CN1335281A - Sliding sprue tile for smelting high-oxygen steel and calcium treated steel - Google Patents

Sliding sprue tile for smelting high-oxygen steel and calcium treated steel Download PDF

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Publication number
CN1335281A
CN1335281A CN 01126439 CN01126439A CN1335281A CN 1335281 A CN1335281 A CN 1335281A CN 01126439 CN01126439 CN 01126439 CN 01126439 A CN01126439 A CN 01126439A CN 1335281 A CN1335281 A CN 1335281A
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China
Prior art keywords
steel
smelting
oxygen
calcium treated
treated steel
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CN 01126439
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Chinese (zh)
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CN1209317C (en
Inventor
金从进
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Baoshan Iron and Steel Co Ltd
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Baoshan Iron and Steel Co Ltd
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Priority to CN 01126439 priority Critical patent/CN1209317C/en
Publication of CN1335281A publication Critical patent/CN1335281A/en
Application granted granted Critical
Publication of CN1209317C publication Critical patent/CN1209317C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The refractory material for the sliding tap-hole block consists of magnesite and/or magnesia alumina spinel refractory material 90-100 % with the rest being zirconia or titanium oxide refractory material. The sliding tap-hole block of the present invention has excellent mechanical performance, chemical stability, corrosion resistance, metal burn-out resistance and oxidation resistance at high temperature, and when it is used in smelting high-oxygen steel and calcium treated steel, it has long service life, light weight and low cost.

Description

High-oxygen steel and calcium treated steel sliding sprue tile for smelting
(1) technical field:
The present invention relates to a kind of sliding sprue tile for smelting, particularly a kind of high-oxygen steel and calcium treated steel sliding sprue tile for smelting.
(2) background technology:
The sliding sprue tile for smelting that uses mainly contains Al at present 2O 3-C (as Japanese kokai publication hei 11-36012), MgO-C and ZrO 2Carbon containing refractories such as-C and contain aluminium oxynitride (as Chinese CN85109111A) material.For high-oxygen steel, total oxygen height in the steel, FeO height, carbon containing refractory is inefficient with containing the aluminium oxynitride material thus, it will produce oxidation and cause material loose, be to influence its long-lived major reason, thereby limited carbonaceous material and the application that contains aluminium oxynitride; Al 2O 3Material and zirconia material antagonism FeO aggressiveness also are very poor refractory materialss.For the calcium treated steel that has 20~40ppm free [Ca] in the steel, salic, silicon oxide, mullite material are inefficient, and it will cause damage serious owing to generating eutectic, limit the application of such material; Though zirconia material satisfies the requirement of calcium treated steel, there is big, the expensive problem of weight.
(3) summary of the invention:
The object of the present invention is to provide a kind of high-oxygen steel and calcium treated steel sliding sprue tile for smelting, improve its work-ing life, reduce its cost.
For achieving the above object, the present invention adopts following technical scheme:
A kind of high-oxygen steel and calcium treated steel sliding sprue tile for smelting is characterized in that its refractory materials by weight percentage, consist of: one or both are 90~100% in the refractory materials of magnesia and aluminum-spinel, and surplus is the refractory materials of zirconium white or titanium oxide.
Magnesia is purity greater than 97% magnesia.
Aluminum-spinel is for by weight percentage, and content of magnesia is greater than 28% aluminum-spinel.
By weight percentage, join 0~4% MgCl outward 2
The present invention compared with prior art, have following outstanding feature and remarkable advantage: sliding sprue tile for smelting provided by the invention, contain the magnesia more than 90% and the refractory materials of aluminum-spinel, at high temperature has the favorable mechanical performance, the chemical stability height, corrosion-resistant, and anti-molten metal and resistance of oxidation are strong.Under the high-oxygen steel working conditions, its work-ing life will be longer than carbon containing slide gate nozzle and zirconium white slide gate nozzle.Under the calcium treated steel working conditions, its work-ing life will be longer than salic, silicon oxide, mullite slide gate nozzle; Compare with the zirconium white slide gate nozzle, have in light weight and the low advantage of price.
Compare with traditional carbon containing sliding sprue tile for smelting, this sliding sprue tile for smelting also has following characteristics:
1. do not add carbon raw material such as graphite, carbon black etc. in the batching, free from environmental pollution, workman's working conditions is greatly improved;
2. the oxidation products of carbonaceous material is CO or CO 2, oxidation tail skid short texture forms a large amount of apparent pores, causes molten steel and slag to infiltrate, and finally causes erosion-resisting characteristics to descend.
(4) specific embodiment:
Following table is listed sliding sprue tile for smelting composition (percentage by weight) and the characteristic of 5 embodiment:
Embodiment     1     2     3     4     5
Highly-purity magnesite     80     -    100     88     98
Aluminum-spinel     15    100     -     10     -
Zirconia     5     -     -     -     -
Titanium oxide     2     2
    MgCl 2, join outward     3     3     3     3     3
Body is close, g/cm3     3.1     3.05     3.2     3.12     3.2
Apparent pore, %     14     14     10     13     9
Compressive resistance, MPa     100     120     145     110     115
Rupture strength, MPa     12     14     10     9     8
Anti-oxidant Fine Fine Fine Fine Fine
Anti-FeO performance Fine Fine Good Fine Good
Anti-CaO, [Ca] performance Good Good Fine Good Fine

Claims (4)

1. high-oxygen steel and calcium treated steel sliding sprue tile for smelting, it is characterized in that its refractory materials by weight percentage, consist of: one or both are 90~100% in the refractory materials of magnesia and aluminum-spinel, and surplus is the refractory materials of zirconium white or titanium oxide.
2. high-oxygen steel according to claim 1 and calcium treated steel sliding sprue tile for smelting is characterized in that magnesia is purity greater than 97% magnesia.
3. high-oxygen steel according to claim 1 and calcium treated steel sliding sprue tile for smelting is characterized in that aluminum-spinel for by weight percentage, and content of magnesia is greater than 28% aluminum-spinel.
4. according to claim 1 or 2 or 3 described high-oxygen steels and calcium treated steel sliding sprue tile for smelting, it is characterized in that outer by weight percentage 0~4% the MgCl that joins 2
CN 01126439 2001-08-10 2001-08-10 Sliding sprue tile for smelting high-oxygen steel and calcium treated steel Expired - Fee Related CN1209317C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 01126439 CN1209317C (en) 2001-08-10 2001-08-10 Sliding sprue tile for smelting high-oxygen steel and calcium treated steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 01126439 CN1209317C (en) 2001-08-10 2001-08-10 Sliding sprue tile for smelting high-oxygen steel and calcium treated steel

Publications (2)

Publication Number Publication Date
CN1335281A true CN1335281A (en) 2002-02-13
CN1209317C CN1209317C (en) 2005-07-06

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Family Applications (1)

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CN 01126439 Expired - Fee Related CN1209317C (en) 2001-08-10 2001-08-10 Sliding sprue tile for smelting high-oxygen steel and calcium treated steel

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CN (1) CN1209317C (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1325435C (en) * 2004-06-30 2007-07-11 宝山钢铁股份有限公司 Chromium free refractory material for RH vacuum furnace lining
CN101580381A (en) * 2009-06-22 2009-11-18 河北理工大学 Magnesium aluminate spinel- zirconium oxide-titanium oxide composite material and preparation method thereof
CN101580402A (en) * 2009-06-22 2009-11-18 河北理工大学 Magnesia alumina spinel-zirconia-ferric oxide composite material and preparation method thereof
CN102249718A (en) * 2011-06-10 2011-11-23 鞍山浦项特种耐火材料有限公司 Aluminum magnesium carbon sliding plate brick for stopping slag at steel tapping hole of converter
CN101519309B (en) * 2008-02-27 2012-01-11 宝山钢铁股份有限公司 Zirconium spinel carbon based slide gate nozzle brick
CN102442829A (en) * 2011-09-28 2012-05-09 中钢集团耐火材料有限公司 Metal composite impermeable and unfired magnesia spinel brick for furnace liner of refining furnace and preparation method of magnesia spinel brick
CN102584293A (en) * 2012-02-24 2012-07-18 辽宁科技大学 Method for preparing magnesium-zirconium-carbon slide gate nozzle
CN101786889B (en) * 2009-12-24 2012-07-18 上海宝威陶瓷新材料有限公司 Zirconia/spinel nozzle brick
CN102643099A (en) * 2012-05-15 2012-08-22 武汉科技大学 Magnesium-zirconium ring of slide plate for calcium-treated steel and preparation method thereof
CN102924095A (en) * 2012-08-08 2013-02-13 营口青花耐火材料股份有限公司 Magnesium-zirconium-aluminum bricks used in vacuum degassing furnace, and preparation method thereof
CN102992782A (en) * 2011-09-14 2013-03-27 中钢集团耐火材料有限公司 Refractory brick used for oxygen-fuel combustion glass kiln

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1325435C (en) * 2004-06-30 2007-07-11 宝山钢铁股份有限公司 Chromium free refractory material for RH vacuum furnace lining
CN101519309B (en) * 2008-02-27 2012-01-11 宝山钢铁股份有限公司 Zirconium spinel carbon based slide gate nozzle brick
CN101580381A (en) * 2009-06-22 2009-11-18 河北理工大学 Magnesium aluminate spinel- zirconium oxide-titanium oxide composite material and preparation method thereof
CN101580402A (en) * 2009-06-22 2009-11-18 河北理工大学 Magnesia alumina spinel-zirconia-ferric oxide composite material and preparation method thereof
CN101786889B (en) * 2009-12-24 2012-07-18 上海宝威陶瓷新材料有限公司 Zirconia/spinel nozzle brick
CN102249718A (en) * 2011-06-10 2011-11-23 鞍山浦项特种耐火材料有限公司 Aluminum magnesium carbon sliding plate brick for stopping slag at steel tapping hole of converter
CN102249718B (en) * 2011-06-10 2013-06-19 鞍山浦项特种耐火材料有限公司 Aluminum magnesium carbon sliding plate brick for stopping slag at steel tapping hole of converter
CN102992782A (en) * 2011-09-14 2013-03-27 中钢集团耐火材料有限公司 Refractory brick used for oxygen-fuel combustion glass kiln
CN102442829A (en) * 2011-09-28 2012-05-09 中钢集团耐火材料有限公司 Metal composite impermeable and unfired magnesia spinel brick for furnace liner of refining furnace and preparation method of magnesia spinel brick
CN102442829B (en) * 2011-09-28 2015-12-09 中钢集团耐火材料有限公司 The antiseepage of refining furnace furnace lining metal composite does not burn magnesia-spinel brick and preparation method thereof
CN102584293A (en) * 2012-02-24 2012-07-18 辽宁科技大学 Method for preparing magnesium-zirconium-carbon slide gate nozzle
CN102584293B (en) * 2012-02-24 2014-12-03 辽宁科技大学 Method for preparing magnesium-zirconium-carbon slide gate nozzle
CN102643099A (en) * 2012-05-15 2012-08-22 武汉科技大学 Magnesium-zirconium ring of slide plate for calcium-treated steel and preparation method thereof
CN102924095A (en) * 2012-08-08 2013-02-13 营口青花耐火材料股份有限公司 Magnesium-zirconium-aluminum bricks used in vacuum degassing furnace, and preparation method thereof

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Granted publication date: 20050706

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