着色探伤已广泛用于化工企业压力容器焊缝表面质量检测,它具有设备简单、直感性强、便于高空及罐内流动作业,能不受工件几何形状所限制,客观反映焊缝表面存在的各种缺陷,是无损检测五大常规方法之一。近年来,我周无损检测技术发展很快,大大推动了着色探伤剂的开发研制工作,已从自制、自配发展到初具规模系列产品,保证无损检测应用。但对着色探伤剂 Coloring inspection has been widely used in chemical industry, pressure vessel weld surface quality testing, it has a simple equipment, strong sense of straightforward, easy to operate at high altitude and tank flow, can not be limited by the workpiece geometry, the objective reflect the existence of the weld surface Defect, is one of the five general methods of non-destructive testing. In recent years, I week nondestructive testing technology developed rapidly, greatly promoted the development of colorant testing agent has been developed from self-made, self-developed to the beginning of the scale of products to ensure non-destructive testing applications. But on the color flaw detector