CN201603867U - Combined-type stopper rod with rod head structure - Google Patents
Combined-type stopper rod with rod head structure Download PDFInfo
- Publication number
- CN201603867U CN201603867U CN2010201385742U CN201020138574U CN201603867U CN 201603867 U CN201603867 U CN 201603867U CN 2010201385742 U CN2010201385742 U CN 2010201385742U CN 201020138574 U CN201020138574 U CN 201020138574U CN 201603867 U CN201603867 U CN 201603867U
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- China
- Prior art keywords
- caput
- stopper body
- rod
- rod head
- head structure
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- 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 - Lifetime
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- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
A combined-type stopper rod with a rod head structure comprises a stopper rod body (1), and an internal cavity chamber (2) positioned inside the stopper rod body (1), and is characterized in that a rod head structural layer (3) is arranged at the tail end of the stopper rod body (1). The combined-type stopper rod with the rod head structure, provided by the utility model, is composed of a rod body and a rod head, wherein the rod head adopts a combined-type structure made of metal or non-metallic materials. The stopper rod has stronger erosion resisting performance, stronger molten steel erosion resisting capability, and excellent heat shock resisting performance, has long service life when being used for continuous casting steel and particularly calcium treated steel, meets the increasingly rising requirements of long time and high efficiency of continuous steel pouring.
Description
Technical field
The utility model relates to and a kind ofly is used to control melted material and passes the device that submersed nozzle flows, especially a kind of composite rod head structure plugging rod from container.
Background technology
At present, stopper is elongated open tubular column structure, and circular or conical stopper head are arranged in the bottom, be applicable to the venturi that inserts corresponding discharge geat, and stopper comprises the jockey of definite shape in the upper end, so that stopper is fixed on the outside rising structure, thereby control is flowed.Stopper is widely used in the control motlten metal and takes advantage of the container of fused solution from being installed in dress, for example control motlten metal and discharge, be usually used in making steel to be poured in the water-cooled mould via geat and refractory brick cover youngster by opening in the tundish bottom from the geat of the bottom of casting ladle or tundish.
In continuous casting is handled, use is injected into the quality that gas below the stopper can obviously help the metal cast, can inject such as inert gases such as argon gas or nitrogen, so that reduce the problem that causes because of the accumulation of aluminium oxide and obstruction, also help to remove cured product near the outlet, usually, stopper provides internal chamber, this internal chamber at one end is connected with compressed air source unit, is connected with gas discharge outlet at the other end.
Stopper is applied to tundish, and its major function is to regulate and control the switching of molten steel, control tundish to the molten steel flow of crystallizer and the fluidized bed in the crystallizer.The service condition of stopper is relatively harsh, should bear not oxidation of high-temperature baking, water the steel initial stage and do not ftracture, and is immersed in for a long time again and stands washing away, corroding of molten steel in the molten steel.At present, rod stature material can both satisfy instructions for use, and caput, general aluminium carbonaceous, aluminium zirconium carbonaceous, common magnesia and magnesium aluminate spinel matter can satisfy most of steel grades, but for calcium treated steel, preceding several types caput is unable to bear for a long time and washes away, corrodes, and damage is serious, and occur easily turning around, phenomenon such as cracking, can not satisfy the instructions for use of long-time casting.
Summary of the invention
The utility model purpose provides a kind of composite rod head structure plugging rod, adopt metal or nonmetallic materials and composite structure to make, factors such as the difference and causing that has solved excellent body and first two different materials thermal coefficient of expansion of rod turns around, cracking can satisfy the direct casting demand of calcium treated steel.
The technical solution of the utility model is:
A kind of composite rod head structure plugging rod comprises the stopper body and is positioned at the intrinsic internal chamber of stopper that described stopper body tip is provided with the caput structure sheaf.
Described stopper body head end is taper, the tapered hood-like structure of caput structure sheaf, and the outer surface of cone shape of its inner surface configuration and stopper body head end matches.
The outer surface of described caput structure sheaf and this external surface of stopper are rounding off.
The material of described stopper body is an aluminum-carbon refractory material.The height H of described caput structure sheaf is 5-250MM.The thickness L of described caput structure sheaf is 5-50MM.
The thermal coefficient of expansion of described caput structure sheaf is not less than the thermal coefficient of expansion of stopper body.
Described internal chamber is in communication with the outside by gas passage, and the stopper body is provided with the passage that is connected with the caput structure sheaf, constitutes gas passage jointly.
Described gas passage is one section isodiametric tubular conduit or waney tapered channel or waney step passage.
The beneficial effects of the utility model are:
Composite rod head structure plugging rod of the present utility model is made up of excellent body and caput, caput adopts metal or nonmetallic materials and composite structure to make, so, this stopper has stronger scour resistance, stronger anti-molten steel erosiveness, excellent thermal shock resistance, being used for continuous casting steel, particularly long service life during calcium treated steel, satisfied and watered long-time, the high efficiency continuous casting requirement that steel improves day by day continuously.
Because the material particularity of caput structure sheaf of the present utility model, its anti-molten steel scouring, erosion and thermal shock resistance are excellent especially, for reaching the integral coherence of caput structure sheaf and body, so adopted the special composite construction of this caput, the premium properties of whole stopper is all brought into play, reached optimum efficiency.
Stopper body of the present utility model and caput structure sheaf adopt two kinds of materials having different thermal expansion coefficient to make, and make between stopper body and the caput structure sheaf to have overcome the drawback of the easy breaking releasings of connected mode such as being threaded in conjunction with close and firm.
Description of drawings
Fig. 1 is the structural representation of one of composite rod head structure plugging rod of the present utility model.
Fig. 2 is two a structural representation of composite rod head structure plugging rod of the present utility model.
Among the figure: 1 is that stopper body, 2 is that internal chamber, 3 is that caput structure sheaf, 4 is that gas passage, 5 is head end.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described.
A kind of composite rod head structure plugging rod, the internal chamber 2 that comprises stopper body 1 and be positioned at stopper body 1, described stopper body 1 end is provided with caput structure sheaf 3.
The outer surface of caput structure sheaf 3 and stopper body 1 outer surface are rounding off.Stopper body 1 head end 5 is less, and stopper body 1 is provided with ledge structure, and on stopper body 1, stopper body 1 and caput structure sheaf 3 look as a whole to caput structure sheaf 3 by heat expansion mode inlay card, guarantees that the global shape and the function of stopper is unaffected.
The material of stopper body 1 is an aluminum-carbon refractory material.The height H of caput structure sheaf 3 is 5-250MM.The thickness L of caput structure sheaf 3 is 5-50MM.The shape of caput structure sheaf 3, size are done concrete adjustment as required.To guarantee the uniformity of enough mechanical strengths and stopper global shape.
The thermal coefficient of expansion of caput structure sheaf 3 is not less than the thermal coefficient of expansion of stopper body 1.Still can firmly be connected all the time with caput structure sheaf 3 with the stopper body 1 that guarantees stopper under worst hot case.
Can gas passage 4 be set, as shown in Figure 1 as required.
Also gas passage 4 can be set, internal chamber 2 is an enclosed construction, as shown in Figure 2.
Claims (9)
1. composite rod head structure plugging rod, the internal chamber (2) that comprises stopper body (1) and be positioned at stopper body (1) is characterized in that described stopper body (1) end is provided with caput structure sheaf (3).
2. composite rod head structure plugging rod according to claim 1, it is characterized in that described stopper body (1) head end (5) is taper, the tapered hood-like structure of caput structure sheaf (3), the outer surface of cone shape of its inner surface configuration and stopper body (1) head end (5) matches.
3. composite rod head structure plugging rod according to claim 2 is characterized in that the outer surface of described caput structure sheaf (3) and stopper body (1) outer surface are rounding off.
4. composite rod head structure plugging rod according to claim 1 and 2, the material that it is characterized in that described stopper body (1) is an aluminum-carbon refractory material.
5. composite rod head structure plugging rod according to claim 1 and 2, the height H that it is characterized in that described caput structure sheaf (3) is 5-250MM.
6. composite rod head structure plugging rod according to claim 1 and 2, the thickness L that it is characterized in that described caput structure sheaf (3) is 5-50MM.
7. composite rod head structure plugging rod according to claim 1 and 2 is characterized in that the thermal coefficient of expansion of described caput structure sheaf (3) is not less than the thermal coefficient of expansion of stopper body (1).
8. composite rod head structure plugging rod according to claim 1, it is characterized in that described internal chamber (2) is in communication with the outside by gas passage (4), stopper body (1) is provided with the passage that is connected with caput structure sheaf (3), constitutes gas passage (4) jointly.
9. composite rod head structure plugging rod according to claim 1 is characterized in that described gas passage (4) is one section isodiametric tubular conduit or waney tapered channel or waney step passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201385742U CN201603867U (en) | 2010-03-23 | 2010-03-23 | Combined-type stopper rod with rod head structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201385742U CN201603867U (en) | 2010-03-23 | 2010-03-23 | Combined-type stopper rod with rod head structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201603867U true CN201603867U (en) | 2010-10-13 |
Family
ID=42948576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201385742U Expired - Lifetime CN201603867U (en) | 2010-03-23 | 2010-03-23 | Combined-type stopper rod with rod head structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201603867U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101774015A (en) * | 2010-03-23 | 2010-07-14 | 华耐国际（宜兴）高级陶瓷有限公司 | Composite rod head structure plugging rod |
| CN102039403A (en) * | 2011-01-18 | 2011-05-04 | 北京利尔高温材料股份有限公司 | Method for manufacturing spinel composite monoblock stopper for continuous casting of low-carbon free-cutting steel |
-
2010
- 2010-03-23 CN CN2010201385742U patent/CN201603867U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101774015A (en) * | 2010-03-23 | 2010-07-14 | 华耐国际（宜兴）高级陶瓷有限公司 | Composite rod head structure plugging rod |
| CN102039403A (en) * | 2011-01-18 | 2011-05-04 | 北京利尔高温材料股份有限公司 | Method for manufacturing spinel composite monoblock stopper for continuous casting of low-carbon free-cutting steel |
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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 |
Granted publication date: 20101013 |
|
| CX01 | Expiry of patent term |