免费啪视频在线观看视频久

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聲測管檢測操作

聲測管檢測操作

日期:2020-05-30 10:17:27

聲測管檢測操作

①母材的檢驗:聲測管檢驗前應測量管壁厚度,至少每隔90°測量一點,以便檢驗時參考。將無缺陷處二次底波調節到熒光屏滿刻度做為檢測靈敏度;

②聲測管焊接接頭的檢驗:掃查靈敏度應不低于評定線(EL線)靈敏度,探頭的掃查速度不應超過150mm/s,掃查時相鄰兩次探頭移動間隔應保證至少有10%的重疊。
河北新邁實業鋼管
免费啪视频在线观看视频久
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