Manufacturing method of polyethylene pipe image quality indicator and image quality indicator obtained by the same

• Main Authors: DING JINSEN, TU XIN, SHAO XIANG, LI ZHI, ZHOU JIESHENG, XIN MINGLIANG, ZHENG PEIGEN, DA JING, LU BING, WU WENDONG, CHEN JIASHAN, ZHANG SHENGJUN
• Format: Patent
• Language: Chinese; English
• Published: 31.07.2018
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses a manufacturing method of a polyethylene pipe image quality indicator and the image quality indicator obtained by the same. The method includes the steps that a pipe segment iscut from a to-be-detected polyethylene pipe and defined as an image quality indicator forming blank; a spatial resolution detection area is divided from the inner wall of the image quality indicatorforming blank, and then a regular detection step structure is prepared in the spatial resolution detection area through a precision machining method; a plate thickness resolution detection area is divided form the spatial resolution detection area, and then a regular detection hole structure is prepared in the plate thickness resolution detection area through a precision machining method. Thus, the manufactured image quality indicator can be applied to nondestructive detection of polyethylene pipes, and the sensitivity of radiography on polyethylene pipes is effectively controlled. 本发明公开了种聚乙烯管道像质计制造方法及由该方法获得的像质计，包括如下步骤