塑料科技2025，Vol.53Issue(6)：158-163,6.DOI:10.15925/j.cnki.issn1005-3360.2025.06.027
基于主动红外热波技术的环氧材料浅表气隙缺陷检测技术研究
Research on Shallow Air Gap Defect Detection Technology of Epoxy Materials Based on Active Infrared Thermal Wave Technology
摘要
Abstract
In the production process of epoxy bushing insulators used in gas-insulated switchgear(GIS),issues such as the uneven mixing of epoxy resin with curing agents and high viscosity often lead to the formation of bubble defects.To address these issues,based on the active infrared heat wave detection technology,a simplified thermal conduction simulation model of epoxy materials containing bubble defects was established,and the influence of the diameter,depth and excitation parameters of bubble defects on the detection results was simulated and analyzed.The results showed that the surface temperature at the defect location of the epoxy material decreased as the defect depth increased and increased as the defect diameter increased.In the simulation model,the defect depth increased from 0.3 mm to 1.9 mm,the surface temperature at the defect location of the epoxy material decreased by 5.2％,and the temperature difference decreased from 2.14℃ to 0.02℃.Conversely,the bubble defect diameter increased from 0.2 mm to 1.0 mm,the surface temperature at the defect location of the epoxy material increased by 5％,and the temperature difference increased from 0.10℃ to 2.14℃.Based on the simulation results,the recommended thermal excitation power for defect detection was 10 000 W/m2,with an excitation time of 6 s.The research results provide a new technical scheme for the factory detection of epoxy basin insulators,which can effectively improve the detection efficiency and identification accuracy.关键词
环氧盆式绝缘子/主动红外热波技术/气泡缺陷/无损检测/红外热成像Key words
Epoxy bushing insulator/Active infrared thermal wave technology/Bubble defect/Nondestructive testing/Infrared thermography分类
信息技术与安全科学引用本文复制引用
李波,蒲曾鑫,余泊羲,赵小鱼,牧灏,杨昊..基于主动红外热波技术的环氧材料浅表气隙缺陷检测技术研究[J].塑料科技,2025,53(6):158-163,6.基金项目
国家自然科学基金资助项目(52007138) （52007138）
中国南方电网有限责任公司创新项目(GZKJXM20222398) （GZKJXM20222398）
