JPH0333056A - Refractories - Google Patents

Refractories

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Publication number
JPH0333056A
JPH0333056A JP1166534A JP16653489A JPH0333056A JP H0333056 A JPH0333056 A JP H0333056A JP 1166534 A JP1166534 A JP 1166534A JP 16653489 A JP16653489 A JP 16653489A JP H0333056 A JPH0333056 A JP H0333056A
Authority
JP
Japan
Prior art keywords
refractories
refractory
chloride
parts
refractory aggregate
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
Application number
JP1166534A
Other languages
Japanese (ja)
Inventor
Yoji Azuma
洋史 東
Kenichi Samejima
鮫島 健一
Daijiro Nishimura
西村 大二郎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DIC Corp
Original Assignee
Dainippon Ink and Chemicals Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dainippon Ink and Chemicals Co Ltd filed Critical Dainippon Ink and Chemicals Co Ltd
Priority to JP1166534A priority Critical patent/JPH0333056A/en
Publication of JPH0333056A publication Critical patent/JPH0333056A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To obtain the refractories which cure fast even at a relatively low temp. and have excellent compressive strength in the initial stage of a drying stage by compounding ferric chloride, aluminum chloride or stannous chloride, refractory aggregate and resol type phenol. CONSTITUTION:The above refractories consist of at least one kind of the metal chlorides (A) among the ferric chloride, aluminum chloride or stannous chloride, the refractory aggregate (B) and the resol type phenolic resin (C). water or an org. solvent may be properly added to the refractories at need in order to sufficiently mix the above-mentioned (A), (B), (C). The acidic or neutral refractory aggregate is preferably used as the refractory aggregate (B) in order to use the above-mentioned refractories as shaped refractories. The above- mentioned refractories may be used as the shaped refractories simply by packing the refractories into a mold and molding the same under the pressure applied thereon. The press molding is executed usually under the temp. and pressure conditions of 15 to 30 deg.C and 0.8 to 1.5t/cm<2>.

Description

【発明の詳細な説明】 (産業上の利用分野〉 本発明は、耐火物に関する。[Detailed description of the invention] (Industrial application field) The present invention relates to refractories.

(従来の技術) 転炉、電気炉、取鍋、混銑車等の熔融金属の容器は、−
船釣にマグネシア、アル處す、炭素質等を主体とした耐
火性骨材と、レゾール型フェノール樹脂をバインダーと
から生産される。
(Prior art) Containers for molten metal such as converters, electric furnaces, ladles, and pig iron trucks are -
For boat fishing, it is produced from fire-resistant aggregate mainly made of magnesia, alkaline, carbonaceous, etc., and a resol type phenolic resin as a binder.

特にレゾール型フェノール樹脂の熱硬化性、高に広く使
用されている。
In particular, resol type phenolic resins are highly thermosetting and widely used.

ところがバインダーとして利用されるレゾール型フェノ
ール樹脂は、一般に比較的低温(50〜100℃)にお
ける熱硬化速度が緩慢であり、特に形状の大きい耐火物
においては乾燥工程の初期段階に於いて耐火物の素地の
軟化、膨れ、亀裂などの欠陥が度々見受けられる。
However, resol-type phenolic resins used as binders generally have a slow heat curing rate at relatively low temperatures (50 to 100°C), and in the early stage of the drying process, especially for large-sized refractories, Defects such as softening, blistering, and cracking of the base material are often observed.

乾燥工程における強度を高めた耐火物としては、特開昭
56−32367号公報にレゾール型フェノール樹脂に
亜鉛、ニッケル、コバルト、銅、マグネシウム、鉄等の
塩化物を添加した耐火物が開示されている。
As a refractory with increased strength in the drying process, JP-A-56-32367 discloses a refractory made by adding chlorides such as zinc, nickel, cobalt, copper, magnesium, iron, etc. to a resol type phenolic resin. There is.

(発明が解決しようとする課題) しかしながら、特開昭56−32367号公報に具体的
に示されている金属塩化物をレゾール型フェノール樹脂
に添加した耐火物は、比較的低温(約50〜100℃)
における硬化性が未だ緩慢であり、乾燥工程の初期段階
における強度が未だ充分に発現しなかった。
(Problem to be Solved by the Invention) However, the refractory material specifically shown in JP-A No. 56-32367, in which a metal chloride is added to a resol type phenolic resin, has a relatively low temperature (approximately 50 to 100 ℃)
The curing properties were still slow, and the strength at the initial stage of the drying process was not yet fully developed.

(課題を解決するための手段) 本発明者等は、上記実情に鑑み鋭意検討したところ、金
属塩化物の中でも特に塩化第二鉄、塩化アルミニウムお
よび塩化第一錫を用いた耐火物が、比較的低温において
も充分な硬化速度を有し、乾燥工程初期段階における圧
縮強度に優れ、膨れ、亀裂等の発生が少ない耐火物とな
ることを見い出し本発明を充放するに至った。
(Means for Solving the Problems) The inventors of the present invention have made extensive studies in view of the above circumstances, and have found that refractories using ferric chloride, aluminum chloride, and stannous chloride among metal chlorides are comparatively The present inventors have discovered that the refractory material has a sufficient curing rate even at extremely low temperatures, has excellent compressive strength in the initial stage of the drying process, and is less prone to blistering, cracking, etc., and has developed the present invention.

即ち本発明は、塩化第二鉄、塩化アルミニウムおよび塩
化第一錫から選ばれる少なくとも一種の金属塩化物(A
)、耐火性骨材(B)並びにレゾール型フェノール樹脂
(C)からなる耐火物を提供するものである。
That is, the present invention provides at least one metal chloride (A
), a refractory comprising a refractory aggregate (B) and a resol type phenolic resin (C).

本発明に係る金属塩化物(A)は、塩化第二鉄、塩化ア
ル柔ニウムおよび塩化第一錫であり、これらは無水物で
あってもよいし、水和物であってもよい。
The metal chlorides (A) according to the present invention are ferric chloride, aluminum chloride, and stannous chloride, and these may be anhydrous or hydrated.

本発明に係る耐火性骨材(B)としてはマグネシア、カ
ルシア、ドロマイト、アルξす、バイアルξす、炭化ケ
イ素、炭素質、シャモット、ジルコンおよびシリカ等の
公知慣用の塩基性、中性または酸性のいずれの骨材も使
用できる。
As the refractory aggregate (B) according to the present invention, known and commonly used basic, neutral or acidic aggregates such as magnesia, calcia, dolomite, aluminum ξ, vial ξ, silicon carbide, carbonaceous, chamotte, zircon and silica are used. Any of the following aggregates can be used.

本発明に係るレゾール型フェノール樹脂(C)とは、フ
ェノール類とホルムアルデヒド類とを塩基性触媒の存在
下で、反応させた樹脂であり、例の条件で反応せしめた
ものが挙げられ、中でも数平均分子i1300〜100
0のものが好ましい。
The resol type phenolic resin (C) according to the present invention is a resin obtained by reacting phenols and formaldehyde in the presence of a basic catalyst, including those reacted under the conditions of the example, among which several Average molecular i1300~100
0 is preferred.

本発明に係るレゾール型フェノール樹脂(C)の製造方
法は、上記条件で反応させることを除いて特に限定され
るものではなく、公知慣用の方法がいずれも採用できる
The method for producing the resol type phenolic resin (C) according to the present invention is not particularly limited, except that the reaction is carried out under the above conditions, and any known and commonly used method can be employed.

レゾール型フェノール樹脂(C)の製造の際に用いるこ
とのできるフェノール類としては例えば、フェノール、
クレゾール、キシレノール、レゾールシン、カテコール
、ハイドロキノン、クロロフェノール、ブロモフェノー
ル、ビスフェノールAおよびビスフェノールF等が、ホ
ルムアルデヒド類としては例えば、ホルムアルデヒド、
パラホルム等か、塩基性触媒としては水酸化ナトリウム
、炭酸ナトリウム、アンモニア、ジエチルアミン、トリ
エチルアミン等が挙げられる。
Examples of phenols that can be used in the production of the resol type phenolic resin (C) include phenol,
Cresol, xylenol, resorcin, catechol, hydroquinone, chlorophenol, bromophenol, bisphenol A, bisphenol F, etc., and formaldehydes include, for example, formaldehyde,
Examples of the basic catalyst include paraform, sodium hydroxide, sodium carbonate, ammonia, diethylamine, and triethylamine.

本発明の耐火物は、上記金属塩化物(A)、耐火骨材(
B)およびレゾール型フェノール樹脂(C)を適宜混合
、混練して調製することができる。その際の該(A)、
(B)および(C)の混合割合は特に限定されるもので
はないが、通常その耐火物はレゾール型フェノール樹脂
(C)  100重量部と金属塩化物(A)0.5〜1
20重量部と耐火性骨材(B)500〜5000重量部
とからなる。
The refractory of the present invention comprises the metal chloride (A), the refractory aggregate (
It can be prepared by appropriately mixing and kneading B) and the resol type phenolic resin (C). In that case, (A),
The mixing ratio of (B) and (C) is not particularly limited, but usually the refractory is 100 parts by weight of resol type phenolic resin (C) and 0.5 to 1 part by weight of metal chloride (A).
20 parts by weight and 500 to 5,000 parts by weight of the refractory aggregate (B).

該(A)、(B)および(C)の混合順序は特に限定さ
れることはなく、例えば■該(A)と(B)を予め充分
に混合した後、8’l (C)を混合する、■該(B)
と(C)を予め混合した後、該(A)を混合する方法等
が挙げられる。
The order of mixing (A), (B), and (C) is not particularly limited, and for example, (1) (A) and (B) are sufficiently mixed in advance, and then 8'l (C) is mixed. Do, ■Applicable (B)
Examples include a method of pre-mixing (C) and then mixing (A).

該(A)、(B)および(C)を充分に混合するために
、必要に応じて水、有機溶剤を適宜添加してもよい。
In order to sufficiently mix (A), (B) and (C), water and an organic solvent may be appropriately added as necessary.

この際用いることのできる有機溶剤としては、エチレン
グリコール、プロピレングリコール、ブチレンゲリコー
ル、エチレングリコールモノメチルエーテル、エチレン
グリコールジメチルエーテル、エチレングリコールジエ
チルエーテル、ジエチレングリコールモノメチルエーテ
ル、ジエチレングリコールジメチルエーテル、ジエチレ
ングリコールジエチルエーテル、メタノール、エタノー
ル、n−プロピルアルコール、イソプロピルアルコール
、アセトン、メチルエチルケトン、メチルイソブチルケ
トン、酢酸エチル、酢酸ブチル、トルエン、キシレン、
ターペン等が例示される。
Examples of organic solvents that can be used in this case include ethylene glycol, propylene glycol, butylene gellicol, ethylene glycol monomethyl ether, ethylene glycol dimethyl ether, ethylene glycol diethyl ether, diethylene glycol monomethyl ether, diethylene glycol dimethyl ether, diethylene glycol diethyl ether, methanol, ethanol, n-propyl alcohol, isopropyl alcohol, acetone, methyl ethyl ketone, methyl isobutyl ketone, ethyl acetate, butyl acetate, toluene, xylene,
Turpent etc. are exemplified.

本発明の耐火物は、目的必要に応して定型耐火物または
不定型耐火物のどちらの用途にも用いることができる。
The refractory of the present invention can be used as either a regular refractory or a monolithic refractory depending on the purpose.

本発明の耐火物を定型耐火物用として用いる際は、耐火
性骨材(B)として前記した酸性ないしは中性の耐火性
骨材を用いることが好ましく、中でも該レゾール型フェ
ノール樹脂(C)100重量部と、金属塩化物(A)2
〜100重量部と、酸性ないしは中性の耐火性骨材20
00〜3000重量部とからなるものが特に好ましい。
When using the refractory of the present invention for regular refractories, it is preferable to use the above-mentioned acidic or neutral refractory aggregate as the refractory aggregate (B), especially the resol type phenolic resin (C) 100 Weight parts and metal chloride (A) 2
~100 parts by weight and 20 parts by weight of acidic or neutral refractory aggregate
00 to 3000 parts by weight are particularly preferred.

本発明の耐火物を定型耐火物とするには、それを型に充
填し、圧力をかけて成形をすればよい。
In order to make the refractory of the present invention into a regular refractory, it may be filled into a mold and molded under pressure.

その際の温度、圧力は特に限定されるものではないが、
通常15〜30℃、0.8〜1.5 t /cm2の条
件でプレス成形が行われる。
The temperature and pressure at that time are not particularly limited, but
Press forming is usually performed under conditions of 15 to 30°C and 0.8 to 1.5 t/cm2.

こうして得られる定型耐火物は、乾燥硬化することによ
り不焼成の定型耐火物を得ることができる。その際の乾
燥硬化の条件は特に限定されないが、通常それは、50
〜100℃の雰囲気下2〜3時間保持した後、更に20
0〜300℃に昇温しその雰囲気下で20〜45時間保
持することにより行われる。又、焼成された耐火物が必
要な場合には、更に1200〜1500℃に昇温しその
雰囲気下で24〜48時間保持すればよい。一方、不定
型耐火物用として用いる際は、耐火骨材(B)として前
記した塩基性の耐火性骨材を用いることが好ましく、中
でも該レゾール型フェノール樹脂(C)100重量部と
金属塩化物(A)3〜60重量部と、塩基性耐火性骨材
670〜2000重量部とからなるものが特に好ましい
By drying and curing the thus obtained regular refractory, an unfired regular refractory can be obtained. The conditions for drying and curing at that time are not particularly limited, but usually it is 50%
After holding for 2 to 3 hours in an atmosphere of ~100°C,
This is carried out by raising the temperature to 0 to 300°C and holding it in that atmosphere for 20 to 45 hours. If a fired refractory is required, the temperature may be further raised to 1200 to 1500°C and held in that atmosphere for 24 to 48 hours. On the other hand, when used for monolithic refractories, it is preferable to use the above-mentioned basic fire-resistant aggregate as the fire-resistant aggregate (B), among which 100 parts by weight of the resol type phenolic resin (C) and metal chloride. Particularly preferred is one comprising 3 to 60 parts by weight of (A) and 670 to 2,000 parts by weight of basic fire-resistant aggregate.

上記!戒からなる耐火物は、定型耐火物用の様に圧力を
かけて成形して定型耐火物とした後、そのまま不焼成の
定型耐火物として用いてもよいし、焼成して用いてもよ
いが、常温において短時間で硬化でき、硬化後の強度や
加熱時の施工体の保型力が充分であるので通常加熱して
硬化させるのが容易でない用途に用いられる。例えばそ
の用途としては前記定型耐火物を用いて作られる転炉、
電気炉、取鍋、混銑車等の溶融金属容器の冷却時の補修
等が挙げられる。
the above! The refractories made of pre-coated refractories may be molded under pressure to form a regular refractory as for regular refractories, and then used as is as an unfired regular refractory, or they may be used after firing. It can be cured in a short time at room temperature, and has sufficient strength after curing and ability to retain the shape of the construction body when heated, so it is used in applications where it is not easy to cure by heating. For example, its uses include converters made using the above-mentioned regular refractories;
Examples include repairs during cooling of molten metal containers such as electric furnaces, ladles, and pig iron mixers.

上記組成からなる不定型の用途に適した耐火物は、常温
硬化性を有しているので施工現場で混合、混練して用い
ることが好ましい。
Since the refractory having the above composition and suitable for amorphous uses has room temperature curability, it is preferable to mix and knead the refractory at the construction site.

その施工方法は特に制限されるものではないが、例えば
流し込み施工、振動成形施工、ラミング(スタンプも含
む)施工などが挙げられ、補修箇所の大小、形状により
適宜選択して施行を行えばよい。
The construction method is not particularly limited, but examples include pouring construction, vibration molding construction, ramming (including stamping) construction, etc., and the method may be selected as appropriate depending on the size and shape of the repaired area.

次に本発明を実施例により説明するが、以下「部」は「
重量部」を、「%」は「重量%」を意味するものとする
Next, the present invention will be explained with reference to Examples.
"parts by weight" and "%" mean "% by weight".

製造例1 レゾール樹脂の製造 フェノール100部、37%ホルマリン86部、48%
苛性ソーダ水溶液1.8部をフラスコに投入し、90℃
で3時間反応させた後50%p−1−ルエンスルホン酸
水溶液を加えpH5に調整後、遊離のフェノール、遊離
のホルムアルデヒド、遊離水を除去しレゾール樹脂(1
)を得た。
Production Example 1 Production of resol resin Phenol 100 parts, 37% Formalin 86 parts, 48%
Pour 1.8 parts of caustic soda aqueous solution into a flask and heat to 90°C.
After reacting for 3 hours with 50% p-1-luenesulfonic acid aqueous solution and adjusting the pH to 5, free phenol, free formaldehyde, and free water were removed and the resol resin (1
) was obtained.

レゾール樹脂(1)は濃度78%、粘度2.000cp
s 、 pH5、数平均分子量400、固定炭素45%
であった。
Resol resin (1) has a concentration of 78% and a viscosity of 2.000 cp.
s, pH 5, number average molecular weight 400, fixed carbon 45%
Met.

製造例2(同上) フェノール100部、37%ホルマリン86部、48%
苛性ソーダ水溶液1.8部をフラスコに投入し、90℃
で5時間反応させた後、50%p−トルエンスルホン酸
水溶液を加えpH5に調整後、遊離のフェノール、遊離
のホルムアルデヒド、遊離水を除去した。これにエチレ
ングリコールを加えレゾール樹脂(2〉を得た。
Production example 2 (same as above) phenol 100 parts, 37% formalin 86 parts, 48%
Pour 1.8 parts of caustic soda aqueous solution into a flask and heat to 90°C.
After reacting for 5 hours, 50% p-toluenesulfonic acid aqueous solution was added to adjust the pH to 5, and free phenol, free formaldehyde, and free water were removed. Ethylene glycol was added to this to obtain resol resin (2).

レゾール樹脂(2)は、濃度78%、粘度10000c
ps 、 pH5、数平均分子i1800.固定炭素4
7%であった。
Resol resin (2) has a concentration of 78% and a viscosity of 10000c.
ps, pH 5, number average molecular i1800. fixed carbon 4
It was 7%.

製造例3 (同上) フェノール100部、37%ホルマリン86部、48%
苛性ソーダ水溶液1.8部をフラスコに投入し、80℃
で5時間反応させた後50%p−)ルエンスルホン酸水
溶液を加えpH5に調整し、遊離のフェノール、ホルム
アルデヒド及び水を除去し、エチルセロソルブで希釈し
レゾール樹脂(3)を得た。レゾール樹脂(3)は、濃
度60%、粘度100cps 、 pH5、数平均分子
ff1300、固定炭素35%であった。
Production example 3 (same as above) 100 parts of phenol, 37% formalin 86 parts, 48%
Pour 1.8 parts of caustic soda aqueous solution into a flask and heat to 80°C.
After reacting for 5 hours, a 50% p-)luenesulfonic acid aqueous solution was added to adjust the pH to 5, free phenol, formaldehyde and water were removed, and the mixture was diluted with ethyl cellosolve to obtain a resol resin (3). The resol resin (3) had a concentration of 60%, a viscosity of 100 cps, a pH of 5, a number average molecular weight of 1300, and a fixed carbon of 35%.

実施例1〜5 アルξす骨材(粗粒20部、中粒25部、細粒30部、
微粒10部)85部、黒鉛15部に第1表に示す如き塩
化第二鉄・六水和物各部混合分散し、更にレゾール樹脂
(1)または(2)を各部添加し十分に混練し坏土を得
た。
Examples 1 to 5 Aggregates (20 parts of coarse grains, 25 parts of medium grains, 30 parts of fine grains,
Each part of ferric chloride hexahydrate as shown in Table 1 was mixed and dispersed in 85 parts of fine particles (10 parts) and 15 parts of graphite, and further each part of resol resin (1) or (2) was added and thoroughly kneaded. I got soil.

次いでその坏土を金型に型込めして常温、圧力lt/a
s”で、直径25mmの円柱状テストースを作成した。
Next, the clay is put into a mold and kept at room temperature and pressure lt/a.
A cylindrical test piece with a diameter of 25 mm was prepared.

実施例6 実施例3の塩化第二鉄・六水和物を塩化第二スズ・二水
和物に置換した以外は実施例1と同一の方法で坏土を得
、テストピースを作成した。
Example 6 A clay was obtained in the same manner as in Example 1, except that ferric chloride hexahydrate in Example 3 was replaced with stannic chloride dihydrate, and a test piece was prepared.

比較例1 実施例3の塩化第二鉄・六水和物を塩化第一鉄・四水和
物に置換した以外は同一の方法で坏土を得、テストピー
スを作成した。
Comparative Example 1 A clay was obtained and a test piece was prepared in the same manner as in Example 3 except that ferrous chloride hexahydrate was replaced with ferrous chloride tetrahydrate.

実施例1〜6および比較例1で作成したテストピースを
70℃で5時間または、150℃で5時間乾燥させただ
けの不焼成のテストピース、あるいはX000℃で2時
間焼成したテストピースにつき、圧縮強度、見掛は比重
および気孔率を測定した。その結果を第1表に示した。
For unfired test pieces prepared by drying the test pieces prepared in Examples 1 to 6 and Comparative Example 1 at 70 °C for 5 hours or at 150 °C for 5 hours, or for test pieces fired at X000 °C for 2 hours, Compressive strength, apparent specific gravity and porosity were measured. The results are shown in Table 1.

尚試験方法は以下の通り。The test method is as follows.

圧縮強度:常温においてアムスラー試験機を用いテスト
ピース円柱方向に圧縮した際の 圧力の最高値を測定した。
Compressive strength: The highest value of pressure was measured when the test piece was compressed in the cylindrical direction using an Amsler tester at room temperature.

見掛は比重:テストピースを用いJIS R2205に
基いて測定した。
Apparent specific gravity: Measured using a test piece based on JIS R2205.

気孔率: 同上。Porosity: Same as above.

/ 実施例7〜10 マグネシア骨材(粗粒と中粒の合計55部、細粒と微粒
の合計40部)95部、黒鉛5部に第1表に示す如き塩
化第二鉄・六水和物各部を混合分散し、更に製造例3の
レゾール樹脂(3)を添加し十分に混練し、モルタルを
得た。
/ Examples 7 to 10 95 parts of magnesia aggregate (55 parts in total of coarse grains and medium grains, 40 parts in total of fine grains and fine grains), 5 parts of graphite, and ferric chloride hexahydrate as shown in Table 1. Each part of the product was mixed and dispersed, and the resol resin (3) of Production Example 3 was further added and thoroughly kneaded to obtain a mortar.

実施例11 実施例1の塩化第二鉄・6水和物を塩化第一スズ・二水
和物に置換した以外は実施例7と同一の方法でモルタル
を得た。
Example 11 A mortar was obtained in the same manner as in Example 7 except that ferric chloride hexahydrate in Example 1 was replaced with stannous chloride dihydrate.

比較例2 実施例1から塩化第二鉄・六水和物を除去した以外は実
施例7と同一の方法でモルタルを得た。
Comparative Example 2 A mortar was obtained in the same manner as in Example 7 except that ferric chloride hexahydrate was removed from Example 1.

比較例3 実施例7の塩化第二鉄・六水和物を塩化第一鉄・四水和
物に置換した以外は実施例7と同一の方法でモルタルを
得た。
Comparative Example 3 A mortar was obtained in the same manner as in Example 7 except that ferric chloride hexahydrate in Example 7 was replaced with ferrous chloride tetrahydrate.

実施例7〜11および比較例2〜3で得たモルタルを実
施例1と同様な条件でプレス底形し、テストピースを得
、焼成あるいは不焼成のテストピ・−スにつぎ、前記し
たのと同様の方法で圧縮強度、見掛は比重および気孔率
を測定した。その結果を第2表に示した。
The mortars obtained in Examples 7 to 11 and Comparative Examples 2 to 3 were press-bottomed under the same conditions as in Example 1 to obtain test pieces. Compressive strength, apparent specific gravity and porosity were measured in the same manner. The results are shown in Table 2.

また、実施例7〜11のテストピースの常温く25℃〉
における硬化性を見るためにスプリング式硬さ試験機シ
ョアーA型またはD型を用いて、プレス成形してテスト
ピースを得てから3時間後、8時間後、24時間後の表
面硬度を各々測定した。
In addition, the test pieces of Examples 7 to 11 at room temperature of 25°C>
In order to check the hardenability of the test pieces, we used a spring-type hardness tester, Shore A type or D type, to measure the surface hardness 3 hours, 8 hours, and 24 hours after press molding to obtain a test piece. did.

その結果もあわせて第2表に示した。The results are also shown in Table 2.

ノ / / (発明の効果) 本発明のレゾール型フェノール樹脂と耐火性骨材と特定
の金属塩化物からなる耐火物は、実施例から明らかな様
に比較的低温における硬化性が優れているので、乾燥工
程初期において耐火物の軟化、膨れ、亀裂などの欠陥が
起こりに<<、高強度である。中でも、塩基性の耐火性
骨材を用いた耐火物は、常温で短時間で硬化し、充分な
強度を発現できるという優れた効果を奏するものである
/ / (Effects of the Invention) As is clear from the examples, the refractory made of the resol-type phenolic resin, fire-resistant aggregate, and specific metal chloride of the present invention has excellent curing properties at relatively low temperatures. , defects such as softening, blistering, and cracking of the refractory occur at the early stage of the drying process. Among these, refractories using basic refractory aggregates have excellent effects in that they harden in a short time at room temperature and can develop sufficient strength.

代 理 人teenager Reason Man

Claims (5)

【特許請求の範囲】[Claims] 1.塩化第二鉄、塩化アルミニウムおよび塩化第一錫か
ら選ばれる少なくとも一種の金属塩化物(A)、耐火性
骨材(B)並びにレゾール型フェノール樹脂(C)から
なる耐火物。
1. A refractory comprising at least one metal chloride (A) selected from ferric chloride, aluminum chloride, and stannous chloride, a refractory aggregate (B), and a resol type phenolic resin (C).
2.耐火性骨材(B)が、酸性または中性の耐火性骨材
である請求項1記載の耐火物。
2. The refractory according to claim 1, wherein the refractory aggregate (B) is an acidic or neutral refractory aggregate.
3.耐火性骨材(B)が、塩基性耐性骨材である請求項
1記載の耐火物。
3. The refractory according to claim 1, wherein the refractory aggregate (B) is a basic resistant aggregate.
4.金属塩化物(A)の使用量が、レゾール型フェノー
ル樹脂100重量部に対して2〜120重量部である請
求項2記載の耐火物。
4. The refractory according to claim 2, wherein the amount of the metal chloride (A) used is 2 to 120 parts by weight based on 100 parts by weight of the resol type phenolic resin.
5.金属塩化物(A)の使用量が、レゾール型フェノー
ル樹脂100重量部に対して3〜60重量部である請求
項3記載の耐火物。
5. The refractory according to claim 3, wherein the amount of the metal chloride (A) used is 3 to 60 parts by weight based on 100 parts by weight of the resol type phenolic resin.
JP1166534A 1989-06-30 1989-06-30 Refractories Pending JPH0333056A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1166534A JPH0333056A (en) 1989-06-30 1989-06-30 Refractories

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1166534A JPH0333056A (en) 1989-06-30 1989-06-30 Refractories

Publications (1)

Publication Number Publication Date
JPH0333056A true JPH0333056A (en) 1991-02-13

Family

ID=15833076

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1166534A Pending JPH0333056A (en) 1989-06-30 1989-06-30 Refractories

Country Status (1)

Country Link
JP (1) JPH0333056A (en)

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