JPH04198063A - Hot repairing material - Google Patents
Hot repairing materialInfo
- Publication number
- JPH04198063A JPH04198063A JP2323129A JP32312990A JPH04198063A JP H04198063 A JPH04198063 A JP H04198063A JP 2323129 A JP2323129 A JP 2323129A JP 32312990 A JP32312990 A JP 32312990A JP H04198063 A JPH04198063 A JP H04198063A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- powder
- hot
- repairing material
- raw material
- 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
- 239000000463 material Substances 0.000 title claims abstract description 18
- 239000000843 powder Substances 0.000 claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims abstract description 15
- 239000002994 raw material Substances 0.000 claims abstract description 10
- INJRKJPEYSAMPD-UHFFFAOYSA-N aluminum;silicic acid;hydrate Chemical compound O.[Al].[Al].O[Si](O)(O)O INJRKJPEYSAMPD-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000010443 kyanite Substances 0.000 claims abstract description 7
- 229910052850 kyanite Inorganic materials 0.000 claims abstract description 7
- 229920005989 resin Polymers 0.000 claims abstract description 7
- 239000011347 resin Substances 0.000 claims abstract description 7
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 6
- 150000002739 metals Chemical class 0.000 claims abstract description 3
- 239000000203 mixture Substances 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000010459 dolomite Substances 0.000 claims description 3
- 229910000514 dolomite Inorganic materials 0.000 claims description 3
- 239000013535 sea water Substances 0.000 claims description 3
- 239000010680 novolac-type phenolic resin Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 2
- 239000005011 phenolic resin Substances 0.000 abstract description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 abstract 1
- 229920003986 novolac Polymers 0.000 abstract 1
- 229920001568 phenolic resin Polymers 0.000 abstract 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 10
- 230000008602 contraction Effects 0.000 description 5
- 239000000395 magnesium oxide Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- -1 lowite Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- WHOPEPSOPUIRQQ-UHFFFAOYSA-N oxoaluminum Chemical compound O1[Al]O[Al]1 WHOPEPSOPUIRQQ-UHFFFAOYSA-N 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
Landscapes
- Ceramic Products (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〕
本発明は、製鉄業の各種窯炉に使用する炉壁の熱間補修
材に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a hot repair material for furnace walls used in various types of furnaces in the steel industry.
この種補修材としては、ＭｇＯ質耐火原料に少量の粉末
ピッチ及び金属アルミニウム粉末を混和し、フェノール
樹脂を添加した組成物からなる焼付材が熱間補修材とし
て用いられているが、使用温度（１４００°Ｃ前後）に
おける残存線膨張収縮率が比較的太きいために、施工部
層縁からの剥落現象が多くその改善が望まれている現状
である。As this type of repair material, a baking material made of a composition made by mixing a small amount of powder pitch and metal aluminum powder with MgO refractory raw material and adding phenol resin is used as a hot repair material. Since the residual linear expansion/contraction rate at temperatures (around 1400°C) is relatively large, the phenomenon of peeling off from the edges of the applied layer is common, and improvement of this problem is currently desired.
前述の如き従来の熱間補修材の施工後の剥落現象を改善
するには、使用温度における残存線膨張収縮率を小とす
ることにある。In order to improve the above-mentioned peeling phenomenon of conventional hot repair materials after construction, it is necessary to reduce the residual linear expansion/contraction rate at the service temperature.
本発明者らは前記のような従来品の諸欠陥を改善するた
め種々検討かつ実験の結果、熱間補修材の残存線膨張収
縮率を減少させるために、ロー石、カイヤナイト等の膨
張性原料をこの種補修材に添加することにより改善する
ことに成功したものであり、本発明の技術的構成は、耐
火原料４５〜８６重量％、熱硬化性樹脂１０〜２０重量
％、ピッチ粉末２〜５重量％、金属粉末１〜５重量％及
びロー石及びカイヤナイトの少なくとも１種１〜２５重
量％の組成物からなる窯炉々壁の熱間補修材にある。As a result of various studies and experiments in order to improve the various defects of conventional products as described above, the present inventors have found that in order to reduce the residual linear expansion/contraction rate of hot repair materials, we have developed an expansible material such as lowite, kyanite, etc. It has been successfully improved by adding raw materials to this type of repair material, and the technical composition of the present invention is as follows: 45-86% by weight of refractory raw material, 10-20% by weight of thermosetting resin, 2% by weight of pitch powder. 5% by weight of a metal powder, 1-5% by weight of a metal powder, and 1-25% by weight of at least one of loite and kyanite.
本発明において前記耐火原料とは、ＭｇＯ含有量８５重
量％以上の天然、海水又は電融ＭｇＯクリンカー、Ｃａ
Ｏ含有量７０重量％以下の天然又は合成ドロマイトクリ
ンカー、又はＡ１１０２含有量８０重量％以上の天然、
焼結又は電融クリンカーの少なくとも１種であり、該耐
火原料の粒度は１０ｍｍ以下とする。In the present invention, the refractory raw material is natural, seawater or fused MgO clinker with an MgO content of 85% by weight or more, Ca
Natural or synthetic dolomite clinker with an O content of 70% by weight or less, or natural with an A1102 content of 80% by weight or more,
It is at least one type of sintered or electrofused clinker, and the particle size of the refractory raw material is 10 mm or less.
前記熱硬化性樹脂はノボラック型フェノール樹脂であり
、その含有量か１０重量％未満ては補修しようとする高
温下の炉内に投入、施工した場合、本発明組成物の流動
性か不良であって、炉壁損傷部に流入、密着しない欠点
かあり、その含有量か２０重量％を超えると該樹脂に含
まれる溶剤の揮発に時間を要しく発煙時間が長い）、シ
かも経済的でない。The thermosetting resin is a novolac type phenolic resin, and if its content is less than 10% by weight, the fluidity of the composition of the present invention may be poor when it is placed in a furnace under high temperature to be repaired. However, if the content exceeds 20% by weight, it takes time for the solvent contained in the resin to volatilize, resulting in a long smoke generation time), which is also uneconomical.
ピッチ粉末は補修しようとする損傷部への本発明補修材
の接着性を良くするために添加するものであるが、２重
量％未満では接着効果か少なく、５重量％を超えて添加
すると施工時に発煙か多く、補修部分の硬化に時間を要
する。Pitch powder is added to improve the adhesion of the repair material of the present invention to the damaged area to be repaired, but if it is less than 2% by weight, the adhesion effect will be low, and if it is added in excess of 5% by weight, it will cause problems during construction. There is a lot of smoke and it takes time for the repaired area to harden.
金属粉末は補修部分の熱間強度を大とするために添加し
、Ａｆ、 Ｓｉ、 Ｍｇの少なくとも１種の金属粉末か
、またはこれら金属を含有する合金粉末を用いる。その
含有量が１重量％未満では、所望の熱間強度が得られず
、５重量％を超えても熱間強度は左程向上せず、コスト
高を招来するだけである。The metal powder is added to increase the hot strength of the repaired part, and at least one metal powder of Af, Si, and Mg, or an alloy powder containing these metals is used. If the content is less than 1% by weight, the desired hot strength cannot be obtained, and if the content exceeds 5% by weight, the hot strength will not be significantly improved and only increase the cost.
前述の如く、ロー石又は及びカイヤナイトは残存線膨張
収縮率を減少させるために添加するものであるか、その
添加量が１重量％未満ては所期の収縮を抑えることかで
きず、２５重量％を超えると補修部分の耐食性か劣化し
好ましくない。As mentioned above, lowite or kyanite is added to reduce the residual linear expansion and contraction rate, and if the amount added is less than 1% by weight, the desired contraction cannot be suppressed. If it exceeds % by weight, the corrosion resistance of the repaired part will deteriorate, which is not preferable.
実施例
（１１： ４００°Ｃ１３ｈｒｓ加熱品を切り出し試
料とし、１４００°Ｃ１２ｈｒｓ加熱後の試料の寸法を
測定した結果を示す。Example (11) A product heated at 400°C for 13 hours was cut out as a sample, and the results of measuring the dimensions of the sample after heating at 1400°C for 12 hours are shown.
（２）、溶銑予備処理炉でテスト。(2), tested in a hot metal pretreatment furnace.
“１又は２ｃｈ、 （チャージ）剥落率”とは、１
ｃｈ、後又は２ｃｈ 後で５０％以上剥落したもの。“1 or 2ch, (charge) peeling rate” means 1
Ch, after or 2ch After 50% or more of flaking off.
“剥落しないものの耐用性“とは、１又は２ｃｈ で
脱落しなかったものの面積率５０％以下になった回数で
示す。"Durability of products that do not fall off" refers to the number of times that the area ratio of the products that did not fall off reached 50% or less in 1 or 2 channels.
“判定結果”は“Ｏ”か効果あり、“◎′か効果大。The “judgment result” is “O” or effective, or “◎′” or great effect.
（３）組成成分は重量％て表記しである。(3) Composition components are expressed in weight%.
上記実施例は耐火原料として海水マグネシアについて説
明したか、他のＭｇＯ系クリンカー、ドロマイトクリン
カ−またはＡｌ２Ｏ２系クリンカーの少なくとも１種を
用いても、はり同等の結果が得られた。In the above examples, seawater magnesia was used as the refractory raw material, but equivalent results were obtained using at least one of other MgO-based clinkers, dolomite clinkers, and Al2O2-based clinkers.
また、金属粉末としてＳｉ、 Ｍｇ又はＡＡ、 Ｓｉ、
Ｍｇを含有する合金粉末を用いても、はり同様の結果
か得られた。In addition, as metal powder, Si, Mg or AA, Si,
Similar results were obtained using the alloy powder containing Mg.
（１）溶銑予備処理等の低温炉の炉壁補修材として特に
有効である。(1) Particularly effective as a furnace wall repair material for low-temperature furnaces for hot metal pretreatment, etc.
（２）製鋼炉の如き高温炉においても、ロー石及びカイ
ヤナイトの添加量を調整することに適用しうろことが認
められる。(2) Even in high-temperature furnaces such as steelmaking furnaces, it is recognized that the method can be applied to adjust the amounts of lowite and kyanite added.
Claims (4)
然、海水又は電融ＭｇＯクリンカー、ＣａＯ含有量７０
重量％以下の天然又は合成ドロマイトクリンカー、又は
Ａｌ＿２Ｏ＿３含有量８０重量％以上の天然、焼結又は
電融クリンカーの少なくとも１種からなり、１０６以下
の粒度である請求項１記載の窯炉々壁の熱間補修材。(2) The refractory raw material is natural, seawater or electrofused MgO clinker with an MgO content of 85% by weight or more, and a CaO content of 70%.
The furnace wall according to claim 1, comprising at least one of natural or synthetic dolomite clinker having an Al_2O_3 content of not more than 80% by weight, and having a particle size of not more than 106. Hot repair material.
である請求項１記載の窯炉々壁の熱間補修(3) Hot repair of a furnace wall according to claim 1, wherein the thermosetting resin is a novolac type phenolic resin.
種、またはこれら金属を含有する合金である１１求項１
記載の窯炉々壁の熱間補修材。(4) The metal powder is at least one of Al, Si, and Mg.
11 Item 1 which is a species or an alloy containing these metals
Hot repair material for the walls of the kiln mentioned above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2323129A JPH0791119B2 (en) | 1990-11-28 | 1990-11-28 | Hot repair material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2323129A JPH0791119B2 (en) | 1990-11-28 | 1990-11-28 | Hot repair material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04198063A true JPH04198063A (en) | 1992-07-17 |
| JPH0791119B2 JPH0791119B2 (en) | 1995-10-04 |
Family
ID=18151413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2323129A Expired - Lifetime JPH0791119B2 (en) | 1990-11-28 | 1990-11-28 | Hot repair material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0791119B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2484061C2 (en) * | 2007-05-18 | 2013-06-10 | Синагава Рифрэкториз Ко., Лтд. | Mix for hot repair of casting equipment |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101486792B1 (en) * | 2013-02-19 | 2015-01-29 | (주)포스코켐텍 | Basic hot reparing material |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5421410A (en) * | 1977-07-19 | 1979-02-17 | Nippon Steel Corp | Mud for closing tap hole of blast furnace |
-
1990
- 1990-11-28 JP JP2323129A patent/JPH0791119B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5421410A (en) * | 1977-07-19 | 1979-02-17 | Nippon Steel Corp | Mud for closing tap hole of blast furnace |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2484061C2 (en) * | 2007-05-18 | 2013-06-10 | Синагава Рифрэкториз Ко., Лтд. | Mix for hot repair of casting equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0791119B2 (en) | 1995-10-04 |
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