Cov me me thiab nruab nrab- qhov loj me me txhaj tshuaj molding factories nrog cov peev nyiaj tsawg tsis tuaj yeem yuav siab -cov khoom siv hluav taws xob ua kom sov thermocouple calibration furnaces, thiab 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 ntsuas siab. Cov txheej txheem ntawm kev ua haujlwm sib piv calibration schemes vam khom cov qauv siv thermocouples, kub khiav pwm cua sov system thiab portable multimeter tuaj yeem ua tiav qhov kev xeem yuam kev ntawm batch thermocouples ntawm qhov chaw, txiav txim siab drift tsim nyog cov qauv, thiab ua tau zoo tshuaj ntsuam hnyav drifted probes yam tsis muaj cov khoom siv loj, ua tau raws li kev tswj hwm txhua hnub.
Kev npaj ua haujlwm ua ntej kev sib piv calibration: Ua ntej, npaj ib daim ntawv pov thawj cov qauv siv thermocouple uas siv tau thib peb- tog calibration tsab ntawv ceeb toom, uas yog muab cais thiab tsuas yog siv rau calibration xeem yam tsis tau muab ntsia rau ntawm loj ntau lawm pwm kom tsis txhob muaj tus kheej - drift cuam tshuam rau kev sib piv raug. Muab faib rau txhua qhov thermocouples kom raug kuaj los ntawm K-hom thiab J- hom txhawm rau tiv thaiv kev sib xyaw ua ke ntawm cov hlau sib txawv uas ua rau 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 monoxide residual yuav tsim cov teeb meem kev sib cais ntawm cov cua sov thiab ua rau cov ntaub ntawv sib piv tsis raug. Npaj ob txoj kev ywj pheej ntawm lub Hoobkas qhov ntsuas kub uas twb muaj lawm, kev khi siab siab - kub hlau fixture, tshav kub rwb thaiv tsev paj rwb thiab ib lub multimeter portable rau kev tiv thaiv auxiliary kuaj.
Kauj Ruam 1: Qhov qis qis qis - qhov ntsuas kub sib piv ntawm 200℃siv cov pwm kub kub khiav. Xaiv ib qho tsis siv neeg kub khiav pwm yam tsis muaj cov khoom tsim tawm, teeb tsa tus qauv siv thermocouple thiab qhov ntsuas ntsuas ib sab ntawm ib sab ntawm tib qho chaw cua sov, siv siab - kub hlau khi strips kom nruj khi ob lub tswv yim pom ua ke kom ua tiav kev sib cuag tsis muaj qhov khoob, thiab qhwv txoj haujlwm khi nrog cov cua sov sab nraud. Teem lub ntsuas cua kub rau 200 degree, tuav qhov ntsuas kub tsis tu ncua rau 20 feeb tom qab kev nyeem ntawv ruaj khov, sau cov ntsuas kub ntawm tus qauv sojntsuam thiab txhua qhov ntsuas ntsuas raws li, thiab suav qhov ntsuas kub sib txawv ntawm cov qauv ntsuas thiab tus qauv ntsuas. Qhov ntsuas kub qis - qhov ntsuas kub no suav nrog qhov ntsuas kub ua haujlwm ntawm PP, PE qis-cov pwm ntim pwm, tshuaj ntsuam xyuas nrog qhov hnyav drift ntawm qhov qis qis.
Kauj Ruam 2: Nruab nrab- qhov ntsuas kub sib piv ntawm 450℃kom simulate cov qauv siv hluav taws xob tsim khoom yas. Kho tus maub los teeb kub rau 450 degree, ua kom kub tsis tu ncua rau 25 feeb tom qab kev nyeem ntawv ruaj khov, sau cov ntaub ntawv kub sib txawv dua. Qhov ntsuas kub no sib haum rau ABS, PC, PA66 mainstream engineering yas molding kub, uas yog qhov siv dav tshaj plaws ntawm kev ua haujlwm kub kub khiav thermocouples, thiab feem ntau drift faults yog concentrated nyob rau hauv qhov nruab nrab -kub seem. Yog tias qhov sib txawv ntawm qhov kev sojntsuam kuaj thiab tus qauv siv tshaj ± 2.5℃ntawm qhov ntsuas kub no, nws yuav raug txiav txim ua ntej raws li drifted hnyav thiab yuav tsum tau cim rau kev tshem tawm.
Kauj Ruam 3: Siab- ntsuas qhov ntsuas kub sib piv ntawm 600℃rau siab-kub cov yas pwm. Tsa cov cua kub txheej txheem rau 600 degree, tuav qhov kub thiab txias rau 30 feeb, sau cov ntaub ntawv thib peb ntawm kev sib txawv. Qhov kev xeem no yog tsom rau cov iav fiber ntau reinforced yas, PPS thiab lwm yam siab -kub molding resins, kuaj qhov siab - kub los tiv thaiv - oxidation stability ntawm thermocouple alloy hlau. J-hom thermocouples yuav tsim qhov sib txawv loj heev ntawm 600℃vim yog hlau hlau oxidation, uas yog raws li lawv qhov siab tshaj - qhov kub thiab txias qhov kev txwv thiab tuaj yeem siv los paub qhov txawv ntawm K / J sib xyaw ua ke.
Kauj Ruam 4: Multimeter auxiliary resistance zais kev kuaj xyuas tom qab ntsuas qhov ntsuas kub. Tom qab cov pwm txias rau hauv chav tsev kub, siv lub tshuab ua haujlwm multimeter los ntsuas qhov kev tiv thaiv sab hauv ntawm txhua qhov kev sojntsuam, co lub cable rov qab thiab tawm mus thaum ntsuas. Yog tias tus nqi tiv thaiv tau hloov pauv sai heev thaum tuav, nws qhia tias qhov tawg tawg hauv cov hlau, uas yuav hloov mus rau hauv qhov sib tshuam qhib - Circuit Court faults tom qab cua sov nthuav dav, thiab cov kev sojntsuam zoo li no ncaj qha tsis hais txog qhov ntsuas kub sib piv cov ntaub ntawv sib txawv.
Cov qauv kev txiav txim sib koom ua ke rau cov txiaj ntsig sib piv: K- hom thermocouples nrog kev sib txawv Tsawg dua lossis sib npaug li ± 1.5℃ntawm tag nrho peb qhov ntsuas kub tau txiav txim raws li Chav Kawm 1 tsim nyog, tsim nyog rau tsheb, kev kho mob precision pwm; Qhov sib txawv ntawm ± 1.5℃thiab ± 2.5℃yog Chav Kawm 2 tsim nyog, tso cai rau cov ntim khoom zoo tib yam thiab cov khoom siv hauv tsev pwm; sib txawv tshaj ± 2.5℃ntawm txhua qhov kub thiab txias yog drifted hnyav thiab txwv tsis pub ntau lawm. J- hom thermocouples tso cai rau qhov sib txawv siab tshaj plaws ntawm ± 3℃hauv qab 450 degree, thiab txhua qhov sib txawv tshaj ± 4℃ntawm 600℃raug tshem tawm ncaj qha.
Tom qab-calibration ntaub ntawv archiving thiab sojntsuam kev faib cov ntaub ntawv: Sau nyob rau hauv ib tug unified comparative calibration cov ntaub ntawv daim ntawv, sau cov sojntsuam serial tooj, hlau hom, peb-point deviation cov ntaub ntawv thiab tsim nyog txiav txim, thiab khaws cov ntaub ntawv hluav taws xob nyob rau hauv lub Rhiav MES system rau traceability. Affix waterproof classification labels ntawm tsim nyog probes kos lub calibration tas sij hawm; Cov kev sojntsuam uas tsis muaj peev xwm loj heev tau muab tso rau hauv lub thawv tshwj xeeb pov tseg thiab cim kom tsis txhob rov siv dua los ntawm cov neeg ua haujlwm tu.
Qhov pwm cua sov sib piv txoj kev ntsuas ntsuas no ua rau siv tag nrho lub Hoobkas cov khoom siv khiav kub uas twb muaj lawm, tsis tas yuav khoom ntxiv siab -tus nqi calibration furnaces, thiab kev xeem yuam kev yog tswj nyob rau hauv ± 0.8 degree, uas muaj peev xwm ua tau raws li niaj hnub kev soj ntsuam xav tau ntawm me me thiab nruab nrab - qhov loj txhaj molding cov khoom lag luam tsis zoo los ntawm kev pheej hmoo ntawm calibration factories. drifted thermocouples.
