JP7105929B2 - 耐火性製品、この製品を製造するためのバッチ、この製品を製造する方法、及びこの製品の使用 - Google Patents
耐火性製品、この製品を製造するためのバッチ、この製品を製造する方法、及びこの製品の使用 Download PDFInfo
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- JP7105929B2 JP7105929B2 JP2020569893A JP2020569893A JP7105929B2 JP 7105929 B2 JP7105929 B2 JP 7105929B2 JP 2020569893 A JP2020569893 A JP 2020569893A JP 2020569893 A JP2020569893 A JP 2020569893A JP 7105929 B2 JP7105929 B2 JP 7105929B2
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Description
耐火性製品が、以下の酸化物がそれぞれ以下の割合で存在する化学組成:
MgO:少なくとも92質量%、
Al2O3:1.5~7質量%、
Fe2O3:3質量%未満、
CaO+SiO2:1~3質量%
を有すること;
耐火性製品が、以下の特徴:
被覆粒子が、少なくとも2mmの粒径を有すること、
被覆粒子が、マグネシアからなり、その表面は、少なくとも部分的にマグネシアスピネル被覆を有すること
を備えた被覆粒子を含むこと;
を備えた、耐火性製品が提供される。
MgO:92~97.5質量%
Al2O3:1.5~7質量%
Fe2O3:3質量%未満
CaO+SiO2:1~3質量%
を有することが意図されている。
MgO:92~96質量%
Al2O3:1.5~5質量%
Fe2O3:2質量%未満
CaO+SiO2:1~3質量%
を有することが意図されている。
MgO:93~96質量%
Al2O3:1.5~3.5質量%
Fe2O3:1質量%未満
CaO+SiO2:1~3質量%
を有することが意図されている。
MgO:93.5~96質量%
Al2O3:2~3.5質量%、
Fe2O3:1質量%未満
CaO+SiO2:1~3質量%
を有することが意図されている。
マグネシア粒子からなる第1の原料成分と、
以下の特徴:
被覆粒子が、少なくとも2mmの粒径を有すること、
被覆粒子が、マグネシアからなり、その表面が、少なくとも部分的にアルミナ被覆を有すること
を備えた被覆粒子からなる第2の原料成分と
を含む、バッチである。
本発明によるバッチを用意する工程、
バッチを成形して、成形された未焼成の耐火性製品にする工程、
成形された未焼成の耐火性製品を焼成して、成形されて焼成された耐火性セラミック製品にする工程。
第1の実施例により、まず、焼結マグネシア粒子からの第1の原料成分と、焼成粘土で被覆された焼結マグネシア粒子からなる被覆粒子からの第2の原料成分とを含有するバッチを提供した。バッチの総質量を基準として、第1の原料成分は85質量%の割合で存在し、第2の原料成分は15質量%の割合で存在していた。
3mm~5mm:9質量%
1mm~3mm未満:27質量%
0.1mm~1mm未満:21質量%、及び
0mm超~0.1mm未満:28質量%。
MgO:98.50質量%
Al2O3:0.06質量%
CaO:0.72質量%
SiO2:0.14質量%
Fe2O3:0.52質量%、及び
その他:0.06質量%
を有していた。
MgO:94.30質量%
Al2O3:3.44質量%
Fe2O3:0.58質量%
CaO:0.99質量%
SiO2:0.42質量%
MnO:0.10質量%、及び
強熱減量(LOI):0.17質量%
を有していた。
動的弾性係数:26.6GPa
荷重軟化点の温度T0.5:1,700℃超
冷間圧縮強度:84MPa、及び
室温での曲げ強度:6.4MPa。
第2の実施例は、第1の実施例に相応していたが、以下の変更点があった。
3mm~5mm:10質量%
1mm~3mm未満:29質量%
0.1mm~1mm未満:22質量%、及び
0mm超~0.1mm未満:29質量%。
MgO:94.00質量%
Al2O3:2.90質量%
Fe2O3:0.39質量%
CaO:1.86質量%
SiO2:0.69質量%
MnO:0.03質量%、及び
強熱減量(LOI):0.13質量%
を有していた。
動的弾性係数:27.9GPa
荷重軟化点の温度T0.5:1,700℃超
冷間圧縮強度:72MPa、及び
室温での曲げ強度:4.6MPa。
比較の目的で、本発明の実施例ではない製品を製造した。
MgO:93.90質量%
Al2O3:3.03質量%
Fe2O3:0.33質量%
CaO:1.82質量%
SiO2:0.69質量%
MnO:0.03質量%、及び
強熱減量(LOI):0.20質量%
を有していた。
動的弾性係数:69.3GPa
荷重軟化点の温度T0.5:1,700℃超
冷間圧縮強度:96MPa、及び
室温での曲げ強度:12.8MPa。
比較の目的で、本発明の実施例ではないさらなる製品を製造した。
MgO:95.30質量%
Al2O3:1.43質量%
Fe2O3:0.39質量%
CaO:1.93質量%
SiO2:0.71質量%
MnO:0.03質量%、及び
強熱減量(LOI):0.21質量%
を有していた。
動的弾性係数:48.8GPa
荷重軟化点の温度T0.5:1,700℃超
冷間圧縮強度:73MPa、及び
室温での曲げ強度:6.2MPa。
第1及び第2の実施例に従って製造された製品はそれぞれ、非常に高い構造柔軟性を有し、これは、弾性係数が、それぞれ30GPa未満、すなわち、26.6GPa又は27.9GPaと非常に低いことにより示される。同時に、これらの製品は、荷重軟化点、冷間圧縮強度、及び室温での曲げ強度について良好な値を示した。
Claims (15)
- 以下の酸化物がそれぞれ以下の割合で存在する化学組成:
MgO:少なくとも92質量%
Al2O3:1.5~7質量%
Fe2O3:3質量%未満
CaO+SiO2:1~3質量%
を有し、さらに、
少なくとも2mmの粒径を有し、かつ、
マグネシアからなり、その表面が、少なくとも部分的にマグネシアスピネル被覆を有する、
被覆粒子を含む、耐火性製品。 - MgOの割合が92~96質量%の範囲にある化学組成を有する、請求項1に記載の製品。
- Al2O3の割合が2~3.5質量%の範囲にある化学組成を有する、請求項1又は2に記載の製品。
- Fe2O3の割合が1質量%未満である化学組成を有する、請求項1から3のいずれか一項に記載の製品。
- 40GPa未満の動的弾性係数を有する、請求項1から4のいずれか一項に記載の製品。
- 1,700℃超の荷重軟化点の温度T0.5を有する、請求項1から5のいずれか一項に記載の製品。
- マグネシアスピネル被覆が10~500μmの範囲の厚さを有する、請求項1から6のいずれか一項に記載の製品。
- 被覆粒子が3~5mmの範囲の粒径を有する、請求項1から7のいずれか一項に記載の製品。
- 被覆粒子を5~24質量%の範囲の割合で含む、請求項1から8のいずれか一項に記載の製品。
- 5~24質量%の範囲の割合の被覆粒子を含み、更に76~95質量%の範囲の割合のマグネシアを含む、請求項1から9のいずれか一項に記載の製品。
- 成形されて焼成された耐火性セラミック製品の形態の、請求項1から10のいずれか一項に記載の製品。
- 以下の成分:
マグネシア粒子からなる第1の原料成分;
少なくとも2mmの粒径を有し、かつ、
マグネシアからなり、その表面が、少なくとも部分的にアルミナ被覆を有する、
被覆粒子からなる第2の原料成分;
を含む、請求項1から11のいずれか一項に記載の製品を製造するためのバッチ。 - 被覆粒子が3~5mmの範囲の粒径を有する、請求項12に記載のバッチ。
- 以下の工程:
請求項12又は13に記載のバッチを用意する工程、
バッチを成形して、成形された未焼成の耐火性製品にする工程、
成形された未焼成の耐火性製品を焼成して、成形されて焼成された耐火性セラミック製品にする工程
を含む、請求項11に記載の製品を製造する方法。 - セメントロータリーキルンの内張りのための、請求項1から11のいずれか一項に記載の製品の使用。
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EP18189903.0 | 2018-08-21 | ||
EP18189903.0A EP3613716B1 (de) | 2018-08-21 | 2018-08-21 | Feuerfestes erzeugnis, ein versatz zur herstellung des erzeugnisses, ein verfahren zur herstellung des erzeugnisses sowie eine verwendung des erzeugnisses |
PCT/EP2019/064060 WO2020038620A1 (de) | 2018-08-21 | 2019-05-29 | Feuerfestes erzeugnis, ein versatz zur herstellung des erzeugnisses, ein verfahren zur herstellung des erzeugnisses sowie eine verwendung des erzeugnisses |
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US (1) | US11905218B2 (ja) |
EP (2) | EP3730470A1 (ja) |
JP (1) | JP7105929B2 (ja) |
KR (1) | KR102548108B1 (ja) |
CN (1) | CN111083926B (ja) |
BR (1) | BR112019026009A2 (ja) |
CA (1) | CA3101858C (ja) |
EA (1) | EA202092707A1 (ja) |
ES (1) | ES2822186T3 (ja) |
MX (1) | MX2020013380A (ja) |
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PL3613716T3 (pl) | 2018-08-21 | 2020-12-28 | Refractory Intellectual Property Gmbh & Co. Kg | Wyrób ogniotrwały, zestaw do wytwarzania tego wyrobu, sposób wytwarzania tego wyrobu oraz zastosowanie tego wyrobu |
WO2024041935A1 (en) | 2022-08-24 | 2024-02-29 | Refractory Intellectual Property Gmbh & Co. Kg | Method for producing silicon carbide coated refractory grains and silicon carbide coated refractory grains |
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US5573987A (en) | 1994-02-08 | 1996-11-12 | Veitsch-Radex Aktiengesellschaft Fur Feuerfeste Erzeugnisse | Refractory ceramic mass and its use |
JP2002308667A (ja) | 2001-04-06 | 2002-10-23 | Shinagawa Refract Co Ltd | セメントキルン用塩基性耐火物の製造方法 |
JP2017525639A (ja) | 2014-06-26 | 2017-09-07 | リフラクトリー・インテレクチュアル・プロパティー・ゲー・エム・ベー・ハー・ウント・コ・カーゲー | 耐火セラミック製品 |
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US4162168A (en) * | 1976-12-03 | 1979-07-24 | The Dow Chemical Company | Refractory material |
US4168177A (en) * | 1977-04-04 | 1979-09-18 | Bethlehem Steel Corporation | Refractory gunning composition |
US4735859A (en) | 1985-12-05 | 1988-04-05 | Tokyo Yogyo Kabushiki Kaisha | Magnesia aggregate for refractory article and method for manufacturing same |
DD275664A1 (de) | 1988-09-26 | 1990-01-31 | Aken Magnesitwerk | Verfahren zur herstellung von feuerfesten massen |
JPH02180746A (ja) * | 1988-12-28 | 1990-07-13 | Kawasaki Refract Co Ltd | マグネシア質耐火骨材およびマグネシア―アルミナ質耐火物 |
JPH0442854A (ja) * | 1990-06-07 | 1992-02-13 | Kawasaki Refract Co Ltd | マグネシア―カーボンれんが |
JPH05279113A (ja) * | 1992-03-31 | 1993-10-26 | Kurosaki Refract Co Ltd | セメント及び石灰焼成キルン用の耐火物 |
DE4338484C1 (de) * | 1993-11-11 | 1994-12-01 | Veitsch Radex Ag | Verwendung eines feuerfesten, keramischen Steins auf Basis von MgO zur Auskleidung von Zement-Drehrohröfen |
DE4403869C2 (de) * | 1994-02-08 | 1998-01-15 | Veitsch Radex Ag | Feuerfester keramischer Versatz und dessen Verwendung |
DE102006007781B4 (de) * | 2006-02-20 | 2008-09-25 | Refratechnik Holding Gmbh | Grobkeramischer feuerfester Versatz sowie feuerfestes Erzeugnis daraus |
BRPI0700120B1 (pt) * | 2007-01-24 | 2015-11-17 | Elfusa Geral De Eletrofusão Ltda | composição de refratário básico contendo ortotitanato de magnésio e titanato de cálcio, processo para sua preparação, seus usos e forno para produção de cimento portland ou cal. |
EP2644300B1 (en) * | 2010-11-26 | 2018-03-07 | Sumitomo Electric Hardmetal Corp. | Surface coated sintered body |
JP2014028742A (ja) * | 2012-06-29 | 2014-02-13 | Mitsubishi Materials Corp | 耐食性煉瓦とその製造方法 |
PL3613716T3 (pl) | 2018-08-21 | 2020-12-28 | Refractory Intellectual Property Gmbh & Co. Kg | Wyrób ogniotrwały, zestaw do wytwarzania tego wyrobu, sposób wytwarzania tego wyrobu oraz zastosowanie tego wyrobu |
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- 2018-08-21 PL PL18189903T patent/PL3613716T3/pl unknown
- 2018-08-21 ES ES18189903T patent/ES2822186T3/es active Active
- 2018-08-21 EP EP20180103.2A patent/EP3730470A1/de active Pending
- 2018-08-21 EP EP18189903.0A patent/EP3613716B1/de active Active
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2019
- 2019-05-29 WO PCT/EP2019/064060 patent/WO2020038620A1/de active Application Filing
- 2019-05-29 KR KR1020207038137A patent/KR102548108B1/ko active IP Right Grant
- 2019-05-29 MX MX2020013380A patent/MX2020013380A/es unknown
- 2019-05-29 CN CN201980002898.7A patent/CN111083926B/zh active Active
- 2019-05-29 US US17/257,849 patent/US11905218B2/en active Active
- 2019-05-29 JP JP2020569893A patent/JP7105929B2/ja active Active
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5573987A (en) | 1994-02-08 | 1996-11-12 | Veitsch-Radex Aktiengesellschaft Fur Feuerfeste Erzeugnisse | Refractory ceramic mass and its use |
JP2002308667A (ja) | 2001-04-06 | 2002-10-23 | Shinagawa Refract Co Ltd | セメントキルン用塩基性耐火物の製造方法 |
JP2017525639A (ja) | 2014-06-26 | 2017-09-07 | リフラクトリー・インテレクチュアル・プロパティー・ゲー・エム・ベー・ハー・ウント・コ・カーゲー | 耐火セラミック製品 |
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PL3613716T3 (pl) | 2020-12-28 |
ES2822186T3 (es) | 2021-04-29 |
US20210179495A1 (en) | 2021-06-17 |
EP3613716A1 (de) | 2020-02-26 |
BR112019026009A2 (pt) | 2021-03-02 |
EP3613716B1 (de) | 2020-07-29 |
CA3101858C (en) | 2023-02-28 |
EA202092707A1 (ru) | 2021-05-12 |
US11905218B2 (en) | 2024-02-20 |
KR102548108B1 (ko) | 2023-06-27 |
CA3101858A1 (en) | 2020-02-27 |
CN111083926B (zh) | 2022-12-16 |
WO2020038620A1 (de) | 2020-02-27 |
MX2020013380A (es) | 2021-03-09 |
KR20210016589A (ko) | 2021-02-16 |
EP3730470A1 (de) | 2020-10-28 |
CN111083926A (zh) | 2020-04-28 |
JP2021526501A (ja) | 2021-10-07 |
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