CN1096722A - Composite monolithic stopper rod and manufacture craft - Google Patents
Composite monolithic stopper rod and manufacture craft Download PDFInfo
- Publication number
- CN1096722A CN1096722A CN 93107549 CN93107549A CN1096722A CN 1096722 A CN1096722 A CN 1096722A CN 93107549 CN93107549 CN 93107549 CN 93107549 A CN93107549 A CN 93107549A CN 1096722 A CN1096722 A CN 1096722A
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- barred body
- stopper
- wire electrode
- alundum
- adhesive
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- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The present invention relates to a kind of stopper of controlling molten steel flow speed, and manufacture technology, its name is called composite monolithic stopper rod and manufacture technology thereof, it is that with the difference of general stopper stopper epimere (3) and hypomere (4) are to be composited by two kinds of different materials, one composite surface (6) is arranged on the barred body, the manufacture technology of barred body is as follows: the mixing ageing mixture dress of raw material 1 mould → raw material 2 mixing ageing mixtures dress mould sealing → static pressure machine moulding → depanning → burning baking → machined into → be coated with antioxidation coating → check → packing → warehouse-in, composite monolithic stopper rod of the present invention is simple in structure, life-span is long, materials are economized, manufacture craft is simple, one-shot forming is not peeled off, burst and bolt failure, the compatibility of storeroom is good.
Description
The present invention relates to a kind of stopper of controlling molten steel flow speed, is the improvement to the stopper production technology, and its name is called composite monolithic stopper rod and manufacture technology thereof.
In the prior art, the stopper that steel mill adopted is mainly modular, for example application number is 92211433.1 utility model patent " stopper ", be by the stopper head and up and down two parts separate piece assemble, two parts separate piece is by connecting bolt is connected, owing between stopper head and each separate piece slit is arranged, the slit is also arranged between each separate piece, molten steel easily enters the stopper in-core by the slit, make connecting bolt is melted, stopper will burst in steel ladle, cause the waste of molten steel, because the temperature of stopper in-core is identical with the temperature of molten steel in the ladle basically, so, connecting bolt is not melted, also can deliquescing, stopper is bent, this stopper serviceability is relatively poor, can only maintain service life about 3-4 hour, to connecting bolt is the long filament bar, and processing is difficulty relatively, in order to improve these problems, once there was the people that stopper is designed to monoblock type, but fail all the time to be achieved owing to there is following deficiency: complex process, raw material is in short supply, cost an arm and a leg, the matching property of storeroom is relatively poor, and ratio is difficult to modulation, brings difficulty to one-shot forming, be easy to generate slight crack during the integral column of sagger high temperature of manufacturing, peel off, cannot accomplish the end in view.
The objective of the invention is to avoid above-mentioned the deficiencies in the prior art, and provide a kind of composite monolithic stopper rod, make the barred body one-shot forming by simple technology, raw material 1 and raw material 2 that heat transfer coefficient is close with the coefficient of expansion are composited, make the barred body two sections become the different layering integral body of material, composite surface is occurred in conjunction with firm ceramic structure, reduced assembling procedure, connecting bolt is not fragile, and stopper can use repeatedly and not bend, and cost is low, use Shou Hechang, do not peel off opening when watering, burst, the anti-erosion of antiscour obviously reduces because of the stopper quality problems, and causes the waste of molten steel.
To achieve these goals, the present invention can adopt following measure to realize, described composite monolithic stopper rod is by barred body, wire electrode, bolt and nut are formed, barred body is to be to protrude spherical hollow barrel the end, it is the stopper head, there is the internal thread more than 15 centimetres barred body epimere inwall upper end, barred body is mainly by alundum (Al, materials such as graphite and adhesive silica are made, wire electrode is one to have externally threaded hollow column structure, bolt is " ┴ " shape bolt that nut has been fixed in the lower end, the inner chamber of wire electrode is passed in the upper end of bolt, upper end at wire electrode is fixed with a nut, wire electrode and barred body epimere inwall are for being threaded, the height that it is characterized in that the stopper head is 4-5: 6-7 with the ratio of the height of barred body epimere, the stopper head mainly adopts alundum (Al, three kinds of materials of graphite and adhesive, the barred body epimere mainly adopts alundum (Al, three kinds of materials of silica and adhesive, stopper head and barred body epimere are compound to be one, one-shot forming has the composite surface of a ceramic structure between stopper head and the barred body epimere.
To achieve these goals, the present invention can also adopt following measure to realize that described composite monolithic stopper rod barred body adopts following technology to finish:
At first with alundum (Al, graphite and adhesive mixing by a certain percentage after again ageing mixture adorn mould after 24 hours, and then with a certain proportion of alundum (Al, silica and adhesive mixing after the ageing mixture isotype sealing of packing into more than 24 hours again, after the isostatic pressing machine moulding, depanning, through roasting and machined into, brushing oxide layer, check, packing and finished product are put in storage again.
In order to be illustrated more clearly in the present invention, the present invention is done further explanation below in conjunction with accompanying drawing:
Fig. 1 is the full sectional view of the front view of composite monolithic stopper rod of the present invention.
Fig. 2 is the user mode schematic diagram of composite monolithic stopper rod of the present invention.
The present invention will be described further in conjunction with the embodiments, and narrate most preferred embodiment of the present invention in conjunction with the accompanying drawings:
Composite monolithic stopper rod is by wire electrode 4, nut 2, nut 5, bolt 1 and barred body are formed, barred body is made up of stopper head 7 and epimere 3, a composite surface 6 is arranged on the barred body, barred body is the hollow barrel, the bucket end, is for protruding spherical, on the inwall of barred body upper end internal thread is arranged, the height of internal thread is 16 centimetres, the diameter at barred body internal thread place is greater than barred body hypomere intracavity diameter, wire electrode 4 is one to have externally threaded hollow column, the lower end of bolt 1 is fixedly connected nut 5, the inner chamber of wire electrode 4 is passed in the upper end of bolt 1, the upper end nut 2 of barred body is threaded with bolt 1, and wire electrode 4 is threaded with barred body inner chamber upper end, and the barred body of present embodiment is to adopt following craftwork manufacture to finish:
Alundum (Al 68%
Graphite 27%
Aerodux 5%
Alundum (Al 63%
Silica 26%
Aerodux 11%
At first with raw material 1 at the 40-50 ℃ of dress mould that is mixed, then raw material 2 being remained on 40-50 ℃ of (dress) sealing that is mixed adorns in the same mould, the weight of raw material 1 accounts for 4/7 of whole barred body weight, the weight of raw material 2 accounts for 3/7 of whole barred body weight, could be behind the requirement ageing mixture (the ageing mixture time was greater than 24 hours) the moulding of static pressure machine (the static pressure machine promptly waits the moulding of static pressure high-pressure bottle), next procedure is depanning and roasting, roasting is to adopt the muffle method, burning till 1280 ℃ in nonoxidizing atmosphere freely heats up, be incubated 5 hours, cooling naturally is designed to 70 centimeter length according to big young pathbreaker's stopper of ladle, on lathe, the stopper outer surface of rod is processed into smooth cylinder, the stopper head is processed into circle, and composite surface also will be through check from a cross section of stopper head 40 centimeters, be coated with antioxidation coating, packing, warehouse-in is just really finished barred body of the present invention.Fig. 2 represents the ruuning situation of stopper of the present invention in ladle 9, by moving up and down of barred body, makes molten steel mouth place molten steel flow speed difference, and an end of lever 10 is fixed on the upper end of bolt 1, and lever 10 is around fulcrum 11 swings.
Enforcement of the present invention has following advantage:
Because excellent two sections adopt the raw material of unlike material to be composited, composite surface occurs in conjunction with firm ceramic structure, thereby, not only improved serviceability, reduced cost significantly, manufacture technology is simple, makes the barred body one-shot forming of unlike material, with heat transfer coefficient and the coefficient of expansion as one very important parameters take into account, and be resolved, the present invention opens when burning and does not peel off, burst, bolt is not fragile, can use repeatedly, stopper does not bend, life-span, technology was simple more than 6 hours, the inexpensive practicality of raw material, the compatibility of storeroom is better, the ratio modulation rationally brings convenience to one-shot forming, has reached design purpose.
Claims (2)
1, a kind of composite monolithic stopper rod is by barred body, wire electrode (4), bolt (1), nut (2) and nut (5) are formed, barred body is to be to protrude spherical barrel the end, be stopper head (7), internal thread more than 15 centimetres is arranged on barred body epimere (3) inwall, wire electrode (4) is one to have externally threaded hollow column structure, bolt (1) has been fixed " ⊥ " type bolt of nut (5) for the lower end, bolt passes the inner chamber of wire electrode (4), upper end at wire electrode (4) is fixed with a nut, wire electrode (4) and barred body epimere (3) inwall are for being threaded, barred body is mainly used alundum (Al, graphite, four kinds of materials of silica and adhesive are manufactured and are formed, it is characterized in that stopper head (7) mainly adopts alundum (Al, three kinds of materials of graphite and adhesive are manufactured and are formed, barred body epimere (3) mainly adopts alundum (Al, three kinds of materials of silica and adhesive are manufactured and are formed, stopper head (7) is compound with barred body epimere (3), become an integral body, one-shot forming has the composite surface (6) of a ceramic structure between stopper head (7) and the barred body epimere (3).
2, the manufacture technology of the described composite monolithic stopper rod barred body of a kind of making claim (1) is as follows:
At first the mixing by a certain percentage ageing mixture of alundum (Al, graphite and adhesive was adorned mould after 24 hours, and then with the isotype sealing of packing into after 24 hours of the mixing by a certain percentage ageing mixture of alundum (Al, aluminium oxide and adhesive, after the isostatic pressing machine moulding, depanning is again through roasting.Machined into, brushing oxide layer, check, packing and finished product warehouse-in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93107549 CN1096722A (en) | 1993-06-25 | 1993-06-25 | Composite monolithic stopper rod and manufacture craft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93107549 CN1096722A (en) | 1993-06-25 | 1993-06-25 | Composite monolithic stopper rod and manufacture craft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1096722A true CN1096722A (en) | 1994-12-28 |
Family
ID=4986763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93107549 Pending CN1096722A (en) | 1993-06-25 | 1993-06-25 | Composite monolithic stopper rod and manufacture craft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1096722A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100406163C (en) * | 2002-03-14 | 2008-07-30 | 山东东耐高温材料有限公司 | Compound integral column of sagger |
| CN102189248A (en) * | 2011-05-24 | 2011-09-21 | 浙江省长兴铁狮耐火材料有限公司 | Ceramic combined type integral stopper rod and production process thereof |
| CN104671754A (en) * | 2015-03-18 | 2015-06-03 | 淄博倍辰陶瓷器材有限公司 | Thread processing method for aluminum oxide ceramics |
| CN108284217A (en) * | 2018-03-05 | 2018-07-17 | 北京利尔高温材料股份有限公司 | A kind of stopper and preparation method thereof of continuous casting purification molten steel effect |
| CN108568515A (en) * | 2018-06-14 | 2018-09-25 | 刘中原 | One kind precisely aligning stopper device and stopper rod of tundish Alignment Process |
-
1993
- 1993-06-25 CN CN 93107549 patent/CN1096722A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100406163C (en) * | 2002-03-14 | 2008-07-30 | 山东东耐高温材料有限公司 | Compound integral column of sagger |
| CN102189248A (en) * | 2011-05-24 | 2011-09-21 | 浙江省长兴铁狮耐火材料有限公司 | Ceramic combined type integral stopper rod and production process thereof |
| CN102189248B (en) * | 2011-05-24 | 2012-09-05 | 浙江省长兴铁狮耐火材料有限公司 | Ceramic combined type integral stopper rod and production process thereof |
| CN104671754A (en) * | 2015-03-18 | 2015-06-03 | 淄博倍辰陶瓷器材有限公司 | Thread processing method for aluminum oxide ceramics |
| CN108284217A (en) * | 2018-03-05 | 2018-07-17 | 北京利尔高温材料股份有限公司 | A kind of stopper and preparation method thereof of continuous casting purification molten steel effect |
| CN108568515A (en) * | 2018-06-14 | 2018-09-25 | 刘中原 | One kind precisely aligning stopper device and stopper rod of tundish Alignment Process |
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Legal Events
| Date | Code | Title | Description |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |