标准编号：ISO 4386-1:2019
中文名称：滑动轴承 金属多层滑动轴承 第1部分：厚度不小于0.5毫米结合处的无损超声检测
英文名称：Plain bearings — Metallic multilayer plain bearings — Part 1: Non-destructive ultrasonic testing of bond of thickness greater than or equal to 0,5 mm
发布日期：2019-04
标准范围
This document specifies an ultrasonic testing method for determining bond defects between the bearing
metal and the backing. The test can be performed on metallic multilayer plain bearings consisting of
steel- or copper-based material backings lined with bearing metal based on lead and tin, with layer
thicknesses greater than or equal to 0,5 mm. For cast iron backings, this document is applicable with
restrictions.
The ultrasonic signal reflected by the bond interface between the bearing metal and the backing is
used to determine bonding defects.
Ultrasonic testing is not possible on edge zones of sliding surface, flange sides, joint areas, oil holes,
grooves, etc. in a range of less than half the diameter of the ultrasonic probe because of undefined
reflections. The same applies to bearings with dovetail keying grooves at the bond. Ultrasonic testing of
bond does not apply along the edges of the dovetails.
Evaluation of the bond on the visible transition from the backing to the bearing metal (on end faces or
joint faces) is only practicable by the penetrant testing method specified in ISO 4386-3.
This document only describes in detail the pulse-echo method. Within the meaning of this document,
the ultrasonic method only permits a qualitative evaluation of the bonding and not a quantitative
determination of the bond strength. The ultrasonic bond test differs only between bond and bond defect.
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