CN106187110A - 一种420kn等级以上高性能增韧瓷质绝缘子及其制造工艺技术的研究 - Google Patents

一种420kn等级以上高性能增韧瓷质绝缘子及其制造工艺技术的研究 Download PDF

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CN106187110A
CN106187110A CN201610511571.0A CN201610511571A CN106187110A CN 106187110 A CN106187110 A CN 106187110A CN 201610511571 A CN201610511571 A CN 201610511571A CN 106187110 A CN106187110 A CN 106187110A
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刘义敏
陈招明
陈利民
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Jiangxi Gao Qinag Ceramic Industor Group Co Ltd
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Abstract

一种420KN等级以上高性能增韧瓷质绝缘子及其制造工艺技术的研究，主要工艺组成：选用高岭土、石英矿、水云母、铝钒土、锆英石、甲长石、废弃物、稳定剂等，精确计量配料经球磨、制泥、颗粒级配、真空、成型、干燥、氧化焰焙烧1300℃成瓷、检测、入库出厂。本发明以氧化锆(二氧化锆)生成核相变和应力诱发相变，产生吸收能量机制，以取代相变增韧的效果。采用湿法成型技术工艺，并采用XRD方法对氧化焰微波焙烧热处理工艺，制取二氧化锆增韧氧化铝陶瓷制品。

Description

一种420KN等级以上高性能增韧瓷质绝缘子及其制造工艺技 术的研究
技术领域
本发明涉及《国家重点支持的高新技朮领域》——新材料——无机非金属材料——特殊用途的高性能陶瓷结构件制备技术，具体涉及一种420KN等级以上高性能增韧瓷质绝缘子及其制造工艺技术的研究。
背景技术
众所周知，在国际及我国随着国家电力工业的发展，向着远距离、大容量、超高压、特高压直流输电的智能方向发展，对传统绝缘子提出了高强度、耐污秽、大爬距、耐电弧、高体积电阻的要求。而传统瓷质绝缘子已无法满足特高压直流输电线路的建设所需。
发明内容
本发明的目的，在于解决原有工艺技术不足，不能满足特高压直流输电线路电瓷元件建设所需，提供一种420KN等级以上高性能增韧瓷质绝缘子及其制造工艺技术的研究。
本发明的工艺技术与方法方案如下。
所述的一种420KN等级以上高性能增韧瓷质绝缘子及其制造工艺技术的研究，其原料的质量比为：高岭土10-15％、石英矿5-8％、水云母3-6％、铝钒土45-50％、锆英石15-20％、甲长石5-8％、废弃物4-6％。在生产工艺中，必须严格控制主要原料的配比及化学成份含量，充许误差正负0.3-0.5％，配料采用智能自动计量仪，精确度为100％。
主要工艺组成：选用上述原料，精确计量配料，经球磨、制泥、颗粒级配、真空、成型、干燥、氧化焰焙烧1300℃成瓷、检测、入库出厂。所述的氧化焰焙烧温度为25℃-100℃(半个小时)、100℃-900℃(4个半小时)、900℃-1250℃(3个小时)、1250℃-1300℃(2个小时)逐渐提升，最后成瓷。
所述产品的主要化学组成：SiO2 35-44％,Al203 40-49％,ZrO2 15-24％,Fe2O30.02-0.05％。
所述的一种420KN等级以上高性能增韧瓷质绝缘子及其制造工艺技术的研究，研究锆英石与铝矾土配比结合的补强机理,将SiC晶须、氧化铝颗粒的混合,使各相达到良好最佳的分散比率。
所述的一种420KN等级以上高性能增韧瓷质绝缘子及其制造工艺技术的研究，以氧化锆(二氧化锆)生成核相变和应力诱发相变，产生吸收能量机制，以取代相变增韧的效果。采用湿法成型技术工艺，制取二氧化锆增韧氧化铝陶瓷制品,重点研究了高性能湿法成型泥料的制备方法及坯体均匀性的获得途径,分别研究了分散剂、pH值、氧化锆含量、总固相含量、有机单体含量对泥料性能的影响,以及催化剂加入量和固化反应温度对固化反应速率及成型坯体均匀性的影响,最后还对湿法成型和其它成型制品的性能进行了对比研究
所述的一种420KN等级以上高性能增韧瓷质绝缘子及其制造工艺技术的研究，研究了晶须定向排布工艺及其复合材料的力学性能。通过湿法成型，较好地完成了晶须的一维定向排布或择优取向。结果表明，晶须定向排布能同时较大幅度地提高复合材料的抗弯强度和断裂韧性，充分地发挥了晶须的增韧补强作用。
所述的一种420KN等级以上高性能增韧瓷质绝缘子及其制造工艺技术的研究，采用XRD方法对氧化焰微波焙烧热处理工艺和方法前后，具有不同含量的氧化钇稳定二氧化锆增韧氧化铝陶瓷的相变行为进行了研究。实验结果表明氧化焰微波焙烧热处理工艺和方法过程中,低含量Y_2O_3稳定ZTA陶瓷表面几乎皆为单斜相,当Y_2O_3含量超过2mol％时则四方相含量剧增,其原因在于ZTA陶瓷氧化焰微波焙烧热处理工艺和方法，引起体积性加热造成较大的内外温差,使得内应力缓解了基质对ZrO_2的约束而发生t—ZrO_2＝m—ZrO_2相变。同时如果调节稳定剂含量适中(如2mol％Y_2O_3),并对瓷体进行微波特殊处理后可获得较高的断裂相变量,有利于相变增韧陶瓷力学性能改善及损伤部件的性能。

Claims (6)

1.一种420KN等级以上高性能增韧瓷质绝缘子及其制造工艺技术的研究,主要工艺组成：选用高岭土、石英矿、水云母、铝钒土、锆英石、甲长石、废弃物、稳定剂等，精确计量配料经球磨、制泥、颗粒级配、真空、成型、干燥、氧化焰焙烧最终至1300℃成瓷、检测、入库出厂。
2.根据权利要求1所述的一种420KN等级以上高性能增韧瓷质绝缘子及其制造工艺技术的研究，其特征在于：其原料的质量比为：高岭土10-15％、石英矿5-8％、水云母3-6％、铝钒土45-50％、锆英石15-20％、甲长石5-8％、废弃物4-6％。
3.根据权利要求1所述的一种420KN等级以上高性能增韧瓷质绝缘子及其制造工艺技术的研究，所述成瓷产品的主要化学组成：SiO2 35-44％,Al203 40-49％,ZrO2 15-24％,Fe2O3 0.02-0.05％。
4.根据权利要求1所述的一种420KN等级以上高性能增韧瓷质绝缘子及其制造工艺技术的研究，其特征在于：以氧化锆或二氧化锆生成核相变和应力诱发相变，产生吸收能量机制，以取代相变增韧的效果。
5.根据权利要求1所述的一种420KN等级以上高性能增韧瓷质绝缘子及其制造工艺技术的研究，其特征在于：采用超细晶粒及工艺和方法确保四方——单斜晶相的转化相变，具有高韧性等优良的机械性能；所述的氧化焰焙烧温度为25℃-100℃-900℃-1250℃-1300℃逐渐提升，最后成瓷。
6.根据权利要求1所述的一种420KN等级以上高性能增韧瓷质绝缘子及其制造工艺技术的研究，其特征在于：采用湿法成型技术工艺，制取二氧化锆增韧氧化铝陶瓷制品。
CN201610511571.0A 2016-07-01 2016-07-01 一种420kn等级以上高性能增韧瓷质绝缘子及其制造工艺技术的研究 Pending CN106187110A (zh)

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Cited By (4)

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CN108409305A (zh) * 2018-03-21 2018-08-17 武汉理工大学 一种用于极寒冷地区陶瓷绝缘子的制备方法
CN109095900A (zh) * 2018-10-31 2018-12-28 广州供电局有限公司 氧化铝复相陶瓷绝缘件及其制备方法
CN110676001A (zh) * 2019-09-20 2020-01-10 江西华洋电瓷制造有限公司 一种复合材料超多伞裙绝缘子组合物及其制造方法
CN114380575A (zh) * 2022-01-14 2022-04-22 醴陵市高力特电瓷电器有限公司 一种高韧性圆锥悬式瓷绝缘子及其制备方法

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CN108409305A (zh) * 2018-03-21 2018-08-17 武汉理工大学 一种用于极寒冷地区陶瓷绝缘子的制备方法
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CN110676001A (zh) * 2019-09-20 2020-01-10 江西华洋电瓷制造有限公司 一种复合材料超多伞裙绝缘子组合物及其制造方法
CN114380575A (zh) * 2022-01-14 2022-04-22 醴陵市高力特电瓷电器有限公司 一种高韧性圆锥悬式瓷绝缘子及其制备方法

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