CN107935564A - 一种陶瓷电阻的制备方法 - Google Patents

一种陶瓷电阻的制备方法 Download PDF

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CN107935564A
CN107935564A CN201711149285.5A CN201711149285A CN107935564A CN 107935564 A CN107935564 A CN 107935564A CN 201711149285 A CN201711149285 A CN 201711149285A CN 107935564 A CN107935564 A CN 107935564A
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江明泓
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SICHUAN QIXING ELECTRONICS CO Ltd
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Abstract

本发明提供一种陶瓷电阻的制备方法，涉及电力电子领域，包括以下步骤：1)粉磨：将铝矾土、高岭土、长石、堇青石、氧化钛投入球磨机，球磨20‑30小时；2)搅拌：加入水玻璃、分散剂、消泡剂、水、乙醇，搅拌均匀；3)陈化：过10‑12目筛，陈腐熟化12‑15小时；4)成型：喷雾造粒，并压力成型成生坯，生坯体积密度为2.9‑3.1g/cm3；5)焙烧：生坯在1100‑1300℃的保护气氛中烧成，保温2‑3小时，冷却至室温；6)抛光：烧成物的表面抛光；7)喷涂：喷涂金属电极膜；本发明制得成品可靠性高，不易失效，耐高压，无感，化学性能、热稳定性等各项性能稳定，综合性能良好，且生产工艺简单易实施，利于大规模推广。

Description

一种陶瓷电阻的制备方法
技术领域
本发明涉及电力电子领域，具体涉及一种陶瓷电阻的制备方法。
背景技术
传统电阻的主要种类为线绕电阻和膜类电阻，均将导电材料附在绝缘瓷上，有效体积小。其中，线绕电阻匝间距有限，不能耐高电压，电感大，耐大电流、高能量能力有限；膜类电阻电流断面小，耐冲击能力和可靠性也不高。线绕电阻和膜类电阻绝缘体和电阻体均为分别制成，然后再联结，工艺繁琐复杂。
目前，传统电阻已远远不能满足现代技术的要求，需要一种可靠性高，不易失效，耐高压，无感，化学性能、热稳定性等各项性能稳定，综合性能良好，生产工艺简单易实施的陶瓷电阻。
发明内容
本发明提供一种陶瓷电阻的制备方法，以解决现有技术不足。
为解决上述问题，本发明采用的技术方案如下：
一种陶瓷电阻的制备方法，包括以下步骤：
1)粉磨：以重量计，在球磨机中投入铝矾土40-60份、高岭土5-15份、长石2-6份、堇青石10-20份、氧化钛5-10份，球磨20-30小时，出磨，得到粉状混合物；
2)搅拌：取步骤1)粉磨得到的粉状混合物，加入水玻璃2-4份、分散剂1-3份、消泡剂1-3份、水5-10份、乙醇1-3份，搅拌均匀，得到混合浆料；
3)陈化：取步骤2)搅拌得到的混合浆料，过10-12目筛，陈腐熟化12-15小时，得到陈化物；
4)成型：将步骤3)陈化得到的陈化物进行喷雾造粒，并压力成型成生坯，生坯体积密度为2.9-3.1g/cm3；
5)焙烧：将步骤4)成型得到的生坯在1100-1300℃的保护气氛中烧成，保温2-3小时，烧成周期大于20小时，冷却至室温，得到烧成物；
6)抛光：将步骤5)焙烧得到的烧成物的表面抛光，得到抛光体；
7)喷涂：将步骤6)抛光得到的抛光体喷涂金属电极膜，即得成品。
作为优选地，所述步骤2)搅拌中的分散剂为均聚物、氧化均聚物、乙烯－丙烯酸共聚物、乙烯－醋酸乙烯共聚物、低分子离聚物的一种或多种。
作为优选地，所述步骤2)搅拌中的消泡剂为聚氧丙烯氧化乙烯甘油醚。
综上所述，由于采用了上述技术方案，本发明的有益效果是：
本发明制得成品可靠性高，不易失效，耐高压，无感，化学性能、热稳定性等各项性能稳定，综合性能良好，且生产工艺简单易实施，利于大规模推广。
具体实施方式
本说明书中公开的所有特征，除了互相排斥的特征和/或步骤以外，均可以以任何方式组合。
实施例1
一种陶瓷电阻的制备方法，包括以下步骤：
1)粉磨：以重量计，在球磨机中投入铝矾土40份、高岭土5份、长石2份、堇青石10份、氧化钛5份，球磨20小时，出磨，得到粉状混合物；
2)搅拌：取步骤1)粉磨得到的粉状混合物，加入水玻璃2份、分散剂1份、消泡剂1份、水5份、乙醇1份，搅拌均匀，得到混合浆料；
3)陈化：取步骤2)搅拌得到的混合浆料，过10目筛，陈腐熟化12小时，得到陈化物；
4)成型：将步骤3)陈化得到的陈化物进行喷雾造粒，并压力成型成生坯，生坯体积密度为2.9g/cm3；
5)焙烧：将步骤4)成型得到的生坯在1100℃的保护气氛中烧成，保温2小时，烧成周期20小时，冷却至室温，得到烧成物；
6)抛光：将步骤5)焙烧得到的烧成物的表面抛光，得到抛光体；
7)喷涂：将步骤6)抛光得到的抛光体喷涂金属电极膜，即得成品。
所述步骤2)搅拌中的分散剂为均聚物、氧化均聚物和乙烯－丙烯酸共聚物的混合物。
所述步骤2)搅拌中的消泡剂为聚氧丙烯氧化乙烯甘油醚。
本实施例制得成品可靠性高，不易失效，耐高压，无感，化学性能、热稳定性等各项性能稳定，综合性能良好，且生产工艺简单易实施，利于大规模推广。
实施例2
一种陶瓷电阻的制备方法，包括以下步骤：
1)粉磨：以重量计，在球磨机中投入铝矾土60份、高岭土15份、长石6份、堇青石20份、氧化钛10份，球磨30小时，出磨，得到粉状混合物；
2)搅拌：取步骤1)粉磨得到的粉状混合物，加入水玻璃4份、分散剂3份、消泡剂3份、水10份、乙醇3份，搅拌均匀，得到混合浆料；
3)陈化：取步骤2)搅拌得到的混合浆料，过12目筛，陈腐熟化15小时，得到陈化物；
4)成型：将步骤3)陈化得到的陈化物进行喷雾造粒，并压力成型成生坯，生坯体积密度为3.1g/cm3；
5)焙烧：将步骤4)成型得到的生坯在1300℃的保护气氛中烧成，保温3小时，烧成周期24小时，冷却至室温，得到烧成物；
6)抛光：将步骤5)焙烧得到的烧成物的表面抛光，得到抛光体；
7)喷涂：将步骤6)抛光得到的抛光体喷涂金属电极膜，即得成品。
所述步骤2)搅拌中的分散剂为均聚物和氧化均聚物的混合物。
所述步骤2)搅拌中的消泡剂为聚氧丙烯氧化乙烯甘油醚。
本实施例制得成品可靠性高，不易失效，耐高压，无感，化学性能、热稳定性等各项性能稳定，综合性能良好，且生产工艺简单易实施，利于大规模推广。
实施例3
一种陶瓷电阻的制备方法，包括以下步骤：
1)粉磨：以重量计，在球磨机中投入铝矾土50份、高岭土10份、长石4份、堇青石15份、氧化钛7份，球磨25小时，出磨，得到粉状混合物；
2)搅拌：取步骤1)粉磨得到的粉状混合物，加入水玻璃3份、分散剂2份、消泡剂2份、水7份、乙醇2份，搅拌均匀，得到混合浆料；
3)陈化：取步骤2)搅拌得到的混合浆料，过11目筛，陈腐熟化14小时，得到陈化物；
4)成型：将步骤3)陈化得到的陈化物进行喷雾造粒，并压力成型成生坯，生坯体积密度为3g/cm3；
5)焙烧：将步骤4)成型得到的生坯在1200℃的保护气氛中烧成，保温2.5小时，烧成周期22小时，冷却至室温，得到烧成物；
6)抛光：将步骤5)焙烧得到的烧成物的表面抛光，得到抛光体；
7)喷涂：将步骤6)抛光得到的抛光体喷涂金属电极膜，即得成品。
所述步骤2)搅拌中的分散剂为乙烯－醋酸乙烯共聚物和低分子离聚物的混合物。
所述步骤2)搅拌中的消泡剂为聚氧丙烯氧化乙烯甘油醚。
本实施例制得成品可靠性高，不易失效，耐高压，无感，化学性能、热稳定性等各项性能稳定，综合性能良好，且生产工艺简单易实施，利于大规模推广。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (3)

1.一种陶瓷电阻的制备方法，其特征在于，包括以下步骤：
1)粉磨：以重量计，在球磨机中投入铝矾土40-60份、高岭土5-15份、长石2-6份、堇青石10-20份、氧化钛5-10份，球磨20-30小时，出磨，得到粉状混合物；
2)搅拌：取步骤1)粉磨得到的粉状混合物，加入水玻璃2-4份、分散剂1-3份、消泡剂1-3份、水5-10份、乙醇1-3份，搅拌均匀，得到混合浆料；
3)陈化：取步骤2)搅拌得到的混合浆料，过10-12目筛，陈腐熟化12-15小时，得到陈化物；
4)成型：将步骤3)陈化得到的陈化物进行喷雾造粒，并压力成型成生坯，生坯体积密度为2.9-3.1g/cm3；
5)焙烧：将步骤4)成型得到的生坯在1100-1300℃的保护气氛中烧成，保温2-3小时，烧成周期大于20小时，冷却至室温，得到烧成物；
6)抛光：将步骤5)焙烧得到的烧成物的表面抛光，得到抛光体；
7)喷涂：将步骤6)抛光得到的抛光体喷涂金属电极膜，即得成品。
2.如权利要求1所述的陶瓷电阻的制备方法，其特征在于：所述步骤2)搅拌中的分散剂为均聚物、氧化均聚物、乙烯－丙烯酸共聚物、乙烯－醋酸乙烯共聚物、低分子离聚物的一种或多种。
3.如权利要求1所述的陶瓷电阻的制备方法，其特征在于：所述步骤2)搅拌中的消泡剂为聚氧丙烯氧化乙烯甘油醚。
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112824344A (zh) * 2020-07-31 2021-05-21 北京七一八友晟电子有限公司 圆柱型碳陶瓷固定电阻器及其制造方法
CN114804834A (zh) * 2021-01-28 2022-07-29 上海上纳电工器材有限公司 一种低温烧结碳复合陶瓷线性电阻及其制备方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112824344A (zh) * 2020-07-31 2021-05-21 北京七一八友晟电子有限公司 圆柱型碳陶瓷固定电阻器及其制造方法
CN114804834A (zh) * 2021-01-28 2022-07-29 上海上纳电工器材有限公司 一种低温烧结碳复合陶瓷线性电阻及其制备方法

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