Xaiv cov ntaub qhwv zoo rau siab -Density Cartridge rhaub
One of the most critical decisions when selecting high-density cartridge heaters is choosing the right sheath material. Lub sheath yog txheej txheej uas tiv thaiv cov xaim sab hauv thiab rwb thaiv tsev, thiab nws yog lub luag haujlwm rau kev xa cov cua sov mus rau qhov nruab nrab ib puag ncig. Kev siv cov ntaub qhwv tsis raug ua rau ua rau tsis ua tiav ntxov, corrosion, overheating, thiab txawm tias muaj kev nyab xeeb. Ntau tus neeg ua lag luam tau saib xyuas qhov kev txiav txim siab no, xaiv cov khoom pheej yig tshaj plaws uas muaj, tsuas yog ntsib cov nqi hloov pauv thiab poob qis.
High-High Cartridge rhaub muaj nyob rau hauv ntau yam ntaub ntawv sheath, txhua tus muaj nws tus kheej lub zog, tsis muaj zog, thiab kub txwv. Cov khoom siv feem ntau yog 304 stainless hlau, 316L stainless hlau, 310S stainless hlau, thiab Incoloy 800/840. Qhov kev xaiv yog nyob ntawm daim ntawv thov nruab nrab (kua, roj, lossis khoom), kev ua haujlwm kub, thiab kev tiv thaiv corrosion. Raws li kev paub dhau los, xaiv cov khoom siv sheath yog ib qho tseem ceeb raws li kev xaiv cov wattage zoo -ze li 50% ntawm cov khoom siv hluav taws xob ua tsis tiav yog vim cov ntaub ntawv tsis sib xws.
304 stainless hlau yog cov khoom siv ntau tshaj plaws thiab pheej yig, tsim nyog rau ntau yam - siv hom phiaj. Nws yog corrosion- tiv taus cov tshuaj me me, dej, thiab huab cua, thiab tuaj yeem tiv taus kub txog 600 degree. Cov khoom no yog qhov zoo tagnrho rau cov dej kub, cov roj me me, thiab cua, nrog rau kev nkag mus rau hauv cov hlau uas tsis yog -corrosive. Nws yog qhov kev xaiv zoo rau cov ntawv thov uas tus nqi muaj kev txhawj xeeb thiab ib puag ncig tsis hnyav. Txawm li cas los xij, 304 stainless hlau tsis haum rau cov tshuaj acidic lossis alkaline, vim nws yuav corrode sai hauv cov cheeb tsam no.
316L stainless hlau yog ib qho kev xeb ntau dua - kev xaiv resistant, tsim rau siv nyob rau hauv ib puag ncig hnyav. Nws muaj molybdenum, uas txhim kho nws cov kev tiv thaiv rau cov kua qaub, alkalis, thiab dej ntsev, ua rau nws zoo tagnrho rau cov cua sov tshuaj, dej hiav txwv, thiab cov khoom ua zaub mov. Nws tuaj yeem tiv taus qhov kub txog li 650 degree, me ntsis siab dua 304 stainless hlau. Cov khoom siv no kim dua 304, tab sis nws tsim nyog rau kev nqis peev rau kev siv qhov twg corrosion yog ib qho kev txhawj xeeb. Piv txwv li, 316L stainless hlau sheath heaters feem ntau yog siv rau hauv cov tshuaj reactors, marine khoom, thiab ua zaub mov thiab dej haus.
310S stainless hlau yog tsim los rau siab - daim ntawv thov kub, muaj peev xwm tiv taus kub txog 800 degree. Nws muaj cov ntsiab lus chromium thiab npib tsib xee, uas ua rau nws tiv taus oxidation thiab siab - kub corrosion. Cov khoom no yog qhov zoo tagnrho rau cua sov siab -kub gases, roj, thiab molten hlau, nrog rau kev tso rau hauv siab - kub pwm. Nws kuj tseem tiv taus thermal shock, ua rau nws haum rau cov ntawv thov nrog qhov kub thiab txias hloov pauv. Txawm li cas los xij, 310S stainless hlau tsis zoo li corrosion{11}} tiv taus cov kua qaub thiab alkalis li 316L, yog li nws yog qhov zoo tshaj plaws siv nyob rau hauv siab - kub, tsis yog - corrosive ib puag ncig.
Incoloy 800/840 yog npib tsib xee- hlau-chromium alloy uas muaj kev tiv thaiv corrosion zoo heev thiab siab - kub ua haujlwm. Nws tuaj yeem tiv taus qhov kub txog li 850 degree, ua rau nws haum rau qhov kev thov siab tshaj plaws -kub siv. Incoloy tiv taus ntau yam tshuaj, nrog rau cov kua qaub, alkalis, thiab cov ntsev ntsev, ua rau nws zoo tagnrho rau kev ua tshuaj lom neeg, petrochemical, thiab aerospace kev siv. Nws yog kim dua stainless hlau, tab sis nws muaj superior durability thiab kev ua tau zoo nyob rau hauv ib puag ncig hnyav. Raws li kev paub dhau los, Incoloy sheath heaters kav ntev li 2 mus rau 3 zaug ntev dua stainless hlau cua sov hauv cov xwm txheej huab cua.
Ntau tus neeg tsis meej pem txog kev xaiv cov ntaub qhwv nrog rau lwm yam kev siv cua sov, xws li hluav taws xob cua sov lossis boilers. Lub tshuab hluav taws xob feem ntau yog siv cov vaj tsev aluminium lossis steel, uas yog tsim los rau cua sov thiab tsis haum rau immersion lossis siab - daim ntawv thov kub. Boilers siv steel los yog cam khwb cia hlau raj, uas yog tsim los rau cua sov dej los yog chav dej tab sis yog loj thiab tsis haum rau lub hom phiaj cua sov. High-cov ntaub ntawv ceev ceev cartridge rhaub sheath yog tsim tshwj xeeb rau cov hom phiaj, siab - kub cua sov, nrog rau cov khoom uas optimize cua sov thiab kav ntev.
Lwm qhov tseem ceeb ntawm kev txiav txim siab yog lub sheath thickness. Thicker sheaths muaj ntau dua durability tab sis txo tshav kub hloov efficiency, thaum thinner sheaths hloov tshav kub ntau npaum li cas tab sis muaj ntau yam kev puas tsuaj. Qhov zoo tshaj plaws thickness nyob ntawm daim ntawv thov-piv txwv li, lub tshuab cua sov siv nyob rau hauv qhov siab - vibration ib puag ncig yuav xav tau cov ntaub qhwv tuab dua, thaum lub tshuab cua sov siv nyob rau hauv cov pwm precision yuav xav tau cov ntaub nyias nyias kom zoo dua cov cua sov.
Hauv kev xaus, xaiv cov ntaub ntawv sheath zoo rau siab -cov khoom siv hluav taws xob ceev yog qhov tseem ceeb rau kev ua haujlwm, ua haujlwm ntev, thiab kev nyab xeeb. Txhua yam khoom muaj nws cov khoom tshwj xeeb, thiab kev xaiv yog nyob ntawm daim ntawv thov qhov nruab nrab, qhov kub thiab txias, thiab cov kev xav tau corrosion. Kev txiav cov nqi los ntawm kev xaiv cov khoom tsis raug ua rau ua rau tsis ua tiav ntxov thiab cov nqi ntau dua nyob rau lub sijhawm ntev. Cov ntawv thov kev lag luam sib txawv xav tau cov ntaub ntawv sib txawv, thiab cov kev tsim qauv tsim kev daws teeb meem tuaj yeem pab xaiv cov khoom siv zoo, kom ntseeg tau tias siab - cov tshuab cua kub ceev ua haujlwm tau ntseeg tau thiab ua tau zoo rau xyoo tom ntej.
