无损检测
無損檢測
무손검측
NONDESTRUCTIVE TESTING
2015年
8期
30-34
,共5页
聚乙烯管道%熔接头%超声检测%相控阵技术%超声仿真%工艺优化
聚乙烯管道%鎔接頭%超聲檢測%相控陣技術%超聲倣真%工藝優化
취을희관도%용접두%초성검측%상공진기술%초성방진%공예우화
Polyethylene pipe%Electro-fusion joint%Ultrasonic testing%Phased array technique%Ultrasonic simulation%Technology optimization
电熔焊接是聚乙烯管道的主要连接方式之一，针对聚乙烯电熔焊接头的超声相控阵检测，利用CIVA软件对相控阵声场进行建模仿真，优化分析相控阵参数；根据优化后的相控阵参数研制探头，并进行聚乙烯管道电熔接头的检测试验。试验表明，研制的探头在合适的工艺参数条件下可以有效地检测出电熔接头的典型缺陷，提高了聚乙烯管道系统的本质安全性。
電鎔銲接是聚乙烯管道的主要連接方式之一，針對聚乙烯電鎔銲接頭的超聲相控陣檢測，利用CIVA軟件對相控陣聲場進行建模倣真，優化分析相控陣參數；根據優化後的相控陣參數研製探頭，併進行聚乙烯管道電鎔接頭的檢測試驗。試驗錶明，研製的探頭在閤適的工藝參數條件下可以有效地檢測齣電鎔接頭的典型缺陷，提高瞭聚乙烯管道繫統的本質安全性。
전용한접시취을희관도적주요련접방식지일，침대취을희전용한접두적초성상공진검측，이용CIVA연건대상공진성장진행건모방진，우화분석상공진삼수；근거우화후적상공진삼수연제탐두，병진행취을희관도전용접두적검측시험。시험표명，연제적탐두재합괄적공예삼수조건하가이유효지검측출전용접두적전형결함，제고료취을희관도계통적본질안전성。
Electro-fusion welding is a widely-used method of connecting polyethylene (PE)pipe.Considering typical characteristics of PE and special structure of PE electro-fusion joint,a nondestructive testing method of phased array ultrasonic technique was presented and the focusing performances of phased array acoustic field were analyzed.Following acoustic field simulation by CIVA software, the optimization analysis was conducted to determine the optimal phased array parameters,including array elements,array element size,deflection angle, ultrasonic frequency,etc.Special phased array probe was manufactured with the optimal parameters obtained previously,and experiments were performed to prove the effectiveness of the proposed technique.Results indicated that this technique could effectively detect typical defects in PE electro-fusion joints and ensure the safety of PE pipeline.
