Cov me me thiab nruab nrab- cov chaw txhaj tshuaj molding nrog cov peev nyiaj tsawg tsis tuaj yeem them taus siab -cov khoom siv hluav taws xob ntsuas qhov ntsuas qhov ntsuas qhov ntsuas qhov ntsuas kub, thiab lawv tsis tuaj yeem xa tag nrho cov kev sojntsuam mus rau thib peb-cov chaw kuaj xyuas tog rau kev ntsuas tsis tu ncua vim lub sijhawm xa khoom ntev thiab cov nqi kuaj kim. Cov txheej txheem ntawm kev ua haujlwm sib piv calibration schemes vam khom cov qauv siv thermocouples, uas twb muaj lawm kub khiav pwm cua sov tshuab thiab portable multimeters ua tiav qhov kev ua yuam kev ntawm batch thermocouples ntawm - site, txiav txim siab drift cov qauv tsim nyog thiab ua tau zoo tshuaj ntsuam xyuas hnyav drifted probes yam tsis muaj cov khoom lag luam loj, ua tau raws li kev tswj hwm txhua hnub.
Ua ntej- calibration kev npaj ua haujlwm suav nrog peb kauj ruam tseem ceeb. Ua ntej, npaj ib daim ntawv pov thawj tus qauv siv thermocouple nrog qhov siv tau thib peb- tog calibration cov ntaub ntawv, khaws cia nyias thiab tsuas yog siv rau calibration xeem yam tsis muaj kev teeb tsa ntawm cov pwm ntau lawm kom tsis txhob muaj tus kheej - drift cuam tshuam nrog kev sib piv raug. Muab faib tag nrho cov thermocouples uas yuav tsum tau kuaj los ntawm K-hom thiab J- hom los tiv thaiv kev sib piv ntawm cov hlau sib txawv uas tsim cov kev suav yuam kev. Ntxuav tag nrho cov kev soj ntsuam xyuas cov lus qhia nrog cov ntaub ntawv cawv tsis muaj dej kom tshem tawm cov pa roj carbon deposits thiab roj av; Cov pa roj carbon residual txheej tsim cov cua sov cais cov teeb meem thiab cuam tshuam cov ntaub ntawv sib piv. Qhov thib ob, npaj ob txoj hauv kev ywj pheej ntawm lub Hoobkas qhov ntsuas kub uas twb muaj lawm, siab -kub hlau khi hlua khi, thermal rwb thaiv tsev paj rwb thiab ib qho khoom siv multimeter rau kev ntsuas kev tiv thaiv. Thib peb, txias tag nrho cov pwm rau hauv chav tsev kub ua ntej kuaj kom tshem tawm cov thermal cuam tshuam uas cuam tshuam rau qhov ntsuas kub nyeem ntawv.
Kauj Ruam 1: 200℃zoo li qub tsis tshua muaj - qhov ntsuas kub sib piv siv cov pwm kub kub khiav tsis zoo. Xaiv ib qho kev ua haujlwm tsis muaj zog-dawb kub khiav manifold cua sov cheeb tsam, teeb tsa tus qauv siv cov thermocouple thiab kuaj kev sojntsuam ntawm ib sab, nruj nreem khi ob lub tswv yim pom zoo ua ke nrog siab - kub hlau strips kom paub meej qhov sib txawv -dawb tiv tauj, thiab qhwv txoj haujlwm khi nrog tuab thermal rwb thaiv tsev paj rwb kom cais tawm sab nraud cua sov. Teem lub ntsuas cua kub rau 200 degree, tuav qhov kub thiab txias rau 20 feeb tom qab kev nyeem ntawv ruaj khov, tom qab ntawd sau cov ntsuas kub ntawm cov qauv thiab cov ntsuas ntsuas raws li ntsuas ntsuas qhov sib txawv ntawm cov qauv ntsuas thiab cov qauv ntsuas. Qhov ntsuas qhov ntsuas kub qis no suav nrog qhov ntsuas kub ua haujlwm ntawm PP thiab PE qis-cov pwm ntim pwm, ntsuas qhov ntsuas nrog qhov ntsuas kub tsawg- qhov kub thiab txias tsis xws luag.
Kauj Ruam 2: 450℃nruab nrab- ntsuas qhov ntsuas kub sib piv simulating cov khoom siv hluav taws xob zoo li qub. Kho tus maub los teeb kub rau 450℃thiab tswj qhov kub thiab txias rau 25 feeb tom qab nyeem ntawv kom ruaj khov los sau cov ntaub ntawv sib txawv ntawm pawg thib ob. Qhov ntsuas kub no sib haum rau cov khoom siv hluav taws xob ABS, PC thiab PA66 engineering yas molding kub, feem ntau siv sijhawm ua haujlwm rau kub khiav thermocouples qhov twg feem ntau drift faults mloog zoo. Yog tias qhov sib txawv ntawm qhov ntsuas qhov ntsuas thiab cov qauv siv tau tshaj ± 2.5℃ntawm qhov ntsuas kub ntawm qhov ntsuas kub no, qhov kev txiav txim ua ntej tau faib cov kev sojntsuam raws li qhov hnyav hnyav thiab cim rau kev tshem tawm.
Kauj Ruam 3: 600℃siab-kub sib piv kev sim tsom siab siab-kub ntxiv cov yas pwm. Ua kom sov cov nqi rau 600℃thiab tuav qhov kub thiab txias rau 30 feeb los sau cov ntaub ntawv sib txawv ntawm peb. Qhov kev xeem no yog tsom rau cov iav fiber ntau reinforced yas, PPS thiab lwm yam siab -kub molding resins, kuaj thermocouple alloy hlau siab -kub los tiv thaiv- oxidation stability. J-hom thermocouples ua rau muaj qhov sib txawv loj heev ntawm 600℃vim yog hlau hlau oxidation, ua raws li lawv qhov muaj peev xwm siab -kub qhov kev txwv thiab ua tus cim cim rau misclassified mix K/J probes.
Kauj Ruam 4: Multimeter auxiliary resistance zais kev kuaj xyuas tom qab ntsuas qhov ntsuas kub. Txias pwm mus rau hauv chav tsev kub, hloov lub multimeter mus rau hom kev tiv thaiv los ntsuas kev tiv thaiv sab hauv ntawm txhua qhov kev sojntsuam, co cables rov qab thiab tawm thaum ntsuas. Lub zog tsis kam hloov pauv thaum lub sij hawm co qhia tau hais tias qhov tawg tawg hauv cov xov hlau uas hloov mus rau hauv kev sib tshuam qhib - qhov ua txhaum ntawm qhov hluav taws xob tom qab cua sov nthuav dav; xws li probes ncaj qha scrapped tsis hais txog qhov kub thiab txias sib piv cov ntaub ntawv sib txawv.
Unified comparative calibration result judgment standards. K- hom thermocouples nrog kev sib txawv Tsawg dua lossis sib npaug li ± 1.5℃ntawm tag nrho peb qhov ntsuas kub tau tsim nyog raws li Chav Kawm 1, tsim nyog rau tsheb thiab kev kho mob precision pwm; Kev sib txawv ntawm ± 1.5℃txog ± 2.5℃tsim nyog raws li Chav Kawm 2, tso cai rau cov ntim khoom zoo tib yam thiab cov khoom siv hauv tsev pwm; ib qho kev sib txawv tshaj ± 2.5℃ntawm ib qho kub taw tes cais cov kev sojntsuam raws li hnyav drifted thiab txwv tsis pub ntau lawm. J- hom thermocouples tso cai ntau qhov sib txawv ntawm ± 3℃hauv qab 450 degree, nrog rau kev sib txawv tshaj ± 4℃ntawm 600℃ua rau kev tshem tawm ncaj qha.
Tshaj tawm -calibration data archiving thiab classified probe management. Sau cov ntaub ntawv sib piv cov ntaub ntawv sib piv cov ntaub ntawv sau cov ntaub ntawv sojntsuam serial tooj, hom xov hlau, peb -cov ntaub ntawv sib txawv thiab cov txiaj ntsig kev txiav txim siab, khaws cov ntaub ntawv hluav taws xob hauv kev cob qhia MES rau tag nrho traceability. Affix waterproof classification labels ntawm tsim nyog probes cim calibration calibration hnub tas sij hawm; drifted tsis tsim nyog sojntsuam raug muab tso rau hauv cov khib nyiab khib nyiab uas muaj cov cim meej kom tsis txhob rov siv dua los ntawm cov neeg ua haujlwm tu.
Cov pwm cua sov sib piv txoj kev ntsuas qhov ntsuas no tau siv tag nrho cov khoom siv hluav taws xob uas twb muaj lawm uas tsis muaj kev yuav khoom ntxiv siab -cov nqi ntsuas hluav taws xob, nrog rau kev ntsuas qhov ntsuas tsis pub dhau ± 0.8℃kom tau raws li niaj hnub tshuaj xyuas cov kev xav tau ntawm cov chaw tsim khoom me me thiab nruab nrab txhaj tshuaj molding, zoo txo cov khoom lag luam tsis zoo los ntawm cov khoom siv thermocalibration.
