Cov yam ntxwv cuam tshuam rau qhov ntsuas qhov tseem ceeb thiab cov kev daws teeb meem
Kev siv cov thickness gauges thiab kev siv lwm yam twj paj nruag, ob qho tib si rau kev ua tau zoo ntawm cov twj paj nruag, tab sis kuj yuav tsum tau nkag siab txog cov kev xeem. Kev siv lub hauv paus ntsiab lus sib nqus thiab eddy tam sim no lub hauv paus ntsiab lus ntawm cladding thickness gauge yog raws li qhov ntsuas substrate hluav taws xob thiab hlau nplaum thiab qhov kev ncua deb ntawm qhov kev sojntsuam los ntsuas lub thickness ntawm cladding, yog li ntsuas lub substrate electromagnetic lub cev thiab lub cev qhov ntev yuav tsum tau. cuam tshuam qhov loj ntawm qhov sib nqus flux thiab eddy tam sim no. Ntawd yog, nws cuam tshuam rau kev ntseeg siab ntawm tus nqi ntsuas, cov hauv qab no yog ib qho kev qhia txog qhov teeb meem no.
1. Ciam teb sib nrug
Yog hais tias qhov kev sojntsuam thiab ntsuas lub cev ciam teb, qhov, qhov, kab noj hniav, lwm yam kev hloov pauv ntawm qhov sib txawv ntawm qhov sib txawv yog tsawg dua li qhov sib txawv ntawm qhov sib txawv, vim qhov sib nqus flux lossis eddy tam sim no cov cab kuj hla ntu tsis txaus yuav ua rau kev ntsuas yuam kev. Yog hais tias qhov cladding thickness ntawm qhov no yuav tsum tau ntsuas, nws tsuas yog ntsuas tau yog tias nws yog pre-calibrated ntawm ib tug cladding-dawb nto nyob rau hauv tib yam mob. (Ceeb Toom: Peb cov khoom muaj qhov tshwj xeeb ntawm calibration los ntawm cladding kom ua tiav qhov tseeb ntawm 3 txog 10%).
2. Substrate nto curvature
Calibrate tus nqi pib ntawm cov qauv sib piv tiaj tus thiab tom qab ntawd rho tawm tus nqi pib tom qab ntsuas cov cladding thickness. Lossis xa mus rau cov lus hauv qab no.
3. zui Yam tsawg kawg nkaus Thickness ntawm Base Hlau
Lub hauv paus hlau yuav tsum muaj qhov tsawg kawg nkaus thickness kom cov electromagnetic teb ntawm qhov kev sojntsuam yuav tsum muaj nyob rau hauv lub hauv paus hlau. Qhov tsawg kawg nkaus thickness yog hais txog kev ua tau zoo ntawm kev ntsuas ntsuas thiab qhov xwm txheej ntawm cov hlau substrate, thiab tsuas yog saum toj no cov thickness ntsuas tuaj yeem ua yam tsis tau kho qhov ntsuas tus nqi. Cov nyhuv ntawm qhov tsis txaus ntawm lub substrate tuaj yeem raug tshem tawm los ntawm kev tso ib daim ntawm tib cov khoom tam sim ntawd hauv qab lub substrate. Yog hais tias nws yog ib qho nyuaj los yog tsis yooj yim sua kom ntxiv ib lub substrate, qhov sib txawv ntawm tus nqi ntsuas yuav txiav txim tau los ntawm kev sib piv nrog ib tug qauv nrog ib tug paub cladding thickness. Qhov no yog coj mus rau hauv tus account hauv kev ntsuas thiab ntsuas tus nqi raug kho raws li los yog raws li Tshooj 2. Rau cov twj paj nruag uas tuaj yeem ntsuas tau, kev nyeem ncaj nraim ntawm cov tuab tuaj yeem tau los ntawm kev kho lub pob qhov rooj lossis qhov tseem ceeb. Hloov pauv, kev siv cov tuab me me dhau los ua qhov cuam tshuam ntawm kev txhim kho ntawm kev ntsuas ncaj qha ntawm tooj liab foil thickness gauge, raws li tau hais los saum no.
4. Nto roughness thiab deg huv si
Nyob rau hauv lub roughness ntawm qhov chaw nyob rau hauv thiaj li yuav tau txais ib tug sawv cev nruab nrab ntsuas tus nqi yuav tsum tau ntsuas ob peb zaug. Obviously, qhov rougher ntawm qhov chaw, txawm nws yog lub substrate los yog cladding, qhov tsawg txhim khu kev qha ntsuas. Yuav kom tau txais cov ntaub ntawv txhim khu kev qha, qhov nruab nrab roughness Ra ntawm lub substrate yuav tsum tsawg dua 5 feem pua ntawm cov cladding thickness. Raws li rau nto impurities, lawv yuav tsum tau muab tshem tawm. Qee cov cuab yeej muaj qhov txwv sab saud thiab qis kom tshem tawm cov "flying spots". 5.
5. Kev ntsuas ntsuas lub zog
Kev ntsuas ntsuas lub zog yuav tsum tsis tu ncua. Thiab yuav tsum yog me me raws li qhov ua tau, thiaj li tsis ua rau deformation ntawm cov mos cladding, uas ua rau poob rau hauv qhov ntsuas tus nqi lossis qhov hloov pauv loj. Yog tias tsim nyog, ib qho nyuaj, tsis yog-conductive zaj duab xis ntawm qee qhov tuab tuaj yeem muab tso rau ntawm ob. Nyob rau hauv no txoj kev, los ntawm rho tawm cov thickness ntawm cov zaj duab xis yuav ua tau kom tau residual magnetism.
6. Sab nraud tas li magnetic teb, electromagnetic teb thiab remanent magnetisation ntawm lub substrate
Kev ntsuas nyob ze rau sab nraud magnetic teb nrog kev cuam tshuam cuam tshuam yuav tsum zam. Residual magnetism tuaj yeem ua rau ntau dua lossis tsawg dua qhov kev ntsuas yuam kev nyob ntawm qhov kev ua tau zoo ntawm lub tshuab ntes, tab sis qhov no feem ntau tsis yog cov ntaub ntawv xws li cov qauv steel, sib sib zog nqus-tsim steel daim hlau thiab lwm yam.
7. Ferromagnetic thiab conductive Cheebtsam ntawm cov khoom siv cladding
