Composite gas cylinders have the advantages of light weight,high strength,good corrosion resistance and fatigue performance,but the current national standards for composite gas cylinders are mainly based on macroscopic inspection,searching for internal and external surface defects.Inner defects of winding layer cannot be detected.In this paper,the influence of inner defects on composite gas cylinders was analyzed.Three kinds of testing methods for inner defects of winding layer were compared to provide reference for periodic inspection of composite gas cylinders.
关键词
复合材料气瓶/缠绕层/内部缺陷/检测方法
Key words
composite gas cylinder/winding layer/inner defect/testing method