CN204621070U - A kind of combined type high life low cost ladle pocket block - Google Patents
A kind of combined type high life low cost ladle pocket block Download PDFInfo
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- CN204621070U CN204621070U CN201520329237.4U CN201520329237U CN204621070U CN 204621070 U CN204621070 U CN 204621070U CN 201520329237 U CN201520329237 U CN 201520329237U CN 204621070 U CN204621070 U CN 204621070U
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- brick cup
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Abstract
The utility model relates to combined type high life low cost ladle pocket block, comprise brick cup body, brick cup intrinsic single is cylindrical, the outer diameter D that brick cup body comprises body and lower body brick cup body is 380 ~ 400mm, the overall height H of brick cup body is 440 ~ 470mm, upper body height h is 180 ~ 230mm, the height of lower body is greater than the height of body, combined type high life low cost ladle pocket block prepared by application the utility model is better than the compound brick cup that existing patent CN102310192A technology is produced, production cost reduces by more than 25% on year-on-year basis, erosion rate reduces 0.4mm/ stove on year-on-year basis, service life improves 4 ~ 6 stoves on year-on-year basis.
Description
Technical field
The utility model relates to a kind of combined type high life low cost ladle pocket block, belongs to steel-making technical field of refractory materials.
Background technology
Ladle is the basic container of external refining such as steel-making shipment molten steel and LF, RH etc., and the mouth of a river is the passage that steel flow goes out ladle, and pocket block is the mouth of a river, location, is placed in the refractory element of bottom of steel ladle liner.At present, the ladle pocket block life-span that prior art is produced is low, is one of several key common technology difficult problems affecting ladle working lining refractory life and cost.There is following problem and shortage in the ladle pocket block that prior art is produced: the top of (1) pocket block body, bottom adopt the castable moulding by casting of identical grade, and cost performance is low, and service life is low; (2) ladle pocket block body and steel outlet hole adopt two kinds of materials and machine pressure respectively, pour into a mould twice moulding process, complex process, and production cost is high; (3) current brick cup mostly is square brick, because square brick wall unevenness is even, can produce thermal stress, causes the shrinkage cavity of brick cup partial portion, distortion, crackle, makes brick cup shortening in service life.
Chinese patent literature CN201455253U (the patent No.: 200920016943.8) disclose a kind of a kind of Novel molten steel ladle nozzle pocket block used in steelmaking process, for tubular structure, be made up of the Rotary-table of top Rotary-table, middle part cylinder, bottom, top Rotary-table feeder connection diameter D1 is 150 ~ 240mm, and the cylinder channel diameter D2 that bottom connects is 80 ~ 100mm.The height L1 of top Rotary-table is 80 ~ 200mm.This patent has the following disadvantages: pocket block body upper part, bottom adopt the castable moulding by casting of uniform quality, because top is direct and high-temperature molten steel, slag contacts, its erosion rate is greater than body lower part, brick cup body upper part, bottom adopt the castable of identical grade, add cost, cost performance is low.
Chinese patent literature CN102310192A (application number: 201110297586.9) disclose a kind of novel compound brick cup, comprise the compacting brick cup interfixed, cast brick cup, compacting brick cup offers the first brick cup mouth, cast brick cup offers the second brick cup mouth, described first, second brick cup mouth is coaxial, the mouth of a river is provided with in second brick cup mouth, the upper end at the mouth of a river abuts with the bottom of the first brick cup mouth, the axis at the mouth of a river and described first, second brick cup mouth is coaxial, this patent has the following disadvantages: although the cost of material of general compacting brick cup is lower than the cost of material of cast brick cup, but the manufacturing expense of compacting brick cup is higher than the manufacturing expense of cast brick cup, and the high grade sprue gate brick cup that its service life produces well below prior art, as chrome corundum sprue gate brick cup.
Summary of the invention
For the deficiencies in the prior art, the utility model provides a kind of combined type high life low cost ladle pocket block, and this ladle pocket block structure is simple, production cost is low.
The technical solution of the utility model is as follows:
A kind of combined type high life low cost ladle pocket block, comprise brick cup body, brick cup intrinsic single is cylindrical, is provided with steel outlet hole and installing hole from top to bottom in the middle part of brick cup body, and steel outlet hole and installing hole are coaxial relative and run through brick cup body; Described brick cup body comprises body and lower body, it is characterized in that, the outer diameter D of described brick cup body is 380 ~ 400mm, and the overall height H of brick cup body is 440 ~ 470mm, upper body height h is 180 ~ 230mm, and the height of lower body is greater than the height of body.
The average wall thickness of brick cup body of the present utility model is 50 ~ 100mm,
The utility model is preferred, upper body, lower body adopt different castable one-time cast-formings respectively, described upper body adopts high-purity chromium magnesium corundum castable moulding by casting, and upper body height h is 200 ~ 220mm, and lower body adopts chromium magnesium corundum castable moulding by casting.
The utility model is preferred, described steel outlet hole comprises truncated cone-shaped channel and cylindrical channel, truncated cone-shaped channel and partial cylindrical shapes passage are positioned at body, round platform passage is positioned at the top of cylindrical channel and is coaxial docking with cylindrical channel, the upper port diameter d 1 of truncated cone-shaped channel (3) is 203 ~ 210mm, and lower port diameter d 2 is 152 ~ 160mm.
Preferred further, frustum cone height c is 45 ~ 55mm, and the diameter of cylindrical channel is consistent with the lower port diameter d 2 of top truncated cone-shaped channel.
The utility model is preferred, remainder cylindrical channel and mounting hole site are in lower body, described installing hole is truncated cone-shaped, truncated cone-shaped mounting hole site is in the below of cylindrical channel and be coaxial docking with cylindrical channel, the lower port diameter d 3 of truncated cone-shaped installing hole is 182 ~ 190mm, and upper port diameter is consistent with the diameter of the cylindrical channel of steel outlet hole.
The utility model is preferred, and the cylindrical channel diameter to be positioned at is identical with the cylindrical channel diameter being positioned at lower, and cylindrical channel total height b is 230 ~ 263mm.
The utility model is preferred, the high-purity chromium magnesium corundum castable that upper body adopts, be made up of following component by weight percentage: the fused white corundum 22 ~ 25% of 10mm≤granularity <15mm, the fused white corundum 9.0 ~ 11% of 5mm≤granularity <10mm, the fused white corundum 10 ~ 12% of 3mm≤granularity <5mm, the fused white corundum 8.0 ~ 9.0% of 1mm≤granularity <3mm, the fused white corundum 10 ~ 14% of 0.088mm≤granularity <1mm, the plate diamond spar fine powder 9.0 ~ 11% of 0.044mm≤granularity <0.088mm, the plate diamond spar micro mist 3.0 ~ 6.0% of granularity <0.044mm, the fused magnesite fine powder 1.0 ~ 3.0% of 0.088mm≤granularity <0.5mm, the fused magnesite micro mist 1.0 ~ 3.0% of Li Du≤0.044mm, electric smelting Cr
2o
3micro mist 4.0 ~ 6.0%, electric smelting Spinel micropowder 1.0 ~ 3.0%, the α-Al of granularity <0.044mm
2o
3micro mist 3.5 ~ 5.5%, active SiO
2micro mist 0.8 ~ 1.2%, pure calcium aluminate cement 3.5 ~ 4.5%, wooden calcium 0.05 ~ 0.1%, calgon 0.15 ~ 0.18%, heat-resistant steel fiber 0.02 ~ 0.05%, is all weight percentage.
The utility model is preferred, the chromium magnesium corundum castable that lower body adopts, be made up of following component by weight percentage: the alumina-based alundum 21 ~ 24% of 10mm≤granularity <15mm, the alumina-based alundum 9.0 ~ 12% of 5mm≤granularity <10mm, the alumina-based alundum corundum 10 ~ 12% of 3mm≤granularity <5mm, the alumina-based alundum corundum 8.0 ~ 10% of 1mm≤granularity <3mm, the alumina-based alundum corundum 12 ~ 15% of 0.088mm≤granularity <1mm, the fused white corundum fine powder 6.0 ~ 8.0% of 0.044mm≤granularity <0.088mm, the fused white corundum micro mist 5.0 ~ 8.0% of granularity <0.044mm, the fused magnesite fine powder 2.0 ~ 3.0% of 0.088mm≤granularity <0.5mm, the fused magnesite micro mist 2.0 ~ 3.0% of Li Du≤0.044mm, electric smelting Cr
2o
3micro mist 2.5 ~ 3.5%, electric smelting Spinel micropowder 1.0 ~ 3.0%, the α-Al of granularity <0.044mm
2o
3micro mist 4.2 ~ 6.0%, active SiO
2micro mist 0.8 ~ 1.2%, pure calcium aluminate cement 3.2 ~ 4.0%, wooden calcium 0.05 ~ 0.1%, calgon 0.15 ~ 0.22%, heat-resistant steel fiber 0.02 ~ 0.03%, is all weight percentage.
Described fused white corundum produces with commercial alumina electric smelting, its Al
2o
3>=98.1%, SiO
2≤ 0.5%, Fe
2o
3≤ 0.3%, TiO2≤0.2%, CaO≤0.29%, MgO≤0.14%, K
2o≤0.05%, Na
2o≤0.41%, bulk density>=3.80g/cm
3, apparent porosity≤4.0%.
Described plate diamond spar, be adopt electric smelting method method to produce with commercial alumina, alumina grain reaches recrystallization α-Al completely
2o
3, its Al
2o
3>=99.3%, SiO
2≤ 0.18%, Fe
2o
3≤ 0.1%, Na
2o≤0.28%, bulk density>=3.76g/cm
3, apparent porosity≤2.6%.
Described fused magnesite selects the trade mark to be BMS-97.
Described electric smelting Cr
2o
3micro mist, light green brilliant to tiny six reef knots of bottle green, Cr
2o
3>=99%, fusing point 2266 ± 25 DEG C, moisture≤0.2%, 320 screen residue≤0.5%.
Described electric smelting spinelle, its content of MgO is 28.4 ~ 36.6%, Al
2o
3content is 52.9 ~ 70.4%, SiO
2content is 0.3 ~ 3.33%, Fe
2o
3content is 0.3 ~ 1.89%, CaO content is 0.4 ~ 0.89%, TiO
2content is 2.10 ~ 2.52%, bulk density>=3.17g/cm
3, apparent porosity≤6.9%.
Described active SiO
2micro mist is the byproduct producing metallic silicon or Antaciron, SiO in silicon ash
2content>=92%, granularity is less than 5 μm, and granularity be less than 2 μm account for 80 ~ 85%.
Described α-Al
2o
3micro mist is that commercial alumina calcining is made, its Al
2o
3micro mist > 99%, granularity is less than 2 μm.
Described pure calcium aluminate cement, its trade mark is CA-70.
Described wooden calcium, be a kind of multicomponent high molecular polymer anion surfactant, its content of lignin is 55-65%, and water-insoluble is 0.5-1.5%, and reduzate is 5-13%, pH value: 4.5 – 7.
Described heat-resistant steel fiber, is produce with the heat resisting steel containing alloying elements such as chromium nickel, selects the trade mark to be 310.
Described alumina-based alundum produces by Bauxite Sintering, its Al
2o
3>=98.7%, SiO
2≤ 0.01%, Fe
2o
3≤ 0.12%, TiO
2≤ 0.01%, CaO≤0.02%, MgO≤0.02%, K
2o≤0.02%, Na
2o≤0.05%, bulk density>=3.67g/cm
3, apparent porosity≤1.8%.
Through numerous experiments, the utility model surprisingly finds: (1) brick cup intrinsic single is cylindrical, cross section is circular, upper body adopts the cast of high-purity chromium magnesium corundum castable to form, height h is 180 ~ 230mm, lower body adopts common chromium magnesium corundum castable to pour into a mould and forms, cross section take diameter of a circle as the foursquare ladle pocket block body of the length of side on year-on-year basis, castable consumption reduces 21.5% on year-on-year basis, and improve 4 ~ 6 stoves service life on year-on-year basis, this is based on ladle pocket block body upper part, the service condition that bottom is different and serviceability requirement, body upper part directly and high-temperature molten steel, slag contacts, require its antiscour, erosion-resisting characteristics is strong, and body lower part is not direct and high-temperature molten steel, slag contacts, its antiscour, erosion-resisting characteristics can suitably reduce, and height h is 180 ~ 230mm, this is based on high-temperature molten steel, slag is to the maximum erosion height of body upper part, determine after the test of room resistance to slag and on-the-spot application verification by experiment, cylindrical brick cup body wall is evenly thick, and toast in preparation and water in steel use procedure, temperature is evenly distributed along wall, decreases thermal stress, avoids shrinkage cavity, distortion, crackle, extends the service life of cylindrical brick cup thus.
(2) during on the utility model, body high-purity chromium magnesium corundum castable and lower body form with the material of common chromium magnesium corundum castable, the critical granularity (i.e. maximum particle size) of material increases to 15mm by the 8mm of prior art, simultaneously with addition of appropriate Cr
2o
3micro mist, this be based on a large amount of experiments with determine, critical granularity increases to 15mm by 8mm, can improve the erosion-resisting characteristics of castable to high-temperature molten steel, slag, and with addition of Cr
2o
3al in micro mist and matrix
2o
3reaction forms aluminium chromium solid solution, react to be formed full-bodiedly to contain chromium glass phase with other impurity, be filled between pink fused alumina crystal, and viscosity comparatively greatly, can stop the infiltration of slag, improve its resistance to slag, reduce its erosion rate in island shape.
(3) by a large amount of experiments and research, on the utility model, body high-purity chromium magnesium corundum castable and lower body are with in the material composition of common chromium magnesium corundum castable, fused magnesite all adopts thickness two kinds of granularities of 0.088mm≤granularity <0.5mm and Li Du≤0.044mm to add, and can control the MgO in fused magnesite and the Al in matrix
2o
3reaction generates the speed of spinelle, and make the staggered growth of spinel crystal, matrix densified, after making the burning of castable, line change increases gradually, improves its thermal shock resistance, solves prior art only with single magnesia micro mist and Al
2o
3fast reaction, the crackle causing the volume rapid expanding of castable to cause and pocket block breakage problem.
The preparation method of above-mentioned combined type high life low cost ladle pocket block, the upper body of first cast, then waters and pours down body, comprise step as follows:
1), after the mould inner wall preparing pocket block evenly being brushed oil, be placed on shake table;
2) according to after the component proportion batching of the high-purity chromium magnesium corundum castable of upper body, be first dry mixed 5 ~ 10 minutes, add the water of material gross weight 4.5 ~ 5.0% after mixing, wet mixing 5 ~ 10 minutes, mixes, and obtains body pug;
3) upper body pug is added in mould, feed in raw material while vibrate, until the height h of upper body pug is 180 ~ 230mm;
4) according to after the component proportion batching of the chromium magnesium corundum castable of lower body, be first dry mixed 5 ~ 10 minutes, add the water of material gross weight 5.0 ~ 5.5% after mixing, wet mixing 5 ~ 10 minutes, mixes, and obtains lower body pug;
5) upper body pug is shakeout, immediately lower body pug is added in mould before upper body pug solidifies, feed in raw material while vibrate, until pug and mould top edge maintain an equal level, continue to be vibrated to surface compact bleeding;
6) temperature 17-25 DEG C, humidity to be greater than under the condition of 90% maintenance after 2 ~ 3 days, the demoulding, obtained ladle pocket block body green compact;
7) ladle pocket block body green compact are toasted, then naturally cool, ladle pocket block body finished product.
The utility model is preferred, and the baking of ladle pocket block body green compact and cooling are by following flow process; A, from 0 ~ 150 DEG C with 10 DEG C/h programming rate heat up, be warming up to 135 ~ 150 DEG C; B, 135 ~ 150 DEG C of insulations, temperature retention time 12 ~ 16h; C, again from 135 ~ 150 DEG C with 10 DEG C/h programming rate heat up, be warming up to 235 ~ 250 DEG C; D, 235 ~ 250 DEG C of insulations, temperature retention time 8 ~ 12h; E, again from 235 ~ 250 DEG C with 15 DEG C/h programming rate heat up, be warming up to 575 ~ 600 DEG C, f, 575 ~ 600 DEG C insulation 8 ~ 12h after, truce cools naturally, cool time 12 ~ 24h.
The beneficial effects of the utility model are:
(1) on combined type high life low cost ladle pocket block of the present utility model, body is formed by the cast of high-purity chromium magnesium corundum castable, height h is 180 ~ 230mm, lower body is poured into a mould by common chromium magnesium corundum castable and is formed, body is cylindrical simultaneously, achieve unforeseeable technique effect: make the cost performance of combined type high life low cost ladle pocket block of the present utility model be better than existing patent CN102310192A (application number: the 201110297586.9) compound brick cup of technology production, production cost reduces by more than 10% on year-on-year basis.
(2), after combined type high life low cost ladle pocket block application of the present utility model, the pit that the upper wrist of ladle pocket block is formed reduces, and the stuffing sand amount of throwing in steel flow port is reduced, and stuffing sand loss per ton steel reduces 0.04kg on year-on-year basis.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of combined type high life low cost ladle pocket block of the present utility model,
Fig. 2 is the plan structure schematic diagram of Fig. 1 ladle pocket block.
In figure: the upper body of 1-; Body under 2-; 3-truncated cone-shaped channel; 4-cylindrical channel; 5-installing hole.
Detailed description of the invention
Following examples further illustrate the preparation technology of utility model, but the utility model is not limited thereto.
Embodiment 1
A kind of combined type high life low cost ladle pocket block, structure as shown in Figure 1, 2, comprises brick cup body, and brick cup intrinsic single is cylindrical, be provided with steel outlet hole and installing hole from top to down in the middle part of brick cup body, steel outlet hole 5 and installing hole are coaxial relative and run through brick cup body; Described brick cup body comprises body 1 and lower body 2, upper body 1 and lower body 2 adopt different castable one-time cast-formings respectively, upper body 1 adopts high-purity chromium magnesium corundum castable moulding by casting, upper body 1 height h is 230mm, lower body 2 adopts chromium magnesium corundum castable moulding by casting, and the height of lower body 2 is greater than the height of body 1.Steel outlet hole comprises truncated cone-shaped channel 3 and cylindrical channel 4, truncated cone-shaped channel 3 and partial cylindrical shapes passage 4 are positioned at body 1, round platform channel bit 3 is in the top of cylindrical channel 4 and be coaxial docking with cylindrical channel 4, the upper port diameter d 1 of truncated cone-shaped channel 3 is 203mm, lower port diameter d 2 is 152mm, frustum cone height c is 45mm, and the diameter of cylindrical channel is consistent with the lower port diameter d 2 of top truncated cone-shaped channel.Remainder cylindrical channel 4 and installing hole 5 are positioned at lower body 2, installing hole 5 is truncated cone-shaped, truncated cone-shaped mounting hole site is in the below of cylindrical channel 4 and be coaxial docking with cylindrical channel 4, the lower port diameter d 3 of truncated cone-shaped installing hole is 182mm, and upper port diameter is consistent with the diameter of the cylindrical channel of steel outlet hole.
The outer diameter D of brick cup body is 380mm, and the overall height H of brick cup body is 470mm.The cylindrical channel diameter to be positioned at is identical with the cylindrical channel diameter being positioned at lower, and cylindrical channel total height b is 263mm.
Embodiment 2
With embodiment 1, difference is:
Body 1 height h is 180mm, and lower body 2 adopts chromium magnesium corundum castable moulding by casting, and the height of lower body 2 is greater than the height of body 1.The upper port diameter d 1 of truncated cone-shaped channel 3 is 210mm, and lower port diameter d 2 is 160mm, and frustum cone height c is 60mm, and the diameter of cylindrical channel is consistent with the lower port diameter d 2 of top truncated cone-shaped channel.The lower port diameter d 3 of truncated cone-shaped installing hole is 190mm, and upper port diameter is consistent with the diameter of the cylindrical channel of steel outlet hole.
The outer diameter D of brick cup body is 400mm, and the overall height H of brick cup body is 470mm.The cylindrical channel diameter to be positioned at is identical with the cylindrical channel diameter being positioned at lower, and cylindrical channel total height b is 230mm.
Embodiment 3
With embodiment 1, difference is:
Body 1 height h is 200mm, and lower body 2 adopts chromium magnesium corundum castable moulding by casting, and the height of lower body 2 is greater than the height of body 1.The upper port diameter d 1 of truncated cone-shaped channel 3 is 205mm, and lower port diameter d 2 is 155mm, and frustum cone height c is 50mm, and the diameter of cylindrical channel is consistent with the lower port diameter d 2 of top truncated cone-shaped channel.The lower port diameter d 3 of truncated cone-shaped installing hole is 186mm, and upper port diameter is consistent with the diameter of the cylindrical channel of steel outlet hole.
The outer diameter D of brick cup body is 390mm.
(application number: 201110297586.9) disclose a kind of novel compound brick cup comprises the compacting brick cup, the cast brick cup that interfix to comparative example: Chinese patent literature CN102310192A.
The utility model embodiment 1-3 and documents (Chinese patent literature CN102310192A (application number: 201110297586.9) disclose a kind of novel compound brick cup, comprise interfix compacting brick cup, cast brick cup) production technology, cost and on 130tLF ladle service condition contrast, as shown in table 1 below:
Table 1
By the Data Comparison in upper table 1, combined type high life low cost ladle pocket block prepared by the utility model is better than existing patent CN102310192A (application number: the 201110297586.9) compound brick cup of technology production, production technology is simple, manufacturing expense is low, production cost reduces by more than 10% on year-on-year basis, erosion rate reduces 0.4mm/ stove on year-on-year basis, and service life improves 4 ~ 6 stoves on year-on-year basis, and stuffing sand loss per ton steel reduces 0.04kg on year-on-year basis.
Claims (6)
1. a combined type high life low cost ladle pocket block, comprises brick cup body, and brick cup intrinsic single is cylindrical, is provided with steel outlet hole and installing hole from top to bottom in the middle part of brick cup body, and steel outlet hole and installing hole are coaxial relative and run through brick cup body; Described brick cup body comprises body and lower body, it is characterized in that, the outer diameter D of described brick cup body is 380 ~ 400mm, and the overall height H of brick cup body is 440 ~ 470mm, upper body height h is 180 ~ 230mm, and the height of lower body is greater than the height of body.
2. combined type high life low cost ladle pocket block according to claim 1, it is characterized in that, upper body, lower body adopt different castable one-time cast-formings respectively, described upper body adopts high-purity chromium magnesium corundum castable moulding by casting, upper body height h is 200 ~ 220mm, and lower body adopts chromium magnesium corundum castable moulding by casting.
3. combined type high life low cost ladle pocket block according to claim 1, it is characterized in that, described steel outlet hole comprises truncated cone-shaped channel and cylindrical channel, truncated cone-shaped channel and partial cylindrical shapes passage are positioned at body, round platform passage is positioned at the top of cylindrical channel and is coaxial docking with cylindrical channel, the upper port diameter d 1 of truncated cone-shaped channel (3) is 203 ~ 210mm, and lower port diameter d 2 is 152 ~ 160mm.
4. combined type high life low cost ladle pocket block according to claim 3, is characterized in that, frustum cone height c is 45 ~ 55mm, and the diameter of cylindrical channel is consistent with the lower port diameter d 2 of top truncated cone-shaped channel.
5. combined type high life low cost ladle pocket block according to claim 1, it is characterized in that, remainder cylindrical channel and mounting hole site are in lower body, described installing hole is truncated cone-shaped, truncated cone-shaped mounting hole site is in the below of cylindrical channel and be coaxial docking with cylindrical channel, the lower port diameter d 3 of truncated cone-shaped installing hole is 182 ~ 190mm, and upper port diameter is consistent with the diameter of the cylindrical channel of steel outlet hole.
6. combined type high life low cost ladle pocket block according to claim 1, is characterized in that, the cylindrical channel diameter to be positioned at is identical with the cylindrical channel diameter being positioned at lower, and cylindrical channel total height b is 230 ~ 263mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520329237.4U CN204621070U (en) | 2015-05-20 | 2015-05-20 | A kind of combined type high life low cost ladle pocket block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520329237.4U CN204621070U (en) | 2015-05-20 | 2015-05-20 | A kind of combined type high life low cost ladle pocket block |
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| Publication Number | Publication Date |
|---|---|
| CN204621070U true CN204621070U (en) | 2015-09-09 |
Family
ID=54040133
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|---|---|---|---|
| CN201520329237.4U Expired - Fee Related CN204621070U (en) | 2015-05-20 | 2015-05-20 | A kind of combined type high life low cost ladle pocket block |
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| CN (1) | CN204621070U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104827020A (en) * | 2015-05-20 | 2015-08-12 | 山东钢铁股份有限公司 | Combined type ladle nozzle seating brick with long service life and low cost and preparing technology thereof |
| CN108031829A (en) * | 2017-12-13 | 2018-05-15 | 钢城集团凉山瑞海实业有限公司 | Hot ladle pocket block repairing mould and restorative procedure |
| CN111848189A (en) * | 2020-07-24 | 2020-10-30 | 湖南省娄底市宏冶炉料有限责任公司 | Novel scouring-resistant thermal shock-resistant impact brick, preparation method and current stabilizer |
-
2015
- 2015-05-20 CN CN201520329237.4U patent/CN204621070U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104827020A (en) * | 2015-05-20 | 2015-08-12 | 山东钢铁股份有限公司 | Combined type ladle nozzle seating brick with long service life and low cost and preparing technology thereof |
| CN108031829A (en) * | 2017-12-13 | 2018-05-15 | 钢城集团凉山瑞海实业有限公司 | Hot ladle pocket block repairing mould and restorative procedure |
| CN111848189A (en) * | 2020-07-24 | 2020-10-30 | 湖南省娄底市宏冶炉料有限责任公司 | Novel scouring-resistant thermal shock-resistant impact brick, preparation method and current stabilizer |
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