CN106747511A - Sintering free low carbon is combined anti-blocking middle water-coating port - Google Patents
Sintering free low carbon is combined anti-blocking middle water-coating port Download PDFInfo
- Publication number
- CN106747511A CN106747511A CN201611159420.XA CN201611159420A CN106747511A CN 106747511 A CN106747511 A CN 106747511A CN 201611159420 A CN201611159420 A CN 201611159420A CN 106747511 A CN106747511 A CN 106747511A
- Authority
- CN
- China
- Prior art keywords
- layered material
- corundum
- low carbon
- powder
- free low
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/50—Pouring-nozzles
- B22D41/52—Manufacturing or repairing thereof
- B22D41/54—Manufacturing or repairing thereof characterised by the materials used therefor
Abstract
Anti-blocking middle water-coating port is combined the invention discloses a kind of sintering free low carbon, it is made up of interior layered material and outer layered material；The interior layered material includes crystalline flake graphite, corundum, magnesium aluminium spinel powder, calcined alumina, metallic aluminium powder, metallic silicon power, carborundum and binding agent；The outer layered material includes corundum, vitreous silica, mild-clay and binding agent；Raw materials used percentage by weight is 1~10% crystalline flake graphite, 50~90% corundum, 1~15% magnesium aluminium spinel powder, 0.5~2% metallic aluminium powder, 1~6% metallic silicon power, 0.4~6% boron carbide (or carborundum) in the interior layered material；Raw materials used percentage by weight is 50~90% alumina (or corundum), 3~45% vitreous silica, 1~9% mild-clay in the outer layered material；The present invention can effectively overcome the electrical and thermal conductivity performance of crystalline flake graphite, it is to avoid the blocking at the mouth of a river, and because inside adds, bonding agent is easy to solidification or colloid is combined, and can reduce environmental pollution with sintering free low carbon, and reduces cost improves service life.
Description
Technical field
The present invention relates to refractory for continuous casting technical field, specifically a kind of sintering free low carbon is combined anti-blocking middle bag
The mouth of a river.
Background technology
Middle water-coating port is applied in continuous casting production, and its major function is by water-coating port in adjustment and Integral stopper head
Fit clearance come control opening for tundish to pour, close and crystallizer steel stream, to ensure molten steel, liquid level is steady in a crystallizer
The stabilization of fixed and continuous casting process.The use condition of middle water-coating port is very harsh, should bear coal gas of high temperature baking, pour the steel initial stage
Strong thermal shock and violent scour, undergo the erosion of molten steel again.
Middle water-coating port of the prior art has excellent conductive and heat-conductive due to the introducing of crystalline flake graphite in crystalline flake graphite
Performance, so as to the temperature of molten steel can be reduced quickly, causes the viscosity of molten steel greatly, and some elements can then be separated out from molten steel, be drawn
Play the blocking at the mouth of a river.
The content of the invention
Defect and deficiency it is an object of the invention to be directed to prior art, there is provided a kind of sintering free low carbon be combined it is anti-blocking in
Water-coating port, using complex technique, can effectively overcome the electrical and thermal conductivity performance of crystalline flake graphite, it is to avoid the blocking at the mouth of a river, due to interior
Portion adds bonding agent to be easy to solidification, can with it is unburned into, thus reduce environmental pollution, reduces cost improves service life.
To achieve the above object, the technical solution adopted by the present invention is：A kind of sintering free low carbon is combined anti-blocking middle water-coating port, it
It is made up of interior layered material and outer layered material；The interior layered material includes crystalline flake graphite, corundum, magnesium aluminium spinel powder, calcined alumina, metal
Aluminium powder, metallic silicon power, carborundum, boron carbide and binding agent；The outer layered material includes alumina (or corundum), vitreous silica, soft
Clay and binding agent.
Used as further improvement of the invention, raw materials used percentage by weight is 1~10% squama in the interior layered material
Piece graphite, 50~90% corundum, 1~15% magnesium aluminium spinel powder, 0.5~2% metallic aluminium powder, 1~6% metallic silicon
Powder, 0.4~6% boron carbide (or carborundum).
As further improvement of the invention, in the outer layered material raw materials used percentage by weight be 50~80% it is firm
Jade, 3~45% vitreous silica, 1~9% mild-clay.
Beneficial effects of the present invention are：Using complex technique, the electrical and thermal conductivity performance of crystalline flake graphite can be effectively overcome, keep away
Exempt from the blocking at the mouth of a river, because inside adds bonding agent to be easy to solidification, environmental pollution can be reduced with sintering free low carbon, reduces cost is matched somebody with somebody
Side takes optimization, greatly improves service life.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with specific embodiment
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the present invention, and
It is not used in the restriction present invention.
A kind of sintering free low carbon is combined anti-blocking middle water-coating port, and it is made up of interior layered material and outer layered material；The interior layered material includes squama
Piece graphite, corundum, magnesium aluminium spinel powder, calcined alumina, metallic aluminium powder, metallic silicon power, boron carbide, carborundum and binding agent；
The outer layered material includes alumina (or corundum), vitreous silica, mild-clay and binding agent.
Embodiment one：
In the interior layered material raw materials used percentage by weight be 1~7% crystalline flake graphite, 50~90% corundum, 1~
15% magnesium aluminium spinel powder, 0.5~2% metallic aluminium powder, 1~6% metallic silicon power, 0.4~6% boron carbide (or carbon
SiClx).
In the outer layered material raw materials used percentage by weight be 50~90% alumina (or corundum), 3~45% it is molten
Fused silica, 1~5% mild-clay, 4% feldspar powder.
Embodiment two：
Raw materials used percentage by weight is 1% crystalline flake graphite, 50% corundum, 2% magnalium in the interior layered material
Spinel powder, 0.5% metallic aluminium powder, 1% metallic silicon power, 1% carborundum.
In the outer layered material raw materials used percentage by weight be 50% alumina, 5% vitreous silica, 1% it is soft
Clay, 4% feldspar powder.
Embodiment three：
Raw materials used percentage by weight is 7% crystalline flake graphite, 75% corundum, 15% magnalium in the interior layered material
Spinel powder, 1% metallic aluminium powder, 1% metallic silicon power, 1% carborundum.
In the outer layered material raw materials used percentage by weight be 70% alumina, 21% vitreous silica, 9% it is soft
Clay.
Example IV：
Raw materials used percentage by weight is 4% crystalline flake graphite, 76.8% corundum, 10% magnesium in the interior layered material
Aluminate powder, 1.2% metallic aluminium powder, 4% metallic silicon power, 4% carborundum.
In the outer layered material raw materials used percentage by weight be 80% corundum, 15% vitreous silica, 5% it is soft
Clay.
This specific embodiment uses complex technique, can effectively overcome the electrical and thermal conductivity performance of crystalline flake graphite, it is to avoid water
The blocking of mouth, because inside adds bonding agent to be easy to solidification, can reduce environmental pollution with sintering free low carbon, and reduces cost, formula is adopted
Optimization is taken, service life is greatly improved.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be in other specific forms realized.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires to be limited rather than described above, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each implementation method is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Specification an as entirety, the technical scheme in each embodiment can also be formed into those skilled in the art through appropriately combined
May be appreciated other embodiment.
Claims (3)
1. a kind of sintering free low carbon is combined anti-blocking middle water-coating port, it is characterised in that：It is made up of interior layered material and outer layered material；The internal layer
Material include crystalline flake graphite, corundum, magnesium aluminium spinel powder, calcined alumina, metallic aluminium powder, metallic silicon power, carborundum, boron carbide and
Binding agent；The outer layered material includes alumina (or corundum), vitreous silica, mild-clay and binding agent.
2. a kind of sintering free low carbon according to claim 1 is combined anti-blocking middle water-coating port, it is characterised in that：In the interior layered material
Raw materials used percentage by weight be 1~10% crystalline flake graphite, 50~90% corundum, 1~15% magnesium aluminium spinel powder,
0.5~2% metallic aluminium powder, 1~6% metallic silicon power, 0.4~6% boron carbide (or carborundum).
3. a kind of sintering free low carbon according to claim 1 is combined anti-blocking middle water-coating port, it is characterised in that：In the outer layered material
Raw materials used percentage by weight be 50~90% alumina (or corundum), 3~45% vitreous silica, 1~5% it is soft viscous
Soil, 4% feldspar powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611159420.XA CN106747511B (en) | 2016-12-15 | 2016-12-15 | Baking-free low-carbon composite anti-blocking tundish nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611159420.XA CN106747511B (en) | 2016-12-15 | 2016-12-15 | Baking-free low-carbon composite anti-blocking tundish nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106747511A true CN106747511A (en) | 2017-05-31 |
| CN106747511B CN106747511B (en) | 2020-03-31 |
Family
ID=58889236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611159420.XA Active CN106747511B (en) | 2016-12-15 | 2016-12-15 | Baking-free low-carbon composite anti-blocking tundish nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106747511B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021197002A1 (en) * | 2020-03-30 | 2021-10-07 | 宝山钢铁股份有限公司 | Anti-nodulation tundish gas-permeable upper nozzle |
| CN116041080A (en) * | 2023-02-10 | 2023-05-02 | 西峡县西保冶金材料有限公司 | Scour-resistant low-carbon long-service-life stopper rod and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003226583A (en) * | 2002-02-01 | 2003-08-12 | Kurosaki Harima Corp | Unshaped refractory for hot metal |
| CN101474671A (en) * | 2009-01-19 | 2009-07-08 | 马鞍山市益江高温陶瓷制造有限公司 | Spinelle ventilated tundish filling pipe end and method for producing the same |
| CN101891444A (en) * | 2010-07-09 | 2010-11-24 | 三一重工股份有限公司 | Reinforced layer coating for use in hot investment casting and preparation method thereof |
| CN101927340A (en) * | 2010-05-17 | 2010-12-29 | 王世泰 | Aluminium (zirconium)-carbon long nozzle, submerged entry nozzle and monolithic stopper refractory products for continuous casting |
-
2016
- 2016-12-15 CN CN201611159420.XA patent/CN106747511B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003226583A (en) * | 2002-02-01 | 2003-08-12 | Kurosaki Harima Corp | Unshaped refractory for hot metal |
| CN101474671A (en) * | 2009-01-19 | 2009-07-08 | 马鞍山市益江高温陶瓷制造有限公司 | Spinelle ventilated tundish filling pipe end and method for producing the same |
| CN101927340A (en) * | 2010-05-17 | 2010-12-29 | 王世泰 | Aluminium (zirconium)-carbon long nozzle, submerged entry nozzle and monolithic stopper refractory products for continuous casting |
| CN101891444A (en) * | 2010-07-09 | 2010-11-24 | 三一重工股份有限公司 | Reinforced layer coating for use in hot investment casting and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021197002A1 (en) * | 2020-03-30 | 2021-10-07 | 宝山钢铁股份有限公司 | Anti-nodulation tundish gas-permeable upper nozzle |
| CN116041080A (en) * | 2023-02-10 | 2023-05-02 | 西峡县西保冶金材料有限公司 | Scour-resistant low-carbon long-service-life stopper rod and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106747511B (en) | 2020-03-31 |
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