Ultrasonic thickness gauge tso saib tus nqi distortion tshwm sim thiab ua rau
Ultrasonic thickness gauge nyob rau hauv cov ntaub ntawv siv, tshwj xeeb tshaj yog nyob rau hauv cov kev pab cuam cov cuab yeej saib xyuas, yog hais tias tus nqi ntawm distortion, deviation los ntawm lub tiag tiag thickness ntawm qhov tshwm sim, tshwm sim los ntawm lub pipeline (khoom siv) zais txaus ntshai tshwm sim, uas yog, raws li qhov tsis ncaj ncees lawm. cov ntaub ntawv los hloov cov yeeb nkab fittings, ua rau cov khoom pov tseg ntau heev. Raws li ob peb xyoos ntawm ultrasonic thickness ntsuas kev siv, yuav qhia tus nqi ntawm qhov tshwm sim ntawm distortion thiab yog vim li cas yog soj ntsuam raws li nram no:
1, tsis muaj tus nqi tso saib lossis tso saib tus nqi flashing tsis ruaj khov vim li cas tsom xam: qhov tshwm sim no nyob rau hauv cov khoom siv thiab cov kav dej ntsuas ib ntus, tom qab ntau qhov tshwm sim thiab cov ntaub ntawv txheeb xyuas, sau cov laj thawj yog raws li hauv qab no:
(1) qhov roughness ntawm lub workpiece yog loj heev, ua rau tsis zoo coupling ntawm lub sojntsuam thiab qhov chaw tiv tauj, lub reflection ntawm lub ncha yog tsawg, los yog txawm tsis tau txais lub ncha teeb liab. Feem ntau ntawm cov khoom siv hauv kev pabcuam thiab cov kav dej yog qhov chaw corrosion, thiab cov nyhuv coupling yog qhov tsis zoo.
(2) Lub vojvoog ntawm curvature ntawm workpiece yog me me heev, tshwj xeeb tshaj yog thaum ntsuas lub thickness ntawm me me-inch yeeb nkab, vim hais tias feem ntau siv sojntsuam nto rau lub dav hlau, thiab nkhaus nto tiv tauj rau lub point contact los yog kab sib cuag, lub suab. kev siv ntawm kev sib kis tus nqi yog tsawg (tsis zoo coupling).
(3) Kev tshawb nrhiav qhov chaw thiab qhov chaw hauv qab tsis sib luag, lub suab nrov nthwv dej ntsib cov hauv qab nto tawg, qhov kev sojntsuam tsis tuaj yeem lees txais lub teeb liab hauv qab nthwv dej.
(4) castings, austenitic steel vim lub koom haum tsis sib xws los yog ntxhib lis, ultrasonic tsis nyob rau hauv uas qhov kev ntawm kev tawg loj heev attenuation, cov tawg ultrasonic tsis raws txoj kev nyuaj propagation, nws yog ua tau kom lub ncha annihilation, ua nyob rau hauv tsis-display. .
