Kev qhia txog lub tshuab rhaub cartridge feem ntau cuam tshuam nrog kev txiav txim siab txog kev ua haujlwm, tab sis ob peb yog qhov tsim nyog raws li kev xaiv ntawm cov khoom siv sheath. Txawm hais tias stainless hlau yog qhov kev xaiv zoo tshaj plaws rau ntau tus engineers -nqi rau nws ntau yam, muaj, thiab tus nqi tsim nyog- kho nws raws li kev daws teeb meem thoob ntiaj teb tuaj yeem cuam tshuam kev ua haujlwm, txo lub neej kev pab cuam, lossis qhia cov nuj nqis uas tsis tsim nyog. Lub plhaub yog ntau tshaj li lub plhaub tiv thaiv; nws yog qhov tseem ceeb interface los ntawm cov thermal zog hloov mus rau daim ntawv thov. Nws cov khoom siv ncaj qha tswj xyuas cov cua sov, tiv thaiv corrosion, txhua yam muaj zog ntawm qhov kub thiab txias, thiab tshuaj lom neeg sib raug zoo nrog ob qho tib si ib puag ncig thiab cov cua sov nruab nrab.
Stainless hlau: Lub Workhorse nrog txwv
Qib xws li304, 316, Incoloy 800, thiab Incoloy 840yog cov caj qaum ntawm kev lag luam cua sov. Incoloy alloys, piv txwv li, ua tau zoo nyob rau hauv dav dav -lub hom phiaj siv mus txog kwv yees li750 degree, muab robust tsis kam rau oxidation thiab scaling nyob rau hauv huab cua los yog tswj cua. Lawv txoj kev siv dav dav yog tsim nyog nyob rau hauv feem ntau machining, molding, thiab cov txheej txheem dej cua sov xwm txheej. Txawm li cas los xij, stainless hlau tsis muaj kev cuam tshuam. Hauv ib puag ncig uas muajchlorides, fluorides, los yog acidic compounds-feem ntau hauv kev ua tshuaj, kev siv dej hiav txwv, lossis qee qhov plating da dej -txawm tias siab - qib stainless hlau tuaj yeem raug kev txom nyem los ntawmpitting corrosion los yog kev nyuaj siab corrosion cracking. Cov kev ua tsis tiav no feem ntau nce zuj zus thiab zais, ua rau muaj kev cuam tshuam ntawm lub tshuab hluav taws xob tam sim ntawd thiab kev sib kis kab mob.
Cov kev xaiv tshwj xeeb rau kev thov ib puag ncig
Thaum cov xwm txheej tshaj qhov muaj peev xwm ntawm cov hlau tsis muaj steel, ntau yam kev hloov pauv hloov ua qhov tseem ceeb:
Nickel{0}}Plated tooj liab:Hauv cov ntawv thov xav tau sai, cov cua sov hloov pauv tsis zoo- xws li hauv qhov ntsuas qhov ntsuas kub - tswj cov platens lossis siab - cov cuab yeej molding voj voog - tooj liab qhov tshwj xeeb thermal conductivity yog qhov zoo dua. Nws tso cai rau covcartridge rhaubua haujlwm ntawm qhov kub thiab txias sab hauv rau qhov tso zis saum npoo, txo cov kev ntxhov siab ntawm cov coil sab hauv thiab rwb thaiv tsev, yog li txuas ntxiv lifespan. Cov tub ntxhais tooj liab feem ntau yog electroplated nrog npib tsib xee, uas muab kev tiv thaiv kev tiv thaiv me ntsis corrosion thiab oxidation, ua qhov sib xyaw ua ke no zoo tagnrho rau kev tswj cov tshuaj da dej lossis siab - kev ua haujlwm zoo.
High -Tub kub Alloys (Inconel):Rau cov txheej txheem tshaj750 degree, xws li hauv iav ua hauj lwm, semiconductor diffusion furnaces, los yog aerospace tivthaiv kuaj, cov ntaub ntawv xws liInconel 600 lossis 601tsim nyog. Cov npib tsib xee -chromium superalloys khaws lub zog tshwj xeeb thiab tiv thaiv oxidation, carburization, thiab nitriding nyob rau hauv ib puag ncig huab, ua kom cov sheath tswj cov txheej txheem kev ncaj ncees thiab tsis dhau los ua cov kab mob.
Titanium:Nyob rau hauv ib puag ncig corrosive heev, tshwj xeeb tshaj yog cov uas muaj chlorides, txo cov acids, los yog oxidizing ntsev (xws li, nyob rau hauv anodizing, etching, los yog tshwj xeeb electrochemical txheej txheem),titaniumfeem ntau yog tib txoj kev xaiv. Nws muaj qhov zoo tshaj plaws corrosion kuj, txawm tias ntawm tus nqi siab dua thiab nrog qis thermal conductivity dua stainless hlau.
Tus Txheej Txheem Saib Xyuas: Galvanic Compatibility
Ib qho kev txiav txim siab tsis tu ncua yog qhov cuam tshuam ntawm electrochemical ntawm cov ntaub qhwv thiab cov khoom siv hauv tsev. Piv txwv li, kev txhim kho astainless hlau cartridge rhaubin ibaluminium thaivtsim ib ob peb galvanic qhov twg txhuas, ua ntau anodic, tuaj yeem corrode nyiam nyob rau hauv lub xub ntiag ntawm cov kab electrolytes xws li av noo los yog coolant. Qhov corrosion no tuaj yeem "weld" lub rhaub rau hauv lub qhov borehole, ua kev tu ncua lossis hloov qhov nyuaj thiab kim heev. Hauv cov xwm txheej zoo li no, kev qhia txog cov ntaub qhwv los ze zog rau txhuas hauv cov galvanic series lossis siv cov txheej txheem tiv thaiv kev tiv thaiv tuaj yeem tiv thaiv qhov teeb meem no.
Ib qho Proactive Specification Strategy
Txhawm rau zam cov teeb meem no, txoj hauv kev sib koom ua ke thiab koom tes nrog koj lub tshuab hluav taws xob yog qhov tseem ceeb. Tsis yog tsuas yog thov "stainless steel," muab ib qho kev ua haujlwm dav dav:
Qhov siab tshaj plaws thiab ua haujlwm tsis tu ncua
Xwm ntawm cov khoom siv cua sov(piv txwv li, aluminium, tooj liab, hlau, ceramic)
Ib puag ncig puag ncig(muaj tshuaj, ncu, ntsev, los yog abrasive plua plav)
Cycling Profile(Steady- xeev vs. ceev ceev rau / tawm kev caij tsheb kauj vab, uas ua rau qaug zog thermal)
Kev Kho Kom Zoo(xws li, xav tau kev tshem tawm yooj yim thiab hloov pauv)
Nrog rau cov ntaub ntawv no, tus neeg muag khoom paub zoo tuaj yeem pom zoo tsis yog tsuas yog cov khoom siv zoo tshaj plaws xwb tab sis kuj qhia txog kev hloov kho kom zoo. Cov no tuaj yeem suav nrog tshwj xeebnto tiav(piv txwv li, polished los txo kev sib txhuam thiab txhim kho cov cua sov hloov los yog oxidized los txhim kho emissivity),kev kho hardness, los yog kev caidiameters thiab toleranceskom optimize qhov haum nyob rau hauv lub borehole.
Xaus: Lub Foundation rau Kev Ntseeg
Kev xaiv ntawm cov khoom siv sheath yog lub hauv paus kev txiav txim siab engineering hauv qhov tshwj xeeb ntawm ib qhocartridge rhaub. Tsiv dhau qhov kev xaiv ntawm cov hlau tsis zoo rau lub cev -paub, daim ntawv thov- cov txheej txheem kev xaiv tsav yog lub cim ntawm kev tsim thermal tsim. Los ntawm kev txiav txim siab tag nrho lub neej voj voog ntawm lub neej- suav nrog kev ua tau zoo, kev ua haujlwm ntev - lub sijhawm ua haujlwm ntev, thiab cov kev xav tau ntawm kev ua haujlwm tau zoo- cov engineers tuaj yeem hais qhia lub tshuab cua sov uas tsis yog tsim nyog, tab sis ua kom zoo, ua kom muaj kev ntseeg siab, kev nyab xeeb, thiab tus nqi- ua haujlwm tau ntev.
