该文件为德国超声波检验规程
期的文件,其最新版本适用于本标准;凡是注明了日期的文件,只有当通过修订或再版而引用进来时,才适用于本标准。
EN 473, Qualification and certification of NDT personnel - General principles
EN 473 无损探伤(NDT)人员的资格和证书——一般原则
pr EN 1330-4, Non destructive testing - Terminology - Part 4 : Terms used in ultrasoning testing
pr EN 1330-4,无损探伤术语——第四部分:用于超声检验的术语
3 Terms and definitions 第三章 术语和定义
For the purposes of this European Standard, the definitions given in pr EN 1330-4 and the following definitions apply:
为了确切地理解本标准,本欧洲标准采用下列术语定义和pr EN 1330-4定义的术语:
3.1 internal discontinuity 内部裂纹
any imperfection lying within the thickness of the flat product, e.g. planar or laminar imperfection, single-plane or multi-plane inclusion bands or clusters
任何存在于钢板产品厚度内的缺陷,例如平面或薄片状的缺陷,单层的或多层的,无论带状还是丛生状。 NOTE It is referred in the text as discontinuity. 说明 标准中称为裂纹。
3.2 defect 缺陷
unacceptable internal discontinuity, i.e. exceeding the specified maximum size or population density limits 不可接受的内部裂纹,也就是裂纹尺寸超出了规定的最大限度或密度分布超出了极限数量。
3.3 Population density 分布密度
the number of individual internal discontinuities of a size greater than a specified minimum size and less than a specified maximum size per specified area of body or length of edge zone
在规定的区域或一定的棱边长度范围内,那些大于最小尺寸、小于最大尺寸的单一裂纹的数量。
3.4 manual and assisted manual testing 手动检测和辅助手动检测
testing by an operator applying an ultrasonic probe, or probes, to the flat product surface, manually executing the appropriate scanning pattern on the flat product surface and visually assessing ultrasonic signal indications on the electronic equipment screen either by direct viewing or by built-in signal amplitude alarm devices
操作者使用一个或多个超声波探头放在钢板表面进行检测,手动进行适当的试样扫描,直接或者通过内置的信号振幅报警装置观察电子设备上的超声波信号显示器。
3.5 automatic and semi-automatic testing 自动或半自动检测
testing using a mechanized means of applying the ultrasonic probe or probes to, and executing the appropriate scanning pattern on the flat product surface, together with ultrasonic signal indication evaluation by electronic means. Such testing can be either fully automatic with no operator involvement or semi-automatic when the operator performs basic equipment operation functions
采用机械化装置并配备一个电子的超声波信号识别评价系统,用一个或多个超声波探头放在钢板表面进行
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