JP2019503973A - 耐火物を製造するための粒子、その粒子の使用、耐火物、耐火物を製造するプロセス、および該プロセスによって製造された製品 - Google Patents
耐火物を製造するための粒子、その粒子の使用、耐火物、耐火物を製造するプロセス、および該プロセスによって製造された製品 Download PDFInfo
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- JP2019503973A JP2019503973A JP2018545542A JP2018545542A JP2019503973A JP 2019503973 A JP2019503973 A JP 2019503973A JP 2018545542 A JP2018545542 A JP 2018545542A JP 2018545542 A JP2018545542 A JP 2018545542A JP 2019503973 A JP2019503973 A JP 2019503973A
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- zirconium dioxide
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- 239000002245 particle Substances 0.000 title claims abstract description 164
- 239000011819 refractory material Substances 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 22
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 86
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 84
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 64
- 229910052726 zirconium Inorganic materials 0.000 claims description 64
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 33
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 32
- 229910052799 carbon Inorganic materials 0.000 claims description 31
- 238000010304 firing Methods 0.000 claims description 19
- 230000009466 transformation Effects 0.000 claims description 19
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 17
- 229910052757 nitrogen Inorganic materials 0.000 claims description 17
- 229910052782 aluminium Inorganic materials 0.000 claims description 15
- 239000002994 raw material Substances 0.000 claims description 15
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- 239000010703 silicon Substances 0.000 claims description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 7
- 229910052791 calcium Inorganic materials 0.000 claims description 7
- 239000011575 calcium Substances 0.000 claims description 7
- 229910052727 yttrium Inorganic materials 0.000 claims description 6
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 229910052749 magnesium Inorganic materials 0.000 claims description 5
- 239000011777 magnesium Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229910052735 hafnium Inorganic materials 0.000 claims description 3
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 claims description 3
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- 230000000087 stabilizing effect Effects 0.000 description 21
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- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 15
- 239000000654 additive Substances 0.000 description 14
- 239000000292 calcium oxide Substances 0.000 description 13
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 13
- 239000007858 starting material Substances 0.000 description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 11
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- 239000011214 refractory ceramic Substances 0.000 description 9
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- 239000000395 magnesium oxide Substances 0.000 description 8
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- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 5
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- 239000010987 cubic zirconia Substances 0.000 description 5
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- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 4
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- GEIAQOFPUVMAGM-UHFFFAOYSA-N ZrO Inorganic materials [Zr]=O GEIAQOFPUVMAGM-UHFFFAOYSA-N 0.000 description 3
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- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000013081 microcrystal Substances 0.000 description 3
- 150000004767 nitrides Chemical class 0.000 description 3
- 229910001404 rare earth metal oxide Inorganic materials 0.000 description 3
- 239000000161 steel melt Substances 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
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- OTCHGXYCWNXDOA-UHFFFAOYSA-N [C].[Zr] Chemical compound [C].[Zr] OTCHGXYCWNXDOA-UHFFFAOYSA-N 0.000 description 2
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- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 238000000844 transformation Methods 0.000 description 2
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- SDXDHLDNCJPIJZ-UHFFFAOYSA-N [Zr].[Zr] Chemical compound [Zr].[Zr] SDXDHLDNCJPIJZ-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
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- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 230000005501 phase interface Effects 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 150000003376 silicon Chemical class 0.000 description 1
- 239000011863 silicon-based powder Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- ZVWKZXLXHLZXLS-UHFFFAOYSA-N zirconium nitride Chemical compound [Zr]#N ZVWKZXLXHLZXLS-UHFFFAOYSA-N 0.000 description 1
- DUNKXUFBGCUVQW-UHFFFAOYSA-J zirconium tetrachloride Chemical compound Cl[Zr](Cl)(Cl)Cl DUNKXUFBGCUVQW-UHFFFAOYSA-J 0.000 description 1
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Abstract
Description
高い耐食性または耐摩耗性を有する耐火物を提供することが必要な場合、これらの製品は、ZrO2(二酸化ジルコニウム)の比率を含む。
本発明のさらなる目的は、このような物質を含む耐火物を提供することにある。
本発明のさらなる目的は、このような耐火物を製造するプロセス、およびそれによって製造された耐火物を提供することにある。
本発明は、炭窒化ジルコニウムが、高い耐食性または耐摩耗性を有する耐火物を製造するための優れた物質または原材料であることの驚くべき発見に基づくものである。
本発明はさらに、耐火物を製造するため、特に耐火セラミック製品を製造するための炭窒化ジルコニウムの使用を提供する。
本発明はさらに、本発明の粒子を含む、耐火物を製造するため、特に耐火セラミック製品を製造するための混合物を提供する。
本発明によると、「二酸化ジルコニウム」とは、ジルコニウム(IV)酸化物、すなわちZrO2を指す。
好ましくは、本発明の粒子中の二酸化ジルコニウムは、立方晶変態であり得る。
ジルコニウム:5質量%から97質量%、すなわち質量比で例えば少なくとも5%、10%、20%、30%、40%、50%、52%、54%、56%、58%、60%、62%、64%、65%、66%、67%、68%または69%、質量比で例えば最大97%、96%、94%、92%、90%、88%、86%、84%、82%、80%、79%、78%、77%、76%、75%、74%、73%、72%または71%;
酸素:1質量%から50質量%、すなわち質量比で例えば少なくとも1%、2%、4%、6%、8%、10%、11%、12%、13%、14%、15%、16%、17%、18または19%、質量比で例えば最大50%、40%、30%、29%、28%、27%、26%、25%、24%、23%、22%または21%;
窒素:1質量%から30質量%、すなわち質量比で例えば少なくとも1%、2%、3%、4%、5%、6%または7%、質量比で例えば最大30%、20%、15%、14%、13%、12%、11%または10%;
炭素:1質量%から30質量%、すなわち質量比で例えば少なくとも1%、2%、3%、4%、5%、6%または7%、質量比で例えば最大30%、20%、15%、14%、13%、12%、11%または10%;
ハフニウム:0質量%から4質量%、すなわち質量比で例えば少なくとも0.5%または1.0%または1.5%、質量比で例えば最大4.0%または3.5%または3.0%または2.5%または2.0%;
カルシウム:0質量%から8質量%、すなわち質量比で例えば少なくとも0.5%または1.0%、質量比で例えば最大8%、7%、6%、5%、4%、3%、2%、1%または0.5%;
マグネシウム:0質量%から8質量%、すなわち質量比で例えば少なくとも0.5%または1.0%、質量比で例えば最大8%、7%、6%、5%、4%、3%、2%、1%または0.5%;
イットリウム:0質量%から8質量%、すなわち質量比で例えば少なくとも0.5%または1.0%、質量比で例えば最大8%、7%、6%、5%、4%、3%、2%、1%または0.5%;
鉄:0質量%から2質量%、すなわち例えば少なくとも0.1質量%、質量比で例えば最大1.5%または0.8%または0.5%;
アルミニウム:0質量%から2質量%、すなわち例えば少なくとも0.1質量%、質量比で例えば最大1.5%または0.8%または0.5%;
ケイ素:0質量%から2質量%、すなわち例えば少なくとも0.1質量%、質量比で例えば最大1.5%または0.8%または0.5%。
焼成の後、二酸化ジルコニウムは特に室温まで冷却され、本発明の粒子を与える。
‐二酸化ジルコニウムを提供する段階と、
‐少なくとも1つの以下の物質:炭素および窒素、の存在下で還元雰囲気において二酸化ジルコニウムを焼成する段階と、
‐二酸化ジルコニウムを冷却する段階と、
を含むプロセスを提供する。
別の方法では、プロセスは、本明細書中に記載のステップを含み得る。
本発明の耐火物は、成形部品、特に摩耗部、より好ましくは連続鋼鋳造における摩耗部、例えばモノブロックストッパ、ノズル、浸漬管、または浸漬ノズルであり得る。
本発明の製品において、本発明の粒子は、例えば炭素マトリクス中に存在し得る。炭素マトリクスは、黒鉛の形態であり得る。
‐本発明の粒子を提供する段階と、
‐粒子をさらなる耐火原材料と結合させる段階と、
‐粒子およびさらなる耐火原材料を成形体へとプレスする段階と、
‐成形体を焼成して耐火物を与える段階と、
を含むプロセスを提供する。
グリーン体は続いて焼成され得、冷却後に耐火物が得られる。
別の方法では、本発明の耐火物は、従来から知られているプロセス段階によって製造され得る。
本発明のさらなる特徴は、特許請求の範囲、添付の図面およびその説明、ならびに実施例から明らかとなる。
本明細書に記載された本発明の全ての特徴は、必要に応じて互いに組み合わされ得る。
提供された別の開始材料は、粒子形態の窒化アルミニウムの形態の窒素担体であった。
さらなる開始材料は、金属ケイ素およびアルミニウム粉末によって形成された。
第1に、混合物は、約1550℃の温度で約12時間の間、閉鎖炉内空間で焼成された。こうして焼成された混合物を「サンプル1」と称する。
第2に、混合物は、約1300℃の温度で約24時間の間、閉鎖炉内空間で焼成された。こうして焼成された混合物を「サンプル2」と称する。
焼成の間に形成された本発明のさらなる粒子は、参照符号3および4によって特定される。
ジルコニウム:約65.0%
酸素: 約18.0%
窒素: 約6.0%
炭素: 約7.0%
カルシウム: 約2.5%
マグネシウム:0%
イットリウム:0%
鉄: <0.5%
アルミニウム:<0.5%
ジルコニウム:約64.0%
酸素: 約17.0%
窒素: 約8.0%
炭素: 約9.0%
カルシウム: 約1.0%
マグネシウム:0%
イットリウム:0%
鉄: <0.5%
アルミニウム:<0.5%
2 炭素マトリクス
3 粒子
4 粒子
5 薄層
11 粒子
12 炭素マトリクス
15 薄層
Claims (14)
- 炭窒化ジルコニウムを含む、耐火物を製造するための粒子。
- 炭窒化ジルコニウムが前記粒子のエッジ領域に集中している、請求項1に記載の粒子。
- 1質量%から99質量%の範囲の炭窒化ジルコニウムの比率を有する、請求項1または2に記載の粒子。
- 二酸化ジルコニウムを含む、請求項1から3のいずれか一項に記載の粒子。
- 前記二酸化ジルコニウムが立方晶変態である、請求項4に記載の粒子。
- 前記二酸化ジルコニウムが、立方晶変態において室温準安定鉱物相の形態である、請求項4に記載の粒子。
- 1質量%から99質量%の範囲の二酸化ジルコニウムの比率を有する、請求項1から6のいずれか一項に記載の粒子。
- 以下の元素を以下の質量比で含む、請求項1から7のいずれか一項に記載の粒子:
ジルコニウム:5〜97%、
酸素: 1〜50%、
窒素: 1〜30%、
炭素: 1〜30%、
ハフニウム: 0〜4%、
カルシウム: 0〜8%、
マグネシウム:0〜8%、
イットリウム:0〜8%、
鉄: 0〜2%、
アルミニウム:0〜2%、
ケイ素: 0〜2%。 - 請求項1から8のいずれか一項に記載の粒子を含む耐火物。
- 連続鋼鋳造における摩耗部の形態である、請求項9に記載の耐火物。
- スライドプレート、モノブロックストッパ、ノズル、浸漬管または浸漬ノズルの形成である、請求項10に記載の耐火物。
- 耐火物を製造するための原材料としての請求項1から8のいずれか一項に記載の粒子の使用。
- 耐火物を製造するプロセスであって、
13.1:請求項1から8のいずれか一項に記載の粒子を提供するステップと、
13.2:前記粒子をさらなる耐火原材料と結合するステップと、
13.3:前記粒子および前記さらなる耐火原材料を成形体へとプレスするステップと、
13.4:前記成形体を焼成して耐火物を提供するステップと、
を含む、プロセス。 - 請求項13に記載のプロセスによって製造された耐火物。
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