高压开关设备用碳-陶瓷电阻侧面高阻层釉浆制备工艺研究  

Preparation technology of carbon-ceramic resistor side high resistance layer glaze slurry for high voltage switchgear

作　　者：陈蕊 李新刚 郝留成 张敬 许东杰 徐仲勋 王亚祥 李晓光 CHEN Rui;LI Xingang;HAO Liucheng;ZHANG Jing;XU Dongjie;XU Zhongxun;WANG Yaxiang;LI Xiaoguang(PINGGAO GROUP Co.,Ltd.,Pingdingshan 467001,China)

机构地区：[1]平高集团有限公司,河南平顶山467001

出　　处：《绝缘材料》2023年第4期17-21,共5页Insulating Materials

基　　金：国家电网有限公司科技项目(5500-202047407A-0-0-00)。

摘　　要：为了制得性能稳定的碳-陶瓷线性电阻片,本文对碳-陶瓷电阻制造中所用高阻层釉浆的制备进行系统的研究。首先对不同粘接剂制备的釉浆施釉工艺性进行对比,然后对浆料的混料时间、水料比进行系统研究,获得混料时间、水料比对釉浆黏度的影响规律,并最终确定最佳混料工艺参数。结果表明:采用左云黏土作为粘接剂时,釉浆具有较好的悬浮性和涂覆性,当左云黏土质量分数为15%时,釉浆工艺性较好,坯釉结合性好。高阻釉料及粘接剂混料的最佳工艺参数:采用左云黏土为粘合剂,黏土质量分数为15%,水料比为0.6∶1,球磨混料时间为1 h。涂覆高阻层的碳-陶瓷电阻的击穿场强比未涂覆时提高了78%,且分散性更小。In order to obtain carbon-ceramic linear resistor with stable performance,the preparation of high resistance layer glaze slurry used in the manufacturing of carbon-ceramic resistor was studied systematically in this paper.Firstly,the glazing technology of glaze slurry prepared by different binders was compared,then the mixing time and water material ratio of slurry were systematically studied to obtain the influence of mixing time and water material ratio on the viscosity of glaze slurry,and finally the optimal mixing process parameters were determined.The results show that the glaze slurry has good suspension and coating properties when the Zuoyun clay is used as binder.When the mass fraction of Zuoyun clay is 15%,the glaze slurry has good processability and adhesion.The optimum mixing process parameters of high resistance glaze and binder is as below:Zuoyun clay is used as binder,the mass fraction of clay is 15%,the ratio of water and material is 0.6∶1,and the mixing time of ball glaze is 1 h.The breakdown strength of carbon-ceramic resistors coated with high resistance layer is 78%higher than that of the uncoated resistors,and the dispersion is smaller.

关 键 词：碳陶瓷 电阻 高阻层 混料工艺 釉浆 

分 类 号：TM214[一般工业技术—材料科学与工程] TM545[电气工程—电工理论与新技术]