JPH03126667A - Material for refractory - Google Patents
Material for refractoryInfo
- Publication number
- JPH03126667A JPH03126667A JP1263767A JP26376789A JPH03126667A JP H03126667 A JPH03126667 A JP H03126667A JP 1263767 A JP1263767 A JP 1263767A JP 26376789 A JP26376789 A JP 26376789A JP H03126667 A JPH03126667 A JP H03126667A
- Authority
- JP
- Japan
- Prior art keywords
- self
- hardening
- thermosetting resin
- carbon powder
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 title abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229920005989 resin Polymers 0.000 claims abstract description 22
- 239000011347 resin Substances 0.000 claims abstract description 22
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 20
- 239000011230 binding agent Substances 0.000 claims abstract description 13
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract 3
- 239000011819 refractory material Substances 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 230000009970 fire resistant effect Effects 0.000 claims 2
- 238000002156 mixing Methods 0.000 abstract description 8
- 239000005011 phenolic resin Substances 0.000 abstract description 3
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 abstract description 2
- 229920001568 phenolic resin Polymers 0.000 abstract description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 abstract 2
- 239000002994 raw material Substances 0.000 abstract 2
- 230000001105 regulatory effect Effects 0.000 abstract 2
- 150000001299 aldehydes Chemical class 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 229910002804 graphite Inorganic materials 0.000 abstract 1
- 239000010439 graphite Substances 0.000 abstract 1
- 239000000395 magnesium oxide Substances 0.000 abstract 1
- 150000002989 phenols Chemical class 0.000 abstract 1
- 239000011449 brick Substances 0.000 description 10
- 239000002184 metal Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- 239000000843 powder Substances 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910021383 artificial graphite Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- -1 ferrous metals Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000010903 husk Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229910021382 natural graphite Inorganic materials 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Compositions Of Oxide Ceramics (AREA)
- Ceramic Products (AREA)
Abstract
Description
本発明は、製鉄、製鋼、その似非鉄金属等の炉の炉材や
ノズル等に使用される耐火物用材料に関するものである
。The present invention relates to a refractory material used for furnace materials, nozzles, etc. of furnaces for iron manufacturing, steel manufacturing, and similar non-ferrous metals.
溶鋼等の溶湯が接触する炉材やノズルなどのしン〃にあ
って、溶湯による溶損を最小限にして耐用回数を増大す
るために、溶湯に対する濡れが小さいレンガが要望され
ており、このようなレンガとして従来から炭素質レンガ
が使用されている。
炭素質のレンガは炭素質に上って溶湯に対する濡れを小
さくしたものである。
そしてこの炭素質レンガの製造の材料となる耐火物材料
は、炭素粉末と耐火骨材及びバインダーとなる熱硬化性
樹脂を配合して、これらを混合することによって調製さ
れている。In order to minimize corrosion damage caused by molten metal and increase its service life in areas such as furnace materials and nozzles that come into contact with molten metal, there is a need for bricks that are less wettable with molten metal. Carbonaceous bricks have traditionally been used as such bricks. Carbonaceous bricks are made of carbonaceous material and have reduced wettability to molten metal. The refractory material used to manufacture this carbonaceous brick is prepared by blending carbon powder, refractory aggregate, and a thermosetting resin as a binder, and then mixing these.
しかし、炭素粉末は耐火骨材や熱硬化性樹脂に対する混
合性が悪いために、多量の炭素粉末を配合する場合には
多量の溶剤を混ぜて炭素粉末の混線性を高めてやる必要
があるが、このように多量の溶剤を配合して耐火物材料
を調製すると、この耐火物材料を成形してレンガを作成
する際に多量の溶剤が揮発し、レンガの気孔率が高くな
って逆に溶湯に対する耐食性や耐摩耗性等が低下してし
まうことになるものであった。
また、バインダーとして使用される熱硬化性樹脂は、粒
度のばらつきが大きい耐火骨材と均一に混合するために
液状で使用され、耐火物材料は粘度の高い混練物として
調製されている。従って配合の際の混線で耐火物材料中
に空気が混入すると抜けにくく、レンガを成形する際に
もこの空気が混入されるおそれがある。このように成形
時に空気が混入していると、成形圧を加えた際は空気は
圧縮されるが成形圧を解除すると空気は元の体積に戻る
ためにレンガにクラックが生じるおそれがあり、このク
ラックは加熱乾燥・硬化時などに拡大されてレンがとし
て使用できなくなるおそれがあった。また熱硬化性樹脂
が液状であるために、レンガへの成形後の乾燥や硬化の
際ｒこ溶剤やモノマー等が揮散して割れを生じたり、場
合によっては急激なガスの発生で爆裂を生じたりするお
それもあった。
本発明は上記の点に鑑みて為されたものであり、溶剤を
多量に用いる必要なく炭素質粉末を均一に配合すること
ができ、また熱硬化性樹脂バインダーとじて液状のもの
を用いる必要なく耐火骨材を均一に配合することができ
る耐火物材料を提供することを目的とするものである。However, carbon powder has poor miscibility with refractory aggregates and thermosetting resins, so when blending a large amount of carbon powder, it is necessary to mix a large amount of solvent to increase the crosstalk of the carbon powder. If a refractory material is prepared by blending a large amount of solvent in this way, a large amount of the solvent will volatilize when the refractory material is molded to make bricks, increasing the porosity of the bricks and conversely causing the molten metal to evaporate. This resulted in a decrease in corrosion resistance, wear resistance, etc. Furthermore, the thermosetting resin used as a binder is used in liquid form in order to uniformly mix it with the refractory aggregate, which has a large variation in particle size, and the refractory material is prepared as a highly viscous kneaded material. Therefore, if air gets mixed into the refractory material due to mixing during mixing, it will be difficult to escape, and there is a risk that this air will get mixed in when forming bricks. If air is mixed in during molding, the air will be compressed when molding pressure is applied, but when molding pressure is removed, the air will return to its original volume, which may cause cracks in the brick. There was a risk that the cracks would become enlarged during heat drying and curing, making the resin unusable. Additionally, since the thermosetting resin is in a liquid state, during drying and curing after being molded into bricks, solvents and monomers may volatilize and cause cracks, and in some cases, the sudden generation of gas may cause explosions. There was also a risk that it would happen. The present invention was made in view of the above points, and it is possible to uniformly blend carbonaceous powder without using a large amount of solvent, and there is no need to use a liquid thermosetting resin binder. The object of the present invention is to provide a refractory material in which refractory aggregate can be uniformly blended.
本発明に係る耐火物材料は、炭素粉末が熱硬化性樹脂バ
インダーで固結された自硬化性炭素粉粒体と、耐火骨材
が熱硬化性樹脂バインダーと複合された自硬化性耐火骨
材粒とが配合されて威ることを特徴とするものであり、
以下本発明の詳細な説明する。
自硬化性炭素粉粒体は炭素粉末を熱硬化性樹脂をバイン
ダーとして固結させることによって、すなわち炭素粉末
粒子を熱硬化性樹脂で薄く被覆すると共にこの熱硬化性
樹脂を介して集結させることによって炭素粉末を固結さ
せで、固形の粉粒体として調Ｉｔ′！−れているもので
ある。ここで、炭素粉末としては、炭素質の粉末であれ
ば一般に使用することができるものであり、例えば天然
黒鉛、人造黒鉛、カーボンブラック、コークス粉、木炭
粉、籾殻炭などを使用することができ、これらはａ−
一種単独でもあるいは複数種混合してもいずれでも使用
することができる、炭素粉末の粒径は特に限定されるも
のではないが、１〜２００μ論程度が好ましい。またバ
インダーとして用いる熱硬化性樹脂も特に限定されるも
のではないが、加熱等することによって硬化する、すな
わち自硬化性を有する熱硬化性樹脂の半硬化状態（いわ
ゆるＢステージ状態）のものを使用するものであり、熱
硬化性樹脂のなかでもフェノール樹脂、メラミン樹脂、
７ラン樹脂などが好適である。
自硬化性炭素粉粒体を作成するにあたっては、炭素粉末
と熱硬化性樹脂とを加圧ニーグーなどのニーダ−に投入
し、これを水やアルコールなどの溶剤等とともに混練し
たのちに混練物をニーダーから取り出し、これを押出し
成形機に投入してさらに混練しつつ押出して押出し成形
駒を□乾燥し、そしてこれを粉砕することによっておこ
なうことができる。The refractory material according to the present invention includes a self-hardening carbon powder in which carbon powder is solidified with a thermosetting resin binder, and a self-hardening refractory aggregate in which a refractory aggregate is composited with a thermosetting resin binder. It is characterized by being blended with grains,
The present invention will be explained in detail below. Self-curing carbon powder is produced by solidifying carbon powder using a thermosetting resin as a binder, that is, by coating carbon powder particles thinly with a thermosetting resin and consolidating them via the thermosetting resin. By solidifying the carbon powder, it is prepared as a solid powder. - It is something that is Here, the carbon powder can generally be used as long as it is a carbonaceous powder, such as natural graphite, artificial graphite, carbon black, coke powder, charcoal powder, rice husk charcoal, etc. , these can be used either singly or in combination. The particle size of the carbon powder is not particularly limited, but is preferably about 1 to 200 microns. Furthermore, the thermosetting resin used as the binder is not particularly limited, but a semi-cured thermosetting resin (so-called B-stage state) that hardens by heating etc., that is, has self-curing properties, is used. Among thermosetting resins, phenolic resin, melamine resin,
7 run resin etc. are suitable. To create self-hardening carbon powder, carbon powder and thermosetting resin are put into a kneader such as a pressurized kneader, and after kneading this with a solvent such as water or alcohol, the kneaded material is mixed. This can be carried out by taking the mixture out of the kneader, putting it into an extrusion molding machine, extruding it while further kneading it, drying the extrusion molded pieces, and pulverizing them.
Claims (2)
自硬化性炭素粉粒体と、耐火骨材が熱硬化性樹脂バイン
ダーと複合された自硬化性耐火骨材粒とが配合されて成
ることを特徴とする耐火物用材料。(1) A mixture of self-hardening carbon granules in which carbon powder is solidified with a thermosetting resin binder and self-hardening fire-resistant aggregate particles in which fire-resistant aggregate is composited with a thermosetting resin binder. A refractory material characterized by:
インダーの含有量が異なることを特徴とする請求項１に
記載の耐火物用材料。(2) The refractory material according to claim 1, wherein the self-hardening carbon powder and the self-hardening refractory aggregate have different binder contents.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26376789A JP3151202B2 (en) | 1989-10-09 | 1989-10-09 | Refractory materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26376789A JP3151202B2 (en) | 1989-10-09 | 1989-10-09 | Refractory materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03126667A true JPH03126667A (en) | 1991-05-29 |
| JP3151202B2 JP3151202B2 (en) | 2001-04-03 |
Family
ID=17394000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26376789A Expired - Fee Related JP3151202B2 (en) | 1989-10-09 | 1989-10-09 | Refractory materials |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3151202B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110124302A (en) * | 2019-06-13 | 2019-08-16 | 泉州港花游艺用品工贸有限公司 | A kind of explosion-proof mahjong and manufacturing process |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102099864B1 (en) | 2018-09-04 | 2020-04-13 | (주)나우시스템즈 | Metallic foreign components detecting sensor combinied with magnet and metallic foreign components detecting apparatus including the sensor |
-
1989
- 1989-10-09 JP JP26376789A patent/JP3151202B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110124302A (en) * | 2019-06-13 | 2019-08-16 | 泉州港花游艺用品工贸有限公司 | A kind of explosion-proof mahjong and manufacturing process |
| CN110124302B (en) * | 2019-06-13 | 2024-05-14 | 泉州港花游艺用品工贸有限公司 | Explosion-proof mahjong and manufacturing process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3151202B2 (en) | 2001-04-03 |
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|---|---|---|---|
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