大容积纤维缠绕气瓶的X射线数字成像检测方法研究  

RESEARCH ON X-RAY DIGITAL IMAGING DETECTION METHOD FOR LARGE VOLUME FIBER-WOUND GAS CYLINDER

作　　者：黄良[1] 金明哲[1] 何琦 王骞 柴森 HUANG Liang;JIN Ming-zhe;HE Qi;WANG Qian(China Special Equipment Inspection and Research Institute,Beijing 100029,China)

机构地区：[1]中国特种设备检测研究院,北京100029 [2]不详

出　　处：《复合材料科学与工程》2020年第3期84-89,共6页Composites Science and Engineering

基　　金：国家重点研发计划“移动式承压类特种设备高效检测、监测与评价关键技术研究”(2017YFC0805604)。

摘　　要：为了验证数字射线对大容积钢内胆纤维缠绕气瓶主要缺陷的检出能力,并给出检出能力的定量数据,本文针对气瓶在使用和制造过程中可能出现的纤维层断裂、划伤、气孔及内胆腐蚀、裂纹等缺陷,在纤维层和内胆上制作了系列刻槽和平底孔等人工缺陷,以模拟上述自然缺陷,通过优化后的透照参数,拍摄人工试样影像。检测结果表明,数字射线检测方法能够检出纤维层上深度为0.25 mm的纵向刻槽和深度为0.5 mm的环向刻槽,同时还能检出内胆上深度为0.25 mm的纵、环向刻槽等人工缺陷。由此证明了数字射线检测能用于大容积钢内胆纤维缠绕气瓶危害较大缺陷的初期检测,为其安全使用提供有力支持。In order to verify the detection ability of digital ray for the main defects of large volume steel liner-wound gas cylinders,and to give quantitative data of detection ability,this paper is aimed at the breakage and scratch of fiber layer which may occur during the use and manufacture of gas cylinders.Defects such as pores and liner corrosion,cracks,etc.,and artificial defects such as series of grooves and flat bottom holes were made on the fiber layer and the inner liner to simulate the above-mentioned natural defects.And the artificial sample images were taken through the optimized transillumination parameters.The test results show that the digital ray detection method can detect the longitudinal grooving with a depth of 0.25 mm on the fiber layer and the circumferential groove with a depth of 0.5 mm,and also detect the longitudinal and circumferential grooves of the 0.25 mm depth on the inner liner.This proves that digital ray detection can be used for the initial detection of large-volume steel liner-wrapped cylinders,which provides strong support for safe use.

关 键 词：纤维复合材料 气瓶 X射线数字成像 

分 类 号：TB332[一般工业技术—材料科学与工程]