JPH05269547A - Heat insulation material for molten metal and heat insulation method - Google Patents
Heat insulation material for molten metal and heat insulation methodInfo
- Publication number
- JPH05269547A JPH05269547A JP6735492A JP6735492A JPH05269547A JP H05269547 A JPH05269547 A JP H05269547A JP 6735492 A JP6735492 A JP 6735492A JP 6735492 A JP6735492 A JP 6735492A JP H05269547 A JPH05269547 A JP H05269547A
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- heat insulating
- insulating material
- heat
- heat insulation
- 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
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 28
- 239000002184 metal Substances 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 6
- 238000009413 insulation Methods 0.000 title claims description 5
- 239000012774 insulation material Substances 0.000 title 1
- 239000011810 insulating material Substances 0.000 claims abstract description 27
- 229910052902 vermiculite Inorganic materials 0.000 claims abstract description 12
- 239000010455 vermiculite Substances 0.000 claims abstract description 12
- 235000019354 vermiculite Nutrition 0.000 claims abstract description 12
- 229910004298 SiO 2 Inorganic materials 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 239000002245 particle Substances 0.000 claims abstract description 4
- 239000004575 stone Substances 0.000 claims description 2
- 238000003860 storage Methods 0.000 abstract description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 16
- 229910000831 Steel Inorganic materials 0.000 description 11
- 230000000694 effects Effects 0.000 description 11
- 239000010959 steel Substances 0.000 description 9
- 239000000395 magnesium oxide Substances 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 7
- 239000008187 granular material Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000002893 slag Substances 0.000 description 5
- 238000010304 firing Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000009749 continuous casting Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 241000935974 Paralichthys dentatus Species 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910052626 biotite Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000010438 granite Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000005332 obsidian Substances 0.000 description 1
- 229910052611 pyroxene Inorganic materials 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Continuous Casting (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
(57)【要約】
【目的】 断熱保温性が高く、添加時の分散性が良く、
しかも保管にも便利な溶融金属用保温材及びこれを用い
た保温方法を見出す。
【構成】 溶融金属用保温材として、バーミキュライト
原石を粒径１〜６ｍｍにサイジングし、組成中、ＭｇＯ
が５〜４０重量％で且つＳｉＯ2 が２５重量％以上のも
のを調製する。これを溶融金属に添加することによっ
て、溶融金属からの熱で保温材が約７倍に剥離膨張し、
溶融金属表面に短時間に断熱保温層を形成する。
(57) [Summary] [Purpose] Adiabatic heat retention is high, dispersibility when added is good,
Moreover, a heat insulating material for molten metal which is convenient for storage and a heat insulating method using the same are found. [Composition] As a heat insulating material for molten metal, rough vermiculite is sized to have a particle size of 1 to 6 mm, and MgO
Of 5 to 40% by weight and SiO 2 of 25% by weight or more are prepared. By adding this to the molten metal, the heat insulating material peels and expands about 7 times by the heat from the molten metal,
An adiabatic heat insulating layer is formed on the surface of molten metal in a short time.
Description
【０００１】[0001]
【産業上の利用分野】本発明は、溶融金属表面に添加し
て溶融金属の温度低下を防止する保温材及び保温方法に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat insulating material and a heat insulating method which are added to the surface of a molten metal to prevent the temperature of the molten metal from lowering.
【０００２】[0002]
【従来の技術】溶鋼等の連続鋳造に用いる取鍋、タンデ
ィッシュ等は、溶鋼の搬送、貯留用として用いられるだ
けでなく、この取鍋、タンディッシュ内で溶鋼の二次精
錬、成分調整、介在物の除去等も行なわれている。かか
る処理時において特に重要なのは、取鍋を含めたタンデ
ィッシュ内での溶鋼の温度降下を極めて小さく抑制する
ことにより、所定の温度範囲での注湯を確保することで
ある。このように溶鋼の二次精錬、成分調整、介在物の
除去等を図りつつ、所定の温度範囲での注湯を確保する
ために、取鍋あるいはタンディッシュの表面上に、例え
ば特開昭５４−５０４０４号公報に開示されたように、
板状保持材を添加するか、鉱物の中空顆粒体に難溶融性
の耐火物、たとえばＭｇＯをコーティングした保温材を
添加することが提案されている。2. Description of the Related Art Ladles, tundishes, etc. used for continuous casting of molten steel are used not only for transporting and storing molten steel, but also for secondary refining of molten steel, component adjustment, etc. in this ladle, tundish. Inclusions are also removed. What is particularly important at the time of such treatment is to suppress the temperature drop of the molten steel in the tundish including the ladle to be extremely small, thereby ensuring pouring in a predetermined temperature range. In order to ensure the pouring in a predetermined temperature range while carrying out the secondary refining of molten steel, the adjustment of components, the removal of inclusions, etc., for example, Japanese Patent Laid-Open No. As disclosed in Japanese Patent Publication No. -50404,
It has been proposed to add a plate-shaped holding material or a heat-retaining material obtained by coating a refractory material having a low melting property, such as MgO, on hollow mineral granules.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、前記板
状保温材はアルカリ金属もしくはアルカリ土類金属に若
干のカーボンを配合しているため早期に燃焼消失、ある
いは高温スラグと反応して溶解する。このため断熱保温
性が大幅に低下するとともに、配合されたカーボンが板
状保温材から溶出し溶鋼中の炭素がピックアップする。
一方ＭｇＯをコーティングした中空顆粒体は、黒曜石あ
るいはバーミキュライト（蛭石）等の鉱物を焼成し中空
顆粒体を形成する工程と、さらにこの焼成物にコーティ
ングする工程が必要で、製造工程が煩雑となりコストが
高い。However, since the plate-shaped heat insulating material contains a small amount of carbon in an alkali metal or an alkaline earth metal, it burns out early or reacts with the high temperature slag to dissolve. For this reason, the heat insulating and heat retaining properties are significantly lowered, and the compounded carbon is eluted from the plate-shaped heat retaining material and the carbon in the molten steel is picked up.
On the other hand, a hollow granule coated with MgO requires a step of firing a mineral such as obsidian or vermiculite to form a hollow granule, and a step of coating the fired product, which complicates the production process and reduces the cost. Is high.
【０００４】その他の保温材として、保温効果にすぐれ
た焼きモミが使用されているが、これはカーボンを含有
しているため、上記板状保温材同様早期の燃焼消失或い
は炭素のピックアップ等の問題がある。さらに嵩比重が
小さいため、熱風の上昇流によって添加時に飛散し溶鋼
表面に均一に分散させることができない。また粉塵発生
による環境上の問題、広い保管場所が必要である等の問
題もある。[0004] As another heat insulating material, a baked fir having an excellent heat insulating effect is used. However, since it contains carbon, there is a problem such as early disappearance of combustion or carbon pickup as in the plate heat insulating material. There is. Further, since the bulk specific gravity is small, it is scattered by the upward flow of hot air during addition and cannot be uniformly dispersed on the surface of the molten steel. There are also problems such as environmental problems due to dust generation and the need for a large storage space.
【０００５】本発明が解決すべき課題は、断熱保温性が
高く、添加時の分散性が良く、しかも保管にも便利な溶
融金属用保温材及びこれを用いた保温方法を見出すこと
にある。The problem to be solved by the present invention is to find a heat insulating material for molten metal and a heat insulating method using the same, which has high adiabatic heat insulating property, good dispersibility when added, and convenient for storage.
【０００６】[0006]
【課題を解決するための手段】本発明者は、かかる保温
材について長年研究する中で、焼成し中空顆粒状にして
用いられていた従来のバーミキュライトの保温材を、今
までに無い全く新しい発想により、事前に焼成すること
なく原石のまま使用し、溶融金属の熱を利用することを
思いたち本発明を完成するに至ったものである。Means for Solving the Problems The present inventor, while studying such heat insulating material for many years, has a completely new idea to the conventional heat insulating material of vermiculite, which has been used in the form of hollow granules. As a result, the present invention has been completed with the intention of using the raw ore as it is without firing it in advance and utilizing the heat of the molten metal.
【０００７】すなわち、本発明の溶融金属用保温材は、
バーミキュライト原石を粒径１〜６ｍｍにサイジングし
たものを保温材として用いることによって上記課題を解
決したものである。バーミキュライトは蛭石とも言わ
れ、加熱によって剥離する雲母質鉱物であり、マグネシ
アに富む輝岩が熱水の作用で加水雲母となったもの、及
び花崗岩が長年月の間に風化して黒雲母等が分解したも
のも含む。このバーミキュライトは６００〜１０００°
Ｃに加熱すると結晶水が脱出して剥離膨張し、その際密
着していた多くの雲母の層が剥離してアコーデオン状に
膨張して容積を増し、銀色または金色の光沢を帯びた軽
量の物質となる。That is, the heat insulating material for molten metal of the present invention is
This problem is solved by using a vermiculite raw stone sized to a particle size of 1 to 6 mm as a heat insulating material. Vermiculite, which is also called fluke, is a micaceous mineral that is exfoliated by heating. Magnesia-rich pyroxene becomes hydromica by the action of hot water, and granite weathered over many years and biotite, etc. Including those decomposed. This vermiculite is 600-1000 °
When heated to C, water of crystallization escapes and exfoliates and expands. At that time, many layers of mica that adheres to each other exfoliate and expand in an accordion-like state to increase the volume, and a light substance with a silver or gold luster. Becomes
【０００８】ここで、粒径を１ｍｍ未満にすると、熱風
の上昇流による飛散が多くなって溶融金属表面への均一
な分散が充分に確保できず、また６ｍｍを超えると、一
般に断熱保温層として必要な４０〜５０ｍｍの層内にお
ける断熱材の充填率が大きくなりすぎ、断熱保温に必要
な空気層の形成が困難となる。サイジング方法として
は、バーミキュライト原石を篩にかけるか、または同原
石を粉砕した後篩にかけることによって調整することが
できる。Here, if the particle size is less than 1 mm, the scattering due to the upward flow of hot air is so large that uniform dispersion on the surface of the molten metal cannot be sufficiently ensured, and if it exceeds 6 mm, it is generally used as a heat insulation layer. The filling rate of the heat insulating material in the necessary layer of 40 to 50 mm becomes too large, which makes it difficult to form the air layer necessary for heat insulation. The sizing method can be adjusted by sieving the rough vermiculite or crushing the rough and then sieving.
【０００９】また、上記保温材として、バーミキュライ
ト原石の組成中、ＭｇＯが５〜４０重量％で、且つＳｉ
Ｏ2 が２５重量％以上のものを選択的に使用することが
できる。ここで、保温材は溶融スラグと適度に反応し溶
融性を保つことが重要であり、ＭｇＯが５％未満の場
合、相対的にＳｉＯ2 含有量が増えて低融点化し、溶融
し焼結層を形成するため、断熱保温層の形成が不十分と
なり保温効果が低下する。また４０％を超えると相対的
にＳｉＯ2 の含有量が減り、溶融スラグと浸潤して溶融
スラグと焼結し、保温効果が低下するとともに、操業ト
ラブルの原因となる。このように、保温性を低下させ
ず、しかも操業トラブルの発生を抑えるために、上記組
成が望ましい。As the heat insulating material, MgO is contained in the composition of the rough vermiculite in an amount of 5 to 40% by weight, and Si
O 2 can be used selectively more than 25 wt%. Here, it is important that the heat insulating material appropriately reacts with the molten slag to maintain the meltability, and when MgO is less than 5%, the SiO 2 content is relatively increased to lower the melting point, and the molten layer is melted. Therefore, the heat insulating and heat insulating layer is not sufficiently formed, and the heat insulating effect is reduced. On the other hand, if it exceeds 40%, the content of SiO 2 is relatively reduced, and the molten slag is infiltrated and sintered with the molten slag, which lowers the heat retention effect and causes operational troubles. As described above, the above composition is desirable in order not to lower the heat retention property and to suppress the occurrence of operation trouble.
【００１０】また、バーミキュライト原石からなる上記
保温材は、溶融金属表面に均等に分散させ、溶融金属の
熱により保温材を受熱膨張させ、溶融金属表面に断熱保
温層を形成させることによって、効果的に保温効果を発
揮させることができる。Further, the heat insulating material composed of vermiculite rough is evenly dispersed on the surface of the molten metal, and the heat insulating material is thermally expanded by the heat of the molten metal to form an adiabatic heat insulating layer on the surface of the molten metal, which is effective. The heat retention effect can be exhibited.
【００１１】[0011]
【作用】本発明のバーミキュライト原石をサイジングし
た溶融金属用保温材は、溶融金属からの熱によって、使
用時に約７倍に剥離膨張して短時間に断熱保温層を形成
する。このため、事前の焼成工程が不要となるばかりで
なく、添加時においては嵩比重が約０．７６と従来の焼
モミの嵩比重の約７倍と大きいため、熱風上昇流による
飛散がない。また、ＭｇＯ及びＳｉＯ2 の含有量を調整
することによって溶融スラグとの焼結を効果的に防止す
ることができる。The heat insulating material for molten metal, which is obtained by sizing the rough vermiculite ore according to the present invention, peels and expands by about 7 times during use by heat from the molten metal to form an adiabatic heat insulating layer in a short time. For this reason, not only is a preliminary firing step unnecessary, but since the bulk specific gravity at the time of addition is as large as about 0.76, which is about 7 times the bulk specific gravity of conventional grilled fir, there is no scattering due to the rising flow of hot air. Also, by adjusting the contents of MgO and SiO 2 , it is possible to effectively prevent sintering with the molten slag.
【００１２】[0012]
【実施例】実施例として連続鋳造の６０Ｔタンディッシ
ュに本発明の保温材〔１〕，〔２〕，〔３〕を用いた場
合を、焼きモミ〔Ａ〕、Ｍｇ（ＯＨ）2 に金属アルミニ
ウムを添加し、水素ガスを発生させて気泡を形成した発
泡ＭｇＯ〔Ｂ〕、及び保温材無し〔Ｃ〕とを比較した。
表１は実施例〔１〕，〔２〕，〔３〕及び比較例
〔Ａ〕，〔Ｂ〕のそれぞれの配合組成を示す。EXAMPLES As an example, when the heat insulating materials [1], [2] and [3] of the present invention were used in a 60T tundish of continuous casting, baked aluminum [A], Mg (OH) 2 and metallic aluminum were used. Was added, and a foamed MgO [B] in which hydrogen gas was generated to form bubbles and no heat insulating material [C] were compared.
Table 1 shows the compounding compositions of Examples [1], [2] and [3] and Comparative Examples [A] and [B].
【００１３】[0013]
【表１】 添加条件としてはそれぞれの保温材を鋳造初期に２００
ｋｇを一括投入し、次チャージから各チャージ毎に５０
ｋｇを添加して平均層厚を４０ｍｍとして４チャージ鋳
造した。[Table 1] As for the addition conditions, each heat insulating material is set to 200 at the beginning of casting.
50 kg for each charge from the next charge
4 charge casting was performed by adding kg to make the average layer thickness 40 mm.
【００１４】本実施例品は溶融金属への添加に際し、熱
風の上昇流による飛散もなく、また添加によって短時間
に剥離膨張し、溶融金属表面に均一に分散して断熱保温
層を形成した。The product of this example did not scatter due to the upward flow of hot air when added to the molten metal, and the product was exfoliated and expanded in a short time by the addition, and was uniformly dispersed on the surface of the molten metal to form an adiabatic heat insulating layer.
【００１５】結果は、図１に示すように、本実施例品は
保温材無し〔Ｃ〕を基準とした場合、３５°Ｃ／２０分
もの保温効果が確認された。また従来使用されている保
温材である比較例〔Ａ〕及び〔Ｂ〕よりも保温効果が優
れたものであった。As a result, as shown in FIG. 1, it was confirmed that the product of this example had a heat retaining effect of 35 ° C./20 minutes, based on the case without a heat retaining material [C]. Further, the heat retaining effect was superior to that of the comparative examples [A] and [B], which are conventionally used heat retaining materials.
【００１６】[0016]
【発明の効果】本発明によって以下の効果を奏すること
ができる。According to the present invention, the following effects can be obtained.
【００１７】（１）中空顆粒状とするための事前の焼成
工程が不要となるため製造コストが低減できる。(1) The manufacturing cost can be reduced because a preliminary firing step for forming hollow granules is unnecessary.
【００１８】（２）保温効果に優れながらカーボンを含
有していないため、炭素のピックアップの問題がない。(2) Since it does not contain carbon while having an excellent heat retaining effect, there is no problem of carbon pickup.
【００１９】（３）溶融金属からの熱によって膨張させ
て使用するものであるため、同様の保温効果を有する焼
きモミと比べ約１／７の保管場所で済む。(3) Since it is used after being expanded by the heat from the molten metal, it can be stored in about 1/7 of the storage space as compared with a baked fir having the same heat retaining effect.
【００２０】（４）ＭｇＯ及びＳｉＯ2 の含有量を調整
することによって、保温効果に優れ且つ操業トラブルの
無いものとすることができる。(4) By adjusting the contents of MgO and SiO 2 , it is possible to obtain an excellent heat retention effect and no operational trouble.
【００２１】（５）添加時においては嵩比重が焼モミに
比べ約７倍と大きいため、熱風上昇流による飛散がな
く、粉塵発生等の環境問題がない。(5) At the time of addition, since the bulk specific gravity is about 7 times as large as that of the burned fir, there is no scattering due to the rising flow of hot air, and there is no environmental problem such as dust generation.
【図１】本発明の保温材と従来の保温材との保温効果を
示す図である。FIG. 1 is a diagram showing a heat insulating effect of a heat insulating material of the present invention and a conventional heat insulating material.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 栗栖 誠一 福岡県北九州市戸畑区飛幡町１番１号 新 日本製鐵株式会社八幡製鐵所内 (72)発明者 高崎 義則 福岡県北九州市戸畑区飛幡町１番１号 新 日本製鐵株式会社八幡製鐵所内 (72)発明者 伊藤 修 福岡県北九州市戸畑区飛幡町１番１号 新 日本製鐵株式会社八幡製鐵所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Seiichi Kurisu 1-1, Tobata-cho, Tobata-ku, Kitakyushu, Kitakyushu, Japan Inside the Hachiman Steel Works, Nippon Steel Co., Ltd. No. 1-1 Machi New Steel Works, Yawata Works (72) Inventor Osamu Ito 1-1 Hibahata-cho, Tobata-ku, Kitakyushu City, Fukuoka Prefecture Inside the Yawata Works, Nippon Steel Co., Ltd.
Claims (3)
にサイジングしてなる溶融金属用保温材。1. A rough vermiculite stone having a particle size of 1 to 6 mm
A heat insulating material for molten metal that is sized to.
が５〜４０重量％で且つＳｉＯ2 が２５重量％以上であ
ることを特徴とする請求項１記載の溶融金属用保温材。2. MgO in the composition of vermiculite rough
Is 5 to 40% by weight and SiO 2 is 25% by weight or more. The heat insulating material for a molten metal according to claim 1, wherein
材を溶融金属表面に添加し、同溶融金属の熱により前記
溶融金属用保温材を受熱膨張させ、前記溶融金属表面に
断熱保温層を形成する溶融金属の保温方法。3. The heat insulating material for molten metal according to claim 1 or 2 is added to the surface of the molten metal, the heat insulating material for the molten metal is thermally expanded by the heat of the molten metal, and the heat insulation of the surface of the molten metal is performed. Insulation method for molten metal forming a layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6735492A JP2826012B2 (en) | 1992-03-25 | 1992-03-25 | Heat insulation material for molten metal and heat insulation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6735492A JP2826012B2 (en) | 1992-03-25 | 1992-03-25 | Heat insulation material for molten metal and heat insulation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05269547A true JPH05269547A (en) | 1993-10-19 |
| JP2826012B2 JP2826012B2 (en) | 1998-11-18 |
Family
ID=13342602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6735492A Expired - Lifetime JP2826012B2 (en) | 1992-03-25 | 1992-03-25 | Heat insulation material for molten metal and heat insulation method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2826012B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100436506B1 (en) * | 1997-04-30 | 2004-08-18 | 주식회사 포스코 | Ultra low carbon special molten steel ladle insulation insulation |
| JP2009248094A (en) * | 2008-04-01 | 2009-10-29 | Nippon Steel Corp | Heat insulation method of molten steel |
| CN103586426A (en) * | 2013-10-30 | 2014-02-19 | 吴江市液铸液压件铸造有限公司 | Thermal-insulation cover agent and preparation method thereof |
| CN108580821A (en) * | 2018-04-02 | 2018-09-28 | 首臣（上海）新能源科技有限公司 | A kind of calcium and magnesium tundish thermal-insulating covering agent and preparation method thereof |
-
1992
- 1992-03-25 JP JP6735492A patent/JP2826012B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100436506B1 (en) * | 1997-04-30 | 2004-08-18 | 주식회사 포스코 | Ultra low carbon special molten steel ladle insulation insulation |
| JP2009248094A (en) * | 2008-04-01 | 2009-10-29 | Nippon Steel Corp | Heat insulation method of molten steel |
| CN103586426A (en) * | 2013-10-30 | 2014-02-19 | 吴江市液铸液压件铸造有限公司 | Thermal-insulation cover agent and preparation method thereof |
| CN108580821A (en) * | 2018-04-02 | 2018-09-28 | 首臣（上海）新能源科技有限公司 | A kind of calcium and magnesium tundish thermal-insulating covering agent and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2826012B2 (en) | 1998-11-18 |
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