JPH03118953A - Plate brick for sliding nozzle - Google Patents
Plate brick for sliding nozzleInfo
- Publication number
- JPH03118953A JPH03118953A JP1255404A JP25540489A JPH03118953A JP H03118953 A JPH03118953 A JP H03118953A JP 1255404 A JP1255404 A JP 1255404A JP 25540489 A JP25540489 A JP 25540489A JP H03118953 A JPH03118953 A JP H03118953A
- Authority
- JP
- Japan
- Prior art keywords
- binder
- layer
- resistance
- silicone resin
- kneaded 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.)
- Pending
Links
- 239000011449 brick Substances 0.000 title claims abstract description 18
- 239000011230 binding agent Substances 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 18
- 229920002050 silicone resin Polymers 0.000 claims abstract description 15
- 239000005011 phenolic resin Substances 0.000 claims abstract description 12
- 230000009970 fire resistant effect Effects 0.000 claims description 5
- 239000011819 refractory material Substances 0.000 abstract description 7
- 238000004901 spalling Methods 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 abstract description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 3
- 230000001590 oxidative effect Effects 0.000 abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 2
- 239000004927 clay Substances 0.000 abstract description 2
- 238000002156 mixing Methods 0.000 abstract description 2
- 230000002411 adverse Effects 0.000 abstract 1
- 229910052570 clay Inorganic materials 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 description 8
- 238000007254 oxidation reaction Methods 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 4
- 229920001568 phenolic resin Polymers 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229920001187 thermosetting polymer Polymers 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は溶鋼の連続鋳造設備において、溶鋼流量制御に
用いられるスライディングノズル用プレートれんかに関
するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a plate brick for a sliding nozzle used for controlling the flow rate of molten steel in continuous molten steel casting equipment.
スライディングノズル（以下ＳＮと略す）は、溶融金属
流量のコントロールに有用な手段であり、特に鉄鋼業に
おいては溶銑および溶鋼の流量コントロールに広く使用
され、最近その使用条件はますます過酷になってきてい
る。ＳＮ装置は大きく分けて上部ノズルと、固定および
摺動プレートから成るプレートれんがと、下部ノズルと
の３つの部分で構成されており、その中でも特にプレー
トれんがは溶融金属流量のコントロールを司るために最
も高度な機能が要求される部位である。プレートれんが
は溶融金属流による急激な熱衝撃と摩耗とによって物理
的かつ化学的な侵食作用を受けるので、耐スポーリング
性と耐食性とに優れることが要求される。さらに、安定
した高耐用性を得るためには十分な機械的強度および耐
酸化性に優れることも要求される。そこで、例えば特開
平１−１０３９５２号公報において記載されているフェ
ノール樹脂等の熱硬化性樹脂と珪素樹脂とを併用したＳ
Ｎプレートれんがを以て、十分な機械的強度と耐酸化性
とを具備したＳＮプレートれんがが開示されている。Sliding nozzles (hereinafter abbreviated as SN) are a useful means for controlling the flow rate of molten metal, and are widely used in the steel industry in particular to control the flow rate of hot metal and molten steel.Recently, the conditions for their use have become increasingly severe. There is. The SN device is roughly divided into three parts: an upper nozzle, a plate brick consisting of fixed and sliding plates, and a lower nozzle. Among these, the plate brick is the most important because it controls the flow rate of molten metal. This is a part that requires advanced functionality. Plate bricks are subject to physical and chemical erosion due to rapid thermal shock and abrasion caused by molten metal flow, so they are required to have excellent spalling resistance and corrosion resistance. Furthermore, in order to obtain stable and high durability, it is also required to have sufficient mechanical strength and excellent oxidation resistance. Therefore, for example, S
Among the N-plate bricks, SN-plate bricks with sufficient mechanical strength and oxidation resistance are disclosed.
ところが、フェノール樹脂を配合した耐火物は３００℃
以上の温度では酸化による強度の低下が著しく、一方珪
素樹脂を配合した耐火物は熱硬化性樹脂の中では耐酸化
性に優れるが、珪素樹脂の価格は高価であるためその使
用量が限られるという問題があった。However, refractories containing phenolic resin can withstand temperatures of 300°C.
At temperatures above this, the strength decreases significantly due to oxidation.On the other hand, refractories containing silicone resin have excellent oxidation resistance among thermosetting resins, but the high price of silicone resin limits its usage. There was a problem.
ＳＮ用耐火物の最近の動向として、耐火物のコスト低減
も重要な課題であり、珪素樹脂を多量に配合することは
製造コストがかさみ、好ましくない。As a recent trend in refractories for SN, reducing the cost of refractories is also an important issue, and blending a large amount of silicone resin increases manufacturing costs, which is not preferable.
上記従来の事情に鑑み、本発明は耐スポーリング性、耐
食性、耐酸化性に優れ、十分な機械的強度をも併せ持つ
ＳＮプレートれんがを提供し、さらに製造コストの低減
をも実現することを目的とする。In view of the above-mentioned conventional circumstances, an object of the present invention is to provide an SN plate brick that has excellent spalling resistance, corrosion resistance, oxidation resistance, and sufficient mechanical strength, and also achieves a reduction in manufacturing costs. shall be.
上記の目的を達成するために、本発明は耐火性材料に対
し、摺動面側に珪素樹脂を結合剤として用いた層と、背
面側にフェノール樹脂を結合剤として用いた層とよりな
ることを特徴とするスライディングノズル用プレートれ
んがを提供するものである。In order to achieve the above object, the present invention provides a fire-resistant material comprising a layer using a silicone resin as a binder on the sliding surface side and a layer using a phenol resin as a binder on the back side. The present invention provides a plate brick for a sliding nozzle, which is characterized by the following.
本発明者らはＳＮプレートれんかについて鋭意研究した
結果、使用中の酸化による損傷が直接溶鋼と接触する摺
動面から徐々にプレートれんが内部に拡がって進行する
という知見を得た。そこでＳＮプレートれんがの摺動面
側だけを珪素樹脂を結合剤とする層で構成することによ
り珪素樹脂の総使用量を抑えて経済的にプレートれんが
の摺動面に耐酸化性を付与することが実現できる。As a result of intensive research on SN plate bricks, the present inventors have found that damage due to oxidation during use gradually spreads and progresses from the sliding surface that comes into direct contact with molten steel into the inside of the plate brick. Therefore, by constructing only the sliding surface side of the SN plate brick with a layer using silicone resin as a binder, the total amount of silicone resin used can be suppressed and oxidation resistance can be economically imparted to the sliding surface of the plate brick. can be realized.
本発明に使用する耐火性材料は、アルミナ、シリカ、ア
ルミノシリケート、マグネシア、スピネル、炭化物、窒
化物、炭素質材料、アルミニウム、シリコン、マグネシ
ウム等の金属あるいは合金等の中から任意のものが使用
できる。As the refractory material used in the present invention, any material can be used from among alumina, silica, aluminosilicate, magnesia, spinel, carbide, nitride, carbonaceous materials, metals or alloys such as aluminum, silicon, and magnesium. .
背面側の第一層は上記耐火性材料の１種もしくは２種以
上を粒度調整して配合したちの１００重量部に対し、熱
硬化性フェノール樹脂を１〜１５重量部加え、混練する
。フェノール樹脂の添加量が１重量部以下では成形体の
強度が十分ではなく、また、１５重量部以上では成形体
にラミネーションの発生が起こり、成形ができない。For the first layer on the back side, 1 to 15 parts by weight of a thermosetting phenol resin is added to 100 parts by weight of one or more of the above fire-resistant materials with particle size adjustment and kneaded. If the amount of the phenol resin added is less than 1 part by weight, the strength of the molded product will not be sufficient, and if it is more than 15 parts by weight, lamination will occur in the molded product and molding will not be possible.
摺動面側の第二層は上記耐火性材料の１種もしくは２種
以上を粒度調整して配合したちの１００重量部に対し、
熱硬化性珪素樹脂を１〜１０重量部加え、混練したもの
である。珪素樹脂の添加量が１重量部未満では酸化防止
の効果が十分ではなく、また１０重量部を超えると経済
的に不利である。The second layer on the sliding surface side is made of one or more of the fire-resistant materials mentioned above, with particle size adjusted and blended with 100 parts by weight.
1 to 10 parts by weight of a thermosetting silicone resin is added and kneaded. If the amount of silicone resin added is less than 1 part by weight, the antioxidant effect will not be sufficient, and if it exceeds 10 parts by weight, it will be economically disadvantageous.
所定の金型内にフェノール樹脂を結合剤とした混練物を
充填し、さらにその上部に珪素樹脂を結合剤とした混練
物を充填し、加圧成形した後に１０００℃以下で加熱処
理する↓加熱処理は通常１００〜３００℃で行われるが
、れんがの強度が必要な場合は低融点金属を溶融あるい
は他の材料と反応させるために５００〜１０００℃の温
度で非酸化雰囲気にて加熱処理を行う。処理温度は１０
００℃以下が好ましく、１０００℃以上にするとＳＮプ
レートの耐スポーリング性の低下を招く。A kneaded material using a phenolic resin as a binder is filled into a specified mold, and the kneaded material using a silicone resin as a binder is then filled in the upper part of the mold, followed by pressure molding and then heat-treated at 1000℃ or less↓Heating The treatment is usually carried out at 100-300℃, but if the strength of the brick is required, heat treatment is performed at a temperature of 500-1000℃ in a non-oxidizing atmosphere to melt the low melting point metal or react with other materials. . The processing temperature is 10
The temperature is preferably below 00°C, and if it is above 1000°C, the spalling resistance of the SN plate will deteriorate.
本発明を実施例により具体的に説明する。 The present invention will be specifically explained with reference to Examples.
焼結アルミナ９５％、粘土３％、カーボン粉末２％を粒
度配合し、フェノール樹脂５％を結合剤として用い混練
した。金型内に混練物を充填し、その上から上記と同配
合の耐火性材料に珪素樹脂５％を結合剤として用いた混
練物を充填し、成形した後、１８０℃の温度で加熱処理
を行った。A particle size blend of 95% sintered alumina, 3% clay, and 2% carbon powder was kneaded using 5% phenolic resin as a binder. The kneaded material is filled into the mold, and then a kneaded material made of a fire-resistant material with the same composition as above and 5% silicone resin as a binder is filled into the mold, and after molding, heat treatment is performed at a temperature of 180 ° C. went.
第１図をもとに、本発明品を説明する。第一層１はフェ
ノール樹脂を結合剤として用いた混練物で構成された層
で、第二層２は珪素樹脂を結合剤として用いた混練物で
構成された層である。第一層１および第二Ｎ２の厚みは
それぞれ２５ｍｍおよび５１層とした。The product of the present invention will be explained based on FIG. The first layer 1 is a layer made of a kneaded material using a phenol resin as a binder, and the second layer 2 is a layer made of a kneaded material using a silicone resin as a binder. The thicknesses of the first layer 1 and the second N2 were 25 mm and 51 layers, respectively.
本発明品を従来のフェノール樹脂のみを結合剤として用
いたＡ Ｉ！ ２０３ＣＭ Ｓ Ｎ ７” Ｌｉ −ト
’ｃ 比較材として連続鋳造設備において、溶鋼流量制
御ストッパーとして用いたところ、従来品の摺動面が脱
炭し、いわゆる面荒れを起こし５ｃｈ使用後に使用不能
になったのに対し、本発明品は面荒れ、内孔のエツジ損
傷、亀裂が軽微でさらに５ｃｈ、合計Ｉ Ｑｃｈの使用
が可能であった。The product of the present invention was applied to AI! using only conventional phenolic resin as a binder. 203CM S N 7"Li-to'c When used as a molten steel flow rate control stopper in a continuous casting facility as a comparative material, the sliding surface of the conventional product decarburized, causing so-called surface roughness and became unusable after 5 channels were used. In contrast, the product of the present invention had only minor surface roughness, inner hole edge damage, and cracks, and was able to use an additional 5 channels, a total of IQ channels.
本発明にかかるＳＮプレートれんがは摺動性、耐食性、
耐スポーリング性に悪影響を及ぼすことな（、しかも、
経済的に摺動面に耐酸化性を付与することが可能となり
、それにより耐用性の向上を図ることができる。The SN plate brick according to the present invention has sliding properties, corrosion resistance,
It does not have a negative effect on spalling resistance (and,
It becomes possible to economically impart oxidation resistance to the sliding surface, thereby improving durability.
第１図は本発明の実施例を示す概略断面図である。 本発明の実施例を示す概略断面図 第 １ 図 FIG. 1 is a schematic sectional view showing an embodiment of the present invention. A schematic sectional view showing an embodiment of the present invention Figure 1
Claims (1)
として用いた層と、背面側にフェノール樹脂を結合剤と
して用いた層とよりなることを特徴とするスライディン
グノズル用プレートれんが。(1) A plate brick for a sliding nozzle, which is made of a fire-resistant material and consists of a layer using silicone resin as a binder on the sliding surface side and a layer using phenol resin as a binder on the back side. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1255404A JPH03118953A (en) | 1989-09-29 | 1989-09-29 | Plate brick for sliding nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1255404A JPH03118953A (en) | 1989-09-29 | 1989-09-29 | Plate brick for sliding nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03118953A true JPH03118953A (en) | 1991-05-21 |
Family
ID=17278297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1255404A Pending JPH03118953A (en) | 1989-09-29 | 1989-09-29 | Plate brick for sliding nozzle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03118953A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006002727A1 (en) * | 2004-06-19 | 2006-01-12 | Refractory Intellectual Property Gmbh & Co. Kg | Ceramic shaped body |
| KR100775084B1 (en) * | 2006-12-20 | 2007-11-08 | 주식회사 포스코 | Tundish for insulator |
-
1989
- 1989-09-29 JP JP1255404A patent/JPH03118953A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006002727A1 (en) * | 2004-06-19 | 2006-01-12 | Refractory Intellectual Property Gmbh & Co. Kg | Ceramic shaped body |
| KR100775084B1 (en) * | 2006-12-20 | 2007-11-08 | 주식회사 포스코 | Tundish for insulator |
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