WO2014006990A1 - Molten metal vessel - Google Patents

Molten metal vessel Download PDF

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Publication number
WO2014006990A1
WO2014006990A1 PCT/JP2013/063921 JP2013063921W WO2014006990A1 WO 2014006990 A1 WO2014006990 A1 WO 2014006990A1 JP 2013063921 W JP2013063921 W JP 2013063921W WO 2014006990 A1 WO2014006990 A1 WO 2014006990A1
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Prior art keywords
molten metal
dry material
hollow
lining
segment member
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PCT/JP2013/063921
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French (fr)
Japanese (ja)
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一磨 西内
寿治 木下
伊藤 貴志
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日本碍子株式会社
エヌジーケイ・アドレック株式会社
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Priority to JP2013540142A priority Critical patent/JP5764829B2/en
Publication of WO2014006990A1 publication Critical patent/WO2014006990A1/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00Casings; Linings; Walls; Roofs
    • F27D1/0003Linings or walls
    • F27D1/0006Linings or walls formed from bricks or layers with a particular composition or specific characteristics
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/02Linings

Definitions

  • the present invention mainly relates to a molten metal container suitable for conveying a molten metal.
  • Patent Document 1 a castable refractory poured into the inner surface of a heat insulating material has been widely used (for example, Patent Document 1).
  • the weight of the castable refractory is not preferable because it is required to reduce the weight of the container from the viewpoint of transport and handling.
  • An object of the present invention is to provide a molten metal container that solves the above-described problems, realizes weight reduction of the container, and can maintain heat retention even when the lining member is damaged.
  • the molten metal container of the present invention made to solve the above problems is a molten metal container in which a hollow segment member is lined on the inner surface of the container, and a dry powder material is provided on the back surface of the hollow segment member.
  • dry material means a refractory powder that can be melted by receiving molten metal
  • dry material lining means filling the refractory powder while hitting it. This means that a fireproof layer is formed.
  • the segment member having a hollow structure is constituted by a wall surface having a thickness of 1.5 mm or more.
  • the difference in thermal expansion coefficient between the segment member and the dry material is 4 ⁇ 10 ⁇ 6 or less.
  • the molten metal container according to the present invention achieves a lighter weight than a lining structure of castable refractories by lining a segment member having a hollow structure on the inner surface of the container. Furthermore, by lining a powder dry material on the back of the hollow segment member, the dry material is lined even if the lining structure made of the hollow segment member is damaged. Since the molten metal can be received and sintered in the layer, the phenomenon that the molten metal reaches the iron skin constituting the outermost layer of the container can be avoided.
  • the lining thickness of the hollow segment member is secured to 13 mm or more,
  • the molten metal container of this embodiment is a molten metal conveyance container used for conveying a molten metal.
  • the molten metal transport container 1 of this embodiment includes a steel iron skin 2, a heat insulating material 3 lined on the inner surface of the iron skin 2, and a powder lined on the inner surface of the heat insulating material.
  • the dry material 4 and the hollow structure segment member 5 lined on the inner surface side of the dry material 4, and the heat storage material 6 is further arranged inside the hollow structure segment member 5.
  • a normal castable 7 can be further lined inside the segment member 5 having a hollow structure.
  • the segment member 5 having a hollow structure is composed of a plate material having silicon carbide as a main component and a thickness of about 1.5 to 3 mm, and has a space 8 of 5 mm or more inside.
  • a heat storage material 6 is disposed inside the member 5.
  • the + heat storage material 6 (5 mm or more) needs to be secured at least 13 mm or more.
  • the joints between the segment members 5 are bonded with mortar.
  • 90% alumina mortar is used.
  • the powdery dry material 4 is a high alumina refractory (specific gravity after tap filling is about 3; here, tap filling means filling while tapping the powder) or high siliceous refractory. A thing (specific gravity after tap filling is about 2) can be used. From the viewpoint of weight reduction, a dry material of a high siliceous refractory having a small specific gravity is preferable, and from the viewpoint of extending the life, a high alumina refractory is preferable.
  • the molten metal is a normal alumina molten metal
  • a dry material of high siliceous refractory if a dry material of high siliceous refractory is used, the silica (SiO 2 ) of the dry material is reduced to aluminum and becomes silicon (Si) and melts into the molten aluminum.
  • silicon pickup it is not preferable, but in the case of a molten metal containing silicon, it can be suitably used.
  • the powdery dry material 4 is used by packing particles so as to be closely packed, and has various particle size distributions from coarse particles having a maximum particle size of 5 mm to fine powder particles. .
  • the heat insulating material 3 is wound around the inner surface of the iron skin 2, and then a hollow structure segment member 5 is circumferentially assembled at a predetermined height and is carried into a furnace.
  • a powdery dry material is packed between the heat insulating material and the hollow segment member 5 by close-packing, and then the hollow segment member 5 is assembled at a predetermined height around the circumference.
  • the work is carried into the furnace, and subsequently, the operation of packing the powdery dry material between the heat insulating material and the hollow segment member 5 by close packing is repeated.
  • the ratio B / A between the lining thickness (A) of the segment member 5 having a hollow structure and the lining thickness (B) of the dry material 4 is less than 9.0, and the lining of the segment member 5 having a hollow structure is provided.
  • the lining thickness (B) of the dry material 4 is extremely reduced, the molten metal is received by the lining layer of the dry material 4 and baked even if the lining structure composed of the segment members 5 having the hollow structure is damaged.
  • B / A 0.15 or more
  • the hollow segment member 5 is made of one or more materials selected from the group of alumina, silica, aluminum titanate, silicon nitride, cordierite, alumina, zirconia, sialon, and mullite in addition to silicon carbide. You can also. However, from the viewpoint of preventing molten metal from leaking, it is preferable that the difference in coefficient of thermal expansion between the segment member 5 and the dry material 4 is 4 ⁇ 10 ⁇ 6 or less.
  • Table 1 shows the results of examining the lining thickness of the segment member 5 having a hollow structure and the powdery dry material 4 in the lining configuration of FIG.
  • alumina (95%)” and “silica (98%)” mean the composition of the dry material.
  • Comparative Example 1 the lining thickness of the segment member having a hollow structure was not secured to 13 mm or more, and the segment member was deformed when the dry material was packed with the closest packing, so that the construction could not be performed. In Comparative Example 2, the dry material could not be constructed because the dry material was too thin. In Comparative Example 3, when the dry material was packed by the closest packing, the joining between the segment members having the hollow structure disposed therein was loosened.
  • the lining thickness (B) of the dry material is made extremely thin, even if the lining structure composed of the segment members having a hollow structure is damaged, the molten metal is received by the dry material lining layer and sintered.
  • B / A 0.15 or more.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Abstract

Provided is a molten metal vessel that is lightweight and is capable of maintaining heat retention even if a lining member is damaged. The inner surface of the molten metal vessel is lined with a hollow-structured segmented member. The rear surface of the hollow-structured segmented member is lined with a powdered dry material, and the lining thickness of the hollow-structured segmented member is maintained at not less than 13 mm. The hollow-structured segmented member and the dry material are lined such that the dry material lining thickness (B) / the hollow-structured lining thickness (A) ranges from 0.15 to 9.0.

Description

溶湯容器Molten metal container
 本発明は、主に、金属溶湯搬送に適した溶湯容器に関するものである。 The present invention mainly relates to a molten metal container suitable for conveying a molten metal.
 従来、金属溶湯用容器のライニング構造としては、断熱材の内面にキャスタブル耐火物を流し込み施工したものが広く採用されてきた(例えば、特許文献1)。 Conventionally, as a lining structure of a molten metal container, a castable refractory poured into the inner surface of a heat insulating material has been widely used (for example, Patent Document 1).
 しかし、金属溶湯用容器を搬送用容器としても兼用する場合、搬送やハンドリングの観点から容器の軽量化が求められるところ、キャスタブル耐火物は重量が大きく好ましくないという問題があった。 However, when the metal melt container is also used as a transport container, the weight of the castable refractory is not preferable because it is required to reduce the weight of the container from the viewpoint of transport and handling.
 また、使用中に内張り部材が損傷した場合、溶湯が容器の最外層を構成している鉄皮にまで達して、保温性が失われる問題があった。 Also, when the lining member is damaged during use, there is a problem that the molten metal reaches the iron skin constituting the outermost layer of the container and the heat retaining property is lost.
特開平7-126074号公報Japanese Patent Application Laid-Open No. 7-126074
 本発明の目的は前記の問題を解決し、容器の軽量化を実現するとともに、内張り部材が損傷した場合であっても、保温性を維持することができる溶湯容器を提供することである。 An object of the present invention is to provide a molten metal container that solves the above-described problems, realizes weight reduction of the container, and can maintain heat retention even when the lining member is damaged.
 上記課題を解決するためになされた本発明の溶湯容器は、容器内面に中空構造のセグメント部材をライニングした溶湯容器であって、該中空構造のセグメント部材の背面には、粉体の乾式材がライニングされ、中空構造のセグメント部材のライニング厚みを13mm以上確保した上で、該中空構造のセグメント部材と該乾式材を、乾式材のライニング厚み(B)/中空構造のライニング厚み(A)=0.15~9.0の範囲でライニングしたことを特徴とするものである。なお、本発明において「乾式材」とは、溶湯を受けて焼結させることができる耐火性の粉体を意味し、「乾式材のライニング」とは、前記耐火性の粉体を叩きながら充填して耐火層を形成することを意味する。 The molten metal container of the present invention made to solve the above problems is a molten metal container in which a hollow segment member is lined on the inner surface of the container, and a dry powder material is provided on the back surface of the hollow segment member. The lining thickness of the segment member having a hollow structure is ensured to be 13 mm or more, and the segment member having the hollow structure and the dry material are divided into the lining thickness of the dry material (B) / the lining thickness of the hollow structure (A) = 0. It is characterized by lining in the range of .15 to 9.0. In the present invention, “dry material” means a refractory powder that can be melted by receiving molten metal, and “dry material lining” means filling the refractory powder while hitting it. This means that a fireproof layer is formed.
 請求項2記載の発明は、請求項1記載の溶湯容器において、中空構造のセグメント部材は、肉厚が1.5mm以上の壁面から構成されることを特徴とするものである。 According to a second aspect of the present invention, in the molten metal container according to the first aspect, the segment member having a hollow structure is constituted by a wall surface having a thickness of 1.5 mm or more.
 請求項3記載の発明は、請求項1または2記載の溶湯容器において、該セグメント部材と乾式材との熱膨張係数の差が4×10-6以下であることを特徴とするものである。 According to a third aspect of the invention, in the molten metal container according to the first or second aspect, the difference in thermal expansion coefficient between the segment member and the dry material is 4 × 10 −6 or less.
 本発明に係る溶湯容器は、容器内面に中空構造のセグメント部材をライニングすることにより、キャスタブル耐火物のライニング構造に比べて、軽量化を実現している。更に、中空構造のセグメント部材の背面に、粉体の乾式材をライニングすることにより、中空構造のセグメント部材からなる内張り構造に損傷が生じた場合であっても、乾式材をライニングして形成した層で溶湯を受けて焼結させることができるため、溶湯が容器の最外層を構成している鉄皮にまで達する現象を回避することができる。 The molten metal container according to the present invention achieves a lighter weight than a lining structure of castable refractories by lining a segment member having a hollow structure on the inner surface of the container. Furthermore, by lining a powder dry material on the back of the hollow segment member, the dry material is lined even if the lining structure made of the hollow segment member is damaged. Since the molten metal can be received and sintered in the layer, the phenomenon that the molten metal reaches the iron skin constituting the outermost layer of the container can be avoided.
 なお、セグメント部材の背面に粉体の乾式材をライニングして上記効果を奏するためには、後記の表1に示すように、中空構造のセグメント部材のライニング厚みを13mm以上確保した上で、中空構造のセグメント部材のライニング厚み(A)と乾式材のライニング厚み(B)の比率を、B/A=0.15~9.0とすることが必要である。 In order to achieve the above effect by lining a dry powder material on the back of the segment member, as shown in Table 1 below, the lining thickness of the hollow segment member is secured to 13 mm or more, The ratio of the lining thickness (A) of the segment member having the structure to the lining thickness (B) of the dry material needs to be B / A = 0.15 to 9.0.
本実施形態の溶湯容器の断面図である。It is sectional drawing of the molten metal container of this embodiment. 他の実施形態の溶湯容器の断面図である。It is sectional drawing of the molten metal container of other embodiment.
 以下に本発明の好ましい実施形態を示す。本実施形態の溶湯容器は、金属溶湯搬送に用いられる金属溶湯搬送容器である。図1に示すように、本実施形態の金属溶湯搬送容器1は、鋼製の鉄皮2と、鉄皮2の内面に内張りされた断熱材3と、断熱材の内面にライニングされた粉体状の乾式材4と、乾式材4よりも内面側にライニングされた中空構造のセグメント部材5とで構成され、中空構造のセグメント部材5の内部には、更に、蓄熱材6が配置されている。前記の蓄熱材6に変えて、図2に示すように、中空構造のセグメント部材5の内側に、更に、通常のキャスタブル7をライニングすることもできる。 Hereinafter, preferred embodiments of the present invention will be described. The molten metal container of this embodiment is a molten metal conveyance container used for conveying a molten metal. As shown in FIG. 1, the molten metal transport container 1 of this embodiment includes a steel iron skin 2, a heat insulating material 3 lined on the inner surface of the iron skin 2, and a powder lined on the inner surface of the heat insulating material. The dry material 4 and the hollow structure segment member 5 lined on the inner surface side of the dry material 4, and the heat storage material 6 is further arranged inside the hollow structure segment member 5. . Instead of the heat storage material 6, as shown in FIG. 2, a normal castable 7 can be further lined inside the segment member 5 having a hollow structure.
 中空構造のセグメント部材5は、炭化珪素を主成分とし、肉厚1.5~3mm程度の板材により構成され、内部に5mm以上の空間8を持たせたものであり、本実施形態では、セグメント部材5の内部には、空間8の他に、蓄熱材6を配置している。蓄熱材6の蓄熱効果を奏するためには、5mm以上確保することが必要となるため、各セグメント部材5ごとの厚み(=板材(肉厚1.5~3mm程度)+空間8(5mm以上)+蓄熱材6(5mm以上))は、最低13mm以上確保することが必要となる。 The segment member 5 having a hollow structure is composed of a plate material having silicon carbide as a main component and a thickness of about 1.5 to 3 mm, and has a space 8 of 5 mm or more inside. In addition to the space 8, a heat storage material 6 is disposed inside the member 5. In order to achieve the heat storage effect of the heat storage material 6, it is necessary to secure 5 mm or more, so the thickness of each segment member 5 (= plate material (thickness of about 1.5 to 3 mm) + space 8 (5 mm or more) The + heat storage material 6 (5 mm or more) needs to be secured at least 13 mm or more.
 各セグメント部材5間の目地はモルタルで接着されている。本実施形態では、90%アルミナのモルタルを用いている。 The joints between the segment members 5 are bonded with mortar. In this embodiment, 90% alumina mortar is used.
 粉体状の乾式材4は、高アルミナ質耐火物(タップ充填後の比重が3程度。ここで、タップ充填とは、粉体を叩きながら充填することを意味する。)あるいは高シリカ質耐火物(タップ充填後の比重が2程度)を用いることができる。軽量化の観点からは、比重の小さい高シリカ質耐火物の乾式材が好ましく、高寿命化の観点からは高アルミナ質耐火物が好ましい。ただし、溶湯が通常のアルミナ溶湯の場合には、高シリカ質耐火物の乾式材を用いると、乾式材のシリカ(SiO)がアルミニウムに還元されてシリコン(Si)となりアルミ溶湯中に溶け出す(いわゆる、シリコンピックアップ)問題があるため好ましくないが、シリコンを含有する溶湯の場合には、好適に用いることができる。 The powdery dry material 4 is a high alumina refractory (specific gravity after tap filling is about 3; here, tap filling means filling while tapping the powder) or high siliceous refractory. A thing (specific gravity after tap filling is about 2) can be used. From the viewpoint of weight reduction, a dry material of a high siliceous refractory having a small specific gravity is preferable, and from the viewpoint of extending the life, a high alumina refractory is preferable. However, when the molten metal is a normal alumina molten metal, if a dry material of high siliceous refractory is used, the silica (SiO 2 ) of the dry material is reduced to aluminum and becomes silicon (Si) and melts into the molten aluminum. Although there is a problem (so-called silicon pickup), it is not preferable, but in the case of a molten metal containing silicon, it can be suitably used.
 粉体状の乾式材4は、粒子を最密充填となるようにパッキングして用いられるものであり、最大粒径5mmの粗粒からパウダー状の微粒まで、各種の粒度分布を有するものである。 The powdery dry material 4 is used by packing particles so as to be closely packed, and has various particle size distributions from coarse particles having a maximum particle size of 5 mm to fine powder particles. .
 粉体状の乾式材4のライニングは、鉄皮2の内面に断熱材3を巻いた後、中空構造のセグメント部材5を所定高さで円周状に組み付けたものを炉内に搬入し、断熱材と中空構造のセグメント部材5との間に粉体状の乾式材を最密充填でパッキングし、その後、再度、中空構造のセグメント部材5を所定高さで円周状に組み付けたものを炉内に搬入し、続いて、断熱材と中空構造のセグメント部材5との間に粉体状の乾式材を最密充填でパッキングする作業を繰り返し行っていく。 For the lining of the powdery dry material 4, the heat insulating material 3 is wound around the inner surface of the iron skin 2, and then a hollow structure segment member 5 is circumferentially assembled at a predetermined height and is carried into a furnace. A powdery dry material is packed between the heat insulating material and the hollow segment member 5 by close-packing, and then the hollow segment member 5 is assembled at a predetermined height around the circumference. The work is carried into the furnace, and subsequently, the operation of packing the powdery dry material between the heat insulating material and the hollow segment member 5 by close packing is repeated.
 乾式材4を最密充填でパッキングする際に、その内部に配置されている中空構造のセグメント部材5間の接合が緩んでしまうと、湯差し(ここで、湯差しとは、溶湯が侵入することを意味する。)の原因となるため好ましくない。本発明では、中空構造のセグメント部材5のライニング厚み(A)と、該乾式材4のライニング厚み(B)の比率B/Aを9.0未満とし、かつ、中空構造のセグメント部材5のライニング厚みを13mm以上とすることで、乾式材4を最密充填でパッキングするに際して、中空構造のセグメント部材間の十分な機械的強度を確保している。 When the dry material 4 is packed by close packing, if the joint between the segment members 5 having the hollow structure disposed therein is loosened, the hot water bottle (here, the molten metal penetrates the hot water bottle). This is not preferable. In the present invention, the ratio B / A between the lining thickness (A) of the segment member 5 having a hollow structure and the lining thickness (B) of the dry material 4 is less than 9.0, and the lining of the segment member 5 having a hollow structure is provided. By setting the thickness to 13 mm or more, sufficient mechanical strength between the segment members having the hollow structure is ensured when the dry material 4 is packed by close packing.
 なお、乾式材4のライニング厚み(B)を極端に薄くすると、中空構造のセグメント部材5からなる内張り構造に損傷が生じた場合であっても、溶湯を乾式材4のライニング層で受けて焼結させる効果が十分得られず、かつ乾式材4の施工も困難となるところ、本発明では、B/Aを0.15以上確保することにより、これらの問題を回避可能としている。 If the lining thickness (B) of the dry material 4 is extremely reduced, the molten metal is received by the lining layer of the dry material 4 and baked even if the lining structure composed of the segment members 5 having the hollow structure is damaged. However, in the present invention, it is possible to avoid these problems by securing B / A of 0.15 or more, because the effect of binding cannot be obtained sufficiently and the construction of the dry material 4 becomes difficult.
 中空構造のセグメント部材5は、炭化珪素の他、アルミナ、シリカ、チタン酸アルミニウム、窒化珪素、コージェライト、アルミナ、ジルコニア、サイアロン、ムライトの群から選定された1または2以上の材料で構成することもできる。ただし、溶湯の湯漏れ防止の観点から、セグメント部材5と乾式材4の熱膨張係数の差は、4×10-6以下で揃えることが好ましい。 The hollow segment member 5 is made of one or more materials selected from the group of alumina, silica, aluminum titanate, silicon nitride, cordierite, alumina, zirconia, sialon, and mullite in addition to silicon carbide. You can also. However, from the viewpoint of preventing molten metal from leaking, it is preferable that the difference in coefficient of thermal expansion between the segment member 5 and the dry material 4 is 4 × 10 −6 or less.
 図1のライニング構成において、中空構造のセグメント部材5と粉体状の乾式材4とのライニング厚みを検討した結果を下記表1に示している。表1のB欄において、「アルミナ質(95%)」および「シリカ質(98%)」とは、乾式材の組成を意味するものである。
Figure JPOXMLDOC01-appb-T000001
Table 1 below shows the results of examining the lining thickness of the segment member 5 having a hollow structure and the powdery dry material 4 in the lining configuration of FIG. In column B of Table 1, “alumina (95%)” and “silica (98%)” mean the composition of the dry material.
Figure JPOXMLDOC01-appb-T000001
 比較例1では、中空構造のセグメント部材のライニング厚みが13mm以上確保されておらず、乾式材を最密充填でパッキングする際に、セグメント部材が変形してしまい、施工が行えなかった。比較例2では、乾式材の厚みが薄すぎるため、乾式材の施工ができなかった。比較例3では、乾式材を最密充填でパッキングする際に、その内部に配置されている中空構造のセグメント部材間の接合が緩んでしまった。 In Comparative Example 1, the lining thickness of the segment member having a hollow structure was not secured to 13 mm or more, and the segment member was deformed when the dry material was packed with the closest packing, so that the construction could not be performed. In Comparative Example 2, the dry material could not be constructed because the dry material was too thin. In Comparative Example 3, when the dry material was packed by the closest packing, the joining between the segment members having the hollow structure disposed therein was loosened.
 なお、乾式材のライニング厚み(B)を極端に薄くすると、中空構造のセグメント部材からなる内張り構造に損傷が生じた場合であっても、溶湯を乾式材のライニング層で受けて焼結させる効果が十分得られず、かつ乾式材の施工も困難となるところ、本発明では、B/Aを0.15以上確保することにより、これらの問題を回避可能としている。 In addition, if the lining thickness (B) of the dry material is made extremely thin, even if the lining structure composed of the segment members having a hollow structure is damaged, the molten metal is received by the dry material lining layer and sintered. However, in the present invention, it is possible to avoid these problems by securing B / A of 0.15 or more.
1 金属溶湯搬送容器
2 鉄皮
3 断熱材
4 乾式材
5 セグメント部材
6 蓄熱材
7 キャスタブル
8 空間
DESCRIPTION OF SYMBOLS 1 Metal molten metal conveyance container 2 Iron skin 3 Thermal insulation material 4 Dry material 5 Segment member 6 Thermal storage material 7 Castable 8 Space

Claims (3)

  1.  容器内面に中空構造のセグメント部材をライニングした溶湯容器であって、
     該中空構造のセグメント部材の背面には、粉体の乾式材がライニングされ、
     中空構造のセグメント部材のライニング厚みを13mm以上確保した上で、
     該中空構造のセグメント部材と該乾式材を、
     乾式材のライニング厚み(B)/中空構造のライニング厚み(A)=0.15~9.0の範囲でライニングしたことを特徴とする溶湯容器。
    A molten metal container with a hollow segment lined on the inner surface of the container,
    On the back surface of the segment member of the hollow structure, a dry powder material is lined,
    After securing the lining thickness of the segment member of the hollow structure to 13 mm or more,
    The hollow segment member and the dry material,
    A molten metal container characterized by being lined in the range of dry material lining thickness (B) / hollow structure lining thickness (A) = 0.15 to 9.0.
  2.  中空構造のセグメント部材は、肉厚が1.5mm以上の壁面から構成されることを特徴とする請求項1記載の溶湯容器。 2. The molten metal container according to claim 1, wherein the segment member having a hollow structure is composed of a wall surface having a wall thickness of 1.5 mm or more.
  3.  該セグメント部材と乾式材との熱膨張係数の差が4×10-6以下であることを特徴とする請求項1または2記載の溶湯容器。
     
    3. The molten metal container according to claim 1, wherein a difference in thermal expansion coefficient between the segment member and the dry material is 4 × 10 −6 or less.
PCT/JP2013/063921 2012-07-06 2013-05-20 Molten metal vessel WO2014006990A1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015196171A (en) * 2014-03-31 2015-11-09 エヌジーケイ・アドレック株式会社 Container
CN107552773A (en) * 2017-10-31 2018-01-09 攀钢集团攀枝花钢铁研究院有限公司 Ladle masonry construction and ladle hollow brick

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06213572A (en) * 1993-01-12 1994-08-02 Arishiumu:Kk Crucible type induction furnace
JP2004050256A (en) * 2002-07-22 2004-02-19 Daido Steel Co Ltd Ladle having improved heat insulating property
JP2009233744A (en) * 2008-03-05 2009-10-15 National Institute Of Advanced Industrial & Technology Container capable of housing object
JP2012000650A (en) * 2010-06-17 2012-01-05 National Institute Of Advanced Industrial Science & Technology Container

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06213572A (en) * 1993-01-12 1994-08-02 Arishiumu:Kk Crucible type induction furnace
JP2004050256A (en) * 2002-07-22 2004-02-19 Daido Steel Co Ltd Ladle having improved heat insulating property
JP2009233744A (en) * 2008-03-05 2009-10-15 National Institute Of Advanced Industrial & Technology Container capable of housing object
JP2012000650A (en) * 2010-06-17 2012-01-05 National Institute Of Advanced Industrial Science & Technology Container

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015196171A (en) * 2014-03-31 2015-11-09 エヌジーケイ・アドレック株式会社 Container
CN107552773A (en) * 2017-10-31 2018-01-09 攀钢集团攀枝花钢铁研究院有限公司 Ladle masonry construction and ladle hollow brick

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JPWO2014006990A1 (en) 2016-06-02

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