论文部分内容阅读
一、前言液体渗透探伤法,是最早的非破坏性检验方法之一;它已有五十多年的历史。30年代以后,由于机械工业尤其是航空工业的迅速发展,以及非磁性材料的激增,促使这一方法发展为染料和荧光渗透法。1941年荧光渗透法和1950年后乳化渗透体系的出现,大大地提高了探伤灵敏度。目前,液体渗透法的渗透液体系及操作方法是。根据被检查物的材质、规格,形状以及缺陷种类和大小来选择的。据报导这种方
I. Introduction Liquid penetrant flaw detection method is one of the earliest nondestructive testing methods; it has a history of more than 50 years. After the 1930s, due to the rapid development of the machinery industry, especially the aviation industry, and the surge of non-magnetic materials, this method was developed into the dye and fluorescence penetration method. Fluorescence penetration in 1941 and the appearance of emulsion infiltration system after 1950 greatly improved the detection sensitivity. At present, the liquid permeation method permeate system and method of operation is. According to the inspection of the material, size, shape and defect types and sizes to choose. It is reported that this side