with the end diameter of taper hole, in the major diameter end face of taper hole and the upper surface of parent are generally aligned in the same plane.The outside diameter of taper hole is less than the maximum outside diameter of zirconium core.Zirconium core is cylinder.The top of zirconium core is cylinder, arranges zirconium core step bottom zirconium core.Iron-clad is installed on step outer wall.The upper end diameter of through hole is equal with the end diameter of taper hole.Offer the first blind hole on step, the end face of big end external diameter parent offered the second blind hole, the first blind hole and the second blind hole and is 90 ° of distributions and communicates, the end face of big end external diameter parent offers annular groove, annular groove and the second blind hole and communicates,
This utility model changes filling pipe end for a long time and installs the structure of zirconium core, thoroughly solve zirconium core in use, molten steel the most directly impacts the deficiency that zirconium core cracks, molten steel is made first to impact the inwall of taper hole subsequently into zirconium core, moment before molten steel impact zirconium core makes zirconium core heat, it is to avoid crack.Filling pipe end of the present utility model trial show that, service life improved to 110-150 hour, was greatly improved service life than prior art, STEELMAKING PRODUCTION cost, the accurate positioning of zirconium core are greatly reduced, shifting will not be produced, stable with the installation fit quality of tundish, do not have yet and wear steel phenomenon.The advantages such as structure of the present utility model also has simplified manufacturing process, and production cost is low.
Accompanying drawing explanation
Accompanying drawing 1 is one of this utility model embodiment structural representation；Accompanying drawing 2 be accompanying drawing 1 look up structural representation；Accompanying drawing 3 is two structural representations of this utility model embodiment；Accompanying drawing 4 be accompanying drawing 3 look up structural representation.
Detailed description of the invention
This utility model is described further by comparison accompanying drawing.
A kind of continuous casting production Quick change upper nozzle of the present utility model, including parent 2, the upper end external diameter of parent 2 is less than lower end external diameter, step 7 is set bottom parent 2, zirconium core bore 6 and taper hole 1 is offered in the middle part of parent 2, taper hole 1 is positioned at above zirconium core bore 6, zirconium core 3 is installed in zirconium core bore 6, the bottom face of zirconium core 3 is generally aligned in the same plane interior with the bottom face of parent 2, the upper surface of zirconium core 3 is positioned at the minor diameter of taper hole 1, the external diameter of zirconium core 3 is more than the end diameter of taper hole 1, through hole 5 is offered at the middle part of zirconium core 3, the upper end of through hole 5 is connected with the smaller diameter end of taper hole 1, the upper end diameter of through hole 5 is equal with the end diameter of taper hole 1, in the major diameter end face of taper hole 1 and the upper surface of parent 2 are generally aligned in the same plane.This utility model said structure is greatly improved service life, and the structure of bellmouth can make molten steel avoid directly to impact zirconium core 3, and makes zirconium core 3 be accurately positioned, and zirconium core 3 can save the production technology of pug in installation process.
Further scheme of the present utility model is: the outside diameter of taper hole 1 is less than the maximum outside diameter of zirconium core 3.This structure can be further ensured that the service life of filling pipe end, and makes zirconium core 3 accurate positioning.
One of shape preferred version of zirconium core 3 described in the utility model is cylinder, and this structure is easy to manufacture and install.Another preferred version be the top of zirconium core 3 be cylinder, zirconium core step 8 is set bottom zirconium core 3.This staircase structural model makes the thickness of zirconium core wall reduce about 1/5th in the case of equal service life, and makes the location of zirconium core 3 more firm.The scheme of iron-clad 4 is installed, by increasing capacitance it is possible to increase the intensity at parent step on step 7 outer wall described in the utility model.
The upper end diameter of through hole 5 described in the utility model is equal with the end diameter of taper hole 1, and this structure avoids molten steel directly to impact zirconium core 3, prevents zirconium core 3 from cracking, and improves the service life of filling pipe end further.
The first blind hole 11 is offered on step 7 described in the utility model, the second blind hole 10 is offered on the end face of big end external diameter parent 2, first blind hole 11 and the second blind hole 10 in 90 ° of distributions and communicate, annular groove 9 is offered on the end face of big end external diameter parent 2, annular groove 9 communicates with the second blind hole 10, argon is passed directly into Metal in Tundish surface by said structure, to improve product quality.
Claims (7)
- null1. a continuous casting production Quick change upper nozzle，Including parent (2)，The upper end external diameter of parent (2) is less than lower end external diameter，Parent (2) bottom arranges step (7)，It is characterized in that: zirconium core bore (6) and taper hole (1) are offered in parent (2) middle part，Taper hole (1) is positioned at zirconium core bore (6) top，Zirconium core (3) is installed in zirconium core bore (6)，The bottom face of zirconium core (3) is generally aligned in the same plane interior with the bottom face of parent (2)，The upper surface of zirconium core (3) is positioned at the minor diameter of taper hole (1)，The external diameter of zirconium core (3) is more than the end diameter of taper hole (1)，Through hole (5) is offered at the middle part of zirconium core (3)，The upper end of through hole (5) is connected with the smaller diameter end of taper hole (1)，The upper end diameter of through hole (5) is equal with the end diameter of taper hole (1)，The major diameter end face of taper hole (1) is generally aligned in the same plane interior with the upper surface of parent (2).
- A kind of continuous casting production Quick change upper nozzle the most according to claim 1, it is characterised in that: the outside diameter of taper hole (1) is less than the maximum outside diameter of zirconium core (3).
- A kind of continuous casting production Quick change upper nozzle the most according to claim 1, it is characterised in that: zirconium core (3) is cylinder.
- A kind of continuous casting production Quick change upper nozzle the most according to claim 1, it is characterised in that: the top of zirconium core (3) is cylinder, and zirconium core (3) bottom arranges zirconium core step (8).
- A kind of continuous casting production Quick change upper nozzle the most according to claim 1, it is characterised in that: iron-clad (4) is installed on step (7) outer wall.
- A kind of continuous casting production Quick change upper nozzle the most according to claim 1, it is characterised in that: the upper end diameter of through hole (5) is equal with the end diameter of taper hole (1).
- A kind of continuous casting production Quick change upper nozzle the most according to claim 1, it is characterized in that: on step (7), offer the first blind hole (11), the second blind hole (10) is offered on the end face of big end external diameter parent (2), first blind hole (11) and the second blind hole (10) in 90 ° of distributions and communicate, offering annular groove (9) on the end face of big end external diameter parent (2), annular groove (9) communicates with the second blind hole (10).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2015109750188 | 2015-12-23 | ||
| CN201510975018 | 2015-12-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205732956U true CN205732956U (en) | 2016-11-30 |
Family
ID=55493321
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620020703.5U Active CN205732956U (en) | 2015-12-23 | 2016-01-11 | A kind of continuous casting production Quick change upper nozzle |
| CN201610014559.9A Pending CN105414539A (en) | 2015-12-23 | 2016-01-11 | Quick-changing upper nozzle of continuous casting tundish |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610014559.9A Pending CN105414539A (en) | 2015-12-23 | 2016-01-11 | Quick-changing upper nozzle of continuous casting tundish |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN205732956U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105414539A (en) * | 2015-12-23 | 2016-03-23 | 济南麦哈勃冶金技术开发有限公司 | Quick-changing upper nozzle of continuous casting tundish |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112756598A (en) * | 2021-01-22 | 2021-05-07 | 江苏高鑫高温新材料科技有限公司 | Flushing-resistant wear-resistant ultra-long-life tundish water feeding port |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4644044B2 (en) * | 2004-10-04 | 2011-03-02 | 黒崎播磨株式会社 | Long nozzle for continuous casting |
| CN202212547U (en) * | 2011-03-02 | 2012-05-09 | 济南新峨嵋实业有限公司 | Tundish nozzle |
| CN202129441U (en) * | 2011-06-05 | 2012-02-01 | 淄博鑫耐达耐火材料股份有限公司 | Quick plate blank change argon-blowing-type filling pipe end |
| CN202291393U (en) * | 2011-09-15 | 2012-07-04 | 济南麦哈勃冶金技术开发有限公司 | Quick-change water supply port in tundish |
| CN102416451B (en) * | 2011-12-12 | 2013-07-10 | 辽宁科技大学 | Anti-plugging tundish water supplying opening and manufacturing method thereof |
| CN205732956U (en) * | 2015-12-23 | 2016-11-30 | 济南麦哈勃冶金技术开发有限公司 | A kind of continuous casting production Quick change upper nozzle |
-
2016
- 2016-01-11 CN CN201620020703.5U patent/CN205732956U/en active Active
- 2016-01-11 CN CN201610014559.9A patent/CN105414539A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105414539A (en) * | 2015-12-23 | 2016-03-23 | 济南麦哈勃冶金技术开发有限公司 | Quick-changing upper nozzle of continuous casting tundish |
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| Publication number | Publication date |
|---|---|
| CN105414539A (en) | 2016-03-23 |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |