Eddy tam sim no flaw detection yog ib tug flaw detection txoj kev uas siv lub hauv paus ntsiab lus ntawm electromagnetic induction los xyuas qhov defects ntawm lub Cheebtsam thiab cov ntaub ntawv hlau. Txoj kev tshawb nrhiav yog qhov kev tshawb nrhiav kauj thiab nws cov kev faib tawm thiab cov qauv ntawm kev kuaj xyuas kauj.

Qhov zoo ntawm eddy tam sim no flaw nrhiav kom tau seamless raj yog: qhov kev kuaj pom qhov tsis zoo tuaj yeem tso tawm ncaj qha los ntawm cov teeb liab hluav taws xob, uas yooj yim rau kev kuaj pom tsis siv neeg; vim txoj kev tsis sib cuag, qhov tsis pom kev nrawm nrawm heev; nws yog tsim rau flaw nrhiav pom ntawm defects. Qhov tsis zoo yog: qhov tsis xws luag hauv qhov tob hauv qab ntawm lub seamless steel raj tsis tuaj yeem kuaj pom; nws yog ib qho yooj yim los tsim cov teeb liab tsis zoo; Nws yog ib qho nyuaj rau ncaj qha qhov txawv ntawm qhov tsis xws luag los ntawm cov teeb liab pom tau los ntawm kev tshawb pom.
Lub seamless steel tube flaw detection lag luam muaj xws li ob peb kauj ruam xws li nto tu lub xeem daim, stability ntawm lub flaw detector, xaiv cov flaw detection specifications, thiab flaw detection test.

Cov kev taw qhia ntawm cov eddy tam sim no nyob rau hauv lub seamless raj specimen yog opposite rau tam sim no kev taw qhia ntawm thawj kauj (los yog excitation coil). Lub alternating magnetic teb generated los ntawm eddy tam sim no hloov nrog lub sij hawm, thiab thaum nws dhau los ntawm cov thawj kauj, nws induces alternating tam sim no nyob rau hauv lub kauj. Vim tias qhov kev taw qhia ntawm qhov tam sim no yog qhov sib txawv ntawm qhov eddy tam sim no, qhov tshwm sim yog tib qho kev taw qhia raws li qhov tseem ceeb tam sim no nyob rau hauv thawj kauj. Qhov no txhais tau hais tias tam sim no nyob rau hauv thawj kauj ruam nce vim yog cov tshuaj tiv thaiv ntawm cov eddy tam sim no. Yog hais tias qhov eddy tam sim no hloov, qhov nce no kuj hloov. Ntawm qhov tsis sib xws, los ntawm kev ntsuas qhov kev hloov pauv tam sim no, kev hloov pauv ntawm cov eddy tam sim no tuaj yeem ntsuas tau, kom tau txais cov ntaub ntawv hais txog qhov tsis xws luag ntawm seamless steel raj.

Tsis tas li ntawd, alternating tam sim no hloov cov kev taw qhia ntawm qhov tam sim no ntawm ib lub sijhawm dhau los. Muaj qee qhov sib txawv ntawm cov theem ntawm qhov excitation tam sim no thiab cov tshuaj tiv thaiv tam sim no, thiab qhov sib txawv ntawm theem no hloov nrog cov duab ntawm cov ntawv xeem, yog li qhov kev hloov theem no kuj tseem siv tau los ua cov ntaub ntawv los txheeb xyuas lub xeev ntawm seamless. steel tube kuaj daim. Yog li ntawd, thaum lub xeem piece los yog kauj yog tsiv ntawm ib tug tej yam ceev, hom, puab thiab loj ntawm steel yeeb nkab tsis xws luag yuav paub raws li lub waveform ntawm eddy tam sim no hloov. Qhov hloov pauv tam sim no tsim los ntawm oscillator tau dhau mus rau hauv lub kauj, thiab cov khoom sib nqus sib nqus yog siv rau hauv daim ntawv xeem. Lub eddy tam sim no ntawm daim ntawv xeem yog kuaj los ntawm lub kauj thiab xa mus rau tus choj Circuit Court raws li AC tso zis.