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A platform for research: civil engineering, architecture and urbanism
MANUFACTURING METHOD OF CARBON-CONTAINING PLATE REFRACTORY FOR SLIDING NOZZLE
PROBLEM TO BE SOLVED: To provide a manufacturing method of a carbon-containing refractory for sliding nozzle capable of providing the carbon-containing plate refractory for sliding nozzle having high oxidant resistance, strength and thermal impact resistance.SOLUTION: There is provided a manufacturing method of a carbon-containing plate refractory for sliding nozzle by heat treating a molded body by mixing a blended article containing a refractory inorganic material for 60 to 97.4 mass%, a carbonaceous material of 1 to 10 mass%, Al or an Al-containing alloy of 0.5 to 12 mass%, nitride having standard generated Gibbs energy per 1 molar of a nitrogen atom in nitride at a maximum temperature during a heat treatment which is larger than standard generated Gibbs energy of AlN and negative of 0.1 to 10 mass% and a binder of 1 to 8 mass%, and molding the blended article to a predetermined shape under a condition with a maximum temperature of 800 to 1400°C in a non-oxidative atmosphere mainly containing Nwith Oconcentration of 0.1 vol.% or less and CO+COconcentration of 20 vol.% or less.SELECTED DRAWING: None
【課題】高い耐酸化性、強度および耐熱衝撃性を具備した炭素含有スライディングノズル用プレート耐火物を得ることができるスライディングノズル用炭素含有プレート耐火物の製造方法の提供。【解決手段】耐火性無機材料６０〜９７．４質量％、炭素質材料１〜１０質量％、ＡｌまたはＡｌ含有合金０．５〜１２質量％、熱処理中の最高温度における窒化物中の窒素原子１モル当りの標準生成ギブスエネルギーがＡｌＮの標準生成ギブスエネルギーより大きくかつ負である窒化物０．１〜１０質量％及びバインダー１〜８質量％よりなる配合物を混練し、所定の形状に成形した成形体を、Ｎ２を主体とし、Ｏ２濃度が０．１体積％以下、ＣＯ＋ＣＯ２濃度が２０体積％以下の非酸化性雰囲気中で最高温度が８００〜１４００℃の条件で熱処理するスライディングノズル用炭素含有プレート耐火物の製造方法。【選択図】なし
MANUFACTURING METHOD OF CARBON-CONTAINING PLATE REFRACTORY FOR SLIDING NOZZLE
PROBLEM TO BE SOLVED: To provide a manufacturing method of a carbon-containing refractory for sliding nozzle capable of providing the carbon-containing plate refractory for sliding nozzle having high oxidant resistance, strength and thermal impact resistance.SOLUTION: There is provided a manufacturing method of a carbon-containing plate refractory for sliding nozzle by heat treating a molded body by mixing a blended article containing a refractory inorganic material for 60 to 97.4 mass%, a carbonaceous material of 1 to 10 mass%, Al or an Al-containing alloy of 0.5 to 12 mass%, nitride having standard generated Gibbs energy per 1 molar of a nitrogen atom in nitride at a maximum temperature during a heat treatment which is larger than standard generated Gibbs energy of AlN and negative of 0.1 to 10 mass% and a binder of 1 to 8 mass%, and molding the blended article to a predetermined shape under a condition with a maximum temperature of 800 to 1400°C in a non-oxidative atmosphere mainly containing Nwith Oconcentration of 0.1 vol.% or less and CO+COconcentration of 20 vol.% or less.SELECTED DRAWING: None
【課題】高い耐酸化性、強度および耐熱衝撃性を具備した炭素含有スライディングノズル用プレート耐火物を得ることができるスライディングノズル用炭素含有プレート耐火物の製造方法の提供。【解決手段】耐火性無機材料６０〜９７．４質量％、炭素質材料１〜１０質量％、ＡｌまたはＡｌ含有合金０．５〜１２質量％、熱処理中の最高温度における窒化物中の窒素原子１モル当りの標準生成ギブスエネルギーがＡｌＮの標準生成ギブスエネルギーより大きくかつ負である窒化物０．１〜１０質量％及びバインダー１〜８質量％よりなる配合物を混練し、所定の形状に成形した成形体を、Ｎ２を主体とし、Ｏ２濃度が０．１体積％以下、ＣＯ＋ＣＯ２濃度が２０体積％以下の非酸化性雰囲気中で最高温度が８００〜１４００℃の条件で熱処理するスライディングノズル用炭素含有プレート耐火物の製造方法。【選択図】なし
MANUFACTURING METHOD OF CARBON-CONTAINING PLATE REFRACTORY FOR SLIDING NOZZLE
スライディングノズル用炭素含有プレート耐火物の製造方法
HAMAMOTO NAOHIDE (author) / MIZOBUCHI FUMIHIKO (author)
2017-10-19
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
/
B22D
CASTING OF METALS
,
Gießen von Metallen
/
C21C
Weiterverarbeiten von Roheisen, z.B. Feinen, Herstellen von Schweißeisen oder Stahl
,
PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL
/
F27D
Einzelheiten oder Zubehör für Industrieöfen, Schachtöfen, Brennöfen oder Retorten, soweit sie nicht auf eine Ofenart eingeschränkt sind
,
DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
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