JPH0659457U - Converter tap steel sleeve brick structure - Google Patents
Converter tap steel sleeve brick structureInfo
- Publication number
- JPH0659457U JPH0659457U JP005414U JP541493U JPH0659457U JP H0659457 U JPH0659457 U JP H0659457U JP 005414 U JP005414 U JP 005414U JP 541493 U JP541493 U JP 541493U JP H0659457 U JPH0659457 U JP H0659457U
- Authority
- JP
- Japan
- Prior art keywords
- sleeve brick
- heat insulating
- insulating ceramic
- converter
- steel sleeve
- 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
Landscapes
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
(57)【要約】
【目的】 耐蝕性を低下させることなく、耐熱衝撃性を
向上できる転炉出鋼口スリーブれんがの構造を提供する
にある。
【構成】 マグネシア−黒鉛質転炉出鋼口スリーブれん
がにおいて、スリーブれんが１の外周および又は内周の
両方又はいずれかに断熱セラミックスシート２を貼り付
けたことを特徴としている。
【効果】 マグネシア−黒鉛質転炉出鋼口スリーブれん
がにおいて、外周又は内周に断熱セラミックスシートを
貼り付けて使用した結果、耐熱衝撃性が向上し、耐用も
向上した。特に内、外周の両方に断熱セラミックスシー
トを貼り付けた場合は実炉において耐用が１０％以上も
向上した。
(57) [Abstract] [Purpose] It is intended to provide a structure of a converter exit tap sleeve brick that can improve thermal shock resistance without lowering corrosion resistance. [Structure] A magnesia-graphite converter tap steel sleeve brick is characterized in that a heat insulating ceramic sheet 2 is attached to both or both of the outer circumference and / or the inner circumference of the sleeve brick 1. [Effect] In the magnesia-graphite converter tap steel sleeve brick, a heat insulating ceramic sheet was attached to the outer circumference or the inner circumference, and as a result, the thermal shock resistance was improved and the durability was also improved. In particular, when the heat insulating ceramic sheets were attached to both the inner and outer circumferences, the service life was improved by 10% or more in the actual furnace.
Description
【０００１】[0001]
本考案は転炉出鋼口スリーブの改良に関し、さらに詳しくは耐蝕性を低下させ ることなく、耐熱衝撃性を向上できる転炉出鋼口スリーブれんがの構造に関する ものである。 The present invention relates to improvement of a converter tap steel sleeve, and more particularly to a structure of a converter tap sleeve brick that can improve thermal shock resistance without lowering corrosion resistance.
【０００２】[0002]
近年、マグネシア・カーボンれんがは耐蝕性および耐熱衝撃性に優れているこ とから、転炉出鋼口スリーブれんがに広く使用されるようになった。 In recent years, since magnesia-carbon bricks are excellent in corrosion resistance and thermal shock resistance, they have been widely used in converter tap sleeve sleeve bricks.
【０００３】[0003]
しかし、マグネシア・カーボンれんがは、有機バインダーにて混練成形されて いることから、急激な熱を加えられると、れんが内の揮発分が急激に発生し、そ のガス圧によりれんが内にき裂を生じることがある。 However, since magnesia-carbon bricks are kneaded and molded with an organic binder, when heated rapidly, volatile components in the bricks are rapidly generated, and the gas pressure causes cracks in the bricks. May occur.
【０００４】 そして、このき裂がかけ・はくりにつながり、出鋼口スリーブの耐用を悪くし ている。Then, these cracks lead to cracking and peeling, which deteriorates the durability of the tap hole.
【０００５】[0005]
本考案者らは鋭意研究した結果、マグネシア−カーボン質転炉出鋼口スリーブ れんがの耐蝕性、耐摩耗性を向上させ、耐スポール性を高めるためには、断熱セ ラミックスシートをスリーブ内面、外面に貼り付けることが有効であることを見 い出した。 As a result of diligent research conducted by the present inventors, in order to improve the corrosion resistance and wear resistance of the magnesia-carbonaceous converter steel outlet sleeve brick and enhance the spall resistance, a heat insulating ceramic sheet is used on the inner surface of the sleeve. We found that sticking to the outer surface was effective.
【０００６】 そこで本考案は、マグネシア−黒鉛質転炉口スリーブれんがにおいて、スリー ブれんがの外周および又は内周の両方又はいずれかに断熱セラミックスシートを 貼り付けたことを特徴とする転炉出鋼口スリーブれんが構造を提供するにある。 断熱セラミックスシートとしてはＡｌ2Ｏ3，ＳiＯ2，ＭgＯ又はＺrＯ2等を主成 分として含むファイバー又は微粒子と有機又は無機バインダーにより製造された 柔軟性のあるシートが良い。 次に本考案を以下実施例について図面を参照しながら説明する。In view of the above, the present invention is characterized in that in a magnesia-graphite converter core sleeve brick, a heat insulating ceramic sheet is attached to both the outer periphery and / or the inner periphery of the sleeve brick, or the converter steel strip. The mouth sleeve is to provide the brick structure. The heat insulating ceramic sheet is preferably a flexible sheet made of fibers or fine particles containing Al 2 O 3 , SiO 2 , MgO or ZrO 2 as a main component and an organic or inorganic binder. Next, the present invention will be described with reference to the drawings with reference to the following embodiments.
【０００７】[0007]
図１〜図４に実施例と比較例を、また表１に実炉にて使用した結果を示す。 1 to 4 show examples and comparative examples, and Table 1 shows the results of use in an actual furnace.
【０００８】[0008]
【表１】 [Table 1]
【０００９】 スリーブれんが１において、図１の実施例１は外周のみ、図２の実施例２は内 周のみ、また図３の実施例３は外周と内周に断熱セラミックスシート２を貼った ものである。In the sleeve brick 1, the embodiment 1 of FIG. 1 has only the outer circumference, the embodiment 2 of FIG. 2 has only the inner circumference, and the embodiment 3 of FIG. 3 has the heat insulating ceramic sheet 2 attached to the outer circumference and the inner circumference. Is.
【００１０】[0010]
マグネシア−黒鉛質転炉出鋼口スリーブれんがにおいて外周又は内周に断熱セ ラミックスシートを貼り付けて使用した結果、耐熱衝撃性が向上し耐用も向上し た。特に内、外周の両方に断熱セラミックスシートを貼り付けた実施例３は実炉 において耐用が１０％以上も向上した。 As a result of using a heat insulating ceramic sheet on the outer or inner circumference of the magnesia-graphite converter tap steel sleeve brick, the thermal shock resistance and durability were improved. Particularly, in Example 3 in which the heat insulating ceramic sheets were attached to both the inner and outer circumferences, the service life was improved by 10% or more in the actual furnace.
【図１】本考案実施例における比較例の説明図である。FIG. 1 is an explanatory diagram of a comparative example in an example of the present invention.
【図２】本考案実施例における実施例１の説明図であ
る。FIG. 2 is an explanatory diagram of Embodiment 1 in the embodiment of the present invention.
【図３】本考案実施例における実施例２の説明図であ
る。FIG. 3 is an explanatory diagram of Embodiment 2 in the embodiment of the present invention.
【図４】本考案実施例における実施例３の説明図であ
る。FIG. 4 is an explanatory diagram of Embodiment 3 in the embodiment of the present invention.
１ スリーブれんが ２ セラミックスシート 1 Sleeve brick 2 Ceramic sheet
Claims (1)
て、スリーブれんがの外周および又は内周の両方又はい
ずれかに断熱セラミックスシートを貼り付けたことを特
徴とする転炉出鋼口スリーブれんが構造。A magnesia-graphite converter tap sleeve sleeve brick, characterized in that a heat insulating ceramic sheet is attached to the outer circumference and / or the inner circumference of the sleeve brick, or a heat insulating ceramic sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP005414U JPH0659457U (en) | 1993-01-25 | 1993-01-25 | Converter tap steel sleeve brick structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP005414U JPH0659457U (en) | 1993-01-25 | 1993-01-25 | Converter tap steel sleeve brick structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0659457U true JPH0659457U (en) | 1994-08-19 |
Family
ID=11610492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP005414U Pending JPH0659457U (en) | 1993-01-25 | 1993-01-25 | Converter tap steel sleeve brick structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0659457U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5823550A (en) * | 1981-07-31 | 1983-02-12 | Nippon Steel Corp | Controlling method for broadside thickness of thin strip produced by quenching of molten metal |
-
1993
- 1993-01-25 JP JP005414U patent/JPH0659457U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5823550A (en) * | 1981-07-31 | 1983-02-12 | Nippon Steel Corp | Controlling method for broadside thickness of thin strip produced by quenching of molten metal |
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