CN103936446A - Method for preparing guide rod casting material for floating plug - Google Patents
Method for preparing guide rod casting material for floating plug Download PDFInfo
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- CN103936446A CN103936446A CN201410147287.0A CN201410147287A CN103936446A CN 103936446 A CN103936446 A CN 103936446A CN 201410147287 A CN201410147287 A CN 201410147287A CN 103936446 A CN103936446 A CN 103936446A
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Abstract
The invention discloses a method for preparing a guide rod casting material for a floating plug, and belongs to the technical field of casting materials. The method comprises the following steps: (1) weighing 60-64 parts of bauxite, 33-36 parts of magnesia, 5-7 parts of waste high alumina bricks, 6-8 parts of blast furnace gas dust and 4-6 parts of calcium-free chromium slag in parts by mass, and stirring for 20 minutes to obtain a base casting material; (2) preparing a bonding agent from the following components in parts by weight: 30-35 parts of phenolic resin, 8-12 parts of furfuryl alcohol resin, 5-9 parts of diphenyl methane diisocyanate, 10-14 parts of urea formaldehyde resin, 1 part of titanium dioxide, 2-3 parts of borax, 4-6 parts of silicon carbide, 0.5-1 part of neodymium oxide, 0.3 part of yttrium oxide and 1-1.5 parts of zirconium oxide; (3) mixing the base casting material and the bonding agent at a mass ratio of 100:(1.5-2.0) for 40 minutes to obtain the guide rod casting material. By adopting the method, wastes are recycled, so that the production cost is reduced, and the demolding and maintenance time of a guide rod is greatly shortened.
Description
Technical field
The present invention relates to mould material technical field, more particularly, relate to a kind of preparation method of guide bar mould material of floating plug.
Background technology
In the time that converter smelting terminates, all slag all floats over molten steel surface, and in converter tapping process, especially, after most of molten steel is discharged, at tap hole place, molten steel can form stronger eddy current, and slag inevitably flows out with molten steel.Owing to containing a large amount of compositions harmful to molten steel in slag, and these objectionable constituent will return at any time or be dissolved in molten steel, affect the purity of molten steel and final steel product quality, simultaneously, a large amount of slags also consumes alloy by the form with different, has reduced the yield of alloy of liquid steel refining process.For this reason, iron and steel enterprise all adopts Converter Skimming technology to control the lower quantity of slag both at home and abroad.
In order to improve converter slag-resisting effect, conduct extensive research at pushing off the slag technical elements both at home and abroad, since day in 1970 slag-blocking ball tapping of the present invention slag stopping method, tens kinds of pushing off the slag modes are successively invented, wherein, floating plug is widely used with high, the lower quantity of slag of its pushing off the slag success ratio feature few, accurate positioning.Existing floating plug generally comprises floating plug body part and guide bar part, the use that is assembled together of floating plug body part and guide bar part, as China Patent No. ZL201220126908.3, invention and created name is: the disclosed technical scheme of floating plug that a kind of converter tapping is used.Guide bar comprises core and flame retardant coating, and flame retardant coating is wrapped in the periphery edge of core, and the two ends of core all stretch out flame retardant coating, and core is generally selected Deformed Steel Bars.
At present, the conventional making method of guide bar part is: (1) adopts steel pipe to cut into two and makes upper/lower die, and upper/lower die is combined into the tubular structure of hollow, its bottom is provided with the round collar, its top adopts annulus card, then is screwed into post, and its diameter is 40 ~ 50mm; (2) be made into gravity flow pouring material with bauxitic clay, magnesia powder and bonding agent etc., with manually adding mould material device, on shaking table, the vibration while feeding in raw material, until mould material is filled it up with the mould of tubular structure; (3) demoulding maintenance, the preserving period of the demoulding, is: maintenance 24 hours more than 15 DEG C, 2 ~ 10 DEG C with interior maintenance 36 hours, 5 DEG C of following can not normally productions, reason is that bonding agent is inoperative, the demoulding after maintenance, after the demoulding, also take maintenance 7 ~ 10 days, carrying out high bake can use.
In prior art, guide bar is produced and is had following technical problem: the demoulding curing time of (1) guide bar is long, cause production efficiency low, and production cost is high, its key is that bonding agent and the mould material base-material in the flame retardant coating of guide bar needs further to improve, to reduce demoulding curing time; (2) insufficient strength of the flame retardant coating of guide bar, in carrying, easily damage in installation process, the flame retardant coating high temperature strength of normal use, especially guide bar that affect guide bar is inadequate, affects pushing off the slag effect in converter when pushing off the slag use.
Summary of the invention
1. the technical problem that invention will solve
The object of the invention is to overcome the problem that demoulding curing time is long, high temperature strength is not enough of guide bar in prior art, a kind of preparation method of guide bar mould material of floating plug is provided, the guide bar mould material that adopts the present invention to prepare, the demoulding curing time that can greatly shorten guide bar is long, and guide bar flame retardant coating in carrying, installation, use procedure is not easy to damage.
2. technical scheme
For achieving the above object, technical scheme provided by the invention is:
The preparation method of the guide bar mould material of a kind of floating plug of the present invention, the steps include:
The preparation of step 1, mould material base-material
Take 60 ~ 64 parts of bauxitic clays by mass fraction, 33 ~ 36 parts, magnesia, 5 ~ 7 parts of waste and old high alumina bricks, 6 ~ 8 parts of blast furnace dusts and without 4 ~ 6 parts of calcium chromium slags, wherein: described bauxitic clay by particle diameter is≤1mm, 3 ~ 1mm, 5 ~ 3mm, 8 ~ 5mm powder composition, wherein the powder of particle diameter≤1mm accounts for 25% of bauxitic clay total mass, the powder of particle diameter 3 ~ 1mm accounts for 56% of bauxitic clay total mass, the powder of particle diameter 5 ~ 3mm accounts for 15% of bauxitic clay total mass, the powder of particle diameter 8 ~ 5mm accounts for 4% of bauxitic clay total mass, by above-mentioned bauxitic clay, magnesia, waste and old high alumina brick, blast furnace dust and without calcium chromium slag be uniformly mixed 20 minutes mould material base-material,
The preparation of step 2, bonding agent
The preparation process of bonding agent comprises the steps:
(A), take 4 ~ 6 parts, 2 ~ 3 parts of 1 part of titanium dioxide, borax and silicon carbide by mass fraction, in stirred pot, add titanium dioxide, borax and silicon carbide successively, be uniformly mixed at normal temperatures 20 minutes mixture A, wherein: the median size of borax is 1 ~ 3mm;
(B), take 30 ~ 35 parts, resol, 8 ~ 12 parts of furfuryl alcohol resins, 5 ~ 9 parts of diphenylmethanediisocyanates, 10 ~ 14 parts of urea-formaldehyde resins by mass fraction, in stirred pot, add resol, furfuryl alcohol resin, diphenylmethanediisocyanate, urea-formaldehyde resin successively, at 35 ~ 40 DEG C of temperature, be uniformly mixed 50 minutes and obtain mixture B;
(C), take 0.5 ~ 1 part of Neodymium trioxide, 0.3 part of yttrium oxide, 1 ~ 1.5 part of zirconium white by mass fraction, the mixture A of step (A) is added in the mixture B of step (B), and add Neodymium trioxide, yttrium oxide and zirconium white simultaneously, at 35 ~ 40 DEG C of temperature, be uniformly mixed 20 minutes, leave standstill after 30 minutes, continue at normal temperatures stirring and within 40 minutes, obtain bonding agent;
The preparation of step 3, guide bar mould material
Bonding agent prepared by step 2 joins mould material base-material prepared by step 1, and wherein: the mass ratio of mould material base-material and bonding agent is 100:1.5 ~ 2.0, mix and blend obtains guide bar mould material after 40 minutes.
Preferably, in step 1 by mass fraction take 62 parts of bauxitic clays, 35 parts, magnesia, 6 parts of waste and old high alumina bricks, 7 parts of blast furnace dusts, without 5 parts of calcium chromium slags.In step 2, take 33 parts, resol, 10 parts of furfuryl alcohol resins, 7 parts of diphenylmethanediisocyanates, 12 parts of urea-formaldehyde resins, 1 part of titanium dioxide, 2.5 parts of boraxs, 5 parts, silicon carbide, 0.8 part of Neodymium trioxide, 0.3 part of yttrium oxide, 1.2 parts of zirconium whites by mass fraction.In step 3, the mass ratio of mould material base-material and bonding agent is 100:1.8.
3. beneficial effect
Adopt technical scheme provided by the invention, compared with existing known technology, there is following unusual effect:
(1) preparation method of the guide bar mould material of a kind of floating plug of the present invention, its bonding agent adopts resol, furfuryl alcohol resin, diphenylmethanediisocyanate and urea-formaldehyde resin to be used in conjunction with, and allocating titanium dioxide, borax, silicon carbide into uses as admixture, the guide bar demoulding curing time that adopts mould material of the present invention to produce is shortened greatly, the preserving period of the demoulding is 20 ~ 40 minutes, and after the demoulding, maintenance 10 ~ 12 hours, has improved production efficiency;
(2) preparation method of the guide bar mould material of a kind of floating plug of the present invention, in its bonding agent, add Neodymium trioxide, yttrium oxide, zirconium white to carry out modification, and the present invention has determined specific ratio control by theory and practice, make to adopt the guide bar high temperature strength of mould material production of the present invention high, and in carrying, installation, use procedure, flame retardant coating is not easy to damage, and has improved pushing off the slag efficiency;
(3) preparation method of the guide bar mould material of a kind of floating plug of the present invention, using waste and old high alumina brick, blast furnace dust with use as mould material base-material without calcium chromium slag, make these wastes obtain resource recycling utilization, reduced widely the production cost of guide bar mould material.
Embodiment
For further understanding content of the present invention, below in conjunction with embodiment, the invention will be further described.
embodiment 1
The guide bar mould material of a kind of floating plug of the present embodiment, comprise mould material base-material and bonding agent, each component of mould material base-material is by following mass parts composition: bauxitic clay 62kg, magnesia 35 kg, waste and old high alumina brick 6 kg, blast furnace dust 7 kg, without calcium chromium slag 5 kg; Each component of bonding agent forms by following mass parts: resol 33kg, furfuryl alcohol resin 10kg, diphenylmethanediisocyanate 7kg, urea-formaldehyde resin 12kg, titanium dioxide 1kg, borax 2.5kg, silicon carbide 5kg, Neodymium trioxide 0.8kg, yttrium oxide 0.3kg, zirconium white 1.2kg; Described mould material base-material and the mass ratio of bonding agent are 100:1.8.
The preparation method of the guide bar mould material of a kind of floating plug of the present embodiment, its concrete steps are:
The preparation of step 1, mould material base-material
Take bauxitic clay 62kg by mass fraction, magnesia 35 kg, waste and old high alumina brick 6 kg, blast furnace dust 7 kg, without calcium chromium slag 5 kg, wherein: described bauxitic clay by particle diameter is≤1mm, 3 ~ 1mm, 5 ~ 3mm, 8 ~ 5mm powder composition, wherein the powder of particle diameter≤1mm accounts for 25% of bauxitic clay total mass, the powder of particle diameter 3 ~ 1mm accounts for 56% of bauxitic clay total mass, the powder of particle diameter 5 ~ 3mm accounts for 15% of bauxitic clay total mass, the powder of particle diameter 8 ~ 5mm accounts for 4% of bauxitic clay total mass, by above-mentioned bauxitic clay, magnesia, waste and old high alumina brick, blast furnace dust and without calcium chromium slag be uniformly mixed 20 minutes mould material base-material.Magnesia in the present embodiment, waste and old high alumina brick, blast furnace dust, be broken for 1 ~ 1.5mm without the median size of calcium chromium slag.
The preparation of step 2, bonding agent
The preparation process of bonding agent comprises the steps:
(A), take titanium dioxide 1kg, borax 2.5kg, silicon carbide 5kg by mass fraction, in stirred pot, add titanium dioxide, borax and silicon carbide successively, be uniformly mixed at normal temperatures 20 minutes and obtain mixture A, wherein: the median size of borax is that 1 ~ 3mm all can;
(B), take resol 33kg, furfuryl alcohol resin 10kg, diphenylmethanediisocyanate 7kg, urea-formaldehyde resin 12kg by mass fraction, in stirred pot, add resol, furfuryl alcohol resin, diphenylmethanediisocyanate, urea-formaldehyde resin successively, at 35 ~ 40 DEG C of temperature, be uniformly mixed 50 minutes and obtain mixture B;
(C), take Neodymium trioxide 0.8kg, yttrium oxide 0.3kg, zirconium white 1.2kg by mass fraction, the mixture A of step (A) is added in the mixture B of step (B), and add Neodymium trioxide, yttrium oxide and zirconium white simultaneously, at 35 ~ 40 DEG C of temperature, be uniformly mixed 20 minutes, leave standstill after 30 minutes, continue at normal temperatures stirring and within 40 minutes, obtain bonding agent.
The preparation of step 3, guide bar mould material
Bonding agent prepared by step 2 joins mould material base-material prepared by step 1, and wherein: the mass ratio of mould material base-material and bonding agent is 100:1.8, mix and blend obtains guide bar mould material after 40 minutes.
embodiment 2
The guide bar mould material of a kind of floating plug of the present embodiment, comprise mould material base-material and bonding agent, each component of mould material base-material is by following mass parts composition: bauxitic clay 64kg, magnesia 33 kg, waste and old high alumina brick 7 kg, blast furnace dust 6 kg, without calcium chromium slag 6 kg; Each component of bonding agent forms by following mass parts: resol 30kg, furfuryl alcohol resin 12kg, diphenylmethanediisocyanate 5kg, urea-formaldehyde resin 14kg, titanium dioxide 1kg, borax 2kg, silicon carbide 6kg, Neodymium trioxide 0.5kg, yttrium oxide 0.3kg, zirconium white 1.5kg; Described mould material base-material and the mass ratio of bonding agent are 100:1.5.
The preparation method of the guide bar mould material of a kind of floating plug of the present embodiment, its concrete steps are:
The preparation of step 1, mould material base-material
Take bauxitic clay 64kg by mass fraction, magnesia 33 kg, waste and old high alumina brick 7 kg, blast furnace dust 6 kg, without calcium chromium slag 6 kg, wherein: described bauxitic clay by particle diameter is≤1mm, 3 ~ 1mm, 5 ~ 3mm, 8 ~ 5mm powder composition, wherein the powder of particle diameter≤1mm accounts for 25% of bauxitic clay total mass, the powder of particle diameter 3 ~ 1mm accounts for 56% of bauxitic clay total mass, the powder of particle diameter 5 ~ 3mm accounts for 15% of bauxitic clay total mass, the powder of particle diameter 8 ~ 5mm accounts for 4% of bauxitic clay total mass, by above-mentioned bauxitic clay, magnesia, waste and old high alumina brick, blast furnace dust and without calcium chromium slag be uniformly mixed 20 minutes mould material base-material.
The preparation of step 2, bonding agent
The preparation process of bonding agent comprises the steps:
(A), take titanium dioxide 1kg, borax 2kg, silicon carbide 6kg by mass fraction, in stirred pot, add titanium dioxide, borax and silicon carbide successively, be uniformly mixed at normal temperatures 20 minutes mixture A, wherein: the median size of borax is that 1 ~ 3mm all can;
(B), take resol 30kg, furfuryl alcohol resin 12kg, diphenylmethanediisocyanate 5kg, urea-formaldehyde resin 14kg by mass fraction, in stirred pot, add resol, furfuryl alcohol resin, diphenylmethanediisocyanate, urea-formaldehyde resin successively, at 35 ~ 40 DEG C of temperature, be uniformly mixed 50 minutes and obtain mixture B;
(C), take Neodymium trioxide 0.5kg, yttrium oxide 0.3kg, zirconium white 1.5kg by mass fraction, the mixture A of step (A) is added in the mixture B of step (B), and add Neodymium trioxide, yttrium oxide and zirconium white simultaneously, at 35 ~ 40 DEG C of temperature, be uniformly mixed 20 minutes, leave standstill after 30 minutes, continue at normal temperatures stirring and within 40 minutes, obtain bonding agent.Bonding agent cohesiveness prepared by the present embodiment is good, and the usage quantity of bonding agent is little.
The preparation of step 3, guide bar mould material
Bonding agent prepared by step 2 joins mould material base-material prepared by step 1, and wherein: the mass ratio of mould material base-material and bonding agent is 100:1.5, mix and blend obtains guide bar mould material after 40 minutes.
embodiment 3
The guide bar mould material of a kind of floating plug of the present embodiment, comprise mould material base-material and bonding agent, each component of mould material base-material is by following mass parts composition: bauxitic clay 60kg, magnesia 36 kg, waste and old high alumina brick 5 kg, blast furnace dust 8 kg, without calcium chromium slag 4 kg; Each component of bonding agent forms by following mass parts: resol 35kg, furfuryl alcohol resin 8kg, diphenylmethanediisocyanate 9kg, urea-formaldehyde resin 10kg, titanium dioxide 1kg, borax 3kg, silicon carbide 4kg, Neodymium trioxide 1kg, yttrium oxide 0.3kg, zirconium white 1kg; Described mould material base-material and the mass ratio of bonding agent are 100:2.0.
The preparation method of the guide bar mould material of a kind of floating plug of the present embodiment, its concrete steps are:
The preparation of step 1, mould material base-material
Take bauxitic clay 60kg by mass fraction, magnesia 36 kg, waste and old high alumina brick 5 kg, blast furnace dust 8 kg, without calcium chromium slag 4 kg, wherein: described bauxitic clay by particle diameter is≤1mm, 3 ~ 1mm, 5 ~ 3mm, 8 ~ 5mm powder composition, wherein the powder of particle diameter≤1mm accounts for 25% of bauxitic clay total mass, the powder of particle diameter 3 ~ 1mm accounts for 56% of bauxitic clay total mass, the powder of particle diameter 5 ~ 3mm accounts for 15% of bauxitic clay total mass, the powder of particle diameter 8 ~ 5mm accounts for 4% of bauxitic clay total mass, by above-mentioned bauxitic clay, magnesia, waste and old high alumina brick, blast furnace dust and without calcium chromium slag be uniformly mixed 20 minutes mould material base-material,
The preparation of step 2, bonding agent
The preparation process of bonding agent comprises the steps:
(A), take titanium dioxide 1kg, borax 3kg, silicon carbide 4kg by mass fraction, in stirred pot, add titanium dioxide, borax and silicon carbide successively, be uniformly mixed at normal temperatures 20 minutes mixture A, wherein: the median size of borax is that 1 ~ 3mm all can;
(B), take resol 35kg, furfuryl alcohol resin 8kg, diphenylmethanediisocyanate 9kg, urea-formaldehyde resin 10kg by mass fraction, in stirred pot, add resol, furfuryl alcohol resin, diphenylmethanediisocyanate, urea-formaldehyde resin successively, at 35 ~ 40 DEG C of temperature, be uniformly mixed 50 minutes and obtain mixture B;
(C), take Neodymium trioxide 1kg, yttrium oxide 0.3kg, zirconium white 1kg by mass fraction, the mixture A of step (A) is added in the mixture B of step (B), and add Neodymium trioxide, yttrium oxide and zirconium white simultaneously, at 35 ~ 40 DEG C of temperature, be uniformly mixed 20 minutes, leave standstill after 30 minutes, continue at normal temperatures stirring and within 40 minutes, obtain bonding agent.
The preparation of step 3, guide bar mould material
Bonding agent prepared by step 2 joins mould material base-material prepared by step 1, and wherein: the mass ratio of mould material base-material and bonding agent is 100:2.0, mix and blend obtains guide bar mould material after 40 minutes.
Mould material prepared by the present invention and core are built the guide bar that is floating plug after moulding, and guide bar and the assembling of floating plug body are floating plug, can be used as slag-removing device for tapping of converter and use.In prior art, the preserving period of the demoulding, is: maintenance 24 hours more than 15 DEG C, and 2 ~ 10 DEG C with interior maintenance 36 hours, 5 DEG C of following can not normally productions, reason is that bonding agent is inoperative, the demoulding after maintenance, after the demoulding, also take maintenance 7 ~ 10 days, carrying out high bake can use.Demoulding curing time while adopting mould material prepared by the present embodiment 1-3 for the production of guide bar shortens greatly, and the preserving period of the demoulding is 20 ~ 40 minutes, and maintenance 10 ~ 12 hours simple baking after the demoulding, has improved production efficiency.In addition, guide bar high temperature strength improves greatly, and in carrying, installation, use procedure, flame retardant coating spoilage is 0%, has improved pushing off the slag efficiency.The present invention uses as mould material base-material using waste and old high alumina brick, blast furnace dust with without calcium chromium slag dexterously, makes these wastes obtain resource recycling utilization, has reduced widely the production cost of guide bar mould material.
Claims (4)
1. a preparation method for the guide bar mould material of floating plug, is characterized in that, the steps include:
The preparation of step 1, mould material base-material
Take 60 ~ 64 parts of bauxitic clays by mass fraction, 33 ~ 36 parts, magnesia, 5 ~ 7 parts of waste and old high alumina bricks, 6 ~ 8 parts of blast furnace dusts and without 4 ~ 6 parts of calcium chromium slags, wherein: described bauxitic clay by particle diameter is≤1mm, 3 ~ 1mm, 5 ~ 3mm, 8 ~ 5mm powder composition, wherein the powder of particle diameter≤1mm accounts for 25% of bauxitic clay total mass, the powder of particle diameter 3 ~ 1mm accounts for 56% of bauxitic clay total mass, the powder of particle diameter 5 ~ 3mm accounts for 15% of bauxitic clay total mass, the powder of particle diameter 8 ~ 5mm accounts for 4% of bauxitic clay total mass, by above-mentioned bauxitic clay, magnesia, waste and old high alumina brick, blast furnace dust and without calcium chromium slag be uniformly mixed 20 minutes mould material base-material,
The preparation of step 2, bonding agent
The preparation process of bonding agent comprises the steps:
(A), take 4 ~ 6 parts, 2 ~ 3 parts of 1 part of titanium dioxide, borax and silicon carbide by mass fraction, in stirred pot, add titanium dioxide, borax and silicon carbide successively, be uniformly mixed at normal temperatures 20 minutes mixture A, wherein: the median size of borax is 1 ~ 3mm;
(B), take 30 ~ 35 parts, resol, 8 ~ 12 parts of furfuryl alcohol resins, 5 ~ 9 parts of diphenylmethanediisocyanates, 10 ~ 14 parts of urea-formaldehyde resins by mass fraction, in stirred pot, add resol, furfuryl alcohol resin, diphenylmethanediisocyanate, urea-formaldehyde resin successively, at 35 ~ 40 DEG C of temperature, be uniformly mixed 50 minutes and obtain mixture B;
(C), take 0.5 ~ 1 part of female of oxidation, 0.3 part of yttrium oxide, 1 ~ 1.5 part of zirconium white by mass fraction, the mixture A of step (A) is added in the mixture B of step (B), and add simultaneously oxidation female, yttrium oxide and zirconium white, at 35 ~ 40 DEG C of temperature, be uniformly mixed 20 minutes, leave standstill after 30 minutes, continue at normal temperatures stirring and within 40 minutes, obtain bonding agent;
The preparation of step 3, guide bar mould material
Bonding agent prepared by step 2 joins mould material base-material prepared by step 1, and wherein: the mass ratio of mould material base-material and bonding agent is 100:1.5 ~ 2.0, mix and blend obtains guide bar mould material after 40 minutes.
2. the preparation method of the guide bar mould material of a kind of floating plug according to claim 1, is characterized in that: in step 1 by mass fraction take 62 parts of bauxitic clays, 35 parts, magnesia, 6 parts of waste and old high alumina bricks, 7 parts of blast furnace dusts, without 5 parts of calcium chromium slags.
3. the preparation method of the guide bar mould material of a kind of floating plug according to claim 1 and 2, is characterized in that: in step 2, take 33 parts, resol, 10 parts of furfuryl alcohol resins, 7 parts of diphenylmethanediisocyanates, 12 parts of urea-formaldehyde resins, 1 part of titanium dioxide, 2.5 parts of boraxs, 5 parts, silicon carbide, 0.8 part of Neodymium trioxide, 0.3 part of yttrium oxide, 1.2 parts of zirconium whites by mass fraction.
4. according to the preparation method of the guide bar mould material of a kind of floating plug described in claim 2 or 3, it is characterized in that: in step 3, the mass ratio of mould material base-material and bonding agent is 100:1.8.
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| CN201410147287.0A CN103936446A (en) | 2014-04-14 | 2014-04-14 | Method for preparing guide rod casting material for floating plug |
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| CN201410147287.0A CN103936446A (en) | 2014-04-14 | 2014-04-14 | Method for preparing guide rod casting material for floating plug |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108083775A (en) * | 2017-12-25 | 2018-05-29 | 武汉科技大学 | Copper converter top magnesia-composite material of silicon carbide and preparation method thereof |
| CN117447192A (en) * | 2023-11-02 | 2024-01-26 | 衡水兆星复合材料有限公司 | Slag blocking plug and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103755360A (en) * | 2013-12-16 | 2014-04-30 | 芜湖市天雄新材料科技有限公司 | Guide rod pouring material of slag blocking plug used for converter tapping slag blocking |
-
2014
- 2014-04-14 CN CN201410147287.0A patent/CN103936446A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103755360A (en) * | 2013-12-16 | 2014-04-30 | 芜湖市天雄新材料科技有限公司 | Guide rod pouring material of slag blocking plug used for converter tapping slag blocking |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108083775A (en) * | 2017-12-25 | 2018-05-29 | 武汉科技大学 | Copper converter top magnesia-composite material of silicon carbide and preparation method thereof |
| CN108083775B (en) * | 2017-12-25 | 2020-08-25 | 武汉科技大学 | Magnesium oxide-silicon carbide composite material for upper part of copper smelting converter and preparation method thereof |
| CN117447192A (en) * | 2023-11-02 | 2024-01-26 | 衡水兆星复合材料有限公司 | Slag blocking plug and preparation method thereof |
| CN117447192B (en) * | 2023-11-02 | 2024-05-03 | 衡水兆星复合材料有限公司 | Slag blocking plug and preparation method thereof |
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Application publication date: 20140723 |