Thaum Watts Ib Square Inch mus yuam kev nrog Cartridge rhaub

Xaiv lub tshuab rhaub cartridge tuaj yeem hnov ​​​​zoo li cov lej ua si. Qhov siab dua lub wattage, qhov ceev lub rhaub yuav sov, yog li nws yog ib qho yooj yim mus xaiv lub cartridge rhaub nrog lub siab tshaj plaws wattage uas haum rau lub qhov. Tab sis nyob rau hauv lub realm ntawm industrial cua sov, loj tsis yog ib txwm zoo. Nyob rau hauv qhov tseeb, txoj kev sai tshaj plaws los hlawv tawm, yaj qhov chaw, warp moulds, thiab poob nyiaj yog tsis quav ntsej qhov kev sib txuas ntawm wattage thiab deg cheeb tsam.

Tus lej tseem ceeb tshaj plaws los saib ntawm no yog watt ntom, uas yog tus naj npawb ntawm watts muab faib los ntawm tus lej square inches los yog square centimeters ntawm daim cartridge rhaub sheath.
\\\\text{Watt ceev (W/in²)}=\\frac{\\text{Total wattage}}{\\pi \\times \\text{diameter (in)} \\times \\text{heated length (in)}}

(los yog W / cm² hauv metric tus nqi). Ib qho xwm txheej tshwm sim hauv thaj teb yog thaum tus neeg siv tso lub siab -wattage cartridge rhaub rau hauv lub pwm kab noj me me thiab nws hlawv tawm hauv tsawg dua ib lub lis piam. Leej twg ua nws? Tsis muaj chaw rau cua sov mus. Lub tshuab tso cua sov lub tshuab hluav taws xob sab hauv kub tau raug tua vim tias cov pwm, lossis cov khoom raug cua sov, tsis tau noj thiab tso tawm kom sov sai li lub caij ua nws.

Qhov kev tsis sib haum no tshwj xeeb yog qhov tsis zoo rau cov ntawv thov uas xav tau ntau lub zog. When the watt density gets too high for the medium around it, the sheath surface temperature rises much above the mould set point, frequently by 200 to 400℃. Qhov no thawb cov npib tsib xee sab hauv-chromium tsis kam xaim dhau los ntawm nws qhov pib oxidation, uas nyob nruab nrab ntawm 900 thiab 1000 degree. Cov hlau oxidises sai sai, tau thinner, tsim kub me ntsis, thiab thaum kawg opens los yog luv rau lub sheath. Nyob rau tib lub sijhawm, cov ntaub qhwv tuaj yeem tau softer, bulge, los yog tawg nyob rau hauv siab thiab kub.

Thawj kab ntawm kev tiv thaiv yog li cas lub tsev tsim. Nyob rau hauv siab -kev ua tau zoo cartridge tso cua sov, tshwj xeeb tshaj yog cov ua hauj lwm nrog high-voltage 800V ib zaug- lub taub hau teeb, cov hlau sab hauv yog tuav los ntawm ib tug ceramic core los yog, feem ntau, heev compressed magnesium oxide (MgO) rwb thaiv tsev. Superior units muaj MgO ntim 5 mus rau 7 npaug ntau dua li cov raj cua sov li niaj zaus. Qhov no yog ua tiav siv cov txheej txheem swaging uas compresses tag nrho cov sib dhos los ntawm 10-20%. Qhov siab heev ntawm kev sib cog lus no ua haujlwm rau ob lub hom phiaj tseem ceeb: - Nws tshem tawm cov hnab ntim cua uas ua raws li cov thermal insulators, uas tso cai rau cov cua sov tawm tam sim ntawd thiab ua kom qhov kub thiab txias ntawm cov xaim hauv 150-300℃qis dua hauv cov qauv tsim uas xoob packed . - Nws ruaj khov tuav lub zog ntawm kev vibration, txwv tsis pub nws txav mus los ntawm qhov chaw. hauv kev siv dynamic.

Qhov zais cia rau lub neej ntev yog kom phim cov watt ntom rau cov khoom siv thiab daim ntawv thov raug cua sov:
- **High watt density** (30–80 W/in² lossis 46–124 W/cm²): Qhov no yog qhov zoo tshaj plaws rau cov khoom uas tsis tas yuav siv txhua lub sijhawm lossis rau cov ntaub ntawv uas hloov cua sov zoo, xws li txhuas lossis tooj dag pwm, tooj liab platens, lossis nyias- phab ntsa steel tuag uas poob cua sov sai. Ntawm cov theem no, cov qauv swaged yuav tsum tau. - ** nruab nrab watt ntom ntom** (15–30 W / in² lossis 23–46 W / cm²): Zoo rau feem ntau cov cuab yeej steel (P20, H13) thiab yas molding ntawm nruab nrab qhov kub thiab txias qhov sib npaug ntawm cov cua sov- nce lub sij hawm thiab lub neej yog xav tau {{15} watt 1 dens rau nruab nrab 8–23 W / cm²) yog tsim nyog rau cov thermal conductors tsis muaj zog xws li stainless hlau pwm, tuab yas seem, roj hmab tebchaw, los yog cov kua dej khov, qhov kub hnyiab, degradation, los yog hauv zos overheating yuav tsum tau zam.

Nws tseem yog ib qho tseem ceeb kom paub tias qhov "qhov ntom" ntawm lub tshuab cua sov tsis yog tsuas yog hais txog watts; nws kuj yog hais txog yuav nruj npaum li cas cov rwb thaiv tsev yog ntim. Lub tshuab hluav taws xob lub tshuab hluav taws xob uas tsis ntim nruj tuaj yeem ntsuas cua sov hauv cov tub ntxhais, uas tuaj yeem ua rau cov hlau kub kub txaus ntshai, txawm tias qhov tsawg watt ceev. High-ntaus swaged designs muaj kev ruaj ntseg lis 2 mus rau 3 npaug ntawm wattage ntawm cov chav nyob zoo tib yam thaum tuav tib lub hlau kub.

Xav txog qhov haum ntau npaum li lub wattage kom tsis txhob muaj kev puas tsuaj thermal. Kev kam rau lub qhov yog qhov tseem ceeb heev. Yog tias muaj ntau tshaj 0.1 hli ntawm qhov chaw nruab nrab ntawm lub tshuab cua sov thiab nws cov kab noj hniav, nws ua haujlwm ntawm qhov sib txawv ntawm cov watt hauv zos ntau dua vim qhov sib txawv ntawm cov cua insulating. Qhov no shortens nws lub neej los ntawm ntau. Yog tias nws nruj heev (kev cuam tshuam haum yam tsis muaj reaming txaus), thermal expansion tuaj yeem tsoo lub plhaub, txav MgO, thiab ua kom luv rau hauv. Precision reamed los yog honed bores nrog ib tug clearance ntawm 0.02 mus rau 0.05 hli, nrog rau siab - kub thermal compound, xyuas kom meej tias kev sib cuag thiab tshav kub hloov yog zoo li lawv ua tau.

Thaum kawg, cov khoom siv hluav taws xob, cov khoom siv hluav taws xob tsim hluav taws xob, thiab cov khoom siv ua kom sov txhua yam ua haujlwm ua ke los ua kom cua sov ua haujlwm. Lub tswv yim yog txhawm rau nrhiav qhov sib npaug uas lub tshuab cua sov ua haujlwm ntawm qhov kub thiab txias yam tsis tau mus rau hauv qhov chaw txaus ntshai, txawm tias koj tab tom khiav cov kab ntim khoom yooj yim lossis cov pwm hauv aerospace nyuaj. Yuav kom tau txais qhov nyiaj tshuav no, tus kws kho mob tshwj xeeb yuav tsum tau saib ntau tshaj qhov tsuas yog qhov loj ntawm lub qhov nws haum rau. Lawv yuav tsum tau saib cov thermal dynamics ntawm tus kheej daim ntawv thov, xws li thermal mass, conductivity, tshav kub- txoj kev poob, lub sij hawm voj voog, thiab ambient tej yam kev mob. Processors prevent premature burnout, get faster and more even heating, and turn what could be a recurring problem into reliable, long-term performance by following watt density restrictions, requiring swaged construction for demanding operation, and checking fit and heat sinking.