CN108715545A - A kind of continuous casting tundish dry material and preparation method thereof - Google Patents
A kind of continuous casting tundish dry material and preparation method thereof Download PDFInfo
- Publication number
- CN108715545A CN108715545A CN201810645193.4A CN201810645193A CN108715545A CN 108715545 A CN108715545 A CN 108715545A CN 201810645193 A CN201810645193 A CN 201810645193A CN 108715545 A CN108715545 A CN 108715545A
- Authority
- CN
- China
- Prior art keywords
- continuous casting
- casting tundish
- preparation
- tundish dry
- dry material
- 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.)
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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
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/03—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite
- C04B35/04—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite based on magnesium oxide
- C04B35/043—Refractories from grain sized mixtures
-
- 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
- B22D41/02—Linings
-
- 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
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
- C04B35/634—Polymers
- C04B35/63404—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B35/63444—Nitrogen-containing polymers, e.g. polyacrylamides, polyacrylonitriles, polyvinylpyrrolidone [PVP], polyethylenimine [PEI]
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/74—Physical characteristics
- C04B2235/77—Density
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
Abstract
The present invention relates to a kind of continuous casting tundish dry materials and preparation method thereof, belong to unshape refractory field.Its scheme is：It is the PVP of raw material and 4-8wt% as bonding agent using magnesia or forsterite, after evenly mixing, is made after vibration or ramming process, baking demoulding.Continuous casting tundish dry material of the present invention have many advantages, such as to have no irritating odor in use generation, it is environmental-friendly, energy saving, be easy to that automatic turning packet, service life are long, resistance to slag is good.
Description
Technical field
The invention belongs to unshape refractory technical fields, and in particular to a kind of continuous casting tundish dry material and its preparation
Method.
Background technology
Tundish is the intermediate store that molten steel is diverted to crystallizer from ladle in steel-making continuous casting production process, clean to ensureing
Net steel-making is most important with more stove continuous castings.The service life of tundish dry material is longer, general 20 hours or more reachable, Gao Zheda
It is more and more wider for the application of dry materials by 60-70 hours, therefore in recent years.Dry materials are dried due to its moisture-free in low temperature
There is enough intensity after roasting, pours steel so cold can wrap, in addition it, which has, does not pollute molten steel, and service life is long, safeguards simply, is easy to
The advantages that turning over packet cleaning.Bonding agent used at present mainly has phenolic resin, inorganic salts and polyhydroxy-sugar three classes.Phenolic resin knot
Mixture can release the pungent odours such as part formaldehyde, cresols, dicarbaldehyde in baking process, all cause to damage to work human and environment
Evil, and since carbon residue is higher therefore mild steel is less adapted to after its solidification；Inorganic salts bonding agent is relatively low due to containing fusing point
Inorganic matter, therefore be on active service during be easy to happen oversintering so that dry materials stick together with tundish permanent liner, it is difficult to
Automatic turning packet, and it is poor using it as dry materials resistance to slag made from bonding agent；Make dry type made from bonding agent with polyhydroxy-sugar
Expect that service life is short, production cost is high.
Therefore need to invent that a kind of service life is long, can realize automatic turning packet and be responsible for a task until it is completed among environmental-friendly novel continuous casting
Formula material.
Invention content
Tundish is the intermediate store that molten steel is diverted to crystallizer from ladle in steel-making continuous casting production process, clean to ensureing
Net steel-making is most important with more stove continuous castings.The service life of tundish dry material is longer, general 20 hours or more reachable, Gao Zheda
It is more and more wider for the application of dry materials by 60-70 hours, therefore in recent years.Dry materials are dried due to its moisture-free in low temperature
There is enough intensity after roasting, pours steel so cold can wrap, in addition it, which has, does not pollute molten steel, and service life is long, safeguards simply, is easy to
The advantages that turning over packet cleaning.Bonding agent used at present mainly has phenolic resin, inorganic salts and polyhydroxy-sugar three classes.Phenolic resin knot
Mixture can release the pungent odours such as part formaldehyde, cresols, dicarbaldehyde in baking process, all cause to damage to work human and environment
Evil, and since carbon residue is higher therefore mild steel is less adapted to after its solidification；Inorganic salts bonding agent is relatively low due to containing fusing point
Inorganic matter, therefore be on active service during be easy to happen oversintering so that dry materials stick together with tundish permanent liner, it is difficult to
Automatic turning packet, and it is poor using it as dry materials resistance to slag made from bonding agent；Make dry type made from bonding agent with polyhydroxy-sugar
Expect that service life is short, production cost is high.
Therefore need to invent that a kind of service life is long, can realize automatic turning packet and be responsible for a task until it is completed among environmental-friendly novel continuous casting
Formula material.
Specific implementation mode
With reference to specific implementation method, the invention will be further described, not limiting of its scope.
Embodiment 1
A kind of continuous casting tundish dry material and preparation method thereof.With 95 magnesia（5-3）15wt%, 95 magnesia（3-1）30wt%, 95 magnesium
Sand（≤1）30wt% and 95 magnesia（≤0.074）25wt% is the PVP of raw material and the K13-18 of 4wt% as bonding agent.
Dry materials prepared by the present invention are through ramming process, after being toasted 6 hours at 180 DEG C, after testing:Strength at normal temperature
For 1.80MPa, cold crushing strength 5.54MPa, density 2.34g/cm3；After keeping the temperature 3 hours at 1500 DEG C, room temperature is anti-
Folding is 9.25MPa, cold crushing strength 14.44MPa, bulk density 2.38g/cm3 by force.
Embodiment 2
A kind of continuous casting tundish dry material and preparation method thereof.With forsterite（5-3）10wt%, forsterite（3-1）35wt%,
95 magnesia（≤1）30wt% and 95 magnesia（≤0.074）25wt% is the PVP of raw material and the K13-18 of 6wt% as combining
Agent.
Dry materials prepared by the present invention are through ramming process, after being toasted 6 hours at 180 DEG C, after testing:Strength at normal temperature
For 2.05MPa, cold crushing strength 6.79MPa, density 2.19g/cm3；After keeping the temperature 3 hours at 1500 DEG C, room temperature is anti-
Folding is 10.80MPa, cold crushing strength 15.11MPa, bulk density 2.30g/cm3 by force.
Embodiment 3
A kind of continuous casting tundish dry material and preparation method thereof.With forsterite（5-3）20wt%, forsterite（3-1）25wt%,
95 magnesia（≤1）25wt% and 95 magnesia（≤0.074）30wt% is the PVP of raw material and the K88-96 of 6wt% as combining
Agent.
Dry materials prepared by the present invention are through vibration moulding, after being toasted 6 hours at 380 DEG C, after testing:Strength at normal temperature
For 0.30MPa, cold crushing strength 0.40MPa, density 2.15g/cm3；After keeping the temperature 3 hours at 1500 DEG C, room temperature is anti-
Folding is 5.20MPa, cold crushing strength 7.81MPa, bulk density 2.26g/cm3 by force.
Embodiment 4
A kind of continuous casting tundish dry material and preparation method thereof.With 95 magnesia（5-3）20wt%, 95 magnesia（3-1）25wt%, 95 magnesium
Sand（≤1）25wt% and 95 magnesia（≤0.074）30wt% is the PVP of raw material and the K88-96 of 8wt% as bonding agent.
Dry materials prepared by the present invention are through vibration moulding, after being toasted 6 hours at 380 DEG C, after testing:Strength at normal temperature
For 0.35MPa, cold crushing strength 0.58MPa, density 2.07g/cm3；After keeping the temperature 3 hours at 1500 DEG C, room temperature is anti-
Folding is by force 8.30MPa, cold crushing strength 12.30MPa, bulk density are 2.14 g/cm3.
Claims (2)
1. a kind of continuous casting tundish dry material and preparation method thereof, it is characterised in that：Using magnesia or forsterite as raw material, and it is outer
Add the PVP of 4-8wt% as bonding agent.
2. continuous casting tundish dry material according to claim 1, it is characterised in that：Raw material after vibration or ramming process,
It is toasted at 130 ~ 380 DEG C, tundish dry material is can be prepared by after demoulding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810645193.4A CN108715545A (en) | 2018-06-21 | 2018-06-21 | A kind of continuous casting tundish dry material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810645193.4A CN108715545A (en) | 2018-06-21 | 2018-06-21 | A kind of continuous casting tundish dry material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
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| CN108715545A true CN108715545A (en) | 2018-10-30 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810645193.4A Pending CN108715545A (en) | 2018-06-21 | 2018-06-21 | A kind of continuous casting tundish dry material and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110078478A (en) * | 2019-04-30 | 2019-08-02 | 浙江攀盛冶金材料有限公司 | A kind of novel modified high attachment continuous casting production dry materials |
| CN110183218A (en) * | 2019-04-30 | 2019-08-30 | 浙江攀盛冶金材料有限公司 | A kind of preparation method of modified high attachment continuous casting production dry materials |
| CN111348896A (en) * | 2018-12-24 | 2020-06-30 | 新疆八一钢铁股份有限公司 | Working layer for forming refractory lining of continuous casting tundish |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101077523A (en) * | 2007-06-22 | 2007-11-28 | 河北理工大学 | Method for preparing dry working lining |
| CN101891490A (en) * | 2010-07-21 | 2010-11-24 | 河北理工大学 | Crack grouting material for blast furnace body and preparation method thereof |
| JP2011173737A (en) * | 2010-02-23 | 2011-09-08 | Mitsubishi Heavy Ind Ltd | Method for producing crucible for melting metal |
| CN102585127A (en) * | 2011-12-22 | 2012-07-18 | 营口圣泉高科材料有限公司 | Modified phenolic resin for dry material, preparation method for modified phenolic resin and dry material |
| CN103936438A (en) * | 2014-03-27 | 2014-07-23 | 中钢集团洛阳耐火材料研究院有限公司 | Combining system for low pressure moulding of continuous-casting three critical parts |
| CN107140993A (en) * | 2017-07-13 | 2017-09-08 | 华北理工大学 | A kind of modified bonding agent |
| CN107235738A (en) * | 2017-06-30 | 2017-10-10 | 长兴泓矿炉料有限公司 | A kind of preparation method of fiber reinforced refractory material |
-
2018
- 2018-06-21 CN CN201810645193.4A patent/CN108715545A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101077523A (en) * | 2007-06-22 | 2007-11-28 | 河北理工大学 | Method for preparing dry working lining |
| JP2011173737A (en) * | 2010-02-23 | 2011-09-08 | Mitsubishi Heavy Ind Ltd | Method for producing crucible for melting metal |
| CN101891490A (en) * | 2010-07-21 | 2010-11-24 | 河北理工大学 | Crack grouting material for blast furnace body and preparation method thereof |
| CN102585127A (en) * | 2011-12-22 | 2012-07-18 | 营口圣泉高科材料有限公司 | Modified phenolic resin for dry material, preparation method for modified phenolic resin and dry material |
| CN103936438A (en) * | 2014-03-27 | 2014-07-23 | 中钢集团洛阳耐火材料研究院有限公司 | Combining system for low pressure moulding of continuous-casting three critical parts |
| CN107235738A (en) * | 2017-06-30 | 2017-10-10 | 长兴泓矿炉料有限公司 | A kind of preparation method of fiber reinforced refractory material |
| CN107140993A (en) * | 2017-07-13 | 2017-09-08 | 华北理工大学 | A kind of modified bonding agent |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111348896A (en) * | 2018-12-24 | 2020-06-30 | 新疆八一钢铁股份有限公司 | Working layer for forming refractory lining of continuous casting tundish |
| CN110078478A (en) * | 2019-04-30 | 2019-08-02 | 浙江攀盛冶金材料有限公司 | A kind of novel modified high attachment continuous casting production dry materials |
| CN110183218A (en) * | 2019-04-30 | 2019-08-30 | 浙江攀盛冶金材料有限公司 | A kind of preparation method of modified high attachment continuous casting production dry materials |
| CN110078478B (en) * | 2019-04-30 | 2022-02-08 | 浙江攀盛冶金材料有限公司 | Modified high-adhesion dry material for continuous casting tundish |
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Application publication date: 20181030 |