JPS63162580A - Limy coating material - Google Patents
Limy coating materialInfo
- Publication number
- JPS63162580A JPS63162580A JP61310061A JP31006186A JPS63162580A JP S63162580 A JPS63162580 A JP S63162580A JP 61310061 A JP61310061 A JP 61310061A JP 31006186 A JP31006186 A JP 31006186A JP S63162580 A JPS63162580 A JP S63162580A
- Authority
- JP
- Japan
- Prior art keywords
- coating material
- weight
- parts
- present
- calcareous
- 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
- 239000000463 material Substances 0.000 title claims description 34
- 239000011248 coating agent Substances 0.000 title claims description 33
- 238000000576 coating method Methods 0.000 title claims description 33
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 9
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 9
- 239000004571 lime Substances 0.000 claims description 9
- 239000005011 phenolic resin Substances 0.000 claims description 9
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 claims description 8
- 150000004996 alkyl benzenes Chemical class 0.000 claims description 7
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 14
- 239000002994 raw material Substances 0.000 description 10
- 230000014759 maintenance of location Effects 0.000 description 8
- 239000000395 magnesium oxide Substances 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 239000011449 brick Substances 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 239000003125 aqueous solvent Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 230000029087 digestion Effects 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000007665 sagging Methods 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- NIQCNGHVCWTJSM-UHFFFAOYSA-N Dimethyl phthalate Chemical compound COC(=O)C1=CC=CC=C1C(=O)OC NIQCNGHVCWTJSM-UHFFFAOYSA-N 0.000 description 2
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 description 2
- OCKPCBLVNKHBMX-UHFFFAOYSA-N butylbenzene Chemical compound CCCCC1=CC=CC=C1 OCKPCBLVNKHBMX-UHFFFAOYSA-N 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- 235000012255 calcium oxide Nutrition 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 2
- FLKPEMZONWLCSK-UHFFFAOYSA-N diethyl phthalate Chemical compound CCOC(=O)C1=CC=CC=C1C(=O)OCC FLKPEMZONWLCSK-UHFFFAOYSA-N 0.000 description 2
- 239000010459 dolomite Substances 0.000 description 2
- 229910000514 dolomite Inorganic materials 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 102000006463 Talin Human genes 0.000 description 1
- 108010083809 Talin Proteins 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000010775 animal oil Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- FBSAITBEAPNWJG-UHFFFAOYSA-N dimethyl phthalate Natural products CC(=O)OC1=CC=CC=C1OC(C)=O FBSAITBEAPNWJG-UHFFFAOYSA-N 0.000 description 1
- 229960001826 dimethylphthalate Drugs 0.000 description 1
- KWKXNDCHNDYVRT-UHFFFAOYSA-N dodecylbenzene Chemical compound CCCCCCCCCCCCC1=CC=CC=C1 KWKXNDCHNDYVRT-UHFFFAOYSA-N 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 229920003986 novolac Polymers 0.000 description 1
- WSVDSBZMYJJMSB-UHFFFAOYSA-N octadecylbenzene Chemical compound CCCCCCCCCCCCCCCCCCC1=CC=CC=C1 WSVDSBZMYJJMSB-UHFFFAOYSA-N 0.000 description 1
- VXNSQGRKHCZUSU-UHFFFAOYSA-N octylbenzene Chemical compound [CH2]CCCCCCCC1=CC=CC=C1 VXNSQGRKHCZUSU-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 229920001281 polyalkylene Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229920003987 resole Polymers 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
Landscapes
- Ceramic Products (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、タンディツシュ等の溶融金属容器の内張り材
として使用される石灰質コーティング材に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a calcareous coating material used as a lining material for molten metal containers such as tundishes.
従来の技術とその問題点
従来タンディツシュ内張り耐火物（以下コーティング材
とする）としては、マグネシア質のもの、アルミナ質の
もの等が使用されてきた。しかしながら冷延鋼板等の高
品位鋼の需要が高まるとともに、溶鋼中の非金属介在物
の除去に有効な石灰質クリンカーを含むコーティング材
、耐火煉瓦等の使用が試みられてきている。ところが石
灰は、水分と反応して大ぎな体積膨張を伴う消化（Ｃａ
Ｏ＋Ｈ２０→Ｃａ（○Ｈ） ２ ）を起こし易く、以下
の様な問題点をも併せ持っている。Conventional techniques and their problems Conventionally, magnesia-based materials, alumina-based materials, etc. have been used as tundish lining refractories (hereinafter referred to as coating materials). However, as the demand for high-grade steel such as cold-rolled steel sheets increases, attempts have been made to use coating materials, refractory bricks, etc. containing calcareous clinker, which are effective in removing nonmetallic inclusions in molten steel. However, lime undergoes digestion (Ca
O+H20→Ca(○H) 2 ) is likely to occur, and it also has the following problems.
１）煉瓦のような定形耐火物とした場合には、製造時に
空気中に含まれる水蒸気と反応して膨張、亀裂、欠落等
が発生する。1) When made into a shaped refractory such as a brick, it reacts with water vapor contained in the air during manufacturing, causing expansion, cracking, chipping, etc.
２）煉瓦として保存した場合には、粉化する恐れがある
。2) If stored as bricks, there is a risk of pulverization.
３）この定形耐火物をタンディツシュに内張り施工する
場合には、特殊な非水系のモルタルを必要とし、しかも
築炉後直ちに熱上げしなければ、空気中の水蒸気と反応
して崩壊する恐れがある。3) When lining a tundish with this shaped refractory, a special non-aqueous mortar is required, and if it is not heated immediately after construction, there is a risk that it will react with water vapor in the air and collapse. .
４）熱上げの為に使用するＣガス（コークス炉発生ガス
、主成分ＣＨ４、Ｈ２及びＨ２Ｏ＞の燃焼により発生す
る廃ガス中に多く含まれているＨ２０（７００！７ ／
Ｎ ｍ ３）によって、稼動面側から消化崩壊する恐
れがある。4) H20 (700!7 /
N m 3), there is a risk of digestion and collapse from the working surface side.
このため、施工が簡単であり且つ施工後の石灰の消化崩
壊の危険性がはるかに少い方法、即ち石灰質タリン力−
と非水系溶媒とからなる不定形石灰質耐火物を施工する
方法について検討がなされてきた。しかしながら、現状
では該方法のための適当な非水系溶媒がない。For this reason, there is a method that is easy to construct and has far less risk of lime digestion and disintegration after construction, namely, calcareous talin force.
Studies have been carried out on methods of constructing monolithic calcareous refractories made of amorphous limestone and a non-aqueous solvent. However, at present there is no suitable non-aqueous solvent for this method.
上記の如ぎ問題点を解消するために、石灰質クリンカー
を主骨材とし、非水系溶媒として水分含ＭＯ０２％以下
のグリコール類、ポリアルキレン、灯油、軽油、動植物
油等を含有するコーディング材が提案されている（特開
昭５８−１６１９７７号）。しかしながらこのコーディ
ング材を用いてこで塗り等を行なった場合、タレ落ち現
象が生じ、イの施工性は良好とは言えない。従って、上
記コーティング材では、非金属介在物源となるシリカ超
微粉を添加することによって、タレ落ち現象を防止或い
は低減しようとしているが、これは非金属介在物を無く
そうとする本来の目的とは相反したものである。In order to solve the above problems, a coating material has been proposed that uses calcareous clinker as the main aggregate and contains glycols, polyalkylene, kerosene, light oil, animal and vegetable oils, etc. with a water content of MO02% or less as non-aqueous solvents. (Japanese Unexamined Patent Publication No. 161977/1982). However, when this coating material is used for coating, etc., a phenomenon of dripping occurs, and the workability of A is not good. Therefore, in the above coating materials, attempts are made to prevent or reduce the sagging phenomenon by adding ultrafine silica powder, which is a source of nonmetallic inclusions, but this is not the original purpose of eliminating nonmetallic inclusions. are contradictory.
問題点を解決するための手段
本発明者は、上記従来技術の問題点に鑑みて鋭意研究を
中ねた結果、ジアルキルフタレートとアルキルベンゼン
とからなるウェッターを添加することによって、１）石
灰質クリンカーを主成分とするコーティング材に良好な
保形性及び付着性を与え得ること、２）該コーティング
材を用いてこで塗り等の内張り作業を行なってもタレ落
ち現傘が生じないこと、３）保形性を改善するため゛に
シリカ超微粉等の非金属介在物源を添加する必要がない
ので、該コーティング材が鋼中の不純物の除去を促進す
るという優れた特性を示すこと、更に４）該コーティン
グ材がその乾燥後に高強度を発揮することを見い出し、
本発明を完成した。Means for Solving the Problems As a result of intensive research in view of the above-mentioned problems of the prior art, the inventor of the present invention has found that: 1) Calcareous clinker is mainly Good shape retention and adhesion can be imparted to the coating material as a component, 2) Even if the coating material is used for lining work such as lining with a trowel, no sagging will occur; 3) Shape retention 4) the coating material exhibits excellent properties in promoting the removal of impurities in the steel, since there is no need to add a source of non-metallic inclusions such as ultrafine silica powder to improve the properties; We discovered that the coating material exhibits high strength after drying.
The invention has been completed.
即ち本発明は、遊離石灰を含む耐火原料１００重岳部、
粉末フェノールレジン０．１〜１５重量部及びジアルキ
ルフタレートとアルキルベンゼンとからなるウェッター
５〜４５重量部を含有する石灰質コーティング材に係る
。That is, the present invention provides a 100-layer refractory raw material containing free lime,
The present invention relates to a calcareous coating material containing 0.1 to 15 parts by weight of a powdered phenolic resin and 5 to 45 parts by weight of a wetter consisting of dialkyl phthalate and alkylbenzene.
耐火原料どしては、通常遊離石灰を含む耐火原料として
使用されるものが何れも使用でき、例えば、合成カルシ
アクリンカ−１合成マグネシアーカル−シアクリンカー
等のカルシア質クリンカー、合成ドロマイトクリンカ−
１天然ドロマイトクリンカ−等のドロマイト質クリンカ
ー等を挙げることができる。遊離石灰合間は特に制限さ
れないが、鋼中の非金属介在物の除去を考慮すると、通
常耐火原料全ｍの１０％以上程度とすればよい。また本
発明では、耐火原料として海水マグネシア、電融マグネ
シア、天然マグネシア等のマグネシア質クリンカー等を
添加してもよい。その配合量は特に制限されず、適宜選
択すればよい。耐火原料の粒径は特に制限されず、適宜
選択すればよいが、通常径３〜１＃程度のものを２０〜
４５重量％程度、径１Ｍ以下程度のものを２０〜４０車
硲％程度及び径０．１５ｍ以下程度のものを２０〜４０
重量％程度使用すればよい。As the refractory raw material, any of those normally used as refractory raw materials containing free lime can be used, such as calcia clinker such as synthetic calcia clinker-1 synthetic magnesia cal-shea clinker, synthetic dolomite clinker, etc.
1. Dolomitic clinkers such as natural dolomite clinker can be mentioned. The free lime interval is not particularly limited, but considering the removal of non-metallic inclusions in the steel, it may be normally set to about 10% or more of the total m of refractory raw material. Further, in the present invention, a magnesia clinker such as seawater magnesia, fused magnesia, natural magnesia, etc. may be added as a refractory raw material. The blending amount is not particularly limited and may be selected as appropriate. The particle size of the refractory raw material is not particularly limited and may be selected as appropriate, but the particle size of the refractory raw material is usually about 3 to 1 #2.
Approximately 45% by weight, 20-40% for diameters of 1M or less, and 20-40% for diameters of 0.15m or less.
It is sufficient to use about % by weight.
本発明では粉末フェノールレジンを添加することによっ
て、本発明コーティング材の施工及び加熱後の強度を向
上させる。粉末フェノールレジンとしては、通常のもの
が何れも使用でき、例えば、ノボラックタイプのもの、
レゾールタイプのｂの等を挙げることができる。その配
合量は、Ｍ離石灰を含む耐火原料１００重Ｍ部に対し通
常０．１〜１５重量部程度、好ましくは０．５〜１０重
に部程度とするのがよい。０．１重量部未満では、フェ
ノールレジンの添加効果が充分発揮されず、一方１５重
伍部を越えてもその効果は余り変らず不経済である。In the present invention, the strength of the coating material of the present invention after application and heating is improved by adding powdered phenol resin. Any ordinary powdered phenol resin can be used, such as novolac type,
Examples include resol type b. The blending amount is usually about 0.1 to 15 parts by weight, preferably about 0.5 to 10 parts by weight, per 100 parts by weight of the refractory raw material containing M free lime. If the amount is less than 0.1 part by weight, the effect of adding the phenol resin will not be sufficiently exhibited, while if it exceeds 15 parts by weight, the effect will not change much and it will be uneconomical.
本発明では、ジアルキルフタレートとアルキルベンゼン
とを併用したウェッターを使用することによって、作業
性が良好であり、且つ乾燥後の強度が高い石灰質コーテ
ィング材を得ることができる。即ち、ジアルキルフタレ
ートのみを使用すると、付着性、保形性等の作業性が悪
く、炉壁へのコーティングが困難になる。一方アルキル
ベンゼンのみを使用すると、作業性は良好であるが、フ
ェノールレジンがアルキルベンゼンに不溶であるため、
フェノールレジンの均一分散がなされず、加熱後の強度
発現が不充分となる。ジアルキルフタレートとアルキル
ベンゼンとの配合割合は特に制限されないが、通常重量
比で１＝９〜９：１程１復とすればよい。ジアルキルフ
タレ−］へとしては、公知のものが何れも使用でき、例
えば、ジメチルフタレート、ジエチルフタレート、ジブ
チルフタレート、ジアルキルフタレート、ジアルキルフ
タレート、ジオクチルフタレート等を挙げることができ
る。アルキルベンゼンとしても、公知の常温で液状のも
のが何れも使用でき、例えば、エチルベンぜン、ブヂル
ベンゼン、オクチルベンゼン、ドデシルベンゼン、オク
タデシルベンぜン等を挙げることができる。ウェッター
の配合量は、通常遊離石灰を含む耐火骨材ｉｏｏ＜ｍ部
に対して５〜４５小ｍ部程度とすればよい。５重量部未
満では、可塑性及び付着性が不充分となり、良好なコー
ティング層が得られない。一方４５小吊部を越えると、
ウェッター過多となって保形性が低下する。In the present invention, by using a wetter that uses a combination of dialkyl phthalate and alkylbenzene, it is possible to obtain a calcareous coating material that has good workability and high strength after drying. That is, if only dialkyl phthalate is used, workability such as adhesion and shape retention is poor, making it difficult to coat the furnace wall. On the other hand, if only alkylbenzene is used, workability is good, but since phenol resin is insoluble in alkylbenzene,
The phenol resin is not uniformly dispersed, resulting in insufficient strength development after heating. The blending ratio of dialkyl phthalate and alkylbenzene is not particularly limited, but the weight ratio may generally be about 1=9 to 9:1. As the dialkyl phthalate, any known one can be used, such as dimethyl phthalate, diethyl phthalate, dibutyl phthalate, dialkyl phthalate, dialkyl phthalate, dioctyl phthalate, and the like. Any known alkylbenzene that is liquid at room temperature can be used, such as ethylbenzene, butylbenzene, octylbenzene, dodecylbenzene, octadecylbenzene, and the like. The amount of the wetter to be blended is usually about 5 to 45 m parts per ioo<m parts of the refractory aggregate containing free lime. If it is less than 5 parts by weight, the plasticity and adhesion will be insufficient and a good coating layer will not be obtained. On the other hand, if you go over the 45th hanging part,
Shape retention deteriorates due to excessive wetter.
本発明石灰質コーティング材は、Ｍｆｌｉ石灰を含む耐
火原料、粉末フェノールレジン及びウェッターの所定量
を、常法に従って混合することによって製造される。The calcareous coating material of the present invention is produced by mixing predetermined amounts of a refractory raw material containing Mfli lime, a powdered phenol resin, and a wetter according to a conventional method.
本発明石灰質コーティング材を使用してタンディツシュ
等の溶融金属容器の内張り施工を行なうに当っては、通
常の施工方法が何れも採用でき、例えば、こて塗り、湿
式吹付、乾式吹付等を挙げることができる。When lining a molten metal container such as a tundish using the calcareous coating material of the present invention, any ordinary construction method can be used, such as troweling, wet spraying, dry spraying, etc. I can do it.
発明の効果
本発明石灰質コーティング材は、１）極めて良好な保形
性及び付着性を有するので、ごて塗り等の内張り作業を
行なってもタレ落ち現象が発生せず、２）鋼の非金属介
在物の除去に有効であり、３）乾燥後でも優れた強度を
示す。Effects of the Invention The calcareous coating material of the present invention has 1) extremely good shape retention and adhesion, so no sagging phenomenon occurs even when lining work such as troweling is performed, and 2) non-metallic coating of steel. It is effective in removing inclusions, and 3) shows excellent strength even after drying.
実 施 例
以下に実施例及び比較例を挙げ、本発明をより一層明瞭
なものとする。EXAMPLES Examples and comparative examples are given below to make the present invention even clearer.
実施例１〜６
第１表に示す配合割合（重量部）で、耐火骨材１００重
覆部に対して粉末フェノールレジン及びウェッターを添
加混合し、本発明コーティング材を製造した。得られた
コーティング材を、以下のような性能試験に供した。施
工性試験は、コーティング材を垂直な煉瓦面にごて塗り
施工し、その保形性及び付着性を調べた。またコーティ
ング材の稠度をＪＩＳＲ−２５０６に準じて測定した。Examples 1 to 6 Powdered phenol resin and wetter were added and mixed to 100 layers of refractory aggregate at the mixing ratios (parts by weight) shown in Table 1 to produce coating materials of the present invention. The obtained coating material was subjected to the following performance tests. In the workability test, the coating material was troweled onto a vertical brick surface, and its shape retention and adhesion were examined. Further, the consistency of the coating material was measured according to JISR-2506.
１０００℃界温試験は、垂直な煉瓦面に面積２００Ｘ２
００ｍ、厚さ２０ｍに塗布したコーティング材の表面を
プロパン−酸素バーナーで加熱し、３０分間で１０００
℃まで昇温した後、１時間保持して加熱中のコーティン
グ材の亀裂、剥離及び崩壊の有無を調べた。また曲げ強
さ及び圧縮強さは、ＪＩＳＲ−２５５３に準じて夫々測
定した。結果を第２表に示す。The 1000℃ ambient temperature test was performed using an area of 200 x 2 on a vertical brick surface.
The surface of the coating material applied to 00m and 20m thick was heated with a propane-oxygen burner, and the coating material was heated to 1000m in 30 minutes.
After raising the temperature to .degree. C., the coating material was held for 1 hour, and the presence or absence of cracks, peeling, and disintegration of the coating material during heating was examined. Moreover, bending strength and compressive strength were each measured according to JISR-2553. The results are shown in Table 2.
比較例１．２
シリカ超微粉を添加し、且つウェッターとしてエチレン
グリコール又はジエチレングリコールを使用する以外は
、実施例と同様にして第１表に示す配合割合で各原料を
混合し、従来の石灰質コーティング材を製造した。得ら
れたコーティング材を実施例と同様のごて塗り施工に供
したが、何れも付着性及び保形性が悪く、タレ落ちてし
まった。Comparative Example 1.2 The raw materials were mixed at the proportions shown in Table 1 in the same manner as in Example except that ultrafine silica powder was added and ethylene glycol or diethylene glycol was used as a wetter, and a conventional calcareous coating material was prepared. was manufactured. The obtained coating materials were subjected to troweling in the same manner as in the examples, but both had poor adhesion and shape retention and sagged.
第２表から、本発明コーティング材が従来のものよりも
優れた付着性及び保形性を有し、また焼成後の強度にも
優れていることが判る。Table 2 shows that the coating material of the present invention has better adhesion and shape retention than conventional coating materials, and also has superior strength after firing.
本発明品（実施例１）をタンディツシュに内張り施工し
、アルミニウムキルト！１ｉ３６０トンを処理して従来
のマグネシア質コーティング材との比較を行なった。本
発明品をコーティングした場合には、イマージョンノズ
ル内に付着する非金属介在物の量が、従来品の場合の１
／２に減少した。The product of the present invention (Example 1) was lined with a tundish, and an aluminum quilt was created! A comparison was made with a conventional magnesia-based coating material by processing 1i360 tons. When the product of the present invention is coated, the amount of nonmetallic inclusions that adhere to the inside of the immersion nozzle is reduced to 1% compared to the conventional product.
/2.
また鋼中の非金属介在物ｍも１／２に低減できた。In addition, nonmetallic inclusions m in the steel could be reduced to 1/2.
（以 上）(that's all)
Claims (1)
ノールレジン０．１〜１５重量部及びジアルキルフタレ
ートとアルキルベンゼンとからなるウェッター５〜４５
重量部を含有する石灰質コーティング材。(1) Wetter 5-45 consisting of 100 parts by weight of refractory aggregate containing free lime, 0.1-15 parts by weight of powdered phenol resin, and dialkyl phthalate and alkylbenzene.
Calcareous coating material containing parts by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61310061A JPS63162580A (en) | 1986-12-24 | 1986-12-24 | Limy coating material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61310061A JPS63162580A (en) | 1986-12-24 | 1986-12-24 | Limy coating material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63162580A true JPS63162580A (en) | 1988-07-06 |
Family
ID=18000694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61310061A Pending JPS63162580A (en) | 1986-12-24 | 1986-12-24 | Limy coating material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63162580A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0255270A (en) * | 1988-08-18 | 1990-02-23 | Nippon Steel Corp | Baking repairing material |
| JPH02239161A (en) * | 1989-03-09 | 1990-09-21 | Nkk Corp | Cao-based monolithic refractory |
-
1986
- 1986-12-24 JP JP61310061A patent/JPS63162580A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0255270A (en) * | 1988-08-18 | 1990-02-23 | Nippon Steel Corp | Baking repairing material |
| JPH0465029B2 (en) * | 1988-08-18 | 1992-10-16 | Shinnippon Seitetsu Kk | |
| JPH02239161A (en) * | 1989-03-09 | 1990-09-21 | Nkk Corp | Cao-based monolithic refractory |
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