CN108178623B - 一种微波发热陶瓷及其加工工艺 - Google Patents

一种微波发热陶瓷及其加工工艺 Download PDF

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CN108178623B
CN108178623B CN201810023152.1A CN201810023152A CN108178623B CN 108178623 B CN108178623 B CN 108178623B CN 201810023152 A CN201810023152 A CN 201810023152A CN 108178623 B CN108178623 B CN 108178623B
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唐华生
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Lengshuijiang Huasheng Porcelain Co ltd
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Abstract

本发明公开了一种新型微波发热陶瓷，包括按质量百分比含量计：铁氧体：15％‑35％；碳化硅10％‑20％；氧化铝瓷粉10％‑15％；石墨2％‑5％；氧化铈1％‑2％；堇青石8％‑20％；莫来石8％‑20％，本发明还公开了一种新型微波发热陶瓷的加工工艺，本发明的有益效果是：本发明设计一种新型微波发热陶瓷，该微波发热陶瓷发热量大，发热最高温度可达600℃，热震性更好，长时间加热不易开裂，生产工艺简单，可进行大规模生产。

Description

一种微波发热陶瓷及其加工工艺
技术领域
本发明属于微波发热陶瓷技术领域，具体涉及一种新型微波发热陶瓷及其加工工艺。
背景技术
高温烘烧陶瓷发热片(MCH)是直接在AL2O3氧化铝陶瓷生坯上印刷电阻浆料后,在1600℃左右的高温下烘烧,然后再经电极、引线处理后,所生产的新一代中低温发热元件.是继合金电热丝,PTC加热元件之后的又一个换代新品,广泛用于日常生活、工农业技术、通讯、医疗、环保、等各个需要中低温加热的众多领域。在工业方面如工业烘工设备、电热粘合器、水油及酸碱液体加热器等；在电子行业方面如小型专用晶体器件恒温槽；在医疗方面如红外理疗仪、静脉的注射液加热器等等。
现有技术的微波发热陶瓷在微波炉加热时存在一定缺陷：加热时的发热量少，发热温度不高；热震性一般，一旦加热时间过长可能会出现开裂。
发明内容
本发明的目的在于公开一种发热量大，导热系数小，发热温度高，热震性更好，长时间加热不易开裂，生产工艺简单，可进行大规模生产的新型微波发热陶瓷，本发明的另一目的还在于公开一种新型微波发热陶瓷的加工工艺。
为实现上述目的，本发明提供如下技术方案：一种新型微波发热陶瓷，包括按质量百分比含量计：
铁氧体：15％-35％；
碳化硅10％-20％；
氧化铝瓷粉10％-15％；
石墨2％-5％；
氧化铈1％-2％；
堇青石8％-20％；
莫来石8％-20％。
所述铁氧体为永磁铁氧体或软磁铁氧体或旋磁铁氧体。
所述碳化硅为黑碳化硅。
上述微波发热陶瓷的加工工艺，包括以下步骤：
(1)原料制粉：将铁氧体：15％-35％，碳化硅10％-20％，氧化铝瓷粉10％-15％，石墨2％-5％，氧化铈1％-2％，堇青石8％-20％，莫来石8％-20％，加入到粉碎设备中进行粗碎，中碎，细碎，制作出原材料粉末；
(2)混合粘结：在制作出的原材料粉末中加入18％-25％的粘结剂，使原材料粉末混合粘结；
(3)压制成型：将粘结的原材料计入到微波发热陶瓷专用模具中，压制成微波发热陶瓷半成品；
(4)烧制成型：将压制好的微波发热陶瓷半成品运入到烧结窑炉中，调控窑炉中的温度在775-825℃，烧结时间调控在20-40分钟，烧结成微波发热陶瓷成品；
(5)成品处理：对烧结好的微波发热陶瓷成品进行表面打磨处理，保证微波发热陶瓷表面的光洁度。
所述步骤(2)中的粘合剂为水玻璃。
与现有技术相比，本发明的有益效果是：
本发明设计一种新型微波发热陶瓷，该微波发热陶瓷发热量大，发热最高温度可达600℃，热震性更好，长时间加热不易开裂，生产工艺简单，可进行大规模生产。
具体实施方式
下面对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
实施例1
一种新型微波发热陶瓷，包括按质量百分比含量计：
铁氧体15％；
碳化硅10％；
氧化铝瓷粉10％；
石墨5％；
氧化铈2％；
堇青石20％；
莫来石20％。
本实施例中，铁氧体为软磁铁氧体，碳化硅为黑碳化硅。
上述微波发热陶瓷的加工工艺，包括以下步骤：
(1)原料制粉：将铁氧体：15％，碳化硅10％，氧化铝瓷粉10％，石墨5％，氧化铈2％，堇青石20％，莫来石20％，加入到粉碎设备中进行粗碎，中碎，细碎，制作出原材料粉末；
(2)混合粘结：在制作出的原材料粉末中加入18％的粘结剂，使原材料粉末混合粘结；
(3)压制成型：将粘结的原材料计入到微波发热陶瓷专用模具中，压制成微波发热陶瓷半成品；
(4)烧制成型：将压制好的微波发热陶瓷半成品运入到烧结窑炉中，调控窑炉中的温度在800℃，烧结时间调控在30分钟，烧结成微波发热陶瓷成品；
(5)成品处理：对烧结好的微波发热陶瓷成品进行表面打磨处理，保证微波发热陶瓷表面的光洁度。
所述步骤(2)中的粘合剂为水玻璃。
本实施例中制成的微波发热陶瓷，发热最高温度500℃，热震性良好，长时间加热不易开裂，耐热性能一般。
实施例2
一种新型微波发热陶瓷，包括按质量百分比含量计：
铁氧体30％；
碳化硅15％；
氧化铝瓷粉15％；
石墨2％；
氧化铈1％；
堇青石8％；
莫来石8％。
本实施例中，铁氧体为软磁铁氧体，碳化硅为黑碳化硅。
上述微波发热陶瓷的加工工艺，包括以下步骤：
(1)原料制粉：将铁氧体30％，碳化硅15％，氧化铝瓷粉15％，石墨2％，氧化铈1％，堇青石8％，莫来石8％，加入到粉碎设备中进行粗碎，中碎，细碎，制作出原材料粉末；
(2)混合粘结：在制作出的原材料粉末中加入21％的粘结剂，使原材料粉末混合粘结；
(3)压制成型：将粘结的原材料计入到微波发热陶瓷专用模具中，压制成微波发热陶瓷半成品；
(4)烧制成型：将压制好的微波发热陶瓷半成品运入到烧结窑炉中，调控窑炉中的温度在800℃，烧结时间调控在30分钟，烧结成微波发热陶瓷成品；
(5)成品处理：对烧结好的微波发热陶瓷成品进行表面打磨处理，保证微波发热陶瓷表面的光洁度。
所述步骤(2)中的粘合剂为水玻璃。
本实施例中制成的微波发热陶瓷，发热最高温度600℃，热震性良好，长时间加热不易开裂，耐热性能较好。
实施例3
一种新型微波发热陶瓷，包括按质量百分比含量计：
铁氧体20％；
碳化硅15％；
氧化铝瓷粉10％；
石墨4％；
氧化铈2％；
堇青石15％；
莫来石15％。
本实施例中，铁氧体为软磁铁氧体，碳化硅为黑碳化硅。
上述微波发热陶瓷的加工工艺，包括以下步骤：
(1)原料制粉：将铁氧体20％，碳化硅15％，氧化铝瓷粉10％，石墨4％，氧化铈2％，堇青石15％，莫来石15％，加入到粉碎设备中进行粗碎，中碎，细碎，制作出原材料粉末；
(2)混合粘结：在制作出的原材料粉末中加入19％的粘结剂，使原材料粉末混合粘结；
(3)压制成型：将粘结的原材料计入到微波发热陶瓷专用模具中，压制成微波发热陶瓷半成品；
(4)烧制成型：将压制好的微波发热陶瓷半成品运入到烧结窑炉中，调控窑炉中的温度在800℃，烧结时间调控在30分钟，烧结成微波发热陶瓷成品；
(5)成品处理：对烧结好的微波发热陶瓷成品进行表面打磨处理，保证微波发热陶瓷表面的光洁度。
所述步骤(2)中的粘合剂为水玻璃。
本实施例中制成的微波发热陶瓷，发热最高温度550℃，热震性良好，长时间加热不易开裂，耐热性能一般。
尽管已经示出和描述了本发明的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由所附权利要求及其等同物限定。

Claims (5)

1.一种微波发热陶瓷，其特征在于，包括按质量百分比含量计：
铁氧体：15％-35％；
碳化硅10％-20％；
氧化铝瓷粉10％-15％；
石墨2％-5％；
氧化铈1％-2％；
堇青石8％-20％；
莫来石8％-20％。
2.根据权利要求1所述的一种微波发热陶瓷，其特征在于：所述铁氧体为永磁铁氧体或软磁铁氧体或旋磁铁氧体。
3.根据权利要求1所述的一种微波发热陶瓷，其特征在于：所述碳化硅为黑碳化硅。
4.根据权利要求1-3任一所述的一种微波发热陶瓷的加工工艺，其特征在于，包括以下步骤：
(1)原料制粉：将铁氧体：15％-35％，碳化硅10％-20％，氧化铝瓷粉10％-15％，石墨2％-5％，氧化铈1％-2％，堇青石8％-20％，莫来石8％-20％，加入到粉碎设备中进行粗碎，中碎，细碎，制作出原材料粉末；
(2)混合粘结：在制作出的原材料粉末中加入18％-25％的粘结剂，使原材料粉末混合粘结；
(3)压制成型：将粘结的原材料计入到微波发热陶瓷专用模具中，压制成微波发热陶瓷半成品；
(4)烧制成型：将压制好的微波发热陶瓷半成品运入到烧结窑炉中，调控窑炉中的温度在775-825℃，烧结时间调控在20-40分钟，烧结成微波发热陶瓷成品；
(5)成品处理：对烧结好的微波发热陶瓷成品进行表面打磨处理，保证微波发热陶瓷表面的光洁度。
5.根据权利要求4所述的一种微波发热陶瓷的加工工艺，其特征在于，所述步骤(2)中的粘合剂为水玻璃。
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