滑动轴承. 多层金属滑动轴承. 第3部分:无损穿透检测

[中文适用范围]： 本文件规定了用于确定轴承滑动表面的粘结缺陷和不连续性的无损渗透测试。 穿透法用于检测 a) 多层滑动轴承端面和接合面的轴承背衬/轴承材料之间的过渡区域中 ISO 4386-1 规定的超声波检测方法无法检测到的粘结缺陷，和b) 轴承滑动表面的不连续性。 渗透法原则上适用于成品多层滑动轴承。 粘结测试通常在铸造多层滑动轴承上进行，其背衬由钢、铸钢或铸青铜组成。 它还可以用作非生产方法，以帮助检测其他轴承材料类型的制造过程缺陷。 无法测试或难以镀锡的轴承背衬，如珠光体铸铁、防锈钢和铸铝，无法进行测试，因为轴承材料和轴承背衬之间不可能有粘合。 [外文原描述]： This document specifies a non‑destructive penetrant testing for determining bond defects and discontinuities in the sliding surface of the bearing. The penetration method is used to detect a) bond defects in the transitional area between the bearing backing/bearing material on the end faces and joint faces of multilayer plain bearings which cannot be detected by the ultrasonic testing method specified in ISO 4386‑1, and b) discontinuities in the sliding surface of the bearing. The penetration method is applicable, in principle, to finished multilayer plain bearings. The bond test is usually carried out on cast multilayer plain bearings, with a backing consisting of steel, cast steel or cast bronze. It can also be used as a non-production method to aid detection of manufacturing process defects with other bearing material types. Bearing backings which cannot be tin-plated, or only with difficulty, such as perlitic cast iron, rust-resistant steel and cast aluminium, cannot be tested since no bond is possible between the bearing material and bearing backing.