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電爐/轉爐用耐火材料

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電爐爐蓋預制件

產(chǎn)品時(shí)間：2025-04-01 08:36:15

簡(jiǎn)要描述：

電爐爐蓋預制件針對爐蓋頻繁經(jīng)受熱震、鋼渣和爐內CO、CO2、SO2氣體的侵蝕、高溫弧光的輻射、爐內高速抽塵形成的氣流磨損等條件選用水泥或無(wú)水泥結合，采用超微粉技術(shù)、優(yōu)質(zhì)結合劑和高效外加劑，在耐火材料基本理論的指導下，根據各類(lèi)電爐及精煉爐的使用和操作條件的不同，科學(xué)制定配方，精密調配粒度組成，合理選擇結合劑和外加劑配制而成。具有抗熱震穩定性能好、耐侵蝕、體積穩定性好和壽命長(cháng)等特點(diǎn)。適宜于普通電爐、超

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詳細介紹

電爐爐蓋預制件針對爐蓋頻繁經(jīng)受熱震、鋼渣和爐內CO、CO2、SO2氣體的侵蝕、高溫弧光的輻射、爐內高速抽塵形成的氣流磨損等條件選用水泥或無(wú)水泥結合，采用超微粉技術(shù)、優(yōu)質(zhì)結合劑和高效外加劑，在耐火材料基本理論的指導下，根據各類(lèi)電爐及精煉爐的使用和操作條件的不同，科學(xué)制定配方，精密調配粒度組成，合理選擇結合劑和外加劑配制而成。具有抗熱震穩定性能好、耐侵蝕、體積穩定性好和壽命長(cháng)等特點(diǎn)。適宜于普通電爐、超高功率電爐、精煉爐及VD爐使用。本產(chǎn)品為整體澆注預制件，具有強度高，熱震性能好，耐侵蝕，抗熔損比原來(lái)高鋁磚砌爐蓋爐齡延長(cháng)2-3倍。

理化指標（僅供參考）
項目指標牌號		JK-75	JK-85	JK-90
化學(xué)成份（%）	AL3O3	70	80	90
化學(xué)成份（%）	CaO	1.5	1.5	1.5
體積密度（g/cm3)	110℃×24h	≥2.7	≥2.8	≥3.0
耐壓強度（MPa)	110℃×24h	40	40	50
耐壓強度（MPa)	1500℃×3h	80	80	80
抗折強度（MPa)	110℃×24h	6	6	8
抗折強度（MPa)	1500℃×3h	12.5	12.5	12.5
線(xiàn)變化率（%）	1500℃×3h	±1.0	±1.0	±1.0
*高使用溫度（℃）		＞1790	＞1790	＞1790

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