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The invention discloses an ultrahigh-temperature ceramic roller bar for a roller kiln and a preparation method thereof, and aims to meet the use condition of 1700 DEG C ultrahigh temperature; the roller bar comprises the following components in percentage by mass: 32-38% of alpha aluminum oxide and 46-52% of fused corundum sand ultrafine powder; 10-14% of silica powder; 1-5% of active nano aluminum oxide micro powder; the preparation method of the roller bar comprises the following steps: (1) mixing the raw materials and adding into a ball mill for water milling for 6 hours to prepare slurry; (2) dehydrating and filter-pressing through a filter press, and then preparing a mud column through a vacuum pug mill; (3) installing a mold by using a vacuum tube extruding machine, and performing extrusion molding; (4) putting on an aluminum alloy bracket, covering the roller blank with cotton cloth, and drying in the shade for 48 hours; (5) drying with hot air at 65-70 DEG C for 24 hours; and (6) putting into a pit kiln, heating for 36 hours to 1600 DEG C, keeping the highest temperature of 1600 DEG C for 24 hours, stopping fire, and cooling for 72 hours.
一种用于辊道窑的超高温陶瓷辊棒及其制法，目的是满足1700℃超高温度使用条件；该棍棒按照质量百分百计的组分为：α氧化铝32‑38％,电熔刚玉砂超细粉46‑52％；硅微粉10‑14％；活性纳米氧化铝微粉1‑5％；该辊棒制法是(1)将原料混合加入球磨机中水磨6小时制成浆料；(2)通过压滤机脱水压滤后再通过真空练泥机制成泥柱；(3)用真空挤管机安装模具后挤出成型；(4)放在铝合金托架上用棉布盖在辊棒坯体上阴干48小时；(5)65‑70℃热风干燥24小时；(6)装入井式窑内升温36小时到达1600℃，保持1600℃最高温度24小时，停火后降温72小时。
The invention discloses an ultrahigh-temperature ceramic roller bar for a roller kiln and a preparation method thereof, and aims to meet the use condition of 1700 DEG C ultrahigh temperature; the roller bar comprises the following components in percentage by mass: 32-38% of alpha aluminum oxide and 46-52% of fused corundum sand ultrafine powder; 10-14% of silica powder; 1-5% of active nano aluminum oxide micro powder; the preparation method of the roller bar comprises the following steps: (1) mixing the raw materials and adding into a ball mill for water milling for 6 hours to prepare slurry; (2) dehydrating and filter-pressing through a filter press, and then preparing a mud column through a vacuum pug mill; (3) installing a mold by using a vacuum tube extruding machine, and performing extrusion molding; (4) putting on an aluminum alloy bracket, covering the roller blank with cotton cloth, and drying in the shade for 48 hours; (5) drying with hot air at 65-70 DEG C for 24 hours; and (6) putting into a pit kiln, heating for 36 hours to 1600 DEG C, keeping the highest temperature of 1600 DEG C for 24 hours, stopping fire, and cooling for 72 hours.
一种用于辊道窑的超高温陶瓷辊棒及其制法，目的是满足1700℃超高温度使用条件；该棍棒按照质量百分百计的组分为：α氧化铝32‑38％,电熔刚玉砂超细粉46‑52％；硅微粉10‑14％；活性纳米氧化铝微粉1‑5％；该辊棒制法是(1)将原料混合加入球磨机中水磨6小时制成浆料；(2)通过压滤机脱水压滤后再通过真空练泥机制成泥柱；(3)用真空挤管机安装模具后挤出成型；(4)放在铝合金托架上用棉布盖在辊棒坯体上阴干48小时；(5)65‑70℃热风干燥24小时；(6)装入井式窑内升温36小时到达1600℃，保持1600℃最高温度24小时，停火后降温72小时。
Ultrahigh-temperature ceramic roller bar for roller kiln and preparation method thereof
一种用于辊道窑的超高温陶瓷辊棒及其制法
2021-09-21
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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