论文部分内容阅读
近年来随着我国科学技术的不断发展,对各种材料、部件及整机的质量要求也随之提高,因而无损检测的工作不断增加,检测方法也有了新的发展。长期以来 X 射线检测方法均是选用适当的电压电流的 X 线对零件进行一定时间透视,经曝光后的软片由暗室处理,然后对底片进行观察、判断和鉴别零件的内部质量情况,这样每次对零件 X 射线检测既费工费时又不
In recent years, with the continuous development of science and technology in our country, the quality requirements for all kinds of materials, components and complete machines have also increased. Therefore, the work of nondestructive testing has been continuously increasing, and the testing methods have also been developed. For a long time X-ray detection methods are selected appropriate voltage and current of the X-ray perspective of the parts for some time, the exposed film by the darkroom processing, and then the film was observed to determine and identify the internal parts of the quality of the situation, so each time X-ray detection of parts is time-consuming and not