JPS62227560A - Working method for tundish lining refractory - Google Patents
Working method for tundish lining refractoryInfo
- Publication number
- JPS62227560A JPS62227560A JP7142786A JP7142786A JPS62227560A JP S62227560 A JPS62227560 A JP S62227560A JP 7142786 A JP7142786 A JP 7142786A JP 7142786 A JP7142786 A JP 7142786A JP S62227560 A JPS62227560 A JP S62227560A
- Authority
- JP
- Japan
- Prior art keywords
- spraying
- refractory
- wear
- tundish
- coating
- 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
- 238000000034 method Methods 0.000 title description 12
- 239000000463 material Substances 0.000 claims abstract description 33
- 239000011248 coating agent Substances 0.000 claims abstract description 25
- 238000000576 coating method Methods 0.000 claims abstract description 25
- 238000005507 spraying Methods 0.000 claims abstract description 21
- 238000009749 continuous casting Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 3
- 238000002844 melting Methods 0.000 abstract description 8
- 230000008018 melting Effects 0.000 abstract description 8
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 238000005266 casting Methods 0.000 abstract description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 3
- 229910052593 corundum Inorganic materials 0.000 abstract 3
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 3
- 230000015556 catabolic process Effects 0.000 abstract 2
- 238000006731 degradation reaction Methods 0.000 abstract 2
- 239000007921 spray Substances 0.000 description 7
- 239000011819 refractory material Substances 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 3
- BYFGZMCJNACEKR-UHFFFAOYSA-N aluminium(i) oxide Chemical compound [Al]O[Al] BYFGZMCJNACEKR-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229930194542 Keto Natural products 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000000468 ketone group Chemical group 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 229910052845 zircon Inorganic materials 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/02—Linings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
この発明は連続鋳造用タンディツシュの内張耐火物の施
工方法に係り、特にウェア耐火物と吹付層からなる内張
＋ｌｌ動物劣化を防止しかつ耐火物コストの低減をはか
った内張＋ｌｔ１大物の施工方法に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a method for constructing a refractory lining for a tundish for continuous casting, and in particular to a method for constructing a refractory lining for a tundish for continuous casting, and in particular for a lining consisting of a wear refractory and a sprayed layer, which prevents animal deterioration and protects the refractory. This article relates to a construction method for lining + LT1 large items that aims to reduce costs.
従来技術とその問題点
連続鋳造用タンディツシュは周知のとおり取鍋とモール
ドの中間に位置し１＃大物で内張した容器で、装置とし
ては単純な構造であるが、操業、品質においては最も重
要な部分の１つである。そのため、内張用耐火物の材質
、内張構成、施工方法は非常に重要である。Conventional technology and its problems As is well known, a tundish for continuous casting is a container lined with a 1# large container located between the ladle and the mold, and although it has a simple structure as an equipment, it is the most important in terms of operation and quality. This is one of the important parts. Therefore, the material, lining structure, and construction method of the refractory lining are very important.
一般的なタンディツシュの内張構成としてはウェア１＃
大物とその上に形成された吹付層とからなっており、ウ
ェア耐火物には地金寸きの少ないろう石質またはシャモ
ツト質れんが、あるいは中ＡＪｌｂＯｓ質やジルコン質
が主に使用されている。また、吹付材は一般にＭｇＯ系
の粉末が広く使用されている。Wear 1# as the lining composition of a general Tanditshu.
It consists of a large material and a sprayed layer formed on it.Ware refractories are mainly made of waxite or chamotite brick with a small base metal size, or medium AJlbOs material or zircon material. Furthermore, MgO-based powder is generally widely used as a spraying material.
ところが、王妃ウェア耐火物中にはいずれも低融点化合
物である３４０．が３０％以上含有されており、鋳造中
に吹付材中のＭｇＯと容易に反応し、液相の生成により
焼付が発生し、ウェア耐火物を劣化させるとともに吹付
層の剥離性が低下しタンディツシュ補修作業能率の大幅
低下をもたらすという問題かある。そのため、従来はウ
ェア：＃人物の材質強化によって吹付層との反応を軽減
しているが、耐火物コストが高くつき好ましくなかった
。However, all Queen Ware refractories contain 340.0%, which is a low melting point compound. Contains 30% or more of MgO in the spray material during casting, easily reacts with MgO in the spray material, and the formation of a liquid phase causes seizure, deteriorating the wear refractories and reducing the removability of the spray layer, making it difficult to repair tundishes. There is a problem in that it causes a significant drop in work efficiency. Therefore, in the past, the reaction with the sprayed layer was reduced by strengthening the material of the wear, but this was undesirable due to the high cost of refractories.
発 明 の 目 的
この発明は従来の前記問題点、すなわちウェア耐火物の
劣化と吹付層の剥離性低下０）問題を解決するためにな
されたもので、ウェア１１ＩＩｔ人物ト吹付層との間に
高Ａ４０３系コーテイング材を塗布することによって、
ウェア耐火物と吹付材の焼付を防止し、安価なウェア１
酎大物の使用と捕修作業能率の向上がはかられる内張耐
火物の施工方法を提案することを目的とするものである
。Purpose of the Invention This invention was made to solve the above-mentioned conventional problems, namely the deterioration of the wear refractory and the decrease in the peelability of the sprayed layer. By applying high A403 coating material,
Ware prevents seizure of refractories and spray materials, and is inexpensive wear 1
The purpose of this study is to propose a method for constructing refractory linings that uses chudaimono and improves the efficiency of repair work.
発 明 の 構 成
この発明に係るタンディツシュの内張耐火物の施工方法
は、タンディツシュのウェア１耐大物の上に吹付材を吹
付施工するに際し、吹付前のウェア耐火物表面に高Ａ４
０３系コーテイング材を塗布し高融点のＡｌ、Ｏ，系被
膜を生成せしめ、このＡｌ１ｔ ０１系被膜の表面に吹
付材を吹付けることを特徴とするものである。Structure of the Invention The method for constructing a refractory lining for a tandish according to the present invention is such that when spraying material is sprayed onto a large ware refractory for a tundish, a high A4 lining refractory is applied to the surface of the ware refractory before spraying.
The method is characterized in that a 03 type coating material is applied to form a high melting point Al, O, type coating, and a spraying material is sprayed onto the surface of this Al1t 01 type coating.
すなわち、この発明は吹付施工前のウェア耐火物表面に
あらかじめ高Ａ（ｂｏ＊系コーティング材を薄く塗布し
、吹付層との境界に高融点のＡ１１ｔ ｏｓ系被被膜生
成せしめることによって、ウェア；耐火物との直接の反
応を回避し焼付を防止するものである。That is, this invention applies a thin layer of high A (bo*) coating material to the surface of the ware refractory before spraying, and forms a high melting point A11t os coating at the boundary with the sprayed layer. This is to avoid direct reaction with objects and prevent seizure.
以下、この発明方法を図面を参照しつつ説明する。第１
図はこの発明方法により施工したタンディツシュの断面
構造を示す。（１）は鉄皮、（２）はウェア１酎大物、
（３）は高融点のＡ７？ｔＯｚ系波膜、（４）は吹付層
、（５］は溶鋼を示す。The method of this invention will be explained below with reference to the drawings. 1st
The figure shows the cross-sectional structure of a tundish constructed by the method of this invention. (1) is iron skin, (2) is wear 1 chudaibutsu,
(3) is A7 with high melting point? tOz-based wave film, (4) is a sprayed layer, and (5) is molten steel.
すなわち、この発明方法はタンディツシュの吹付施工に
あたって、ウェア耐火物（２）の表面に高Ａ４０３系コ
ーテイング材を塗布し高融点のｘｅ、ｏ。That is, in the method of the present invention, when spraying a tanditsh, a high A403 coating material is applied to the surface of the wear refractory (2) and a high melting point xe, o is applied.
系被膜（３）を形成する。ここで、高Ａ４０３系コーテ
イング材はｋｅｔｏｓを８０％以上含有する材料であり
、通常２７００℃程度の温度に耐える特性を有する。こ
の高Ａ１１ｔ Ｏｓ系コーテイング材の塗布方法として
は、特に限定するものではないが、スプレ一方式あるい
はハケ塗りにて塗布するのが一役的である。コーテイン
グ材を塗布すると適当な手段で乾燥させて高融点のｈｌ
ｌ、ｏ、系被膜（３）を生成させる。A system coating (3) is formed. Here, the high A403-based coating material is a material containing 80% or more of ketos, and typically has the property of withstanding temperatures of about 2700°C. The method of applying this high A11t Os-based coating material is not particularly limited, but it is useful to apply it by spraying or brushing. Once the coating material is applied, it is dried using an appropriate method to form a high melting point HL.
l, o, system coating (3) is produced.
このＡ／、Ｏ，系被膜（３）の厚みは特に限定するもの
ではないが、効果と経済性を考ｒｘすると２〜５絹程度
が好ましい。なお、このコーテイング材を塗布する個所
は、ここではウェア耐火物（２）の内面全体を示したが
、特に熱負荷を受けやすい部位（スラグライン等）に限
ってもよい。The thickness of this A/, O, system coating (3) is not particularly limited, but in consideration of effectiveness and economy, it is preferably about 2 to 5 thick. Although the coating material is applied to the entire inner surface of the wear refractory (2) here, it may be applied only to areas particularly susceptible to heat load (such as slag lines).
ウェア１＃大物（２）の表面に上記Ａ７！、Ｏ，系肢膜
（３）を生成させると、吹付材を吹付けて吹付層（４）
を形成する。この吹付層（４）の厚さは通常１０〜２０
１１程度である。The above A7 is on the surface of wear 1# big item (2)! , O, After generating the limb membrane (3), spray material is sprayed to form the spray layer (4).
form. The thickness of this sprayed layer (4) is usually 10 to 20
It is about 11.
発 明 の 効 果
この発明は吹付施工前のウェア耐火物表面にあらかじめ
高Ａｌ２Ｏ，系コーテイング材を薄く塗布し、吹付層と
の境界に高融点のＡ５ｔＯ８系被膜を生成させるので、
この高融点Ａｅ２ Ｏｓ系被膜により吹付材とウェア１
耐火物との直接反応が回避され、焼付が防止される。従
って、ウェア１耐火物の劣化が防止されるとともに、涛
造後の吹付層との剥ｙ性が良好となＱ）タンディツシュ
補修作業の能率向上がはかられる。また、吹付材とウェ
ア１＃大物との直接反応が回避できることから、安価な
ウェア１耐大物の使用も可能となり耐火物コストの低減
効果も大きい。Effects of the Invention In this invention, a high Al2O coating material is applied thinly to the surface of the wear refractory before spraying, and a high melting point A5tO8 coating is generated at the boundary with the sprayed layer.
This high-melting-point Ae2Os-based coating allows the spraying material and wear 1 to
Direct reaction with refractories is avoided and seizure is prevented. Therefore, deterioration of the wear 1 refractory is prevented, and peelability from the sprayed layer after rolling is good.Q) Efficiency of tundish repair work is improved. Furthermore, since a direct reaction between the spray material and the Wear 1 # large object can be avoided, it is possible to use the inexpensive Wear 1 large object, and the effect of reducing refractory costs is significant.
第１図はこの発明方法により施工したタンディツシュの
断面構造を示す縦断面図である。
１・・・鉄皮、２・・・ウェア耐火物、３・・・Ａｇ、
ｏ、系被膜、４・・・吹付層。FIG. 1 is a longitudinal cross-sectional view showing the cross-sectional structure of a tundish constructed by the method of this invention. 1... Iron skin, 2... Ware refractory, 3... Ag,
o, system coating, 4... sprayed layer.
Claims (1)
を吹付施工するに際し、吹付前のウェア耐火物表面に高
Ａｌ＿２Ｏ＿３系コーティング材を塗布し高融点のＡｌ
＿２、Ｏ＿３系被膜を生成せしめ、このＡｌ＿２Ｏ＿３
系被膜の表面に吹付材を吹付けることを特徴とするタン
ディッシュの内張耐火物施工方法。When spraying a spraying material onto the wear refractory of a tundish for continuous casting, a high Al_2O_3 coating material is applied to the surface of the wear refractory before spraying.
_2, O_3 system film is generated, and this Al_2O_3
A tundish lining refractory construction method characterized by spraying a spraying material onto the surface of a system coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7142786A JPS62227560A (en) | 1986-03-28 | 1986-03-28 | Working method for tundish lining refractory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7142786A JPS62227560A (en) | 1986-03-28 | 1986-03-28 | Working method for tundish lining refractory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62227560A true JPS62227560A (en) | 1987-10-06 |
Family
ID=13460201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7142786A Pending JPS62227560A (en) | 1986-03-28 | 1986-03-28 | Working method for tundish lining refractory |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62227560A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62244557A (en) * | 1986-04-16 | 1987-10-24 | Harima Refract Co Ltd | Working method for tundish coating material |
| WO1992000157A1 (en) * | 1990-06-27 | 1992-01-09 | Daussan Et Compagnie | Method for coating the inside of a metallurgical container with a protective coating having at least two layers, and protective coating thereby obtained |
-
1986
- 1986-03-28 JP JP7142786A patent/JPS62227560A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62244557A (en) * | 1986-04-16 | 1987-10-24 | Harima Refract Co Ltd | Working method for tundish coating material |
| WO1992000157A1 (en) * | 1990-06-27 | 1992-01-09 | Daussan Et Compagnie | Method for coating the inside of a metallurgical container with a protective coating having at least two layers, and protective coating thereby obtained |
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