静电喷涂无铅玻璃釉在金属氧化物电阻片制造中的应用研究  

Application of Electrostatic Spraying Lead-free Glass Glaze in the Manufacture of Metal Oxide Varistors

作　　者：赵冬一 ZHAO Dongyi(ABB Xiamen Surge Anestor Co.,Ltd.,Xiamen 361000,China)

机构地区：[1]厦门ABB避雷器有限公司,福建厦门361000

出　　处：《电瓷避雷器》2022年第3期148-153,共6页Insulators and Surge Arresters

摘　　要：笔者深入研究了采用静电喷涂无铅玻璃釉工艺来制备金属氧化物电阻片的制造技术。研究内容包括:1)在一定配方比例的无铅玻璃釉粉料基础上,采用高速离心喷雾造粒制备所需要静电喷涂粉料;2)采用流化床静电喷涂机喷涂无铅玻璃粉料工艺;3)无铅玻璃粉料的热处理玻化;4)性能试验:以D42 mm×27 mm规格电阻片为例,可以满足4/10、120 kA的大电流冲击3次。从研究的结果来看:1)在金属氧化物电阻片制造中应用静电喷涂无铅玻璃釉,可以实现“无铅”化环保制造过程。2)材料的利用率达到85%,可以满足节约原料的目的。静电喷涂无铅玻璃釉在金属氧化物电阻片制造技术具有强大生命力,可以促进避雷器行业的可持续、快速发展。Electrostatic spraying lead-free glass glaze in manufacturing technology of metal oxide varistors was studied. The research contents include: 1) on the basis of lead-free glass glaze powder with certain formula ratio, electrostatic spraying powder is prepared by high-speed centrifugal spray granulation;2) adopt fluidized bed electrostatic spraying machine to spray lead-free glass powder;3) vitrification in heat treatment of lead-free glass powder;4) performance test: taking D42 mm×27 mm as an example, it can meet the requirement of 3 shots of high current impulse of 4/10 μs, 120 kAp. The research results show that : 1) the application of electrostatic spraying lead-free glass glaze in the manufacture of metal oxide resistor can realize the "lead-free" and environmental protection manufacturing process. 2) the utilization rate of materials reaches 85%, which can meet the purpose of material saving. Electrostatic spraying lead-free glass glaze plays a vital role in the manufacturing technology of metal oxide varistors, which can promote the sustainable and rapid development of the surge arresters industry.

关 键 词：ZnO非线性压敏电阻 静电喷涂 无铅玻璃釉 绿色环保 

分 类 号：TM54[电气工程—电器] TM862