CN109759574A - A kind of submersed nozzle inner lining material of low Young's modulus - Google Patents
A kind of submersed nozzle inner lining material of low Young's modulus Download PDFInfo
- Publication number
- CN109759574A CN109759574A CN201910237236.XA CN201910237236A CN109759574A CN 109759574 A CN109759574 A CN 109759574A CN 201910237236 A CN201910237236 A CN 201910237236A CN 109759574 A CN109759574 A CN 109759574A
- Authority
- CN
- China
- Prior art keywords
- inner lining
- modulus
- magnesia
- young
- lining 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.)
- Granted
Links
Abstract
The invention discloses a kind of submersed nozzle inner lining materials of low Young's modulus, belong to the diligent fire-resistant Material Field of iron and steel metallurgical industry continuous casting.It is characterized in that steel matrix of the Young's modulus of mouth of a river inner lining material lower than production, specially composition are magnesia 90-95%, the phenolic resin of additional 5-10% is as bonding agent.The density of the granularity 0.1mm-1.0mm of magnesia, magnesium oxide particle should be no more than 3.35g/cm3, optimum density range is 3.0-3.3g/cm3, thickness of inner lining 3-8mm.The Young's modulus of inner lining material of the present invention is lower than steel matrix, can be crushed in drawing process, can significantly reduce the fracture of wire of the ultra-deep drawing class wire rod as caused by refractory material melting loss, peeling.
Description
Technical field
The invention belongs to fire resisting material fields, are related to a kind of immersion water gap for continuously casting inner lining material.
Background technique
It is the ultra-deep drawing eka-gold metal products of representative to being mingled in wire rod base material using steel bead wire, steel cord and diamond wire
The requirement of object is extremely harsh.Once being mingled with there are large scale is indeformable in steel, steel wire will be sent out during drawing or plying
Raw broken string, the production efficiency that frequent broken string seriously affects steel wire even result in steel wire and directly scrap.Studies have shown that using silicomanganese
Under the conditions of the smelting process of deoxidation and low basicity slag refining, the melting loss of refractory material in submersed nozzle, peel off be large scale not
Deform the main source of field trash.
In order to solve the problems, such as that submersed nozzle introduces that large scale is indeformable is mingled with, Chinese patent CN 201537698U is public
A kind of design of quadripuntal SEN of cloth.The design has two big main points, is to improve folder by the design at the four hole mouths of a river first
The floating of sundries, secondly mouth of a river ontology is asked using what magnesium carbonaceous overcame that common submersed nozzle brings that aluminium is mingled with into casting
Topic.However, the patent does not clearly require magnesium carbonaceous material.In fact, any type of submersed nozzle material is all
Can not avoid completely steel pouring process melting loss, peel off.Although magnesia carbon refractory solves the problems, such as to be mingled with containing aluminium, still
It can introduce and be mingled with containing magnesium, the magnesia of high Young's modulus is mingled with the fracture of wire for also resulting in wire rod drawing and combining process.
For the current aggregate of resistance to material, including aluminium oxide, magnesium aluminate spinel, mullite, zirconium oxide etc., Young's modulus is equal
It is bigger than steel matrix, it will form stress in drawing process and concentrate, lead to drawing fracture of wire, therefore be badly in need of studying a kind of low Young's modulus
The submersed nozzle inner lining material of change causes ultra-deep drawing class wire rod fracture of wire to solve refractory material for immersed sprue melting loss, peel off
The problem of.
Summary of the invention
It is of the invention aiming at the problem that refractory material for immersed sprue melting loss, peeling cause ultra-deep drawing class wire rod fracture of wire
Purpose is to propose that a kind of Young's modulus is lower than the mouth of a river inner lining material of steel matrix, since the Young's modulus of such material is lower than base steel
The Young's modulus of body also can be broken apart in drawing process even if its melting loss, peeling off to molten steel, not will cause wire rod drawing and
The fracture of wire of plying process.
To achieve the above object, the technical solution adopted by the present invention is that: in a kind of submersed nozzle of low Young's modulus
Lining material.Young's modulus of the Young's modulus of the mouth of a river inner lining material lower than the steel matrix of production.
The specific scheme is that by weight percentage, it is characterised in that:
Composition is magnesia 90-95%, and the phenolic resin of additional 5-10% is as bonding agent.The granularity of magnesia
The density of 0.1mm-1.0mm, magnesium oxide particle should be no more than 3.35g/cm3, further preferred density is 3.0-3.3g/cm3, interior
Liner thickness degree 3-8mm.
Compared with prior art, the invention has the benefit that
A kind of submersed nozzle inner lining material of low Young's modulus proposed by the present invention, utilizes the low Young's modulus of low-density
Magnesia as primary raw material, on the one hand can reduce the cost of raw material, on the other hand the Young mould of inner lining material of the present invention
Amount is lower than the Young's modulus of steel matrix, can be crushed in drawing process, and can significantly reduce is caused by refractory material melting loss, peeling
Ultra-deep drawing class wire rod fracture of wire.
Detailed description of the invention
Attached drawing 1 is the Young's modulus of magnesia and the relationship of density, shows that density is less than 3.35g/cm in figure3Oxidation
The Young's modulus of magnesium is lower than 200GPa (Young's modulus of steel)；
Attached drawing 2 is submersed nozzle lining diagram of the present invention；
Attached drawing 3 is pattern of the 1 high Young's modulus magnesia of comparative example in drawing process；
Attached drawing 4 is pattern of the low Young's modulus magnesia of embodiment 1 in drawing process.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment, the present invention is described in further details.
As shown in Figure 1, a kind of submersed nozzle inner lining material of low Young's modulus, composition is magnesia 90-
95%, the phenolic resin of additional 5-10% is as bonding agent.
Granularity in the magnesia is in 0.1-1.0mm.
The density of the magnesium oxide particle is not more than 3.35g/cm3, preferred density range is 3.0-3.3g/cm3.(the volume
The magnesia of density can be bought directly from the market)
The thickness of inner lining 3-8mm.
Embodiment 1
A kind of submersed nozzle inner lining material of low Young's modulus, by the raw material mixing by following weight percent
At magnesia 93%, additional 7% phenolic resin is as bonding agent.The granularity 0.1mm-1.0mm of magnesia, magnesium oxide particle
Density 3.13g/cm3, thickness of inner lining 5mm.
Embodiment 2
A kind of submersed nozzle inner lining material of low Young's modulus, by the raw material mixing by following weight percent
At magnesia 90%, additional 10% phenolic resin is as bonding agent.The granularity 0.1mm-1.0mm of magnesia, magnesium oxide particle
Density 3.0g/cm3, thickness of inner lining 3mm.
Embodiment 3
A kind of submersed nozzle inner lining material of low Young's modulus, by the raw material mixing by following weight percent
At magnesia 95%, additional 5% phenolic resin is as bonding agent.The granularity 0.1mm-1.0mm of magnesia, magnesium oxide particle
Density 3.24g/cm3, thickness of inner lining 6mm.
Embodiment 4
A kind of submersed nozzle inner lining material of low Young's modulus, by the raw material mixing by following weight percent
At magnesia 94%, additional 6% phenolic resin is as bonding agent.The granularity 0.1mm-1.0mm of magnesia, magnesium oxide particle
Density 3.27g/cm3, thickness of inner lining 7mm.
Embodiment 5
A kind of submersed nozzle inner lining material of low Young's modulus, by the raw material mixing by following weight percent
At magnesia 92%, additional 8% phenolic resin is as bonding agent.The granularity 0.1mm-1.0mm of magnesia, magnesium oxide particle
Density 3.29g/cm3, thickness of inner lining 8mm.
Comparative example 1
Comparative example 1 compared with Example 1, by the density 3.13g/cm of magnesium oxide particle in embodiment 13It is substituted for magnesia
The density 3.7g/cm of particle3, remaining condition is identical, specifically:
The submersed nozzle inner lining material that comparative example 1 provides is mixed by the raw material of following weight percent, magnesia
93%, additional 7% phenolic resin is as bonding agent.The granularity 0.1mm-1.0mm of magnesia, the density of magnesium oxide particle
3.7g/cm3, thickness of inner lining 5mm.
To examine effect of the present invention, by above-mentioned liner material and ontology material is compound prepares submersed nozzle, sample 1-5 long
Liner proportion in the mouth of a river is matched by embodiment 1-5 respectively, and comparative example long nozzle liner proportion is matched by comparative example 1, and bulk material is former
Expect weight percent are as follows: corundum 55%, vitreous silica 15%, graphite 20%, additional phenolic resin 8% are used as bonding agent, incite somebody to action this
Body material and inner lining material control volatile matter 1%, by bulk material and inner lining material under 150MPa pressure in 60 DEG C of dryings
Isostatic pressing, and be heat-treated at a temperature of 1000 DEG C, keep the temperature 6h.Manufactured submersed nozzle is used for the production of cord steel 82A.
Test example 1
The slab that technique described in embodiment 1 and comparative example 1 produces, which is rolled into specification, isGren rod, heat
Wire rod is rolled through multi pass drawing into steel wire, and intermediate sample diameter hasFinally drawing finished product steel wire diameter isSample among the drawing of diameter 2.0mm is sampled, MgO inclusions in scanning electron microscope examination steel are used
Form.
Fig. 3 is that 1 gained diameter of comparative example isIntermediate sample in the form that is mingled with of magnesia, magnesia is mingled with
Grain is coarse, and deformation is insufficient, and maximum width is close to 20 μm.
Fig. 4 is that 1 gained diameter of embodiment isIntermediate sample in the form that is mingled with of magnesia, magnesia is along drawing
Direction distortion is abundant, and maximum width is less than 1 μm.
Test example 2
The slab that technique described in embodiment 1, embodiment 2, embodiment 3, embodiment 4, embodiment 5 and comparative example 1 is produced
Being rolled into specification isGren rod, through multi pass drawing at steel wire, intermediate sample diameter has gren rodFinally drawing finished product steel wire diameter isThe wire broken rate of wire rod is counted, as shown in table 1,
Embodiment 1, embodiment 2,5 gained wire rod of embodiment 3, embodiment 4 and embodiment ton steel wire broken rate be respectively 0.85 time/ton
Steel, 0.63 time/ton steel, 0.79 time/ton steel, 0.97 time/ton steel and 1.03 time/ton steel, hence it is evident that lower than 2.34 times of comparative example 1/
Ton steel.
The wire broken rate of the mouth of a river liner production Wire Rod Steel for Curtain String Purpose of 1 different materials of table
| Project | Ton steel fracture of wire number, secondary/ton steel |
| Embodiment 1 | 0.85 |
| Embodiment 2 | 0.63 |
| Embodiment 3 | 0.79 |
| Embodiment 4 | 0.97 |
| Embodiment 5 | 1.03 |
| Comparative example 1 | 2.34 |
Illustrated by the above test example 1 and 2, uses " a kind of immersion water of low Young's modulus proposed by the invention
Mouth inner lining material " is even if liner magnesium oxide material melting loss, peeling are into steel, and the magnesia of such low Young's modulus is in wire rod drawing
Process can be crushed, separate, and the present invention can be significantly reduced to be caused by submersed nozzle inner lining refractory melting loss, peeling
Fracture of wire.
The above embodiments are only used to illustrate and not limit the technical solutions of the present invention, although referring to above-described embodiment to this hair
It is bright to be described in detail, those skilled in the art should understand that: still the present invention can be modified or be waited
With replacement, without departing from the spirit or scope of the invention, or any substitutions, should all cover in power of the invention
In sharp claimed range.
Claims (5)
1. a kind of submersed nozzle inner lining material of low Young's modulus, it is characterised in that: the Young of the mouth of a river inner lining material
Steel matrix of the modulus lower than production.
2. the submersed nozzle inner lining material of low Young's modulus as described in claim 1, it is characterised in that: in the mouth of a river
By weight percentage, composition is magnesia 90-95% to lining material, and the phenolic resin of additional 5-10% is as bonding agent.
3. the submersed nozzle inner lining material of low Young's modulus as claimed in claim 2, it is characterised in that: the magnesia
The density of particle is no more than 3.35g/cm3。
4. the submersed nozzle inner lining material of low Young's modulus as claimed in claim 3, it is characterised in that: the magnesia
The density of particle is 3.0-3.3g/cm3。
5. the submersed nozzle inner lining material of low Young's modulus as claimed in claim 2, it is characterised in that: the magnesia
Granularity be 0.1mm-1.0mm, thickness of inner lining 3-8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910237236.XA CN109759574B (en) | 2019-03-27 | 2019-03-27 | Low-Young modulus submerged nozzle lining material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910237236.XA CN109759574B (en) | 2019-03-27 | 2019-03-27 | Low-Young modulus submerged nozzle lining material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109759574A true CN109759574A (en) | 2019-05-17 |
| CN109759574B CN109759574B (en) | 2020-10-16 |
Family
ID=66459935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910237236.XA Active CN109759574B (en) | 2019-03-27 | 2019-03-27 | Low-Young modulus submerged nozzle lining material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109759574B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110918970A (en) * | 2019-11-15 | 2020-03-27 | 中天钢铁集团有限公司 | Submerged nozzle lining material for reducing wire breakage rate in silicon-deoxidized steel processing process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0839214A (en) * | 1994-07-30 | 1996-02-13 | Kurosaki Refract Co Ltd | Nozzle for continuous casting |
| CN1678415A (en) * | 2002-08-22 | 2005-10-05 | 黑崎播磨株式会社 | Method for continuous casting of molten steel for thin sheet |
| CN101168192A (en) * | 2007-11-29 | 2008-04-30 | 苏州宝蠡耐火材料有限公司 | Bottom pouring brick |
| CN104174839A (en) * | 2013-05-27 | 2014-12-03 | 泰州市旺鑫耐火材料有限公司 | Composite water gap for clean steel production |
| CN108004374A (en) * | 2017-11-27 | 2018-05-08 | 邢台钢铁有限责任公司 | A kind of method realized oxide in cord steel and be mingled with low Young's modulus |
-
2019
- 2019-03-27 CN CN201910237236.XA patent/CN109759574B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0839214A (en) * | 1994-07-30 | 1996-02-13 | Kurosaki Refract Co Ltd | Nozzle for continuous casting |
| CN1678415A (en) * | 2002-08-22 | 2005-10-05 | 黑崎播磨株式会社 | Method for continuous casting of molten steel for thin sheet |
| CN101168192A (en) * | 2007-11-29 | 2008-04-30 | 苏州宝蠡耐火材料有限公司 | Bottom pouring brick |
| CN104174839A (en) * | 2013-05-27 | 2014-12-03 | 泰州市旺鑫耐火材料有限公司 | Composite water gap for clean steel production |
| CN108004374A (en) * | 2017-11-27 | 2018-05-08 | 邢台钢铁有限责任公司 | A kind of method realized oxide in cord steel and be mingled with low Young's modulus |
Non-Patent Citations (1)
| Title |
|---|
| 木村世意等: "帘线钢中夹杂物的控制技术", 《鞍钢技术》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110918970A (en) * | 2019-11-15 | 2020-03-27 | 中天钢铁集团有限公司 | Submerged nozzle lining material for reducing wire breakage rate in silicon-deoxidized steel processing process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109759574B (en) | 2020-10-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102335738B (en) | Composite submerged nozzle and manufacturing method thereof | |
| CN111004041B (en) | Ladle bottom castable taking aluminum-chromium slag as main material and preparation method thereof | |
| CN100364931C (en) | Novel aluminum-zirconium-carbon slide brick for flow control in metallurgy industry | |
| CN110143807A (en) | A kind of ladle slag line metallic composite low carbon magnesium carbon brick and preparation method thereof | |
| CN109627026A (en) | A kind of regeneration silicon carbide Al2O3- SiC-C iron runner castable and preparation method thereof | |
| CN106588048A (en) | Steelmaking tundish guard plate and castable therefor | |
| CN109759574A (en) | A kind of submersed nozzle inner lining material of low Young's modulus | |
| CN109487036B (en) | High-purity manganese 18 high-manganese steel and preparation method thereof | |
| CN109650918B (en) | Environment-friendly chromium-containing refractory castable and preparation method thereof | |
| CN111940715B (en) | Anti-blocking submerged nozzle | |
| CN110918970B (en) | Submerged nozzle lining material for reducing wire breakage rate in silicon-deoxidized steel processing process | |
| CN112608149A (en) | Ultrahigh-pulling-speed immersion type drain nozzle erosion-resistant material and preparation method thereof | |
| CN111548129A (en) | Anti-corrosion aluminum magnesium castable | |
| CN115385681A (en) | Magnesium-aluminum-chromium spinel castable and preparation method thereof | |
| CN115108842B (en) | Long nozzle for high-oxygen steel continuous casting | |
| CN210151147U (en) | Thermal shock resistant magnesia carbon brick for converter trunnion | |
| CN110759716A (en) | Slag-corrosion-resistant magnesia carbon brick for ladle molten pool and preparation method thereof | |
| JP2018075601A (en) | Semi-immersion nozzle | |
| JPH02225369A (en) | Highly corrosion resistant brick for ladle | |
| JPS6060978A (en) | Nozzle composition for continuous casting | |
| JP7481982B2 (en) | Manufacturing method of magnesia-chrome bricks | |
| JP5388305B2 (en) | Semili Bond Magnesia-Chrome Brick | |
| TW201107496A (en) | Continuous steel casting method and refractory used therefor | |
| JPH03138054A (en) | Submerged nozzle for continuous casting | |
| JPH105985A (en) | Stopper for opening/closing molten metal pouring nozzle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190603 Address after: 213000 No. 1 Zhongwu Avenue, Changzhou City, Jiangsu Province Applicant after: Zhongtian Iron Steel Group Co.,Ltd. Applicant after: Changzhou Bangyi Iron and Steel Co., Ltd. Address before: 213000 No. 1 Zhongwu Avenue, Changzhou City, Jiangsu Province Applicant before: Zhongtian Iron Steel Group Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |