CN106141157A - Anti-blocking immersion nozzle for molten steel water conservancy diversion - Google Patents
Anti-blocking immersion nozzle for molten steel water conservancy diversion Download PDFInfo
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- CN106141157A CN106141157A CN201510125542.6A CN201510125542A CN106141157A CN 106141157 A CN106141157 A CN 106141157A CN 201510125542 A CN201510125542 A CN 201510125542A CN 106141157 A CN106141157 A CN 106141157A
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Abstract
The invention discloses a kind of Anti-blocking immersion nozzle for molten steel water conservancy diversion, this mouth of a river i.e. includes mouth of a river body, described mouth of a river body is provided with endoporus vertically to mouth of a river body lower part and the discharge opening that connects mouth of a river body wall, body slag line position, the described mouth of a river is annular compound sleeve pipe, described inner hole wall is axially spaced is provided with some gullies, and described gully is originated in body endoporus top, mouth of a river low side and goes directly to body endoporus bottom, the mouth of a river.This mouth of a river can eliminate the foreign material that mouth of a river inner hole wall adheres to, effective prevention of immersed nozzle clogging, and simple in construction, it is easy to accomplish, improve slab quality, it is ensured that the continuous production of continuous casting.
Description
Technical field
The present invention relates to a kind of Anti-blocking immersion nozzle for molten steel water conservancy diversion.
Background technology
In continuous casting metallurgical technology, application function refractory material controls the flowing of motlten metal and prevents the oxidation of liquation；For continuous casting technique, molten steel is injected tundish by ladle, then by one or more outlet manifold to corresponding crystallizer；Submersed nozzle is exactly to connect tundish shunting outlet and the refractory material pipeline of crystallizer, plays a part molten steel water conservancy diversion.
Submersed nozzle is generally combined ceramic making by carbon at present, and key component includes aluminium oxide, zirconium oxide, magnesium oxide, silicon dioxide, carborundum, carbon etc..Carbon source mainly has crystalline flake graphite, amorphous carbon, white carbon black etc., and carbon combines network and mostlys come from phenolic resin or other suitable resin.
Conventional immersion type water nozzle structure is as shown in Figure 1, it includes mouth of a river body 1, mouth of a river body 1 end face is provided with sled mechanism 2, mouth of a river body 1 is provided with body 1 bottom, endoporus 11 to the mouth of a river vertically and connects the discharge opening 12 of mouth of a river body 1 wall, sled mechanism 2 includes upper slide 21, middle slide plate 22 and the lower skateboard 23 set gradually, middle slide plate 22 moves between upper slide 21 with lower skateboard 23 and connects mouth of a river body endoporus 11, sled mechanism 2 is used for regulating molten steel flow, also has and is implemented in combination with the flow control function of mouth of a river molten steel with stopper；The middle and lower part of mouth of a river body 1 is annular compound sleeve pipe 13, it is referred to as slag line, mouth of a river body endoporus 11 guides molten steel to inject crystallizer from top to down during pouring operation, slag line is in the solid, liquid, gas three-phase joint portion of mouth of a river body 1, it is made up of high erosion resisting material, generally uses zirconium oxide-graphite composite material；Discharge opening 12 is that molten steel is flowed into the flow-guiding mouth of crystallizer or other bottom container by mouth of a river body endoporus 11.The internal diameter d at three positions, upper, middle and lower of general mouth of a river body endoporus 11u 、 dm 、 ddEqual, or du > dm > dd, but variable quantity is little, and the inclination angle of formation is usually no more than 5 °；The inwall of mouth of a river body endoporus 11 is provided with liner 14, generally blockage resisting material simultaneously, plays certain anti-thermal shock effect.
During continuous casting operation; mouth of a river body endoporus usually can adhere to some deposits or non-metallic inclusion; mouth of a river body inner reversible cycle is caused to affect its stably beam; the blocking position of endoporus is above slag line and discharge opening is particularly acute, and deposit or nonmetal bur are mainly aluminium oxide and other high-melting-point field trash.Nozzle blocking is the serious problems that continuous casting process needs to solve, especially continuous casting high-oxygen steel, potassium steel, calcium treated steel, rustless steel etc., particularly aluminum killed steel, nozzle blocking can affect beam dynamical mechanism, reduce egress rate, cause bulky grain to be mingled with and be involved in molten steel beam, thus form strand and be mingled with.It addition, nozzle blocking also affects the flow control function of sled mechanism or stopper, blocking is seriously accomplished by changing the mouth of a river, otherwise flow control mechanism can not steady operation, directly result in casting speed and reduce.Therefore, nozzle blocking can cause slab quality and production problems, and the blocking at the mouth of a river is difficult to expect, resulting from composition and temperature etc. because of it is a more complicated mechanism.
For solving nozzle blocking problem, the mode relatively early using the mouth of a river to blow reduces blocking, and when continuous casting, mouth of a river endoporus introduces nitrogen, argon or the two mixed gas and carries out air purge to stop non-metallic inclusion to adhere to inwall.Such as British patent GB2111880A indicates a kind of breathability liner mouth of a river.But blow and need to consume substantial amounts of gas, and there is the gate structure design of complexity, be not therefore an effective solution.It addition, gas likely can not overflow in time and flutterred catch the particulate inclusions that causes needle pore defect, gas to sweep along into strand as the most in time floating also can bring, to strand, defects such as being mingled with.
Thereafter another kind of solution route is application low melting point lining technique, and in cast, liner gradually melts, and stops alumina deposit.The inner lining material the most developed includes the MgO liner body that British patent GB2135918A is introduced, and the carbon that EP0309225 introduces combines SiAlON-graphite liner body, the CaO-MgO-Al that GB2170131 introduces2O3Liner body etc..In general, most widely used anti-blocking liner is calcium zirconate-graphite material, and United States Patent (USP) US5902511 gives its typical case and forms: calcium zirconate 20-75wt%, graphite 5-30wt%, calcium silicates 0.5-15wt%.
Further solution is to apply fine and close carbon-free liner anti-blocking.According to United States Patent (USP) US5370370 and the description of US5681499, theoretical according to Benson, for carbon combined fire-resistant material, CO gas can be discharged at a temperature of continuous casting, CO gas can react the aluminium oxide precipitation forming infusibility with the molten aluminum in molten steel, and is deposited on the inner wall surface of mouth of a river endoporus.By the carbonization treatment of mouth of a river endoporus inwall (oxidation) being formed ventilative oxide layer, then immerse carbon-free fire-resistant serosity and formed fine and close without carbon-coating, thus prevent alumina deposit.
The effort of these anti-blocking materials of application above-mentioned, original application is got up the most feasible, but all schemes all can not solve the blockage problem under slag line (gas-solid-liquid three-phase line of contact), the especially blocking at the discharge opening position at the mouth of a river very well, along mouth of a river length direction, block downwards the most serious.
Occur in that the anti-blocking technology changing gate structure subsequently, i.e. by changing mouth of a river geometry prevention blocking.British patent GB2110971 describes the anti-blocking mouth of a river of a kind of single-order ladder, its mechanism is that molten steel is when injecting submersed nozzle, bust due to temperature, dissolved oxygen therein can discharge to keep dissolution equilibrium, and then reacting generation aluminium oxide or calcium aluminate crystal with the aluminum in molten steel or calcium, these trickle crystal coagulated agglomerates are got together and are progressively deposited on mouth of a river endoporus inwall.This patent is pointed out simultaneously, due to operational issue, is particularly easy to form deposition and blocking at mouth of a river slag lining.Therefore, British patent GB2110971 devises the endoporus of a kind of two-part, the diameter of hypomere endoporus more than the diameter of epimere endoporus, two sections by having the step transition of certain angle to prevent from cast is ruptured, mouth of a river epimere is alumina-carbon material, and hypomere is zirconium material with carbon element.
United States Patent (USP) US4566614 describes the anti-blocking mouth of a river of another kind of taper " ladder " endoporus air blowing, is reduced the pulsation of air-flow by cone-shaped inner hole, thus reduces blocking.
Notch cuttype design also includes mouth of a river endoporus is made discontinuous change.United States Patent (USP) US5328064 describes a kind of multi-ladder mouth of a river, and endoporus has a series of step, and the internal diameter of step more than the internal diameter of mouth of a river endoporus and gradually reduces along steel flow path direction, to prevent molten steel from persisting and turbulization is to stop alumina deposit.
Notch cuttype design also includes helical cavity.United States Patent (USP) US6425505 describes one many " scaling " the stage mouth of a river, each stage is all made up of a constriction and a divergent portion, contraction section guides molten steel in the endoporus center set of the mouth of a river, divergent section spreads molten steel the most laterally, the synergy shunk and dissipate causes the symmetrical flowing of mouth of a river endoporus molten steel, to prevent inner reversible cycle.
Casting process relates to several different types of transient phenomena.Such as, document Modelling
Of Transient Flow Phenomena in Continuous Casting of Steel, Canadian Metallurgical Quarterly, 37 (1998) the 197 212 transient flow phenomenons describing continuous casting steel machine, it is indicated that turbulent flow can cause transition transition, rectilinear oscillation and freely fluctuate.Continuous casting operation condition usually needs human intervention to adjust, and pulling rate to lift at any time, such as molten steel amount in ladle, tundish, change steel grade, change the situations such as the mouth of a river, crystallizer size adjusting, this instantaneous process can be considered transition transition, because i.e. can return stable state after system a few minutes.Another kind of transient phenomena have periodically, and including the vertical movement of crystallizer each cycle of oscillation, strand is the mobile convex drum of periodicity produced on roller.Furthermore, freely fluctuating with turbulent flow is the essential phenomenon of fluid in crystallizer.It is critically important for understanding these transient phenomena, because it interferes significantly on slab quality and molten steel in mold liquid level.
Most of transient phenomena need throttle device to be controlled by, such as slide plate or stopper.Having covered mouth of a river endoporus entrance these environment divisions, caused molten steel to enter during the endoporus of the mouth of a river eccentric, mainly along endoporus one side inflow, this asymmetric, uneven fluid produces pulsation and turbulent flow in crystallizer.
Summary of the invention
The technical problem to be solved is to provide a kind of Anti-blocking immersion nozzle for molten steel water conservancy diversion, and this mouth of a river can eliminate the foreign material that mouth of a river inner hole wall adheres to, effective prevention of immersed nozzle clogging, and simple in construction, it is easily achieved, improves slab quality, it is ensured that the continuous production of continuous casting.
For solving above-mentioned technical problem, the present invention includes mouth of a river body for the Anti-blocking immersion nozzle of molten steel water conservancy diversion, described mouth of a river body is provided with endoporus vertically to mouth of a river body lower part and the discharge opening that connects mouth of a river body wall, body slag line position, the described mouth of a river is annular compound sleeve pipe, described inner hole wall is axially spaced is provided with some gullies, and described gully is originated in body endoporus top, mouth of a river low side and goes directly to body endoporus bottom, the mouth of a river.
Further, described gully quantity is at least two.
Further, the degree of depth in described gully be 2～5mm, width be 10～20mm.
Further, described mouth of a river body endoporus is provided with the diameter at position, gully less than without the diameter at position, gully and pass through arc-shaped transition.
Further, described mouth of a river body diameter of bore is gradually increased from the most described discharge opening.
Further, described mouth of a river body diameter of bore is gradually increased from the most described annular compound sleeve pipe, and is gradually reduced from described annular compound sleeve pipe to described discharge opening.
Further, the start angle that described mouth of a river body diameter of bore increases is 5～45 °.
Further, described mouth of a river body endoporus inwall is that continuously smooth is faced directly and/or continuously smooth curved surface.
Further, described mouth of a river body endoporus inwall is from up to down provided with some ring-shaped steps, and every grade of ring-shaped step increases mouth of a river body bore inner diameter 1～2%, altogether increases 10%.
Further, described ring-shaped step starts from the middle part of described mouth of a river body endoporus, and terminates in described discharge opening along inwall or terminate in the lower end position of described annular compound sleeve pipe.
Owing to the present invention have employed technique scheme for the Anti-blocking immersion nozzle of molten steel water conservancy diversion, this mouth of a river i.e. includes mouth of a river body, described mouth of a river body is provided with endoporus vertically to mouth of a river body lower part and the discharge opening that connects mouth of a river body wall, body slag line position, the described mouth of a river is annular compound sleeve pipe, described inner hole wall is axially spaced is provided with some gullies, and described gully is originated in body endoporus top, mouth of a river low side and goes directly to body endoporus bottom, the mouth of a river.This mouth of a river can eliminate the foreign material that mouth of a river inner hole wall adheres to, effective prevention of immersed nozzle clogging, and simple in construction, it is easy to accomplish, improve slab quality, it is ensured that the continuous production of continuous casting.
Accompanying drawing explanation
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings:
Fig. 1 is the structural representation of tradition submersed nozzle；
Fig. 2 is the gate structure schematic diagram of the embodiment of the present invention 1；
Fig. 3 is the A-A direction view of Fig. 2；
Fig. 4 is the gate structure schematic diagram of the embodiment of the present invention 2；
Fig. 5 is the gate structure schematic diagram of the embodiment of the present invention 3；
Fig. 6 is the enlarged drawing in B portion in Fig. 5；
Fig. 7 to Figure 12 is that mouth of a river body endoporus inwall is faced directly or the schematic diagram of curved surface；
Figure 13 is the gate structure schematic diagram of the embodiment of the present invention 4；
Figure 14 is the schematic diagram of the mouth of a river of the present invention stable state cast；
Figure 15 is the schematic diagram of the mouth of a river of the present invention flow control cast.
Detailed description of the invention
Embodiment 1 is as shown in Figures 2 and 3, the present invention includes mouth of a river body 1 for the Anti-blocking immersion nozzle of molten steel water conservancy diversion, described mouth of a river body 1 is provided with body 1 bottom, endoporus 11 to the mouth of a river vertically and connects the discharge opening 12 of mouth of a river body 1 wall, body 1 slag line position, the described mouth of a river is annular compound sleeve pipe 13, described endoporus 11 wall is axially spaced is provided with some gullies 15, and described gully 15 is originated in body endoporus 11 top, mouth of a river low side and goes directly to body endoporus 11 bottom, the mouth of a river.
Mouth of a river body endoporus 11 arranges gully 15 and forms enough negative pressure to increase mouth of a river cavity volume, and the volume that gully 15 provides can produce 0.05 × 10 during water-gap pouring5MPa～0.1 × 105The negative pressure of MPa, gully 15 also provide for the passage taken out in molten steel siphon；In this design, the geometry of mouth of a river body endoporus 11 can continue to use the straight-through shape of current techniques, inverted cone or other shape.
Preferably, described gully 15 quantity is at least two.Conventional gully 15 quantity can be eight, and the most any design more than two is all feasible.
Preferably, the degree of depth in described gully 15 be 2～5mm, width be 10～20mm.The shape in gully 15 does not limits, and the depression of any shape or breach all can use, and considerations is easy to molding and makes, it is simple to die-filling and form removal also provides suitable space.
As shown in Figure 4, on the basis of embodiment 1, described mouth of a river body endoporus 11 is provided with the diameter at position, gully 15 less than the diameter without position, gully and by arc 16 transition to embodiment 2.The mouth of a river body endoporus thickness being provided with position, gully is strengthened, i.e. the bore inner diameter of corresponding site diminishes, it is therefore an objective to provides enough intensity for mouth of a river body, prevents from fractureing；The increase of mouth of a river intracavity space can be realized by the depth and width improving gully, for the different mouths of a river, can obtain through careful geometrical calculation.
Embodiment 3 is as it is shown in figure 5, on the basis of embodiment 1, described mouth of a river body endoporus 11 diameter is gradually increased from the most described discharge opening 12.The space of mouth of a river body endoporus 11 changing unit can be divided into upper and lower two parts, upper space is in the middle part of mouth of a river body 1 geometry, lower space is in the bottom (or slightly higher) of mouth of a river body 1 geometry, and the design of endoporus 11 space size is to provide 0.05 × 105MPa～0.1 × 105The negative pressure of MPa is basis；The shape in endoporus 11 space can be continuous cone, reverse taper, sphere, ellipsoid etc..
Preferably, as it is shown in fig. 7, described mouth of a river body endoporus 11 diameter is gradually increased from the most described annular compound sleeve pipe 13, and it is gradually reduced to described discharge opening 12 from described annular compound sleeve pipe 13.It forms mouth of a river slag lining lower cavity and shrinks for reversion, and the purpose that reversion is shunk is to endoporus center, mouth of a river boundling steel stream.Mouth of a river slag lining cavity volume design principle is: sufficiently large, to form enough negative pressure；The least, to keep the enough mechanical strength of mouth of a river body.
Preferably, as shown in Figure 6, the start angle θ that described mouth of a river body 1 endoporus 11 diameter increases is 5～45 °.
Preferably, as shown in Fig. 8 to Figure 12, described mouth of a river body endoporus 11 inwall is that continuously smooth faces 17 and/or continuously smooth curved surface 18 directly.Fig. 8 and Figure 10 has regarded out mouth of a river body endoporus 11 from top to annular compound sleeve pipe 13 end face as continuously smooth curved surface 18, face 17 to discharge opening 12 for continuously smooth from annular compound sleeve pipe 13 end face；Fig. 9 and Figure 12 has regarded out mouth of a river body endoporus 11 from top to annular compound sleeve pipe 13 bottom surface as continuously smooth curved surface 18, face 17 to discharge opening 12 for continuously smooth from annular compound sleeve pipe 13 bottom surface；Figure 11 is depending on having gone out mouth of a river body endoporus 11 from top to discharge opening 12 all continuously smooths curved surface 18.
As shown in figure 13, on the basis of embodiment 1, described mouth of a river body 1 endoporus 11 inwall is from up to down provided with some ring-shaped steps 19 to embodiment 4, and every grade of ring-shaped step 19 increases mouth of a river body endoporus 11 internal diameter 1～2%, altogether increases 10%.Ring-shaped step 19 increases the internal diameter of mouth of a river body endoporus 11, and its thickness recommendation is 1～2mm.Ring-shaped step 19 can increase endoporus 11 internal diameter step by step, and the increase of internal diameter makes inner chamber produce suitable negative pressure when continuous casting to wash away and shear action to produce, reach to stop the purpose of deposition from top to bottom.Ring-shaped step 19 is applicable to any cylinder, taper, oval cavity.The ring-shaped step 19 increasing inner chamber can be multistage continuous setting, can reach more than 10, and the width recommendation of ring-shaped step 19 is 10～100mm.
Preferably, described ring-shaped step 19 starts from the middle part of described mouth of a river body endoporus 11, and terminates in described discharge opening 12 along inwall or terminate in the lower end position of described annular compound sleeve pipe 13.
As shown in figure 14, in pouring practice, mouth of a river body 1 immerses in crystallizer 3 below slag line, molten steel flow is controlled by sled mechanism 2, during stable state cast, the molten steel flow velocity in body endoporus 11 centre, the mouth of a river is higher than side flow velocity, and the flow velocity of both sides, endoporus 11 center is also that side is higher than opposite side.The high velocity turbulent flow of endoporus 11 side or turbulent flow-laminar flow transition state molten steel cause and perturb to some extent, in all directions, the formation of endoporus 11 sidewall are washed away, are cleaned, and steel miscarriage life shear stress is also reduced flow velocity by endoporus 11 inwall simultaneously；Figure depending on arrow simply illustrate steel stream the flow direction distribution.
As shown in figure 15, during flow control cast, the aperture of sled mechanism 2 adjusts and causes steel stream to deviate body 1 endoporus 11 center, the mouth of a river, and equally, arrow shows that the flow direction of molten steel, endoporus 11 inwall bur can be washed away by turbulent flow and shear stress.
The present invention improves the diameter of existing mouth of a river endoporus and shape to reach anticlogging effect, by increasing mouth of a river intracavity space, improve the mobility of molten steel in the mouth of a river, thus the deposition of impurity in reducing the mouth of a river, this impurity is probably nonmetal inclusion or metal-oxide precipitation thing, such as aluminium oxide.The gully of mouth of a river body inner hole wall provides suitable negative pressure persistently to change and to spread internal steel stream in casting process, and range of negative pressure is 0.05 × 105MPa～0.1 × 105MPa。
It turned out, during the continuous casting process steady state operation mouth of a river, the mouth of a river body bore inner diameter amplified causes the speed of mouth of a river central steel stream higher than mouth of a river periphery, or the flow velocity of side, center, the mouth of a river is higher than offside, side steel stream can form turbulent flow or be in laminar-turbulent transition state, this fluidised form will result in molten steel and washes away mouth of a river endoporus inwall all directions, and steel miscarriage also will be given birth to certain shear stress to weaken flowing by mouth of a river endoporus inwall；And the Particles Moving in laminar condition, steel stream is along mouth of a river endoporus inwall the most forward.
When applying the flow control equipment of sled mechanism, particularly during those regular current-limiting operation, top, the mouth of a river effective internal diameter of endoporus reduces, and will form a bigger negative pressuren zone at bigger endoporus lower lumen.According to siphon principle, the sudden contraction of endoporus top bore and the formation of negative pressuren zone, its internal molten steel will be by certain siphonage power, if this active force is sufficiently large, it is sufficient to overcome gravity and the lower punch power of molten steel, then can cause molten steel resorption, more particularly along mouth of a river endoporus cavity inner wall to upper return, thus form the flushing effect to mouth of a river inwall, therefore mouth of a river inner hole wall is just difficult to attaching particles thing, results in blockage even if there being attachment also to be difficult to further precipitation.Meanwhile, the shear stress that endoporus inwall in the mouth of a river is formed because of turbulent flow the most effectively promotes the souring of adhered particles.
Therefore, the design of mouth of a river endoporus inner chamber is increased from top to bottom, it is possible to the particulate matter adhering to or being deposited on mouth of a river endoporus inwall is formed lasting washing away and shear action, thus prevents further precipitation, reach the purpose of prevention of immersed nozzle clogging.
Claims (10)
1. the Anti-blocking immersion nozzle for molten steel water conservancy diversion, including mouth of a river body, described mouth of a river body is provided with endoporus vertically to mouth of a river body lower part and the discharge opening that connects mouth of a river body wall, body slag line position, the described mouth of a river is annular compound sleeve pipe, it is characterized in that: described inner hole wall is axially spaced is provided with some gullies, and described gully is originated in body endoporus top, mouth of a river low side and goes directly to body endoporus bottom, the mouth of a river.
Anti-blocking immersion nozzle for molten steel water conservancy diversion the most according to claim 1, it is characterised in that: described gully quantity is at least two.
Anti-blocking immersion nozzle for molten steel water conservancy diversion the most according to claim 1, it is characterised in that: the degree of depth in described gully is 2～5mm, width is 10～20mm.
4. according to the Anti-blocking immersion nozzle for molten steel water conservancy diversion of claim 1,2 or described, it is characterised in that: described mouth of a river body endoporus is provided with the diameter at position, gully and is less than the diameter without position, gully and passes through arc-shaped transition.
Anti-blocking immersion nozzle for molten steel water conservancy diversion the most according to claim 1, it is characterised in that: described mouth of a river body diameter of bore is gradually increased from the most described discharge opening.
Anti-blocking immersion nozzle for molten steel water conservancy diversion the most according to claim 1, it is characterised in that: described mouth of a river body diameter of bore is gradually increased from the most described annular compound sleeve pipe, and is gradually reduced from described annular compound sleeve pipe to described discharge opening.
7. according to the Anti-blocking immersion nozzle for molten steel water conservancy diversion described in claim 5 or 6, it is characterised in that: the start angle that described mouth of a river body diameter of bore increases is 5～45 °.
8. according to the Anti-blocking immersion nozzle for molten steel water conservancy diversion described in claim 5 or 6, it is characterised in that: described mouth of a river body endoporus inwall is that continuously smooth is faced directly and/or continuously smooth curved surface.
Anti-blocking immersion nozzle for molten steel water conservancy diversion the most according to claim 5, it is characterised in that: described mouth of a river body endoporus inwall is from up to down provided with some ring-shaped steps, and every grade of ring-shaped step increases mouth of a river body bore inner diameter 1～2%, altogether increases 10%.
Anti-blocking immersion nozzle for molten steel water conservancy diversion the most according to claim 9, it is characterized in that: described ring-shaped step starts from the middle part of described mouth of a river body endoporus, and terminates in described discharge opening along inwall or terminate in the lower end position of described annular compound sleeve pipe.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108326276A (en) * | 2018-05-17 | 2018-07-27 | 山东钢铁股份有限公司 | A kind of mouth of a river adapting to the Metal in Tundish degree of superheat |
| CN110170641A (en) * | 2019-06-04 | 2019-08-27 | 甘肃酒钢集团宏兴钢铁股份有限公司 | A kind of square billet hyperbolic-type submersed nozzle and preparation method thereof |
| CN110315061A (en) * | 2018-03-30 | 2019-10-11 | 宝山钢铁股份有限公司 | A kind of mouth of a river that can prevent pipeline and discharge hole bottom from adhering to |
| CN111036891A (en) * | 2019-11-29 | 2020-04-21 | 浙江科宇金属材料有限公司 | Pouring pipe for vertical casting |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04304308A (en) * | 1991-03-29 | 1992-10-27 | Sumitomo Metal Ind Ltd | Method for promoting degassing in molten metal |
| KR100792733B1 (en) * | 2006-08-10 | 2008-01-08 | 조선내화 주식회사 | Submerged entry nozzle for continuous casting |
| CN101189088A (en) * | 2005-05-02 | 2008-05-28 | 朝鲜耐火株式会社 | Submerged entry nozzle for continuous casting |
| GB2444805A (en) * | 2006-08-30 | 2008-06-18 | Shibiao Yang | Nozzle |
| JP2012187622A (en) * | 2011-03-14 | 2012-10-04 | Akechi Ceramics Co Ltd | Nozzle for continuous casting |
| CN204035548U (en) * | 2014-07-22 | 2014-12-24 | 莱芜钢铁集团有限公司 | Square parison casting submersed nozzle and arrangement thereof |
-
2015
- 2015-03-23 CN CN201510125542.6A patent/CN106141157A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04304308A (en) * | 1991-03-29 | 1992-10-27 | Sumitomo Metal Ind Ltd | Method for promoting degassing in molten metal |
| CN101189088A (en) * | 2005-05-02 | 2008-05-28 | 朝鲜耐火株式会社 | Submerged entry nozzle for continuous casting |
| JP2008540131A (en) * | 2005-05-02 | 2008-11-20 | チョスン リフラクトリアズ コーポレイション リミテッド | Immersion nozzle for continuous casting |
| KR100792733B1 (en) * | 2006-08-10 | 2008-01-08 | 조선내화 주식회사 | Submerged entry nozzle for continuous casting |
| GB2444805A (en) * | 2006-08-30 | 2008-06-18 | Shibiao Yang | Nozzle |
| JP2012187622A (en) * | 2011-03-14 | 2012-10-04 | Akechi Ceramics Co Ltd | Nozzle for continuous casting |
| CN204035548U (en) * | 2014-07-22 | 2014-12-24 | 莱芜钢铁集团有限公司 | Square parison casting submersed nozzle and arrangement thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110315061A (en) * | 2018-03-30 | 2019-10-11 | 宝山钢铁股份有限公司 | A kind of mouth of a river that can prevent pipeline and discharge hole bottom from adhering to |
| CN110315061B (en) * | 2018-03-30 | 2021-10-19 | 宝山钢铁股份有限公司 | Can prevent mouth of a river of pipeline and spit hole bottom adhesion |
| CN108326276A (en) * | 2018-05-17 | 2018-07-27 | 山东钢铁股份有限公司 | A kind of mouth of a river adapting to the Metal in Tundish degree of superheat |
| CN108326276B (en) * | 2018-05-17 | 2023-09-19 | 山东钢铁股份有限公司 | Can adapt to mouth of a river of middle package molten steel superheat degree |
| CN110170641A (en) * | 2019-06-04 | 2019-08-27 | 甘肃酒钢集团宏兴钢铁股份有限公司 | A kind of square billet hyperbolic-type submersed nozzle and preparation method thereof |
| CN110170641B (en) * | 2019-06-04 | 2021-05-11 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Square billet hyperbolic submerged nozzle and manufacturing method thereof |
| CN111036891A (en) * | 2019-11-29 | 2020-04-21 | 浙江科宇金属材料有限公司 | Pouring pipe for vertical casting |
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