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该表系按《GB3323-82》设计而成,内容包括评定点状(包括气孔、点状夹渣、钨夹渣)缺陷等级及条状(单个条状夹渣)缺陷等级,是从事射线工作人员的一种袖珍工具。 “速查表”分内转盘与外盘。使用时将需查的母材厚度(mm)对准(转动内盘)外盘面箭头“↓”所指的框内,即为该母材厚度各级所允许的气孔点数限量(包括点状夹渣、钨夹渣);对应于背面“面”框内,即为该母材厚度各级允许的单个条状夹渣的长度。该表可同时使用,即点状、条状缺陷同时存在时,查出它们所对应各自的级别;也可分开使用,即点状、条状缺陷单独存在时的级别。
The table is designed according to “GB3323-82”, including the assessment of point shape (including stomatal, punctual slag, tungsten slag) defect level and strip (single strip slag) defect level, is engaged in ray work A pocket-sized tool for people. “Quick Table ” sub-turntable and external disk. The thickness of the base metal to be checked (mm) at the time of use (turning the inner disk) The frame indicated by the arrow “↓” on the outer disk surface shall be the limit of the number of air holes allowed at each level of the base metal thickness Slag slag, tungsten slag); corresponding to the back of the “surface” box, that is, the thickness of the base metal allows the length of a single strip of slag. The table can be used at the same time, that is, dot-like, stripe defects exist at the same time, find out their corresponding level; also can be used separately, that is, dot-shaped, stripe defects exist alone level.