High-density cartridge heaters, also known as single-ended heating tubes, represent an advanced category of electric heating elements designed for demanding industrial applications. Cov cua sov no yog cov yam ntxwv ntawm lawv cov duab cylindrical compact, siab watt ceev (feem ntau tshaj 25 W / cm²), thiab muaj peev xwm xa cov cua kub hauv qhov chaw kaw. By packing more heating power into a smaller footprint, high-density cartridge heaters enable faster ramp-up times, precise temperature control, and energy efficiency, making them indispensable in modern manufacturing. Tsim los ntawm cov hlau tsis muaj zog (feem ntau Nichrome) coiled hauv cov hlau sheath uas muaj magnesium oxide rwb thaiv tsev, lawv ua kom zoo thermal conductivity thiab hluav taws xob cais. Qhov "high-density" nam yog hais txog cov txheej txheem winding optimized thiab compaction uas tso cai rau cov zis ntau zog yam tsis muaj kev cuam tshuam txog kev ua haujlwm ntev. Kev nkag siab txog lawv cov kev ntsuas thiab kev siv yog qhov tseem ceeb rau kev xaiv tus qauv zoo, ua kom muaj kev nyab xeeb, thiab ua kom muaj kev ua tau zoo tshaj plaws hauv cov haujlwm xws li plastics, khoom noj khoom haus, thiab tsheb. Hauv qab no, peb nthuav dav cov ntsiab lus tseem ceeb thiab kev siv, kos duab los ntawm cov txheej txheem kev lag luam.
I. Technical Parameters of High-Density Cartridge Heaters:
1. Kev khiav hauj lwm tej yam kev mob: ambient kub li ntawm -20℃mus rau +60 degree, nrog txheeb ze av noo tsawg tshaj li 80%. Cov kev txwv no txhais cov kev txwv ib puag ncig rau kev ua tau zoo. Hauv cov chaw txias dua, xws li cov khoom siv sab nraum zoov lossis cov txheej txheem tub yees, cov khoom siv ntawm lub tshuab cua sov yuav tsum tiv taus brittleness, thaum nyob rau hauv qhov chaw ntub dej, txhim kho kev sib khi tiv thaiv kom tsis txhob ya raws uas tuaj yeem ua rau luv luv. Qhov ntau yam no ua kom muaj ntau yam thoob plaws huab cua, los ntawm arctic cia rau cov chaw kub thiab txias, tab sis cov neeg siv yuav tsum koom nrog cov dehumidifiers los yog cov ntaub thaiv npog yog tias cov xwm txheej mus txog qhov kawg kom tsis txhob muaj kev cuam tshuam txog kev ua tsis tiav.
2. Hluav taws xob muaj zog: Txias-lub xeev tiv taus qhov hluav taws xob ntawm AC 1500V ntawm 50Hz rau 1 feeb yam tsis muaj kev puas tsuaj. Qhov kev ntsuam xyuas no txheeb xyuas qhov kev ruaj ntseg ntawm lub rwb thaiv tsev nyob rau hauv high voltage ua ntej cua sov, simulating muaj peev xwm surges nyob rau hauv cov khoom siv fais fab. Nws yog ib qho kev ntsuas kev nyab xeeb tseem ceeb, ua raws li cov qauv zoo li IEC 60335, txhawm rau tiv thaiv arcing lossis hluav taws kub. Cov neeg tsim khoom ua qhov no (muaj peev xwm muaj peev xwm) kev xeem dhau- sib dhos, ua kom cov magnesium oxide muab tub lim thiab epoxy seals tuav, uas yog qhov tseem ceeb rau kev siv hauv cov huab cua tsis zoo.
3. Kub-Lub Xeev Rwb Thaiv Kev Ua Haujlwm: AC 1000V ntawm 50Hz rau 1 feeb yam tsis muaj kev puas tsuaj. Tsis zoo li qhov ntsuas txias, qhov no ntsuas kev rwb thaiv tsev nyob rau hauv kev ua haujlwm kub, qhov chaw nthuav dav thiab thermal stress tuaj yeem ua rau cov teeb meem tsis muaj zog. Nws lees paub lub tshuab cua sov lub peev xwm los tswj lub zog dielectric ntawm qhov kub siab, txo qhov kev pheej hmoo ntawm kev xau hauv kev txuas ntxiv -siv scenarios. This parameter is especially important for high-density models, where intense internal heat (up to 750℃sheath temperature) demands robust materials to avoid degradation over cycles.
4. Cov dej ntws tam sim no: tsawg dua 0.5mA; Rwb thaiv tsev Resistance: Ntau tshaj 30MΩ. Tsawg qhov hluav taws xob tam sim no txo qis hluav taws xob muaj kev phom sij, ua kom muaj kev nyab xeeb raws li UL 499. Cov rwb thaiv tsev siab qhia tau tias muaj kev sib cais zoo ntawm cov cua sov thiab cov sheath, ntsuas nrog megohmmeter. Cov kev qhia tshwj xeeb no raug sim hauv chav tsev kub thiab tom qab cua sov caij tsheb kauj vab kom simulate tiag - ntiaj teb kev laus, tiv thaiv kev poob siab lossis tsis muaj txiaj ntsig hauv qhov chaw ntub dej lossis muaj kab mob.
5. Fais fab sib txawv: +5%, -10% lossis 10W, qhov twg ntau dua. Qhov kev kam rau siab no suav nrog kev tsim khoom sib txawv hauv cov hlau tsis sib haum thiab sib dhos, tso cai rau kev hloov pauv me ntsis yam tsis cuam tshuam rau kev ua haujlwm. Piv txwv li, 1000W lub rhaub yuav muaj li ntawm 900W txog 1050W, kom ntseeg tau tias cov khoom siv hluav taws xob zoo ib yam. Cov neeg siv yuav tsum ua qhov no rau hauv cov qauv tsim, siv PID systems rau kev tswj xyuas meej, vim tias kev sib txawv tuaj yeem cuam tshuam cov txheej txheem sib xws hauv cov ntawv thov rhiab zoo li kev kho mob kom tsis muaj menyuam.
