JPS62183959A - Method for preventing oxidation of lining of vessel for molten metal - Google Patents
Method for preventing oxidation of lining of vessel for molten metalInfo
- Publication number
- JPS62183959A JPS62183959A JP2362186A JP2362186A JPS62183959A JP S62183959 A JPS62183959 A JP S62183959A JP 2362186 A JP2362186 A JP 2362186A JP 2362186 A JP2362186 A JP 2362186A JP S62183959 A JPS62183959 A JP S62183959A
- Authority
- JP
- Japan
- Prior art keywords
- mortar
- vessel
- carbon
- molten metal
- bricks
- 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
- 230000003647 oxidation Effects 0.000 title claims abstract description 12
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 12
- 239000002184 metal Substances 0.000 title claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 8
- 238000000034 method Methods 0.000 title claims description 6
- 239000011449 brick Substances 0.000 claims abstract description 23
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 19
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 13
- 238000005260 corrosion Methods 0.000 claims abstract description 8
- 239000002893 slag Substances 0.000 claims abstract description 8
- 230000007797 corrosion Effects 0.000 claims abstract description 7
- 238000010276 construction Methods 0.000 claims 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 8
- 229910000831 Steel Inorganic materials 0.000 abstract description 7
- 239000010959 steel Substances 0.000 abstract description 7
- 238000007670 refining Methods 0.000 abstract description 3
- 229910052845 zircon Inorganic materials 0.000 abstract description 3
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 abstract description 3
- 230000006866 deterioration Effects 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
Landscapes
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
この発明は、取鍋やトーピードカー等の溶融金属容器の
スラグラインに構築したカーボン系れんがの酸化防止方
法に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a method for preventing oxidation of carbon-based bricks constructed in a slag line of a molten metal vessel such as a ladle or a torpedo car.
従来技術とその問題点
近年、取鍋やトーピードカー等の溶融金属容器は、本来
の用途である受鋼・鉄容器以外に、精錬容器としても使
用されるようになうたことから、その過酷な使用条件に
も耐え得るように、スラグラインにカーボン系れんがが
構築されるようになった。Conventional technology and its problems In recent years, molten metal containers such as ladles and torpedo cars have come to be used not only as steel receiving and iron containers, but also as refining containers, and as a result, they have become subject to harsh use. Carbon-based bricks were now constructed in the slag line to withstand the conditions.
ところが、カーボン系れんかには酸化しやすい欠点があ
り、一方、溶融金属容器は構築後、使用に先立ち乾燥な
らびに保温のために加熱昇温を行なうことから、この間
の温度上昇過程と昇温終了から受鋼までの温度下降過程
で、スラグラインに構築したカーボン系れんがの酸化が
いっそう促進され、１−耐食性が大幅に劣化する問題が
あった。However, carbon-based bricks have the disadvantage of being easily oxidized, and on the other hand, after construction of a molten metal container, the temperature is increased for drying and heat retention before use. During the temperature reduction process from the steel to the receiving steel, the oxidation of the carbon bricks constructed in the slag line is further promoted, causing the problem that 1-corrosion resistance is significantly deteriorated.
問題点を解決するための手段
この発明者は、カーボン系れんがの酸化防止手段につい
て種埼研究の結果、れんがの表面に、高アルミナ又はジ
ルコンモルタル等の高１耐熱・耐食性モルタルを塗付す
ることが効果が著しいことを知見し、この知見に基づい
て、この発明を完成するに至った。Means for Solving the Problems As a result of Tanesaki's research on means for preventing oxidation of carbon-based bricks, the inventor found that the surface of the bricks should be coated with a high-1 heat-resistant and corrosion-resistant mortar such as high alumina or zircon mortar. It was discovered that the effect was remarkable, and based on this knowledge, the present invention was completed.
すなわちこの発明は、取鍋やトーピードカー等の溶融金
属容器のスラグラインにカーボン系れんがを構築するに
際し、該カーボン系れんがの表面に、構築後直ちに、高
アルミナ又はジルコンモルタル等の高耐熱・耐食性モル
タルを塗付することにより、受鋼前の酸化を防止するも
のである。That is, this invention provides a method for constructing carbon-based bricks in the slag line of a molten metal container such as a ladle or a torpedo car, by immediately applying a highly heat-resistant and corrosion-resistant mortar such as high alumina or zircon mortar to the surface of the carbon-based bricks after construction. This prevents oxidation before receiving the steel.
この発明を実施するに当り、高アルミナモルタルの酸化
防止効果について５ｉＩＩ！６を行った。 −実倹は
、取鍋のスラグラインに第１表に示す諸元のカーボン系
れんがを構築し、その一部のれんが表面に、構塙後直ち
に、第２表に示す諸元の高アルミナモルタルを厚さ１〜
３Ｍに塗付し、２４時間の加熱昇温を行った３０分後に
取出し、酸化による気孔生成率を比較した。その内、厚
さ３ｎに中村した場合の結果を第２図に示す。In carrying out this invention, we will discuss the oxidation prevention effect of high alumina mortar! I did 6. -Jitsumai builds carbon bricks with the specifications shown in Table 1 on the slag line of the ladle, and immediately after laying the bricks, high alumina mortar with the specifications shown in Table 2 is applied to the surface of some of the bricks. Thickness 1~
It was applied to 3M, heated for 24 hours, then taken out 30 minutes later, and the pore formation rate due to oxidation was compared. Among these, the results when Nakamura was applied to a thickness of 3n are shown in FIG.
この結果からも明らかなように、高アルミナモルタルの
塗付が酸化による気孔生成を抑制するこ乏が８１認でき
た。As is clear from these results, it was confirmed that the application of high alumina mortar did not suppress the formation of pores due to oxidation.
実 施 例
スラ／／−ラインを第１表に示す諸元のカーボン系れん
がとする取鍋を２基横築し、一方の取鍋のカーボン系れ
んが表面に、構築後直ちに、第２表に示す諸元の高アル
ミナモルタルを厚さ３Ｗ′ＩＩに塗付し、他方の取鍋の
カーボン系れんが表面はそのまま七し、共に２０時間の
加熱昇温を行い、１２０チヤージの注湯作業を実施した
。Example: Two ladles made of carbon bricks with the specifications shown in Table 1 were constructed horizontally, and immediately after construction, the ladle was placed on the surface of the carbon bricks of one of the ladles as shown in Table 2. High alumina mortar with the specifications shown was applied to a thickness of 3W'II, the surface of the carbon brick in the other ladle was left as is, and both were heated for 20 hours and poured for 120 charges. did.
そして、れんが表面の損耗速度を３０チヤージ毎に測定
し、第１図及び第３表に示す結果を得た。The wear rate of the brick surface was measured every 30 charges, and the results shown in FIG. 1 and Table 3 were obtained.
この結果からも明らかなように、取鍋使用初期において
、高アルミナモルタル塗付による効果が顕著に認められ
、この発明方法により、カーボン系れんがの受鋼前酸化
が防止されたことがわかる。As is clear from these results, the effect of applying high alumina mortar was noticeable in the early stages of ladle use, and it can be seen that the method of the present invention prevented oxidation of carbon-based bricks before receiving the steel.
第 １ 表
第 ２ 表
第 ３ 表
発明の効果
この発明は、前記したように、取鍋やトーピードカー等
の溶融金属容器のスラグラインに構築したカーボン系れ
んがの受鋼前酸化による耐食性の劣化を有効に防止でき
るものであるから、精錬容器としての過酷な使用条件に
も十分耐え得ることができ、又、寿命延長が図れる等す
ぐれた効果を奏するものである。Table 1 Table 2 Table 3 Effects of the Invention As described above, this invention effectively suppresses the deterioration of corrosion resistance due to oxidation before steel receiving of carbon-based bricks constructed in the slag line of molten metal containers such as ladles and torpedo cars. Since it can prevent this, it can sufficiently withstand the harsh conditions of use as a refining vessel, and has excellent effects such as extending its life.
？Ｘ１図はこの発明と従来の実施例におけるカーボン系
れんが表面の損耗速度を示すグラフ、第２図はカーボン
系れんがの酸化による気孔生成率を示すグラフである。
取鍋使用回数（ｃｈ）? FIG. Number of times ladle is used (ch)
Claims (1)
属容器において、前記カーボン系れんがの表面に、構築
後直ちに、高耐熱・耐食性モルタルを塗付することを特
徴とする溶融金属容器の内張酸化防止方法。1. A method for preventing oxidation of lining a molten metal container in which a slag line is constructed of carbon-based bricks, the method comprising applying highly heat-resistant and corrosion-resistant mortar to the surface of the carbon-based bricks immediately after construction. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2362186A JPS62183959A (en) | 1986-02-05 | 1986-02-05 | Method for preventing oxidation of lining of vessel for molten metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2362186A JPS62183959A (en) | 1986-02-05 | 1986-02-05 | Method for preventing oxidation of lining of vessel for molten metal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62183959A true JPS62183959A (en) | 1987-08-12 |
| JPH054180B2 JPH054180B2 (en) | 1993-01-19 |
Family
ID=12115672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2362186A Granted JPS62183959A (en) | 1986-02-05 | 1986-02-05 | Method for preventing oxidation of lining of vessel for molten metal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62183959A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4926925A (en) * | 1988-06-08 | 1990-05-22 | Ishikawajima-Harima Jukogyo Kabushiki Kaisha | Pouring apparatus for moving-mold type continuous casting machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5536019A (en) * | 1978-09-04 | 1980-03-13 | Tokyo Yogyo Co Ltd | Protection method of lining of molten metal container |
| JPS59220275A (en) * | 1983-05-30 | 1984-12-11 | Nippon Steel Corp | Repairing method of inside wall of molten metal container or the like |
-
1986
- 1986-02-05 JP JP2362186A patent/JPS62183959A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5536019A (en) * | 1978-09-04 | 1980-03-13 | Tokyo Yogyo Co Ltd | Protection method of lining of molten metal container |
| JPS59220275A (en) * | 1983-05-30 | 1984-12-11 | Nippon Steel Corp | Repairing method of inside wall of molten metal container or the like |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4926925A (en) * | 1988-06-08 | 1990-05-22 | Ishikawajima-Harima Jukogyo Kabushiki Kaisha | Pouring apparatus for moving-mold type continuous casting machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH054180B2 (en) | 1993-01-19 |
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