CN109678346A - 耐热陶瓷板 - Google Patents

耐热陶瓷板 Download PDF

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CN109678346A
CN109678346A CN201910090669.7A CN201910090669A CN109678346A CN 109678346 A CN109678346 A CN 109678346A CN 201910090669 A CN201910090669 A CN 201910090669A CN 109678346 A CN109678346 A CN 109678346A
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parts
heat
stable ceramic
ceramic plate
plate according
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肖春燕
廖花妹
潘婷
刘畅
李丽芳
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Heyuan Dongyuan Yingpai Ceramics Co Ltd
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EAGLE BRAND CERAMIC (HEYUAN) Co Ltd
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Abstract

本发明提供了一种耐热陶瓷板，属于陶瓷领域。所述耐热陶瓷板包括板材，所述板材以重量份数计，包括：高岭土10‑25份、滑石粉5‑15份、聚乙烯醇0.2‑1.2份、柠檬酸0.2‑0.5份、堇青石20‑35份、碳纤维1‑3份、石墨烯2‑4份、粘胶纤维0.1‑1.5份。本身请提供的耐热陶瓷板，耐热性能好、强度高、成本低。

Description

耐热陶瓷板
技术领域
本发明涉及陶瓷领域，具体而言，涉及一种耐热陶瓷板。
背景技术
微晶玻璃板和耐热陶瓷板是现在市场上电磁炉面板的主流选择，其中以微晶玻璃板为主。微晶玻璃板的优势在于耐热性能好、膨胀系数小，不渗水；陶瓷板的主要优势在于价格低廉。
然而，微晶玻璃板熔点高、强度较低，生产过程中无法通过机械化全自动的方法进行抛光，只能采用半机械化或纯手工加工，故其价格一般比较高，导致电磁炉价格也较高；耐热陶瓷板一般采用简单上釉的方法生产，其膨胀系数相对较大、有吸水性，使用时不能满足人们的基本需要，而且由于陶瓷板比较粗糙，导致市场接受度不高。
有鉴于此，特提出本发明。
发明内容
本发明的目的在于提供一种耐热陶瓷板，所述耐热陶瓷板耐热性能好、强度高、成本低。
为了实现本发明的上述目的，特采用以下技术方案：
一种耐热陶瓷板，包括板材，所述板材以重量份数计，包括：高岭土10-25份、滑石粉5-15份、聚乙烯醇0.2-1.2份、柠檬酸0.2-0.5份、堇青石20-35份、碳纤维1-3份、石墨烯2-4份、粘胶纤维0.1-1.5份。
聚乙烯醇和柠檬酸的添加有助于提高板材的耐热性能，碳纤维和粘胶纤维的添加提高了板材的强度，石墨烯的添加，除了提高板材强度外，还能够降低板材的膨胀系数。
在原料选择上，出于废物利用、减少固体废物堆积带来的一系列问题，实现环保最大化，滑石粉可以采用废滑石粉、废烂承烧窑板、滑石尾料等，堇青石可以用废旧的烂板来进行替代使用。
优选地，所述板材的原料加水经球磨后，细度为250目筛余0.4-1.2％。
细度控制主要是为了保证结构强度。
更加优选地，所述球磨的时间为12-24小时。
球磨时间的控制主要是为了保证球磨的效果。
进一步优选地，所述板材的原料加水经球磨后得到的泥浆的流速为22-30s。
泥浆流速的控制也是为了保证球磨的效果，以使得在球磨之后的造粒程序中获得粒度适中、含水量适中的颗粒，进而保证压制成型后板材的强度，控制其受热之后的形变量。
更进一步优选地，所述板材成型后的厚度为5-8mm。
控制板材厚度有利于降低成本，保证产品的整体力学性能。
更为优选地，所述板材的烧制温度为1200-1300℃。
烧制温度的控制是为了控制各组分在烧制时发生的一系列变化，获得性能最佳的产品。
优选地，所述耐热陶瓷板，还包括釉料，所述釉料以重量份数计，包括：透锂长石65-75份、钾长石5-15份、氧化锌4-6份、高岭土4-6份、三氧化二铈2-4份、氧化钠2-4份、三氧化钛钙0.5-1份、石英石0.05-0.1份。
透锂长石用来降温和调节膨胀系数，钾长石用来降温，三氧化二铈和三氧化钛钙用来调节膨胀系数，氧化锌和氧化钠用来降温和改善釉面铺展性能，高岭土用作悬浮剂和结合剂，石英石用来调节强度。
优选地，所述釉料以重量份数计，还包括：质量分数为20-25％的C5树脂的甲苯溶液1-3份。
C5树脂的甲苯溶液用来调节釉料的均匀性和流动性，保证烧制后获得较好的镜面效果。
更加优选地，所述釉料的原料加水经球磨后，细度为250目筛余0.05-0.1％。
进一步优选地，所述板材施加所述釉料后，烧制温度为700-900℃。
烧制温度的控制，是为了获得较佳的产品性能。
与现有技术相比，本发明的有益效果为：(1)耐热性能好、膨胀系数低；(2)强度高、成本低。
具体实施方式
下面将结合实施例对本发明的实施方案进行详细描述，但是本领域技术人员将会理解，下列实施例仅用于说明本发明，而不应视为限制本发明的范围。实施例中未注明具体条件者，按照常规条件或制造商建议的条件进行。所用试剂或仪器未注明生产厂商者，均为可以通过市售购买获得的常规产品。
本申请在使用碳纤维和粘胶纤维时，先将其粉碎；使用石墨烯时，也是使用石墨烯粉末。
实施例1
取高岭土25份、滑石粉5份、聚乙烯醇1.2份、柠檬酸0.2份、堇青石35份、碳纤维1份、石墨烯4份、粘胶纤维0.1份，加入适量的水，使用球磨机进行球磨，球磨12小时，得到细度为250目筛余1.2％，泥浆流速经流速杯测定为22秒。经过除铁后，将浆料的含水率调至36％，然后喷雾造粒得到粒径为2-2.5mm的颗粒，含水率为1％，经料仓陈腐24小时；然后用自动压砖机制坯，厚度为8mm，长宽各250mm，经辊道窑1200℃烧制，烧成周期35到45分钟。
取透锂长石75份、钾长石5份、氧化锌6份、高岭土4份、三氧化二铈4份、氧化钠2份、三氧化钛钙1份、石英石0.05份，加适量水球磨18小时，得到细度为250目筛余0.05％的浆料；将浆料含水量调至58％左右，对板材上釉，然后送入辊道窑烧制，烧制温度700℃，烧成周期为30到35分钟。出窑后冷却、抛光、质检、打包。
实施例2
取高岭土10份、滑石粉15份、聚乙烯醇0.2份、柠檬酸0.5份、堇青石20份、碳纤维3份、石墨烯2份、粘胶纤维1.5份，加入适量的水，使用球磨机进行球磨，球磨24小时，得到细度为250目筛余0.4％，泥浆流速经流速杯测定为30秒。经过除铁后，将浆料的含水率调至38％，然后喷雾造粒得到粒径为2-2.5mm的颗粒，含水率为1％，经料仓陈腐24小时；然后用自动压砖机制坯，厚度为5mm，长宽各250mm，经辊道窑1300℃烧制，烧成周期35到45分钟。
取透锂长石65份、钾长石15份、氧化锌4份、高岭土6份、三氧化二铈2份、氧化钠4份、三氧化钛钙0.5份、石英石0.1份，加适量水球磨20小时，得到细度为250目筛余0.1％的浆料；将浆料含水量调至55％左右，对板材上釉，然后送入辊道窑烧制，烧制温度900℃，烧成周期为30到35分钟。出窑后冷却、抛光、质检、打包。
实施例3
取高岭土20份、滑石粉10份、聚乙烯醇0.8份、柠檬酸0.3份、堇青石30份、碳纤维2份、石墨烯3份、粘胶纤维1份，加入适量的水，使用球磨机进行球磨，球磨18小时，得到细度为250目筛余1％，泥浆流速经流速杯测定为26秒。经过除铁后，将浆料的含水率调至35％，然后喷雾造粒得到粒径为2-2.5mm的颗粒，含水率为1％，经料仓陈腐24小时；然后用自动压砖机制坯，厚度为6mm，长宽各250mm，经辊道窑1285℃烧制，烧成周期35到40分钟。
取透锂长石70份、钾长石10份、氧化锌5份、高岭土5份、三氧化二铈3份、氧化钠3份、三氧化钛钙0.8份、石英石0.08份，加适量水球磨20小时，得到细度为250目筛余0.08％的浆料；将浆料含水量调至54％左右，对板材上釉，然后送入辊道窑烧制，烧制温度800℃，烧成周期为30到40分钟。出窑后冷却、抛光、质检、打包。
实施例4
取高岭土22份、滑石粉8份、聚乙烯醇0.5份、柠檬酸0.3份、堇青石25份、碳纤维1.5份、石墨烯2.5份、粘胶纤维0.8份，加入适量的水，使用球磨机进行球磨，球磨15小时，得到细度为250目筛余0.6％，泥浆流速经流速杯测定为28秒。经过除铁后，将浆料的含水率调至34％，然后喷雾造粒得到粒径为2-2.5mm的颗粒，含水率为1％，经料仓陈腐24小时；然后用自动压砖机制坯，厚度为7mm，长宽各250mm，经辊道窑1250℃烧制，烧成周期35到45分钟。
取透锂长石68份、钾长石8份、氧化锌4.5份、高岭土5.5份、三氧化二铈2.5份、氧化钠3.5份、三氧化钛钙0.6份、石英石0.06份、质量分数为20％的C5树脂的甲苯溶液1份，加适量水球磨18小时，得到细度为250目筛余0.06％的浆料；将浆料含水量调至58％左右，对板材上釉，然后送入辊道窑烧制，烧制温度750℃，烧成周期为30到35分钟。出窑后冷却、抛光、质检、打包。
实施例5
取高岭土23份、滑石粉11份、聚乙烯醇0.6份、柠檬酸0.4份、堇青石28份、碳纤维2.5份、石墨烯3.5份、粘胶纤维1.1份，加入适量的水，使用球磨机进行球磨，球磨22小时，得到细度为250目筛余0.7％，泥浆流速经流速杯测定为25秒。经过除铁后，将浆料的含水率调至34％，然后喷雾造粒得到粒径为2-2.5mm的颗粒，含水率为1％，经料仓陈腐24小时；然后用自动压砖机制坯，厚度为6.5mm，长宽各250mm，经辊道窑1240℃烧制，烧成周期35到45分钟。
取透锂长石72份、钾长石12份、氧化锌5.5份、高岭土4.5份、三氧化二铈3.5份、氧化钠2.5份、三氧化钛钙0.8份、石英石0.08份、质量分数为25％的C5树脂的甲苯溶液2份，加适量水球磨18小时，得到细度为250目筛余0.08％的浆料；将浆料含水量调至55％左右，对板材上釉，然后送入辊道窑烧制，烧制温度850℃，烧成周期为30到35分钟。出窑后冷却、抛光、质检、打包。
实施例6
取高岭土24份、滑石粉12份、聚乙烯醇1.1份、柠檬酸0.3份、堇青石32份、碳纤维2.5份、石墨烯3.5份、粘胶纤维0.7份，加入适量的水，使用球磨机进行球磨，球磨20小时，得到细度为250目筛余0.9％，泥浆流速经流速杯测定为28秒。经过除铁后，将浆料的含水率调至32％，然后喷雾造粒得到粒径为2-2.5mm的颗粒，含水率为1％，经料仓陈腐24小时；然后用自动压砖机制坯，厚度为7.5mm，长宽各250mm，经辊道窑1245℃烧制，烧成周期35到45分钟。
取透锂长石74份、钾长石6份、氧化锌4.5份、高岭土4份、三氧化二铈3.5份、氧化钠2份、三氧化钛钙0.7份、石英石0.09份、质量分数为22％的C5树脂的甲苯溶液3份，加适量水球磨16小时，得到细度为250目筛余0.07％的浆料；将浆料含水量调至55％左右，对板材上釉，然后送入辊道窑烧制，烧制温度880℃，烧成周期为30到35分钟。出窑后冷却、抛光、质检、打包。
比较例1
与实施例1相比，板材中不添加聚乙烯醇和柠檬酸。
比较例2
与实施例2相比，板材中不添加碳纤维、石墨烯和粘胶纤维。
比较例3
与实施例3相比，釉料中不添加三氧化二铈、三氧化钛钙。
对实施例1-6和比较例1-3得到的产品各500组进行性能测试。具体测试项目如下：
1.外观；观察是否具有镜面效果；计算合格率；
2.强度；5kg平底锅放置在产品的正上方30cm处，掉落后板面是否碎裂；计算合格率；
3.耐热性；产品边缘温度与中心点温差是否达到450℃以上；计算合格率；
4.膨胀系数；温度在450℃时，产品膨胀系数是否低于2.5*10-6；计算合格率。
合格率按照百分比计算。
具体测试结果如下表1所示：
项目 外观/％ 强度/％ 耐热性/％ 膨胀系数/％
实施例1 99.9 99.3 99.2 98.9
实施例2 100 99.2 99.3 99.1
实施例3 99.8 99.4 99.1 99.3
实施例4 100 99.5 99.6 99.6
实施例5 100 99.8 99.5 99.5
实施例6 100 99.6 99.7 99.6
比较例1 99.2 61.8 78.3 74.6
比较例2 99.1 67.4 80.5 66.4
比较例3 99.5 70.2 85.4 61.5
上述测试数据表明，本申请提供的板材和釉料制得的陶瓷板，膨胀系数低、强度高、耐热性好，外观具备镜面效果。
本身请提供的耐热陶瓷板，耐热性能好、强度高、膨胀系数低、成本低。
尽管已用具体实施例来说明和描述了本发明，然而应意识到，在不背离本发明的精神和范围的情况下可以作出许多其它的更改和修改。因此，这意味着在所附权利要求中包括属于本发明范围内的所有这些变化和修改。

Claims (10)

1.一种耐热陶瓷板，其特征在于，包括板材，所述板材以重量份数计，包括：高岭土10-25份、滑石粉5-15份、聚乙烯醇0.2-1.2份、柠檬酸0.2-0.5份、堇青石20-35份、碳纤维1-3份、石墨烯2-4份、粘胶纤维0.1-1.5份。
2.根据权利要求1所述的耐热陶瓷板，其特征在于，所述板材的原料加水经球磨后，细度为250目筛余0.4-1.2％。
3.根据权利要求2所述的耐热陶瓷板，其特征在于，所述球磨的时间为12-24小时。
4.根据权利要求3所述的耐热陶瓷板，其特征在于，所述板材的原料加水经球磨后得到的泥浆的流速为22-30s。
5.根据权利要求4所述的耐热陶瓷板，其特征在于，所述板材成型后的厚度为5-8mm。
6.根据权利要求5所述的耐热陶瓷板，其特征在于，所述板材的烧制温度为1200-1300℃。
7.根据权利要求1-6任一项所述的耐热陶瓷板，其特征在于，还包括釉料，所述釉料以重量份数计，包括：透锂长石65-75份、钾长石5-15份、氧化锌4-6份、高岭土4-6份、三氧化二铈2-4份、氧化钠2-4份、三氧化钛钙0.5-1份、石英石0.05-0.1份。
8.根据权利要求7所述的耐热陶瓷板，其特征在于，所述釉料以重量份数计，还包括：质量分数为20-25％的C5树脂的甲苯溶液1-3份。
9.根据权利要求8所述的耐热陶瓷板，其特征在于，所述釉料的原料加水经球磨后，细度为250目筛余0.05-0.1％。
10.根据权利要求9所述的耐热陶瓷板，其特征在于，所述板材施加所述釉料后，烧制温度为700-900℃。
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