1.Dab tsi yog qhov cuam tshuam ntawm qhov sib txawv aluminothermic coefficients?
Thermal conductivity: tus nqi siab dua, qhov muaj zog ntawm cov khoom siv thermal conductivity thiab qhov hloov hluav taws xob sai dua.
Qhov sib txawv ntawm txhuas: Ntshiab aluminium muaj qhov zoo tshaj plaws thermal conductivity tab sis qis dua txhua yam muaj zog. Feem ntau siv aluminium alloys (xws li 3-series, 5-series, thiab 6-series) muaj qis thermal conductivity vim yog qhov sib ntxiv ntawm lwm cov ntsiab lus, tab sis tseem muaj ntau dua li cov hlau.
Kev cuam tshuam ntawm steel muaj pes tsawg leeg: Lub thermal conductivity ntawm steel kuj cuam tshuam los ntawm cov ntsiab lus carbon thiab alloying ntsiab. Qhov qis qis tshaj -carbon txias- dov steel muaj cov thermal conductivity zoo, thaum stainless hlau (xws li 304) muaj cov thermal conductivity qis dua (kwv yees li 16 W / m·K), ua rau nws tsis zoo thermal conductor.
2.Dab tsi yog qee qhov tsim nyog rau kev siv cov ntawv txhuas?
Radiators: CPU heatsinks rau cov khoom siv hluav taws xob, LED lub teeb heatsinks, cua sov dissipation fins rau cov khoom siv fais fab, thiab lwm yam.
Cookware: lauj kaub, lauj kaub, diav, thiab lwm yam, yuav tsum tau ceev thiab txawm cua sov ntawm zaub mov.
Thaum tshav kub kub exchangers: tsheb radiators, cua txias condenser / evaporator fins, thiab lwm yam.
Cheebtsam uas yuav tsum tau muaj qhov kub thiab txias: xws li qhov chaw ntawm pwm thiab dov mills.
3.Dab tsi yog cov ntawv thov uas tsim nyog rau kev siv txias -rolled steel?
Cov yam ntxwv ntawm cov khoom: lub tsev thav duab, lub cev tsheb, txee, thiab lwm yam, feem ntau xav tau lub zog thiab rigidity; thermal conductivity tsis yog thawj qhov kev xav.
Cov ntawv thov uas xav tau kev rwb thaiv tsev lossis txo cov cua sov: Cov txheej txheem sab nrauv thiab kev txhawb nqa ntawm qee yam khoom siv tuaj yeem muab qee qhov thermal rwb thaiv tsev.
Tus nqi -sensitive applications: Thaum thermal conductivity tsis tseem ceeb, steel yog ib qho kev xaiv pheej yig dua.
4.Dab tsi nws cuam tshuam rau kev ua tshuab?
Vuam:
Aluminium: High thermal conductivity yuav tsum muaj qhov loj dua, ntau cov khoom siv hluav taws xob ntau dua kom yaj cov khoom siv hauv paus; Txwv tsis pub, cua sov dissipates sai heev, ua rau tsis zoo welds.
Hlau: Thaum tshav kub kub yog yooj yim dua concentrated nyob rau hauv weld cheeb tsam, ua rau nws kuj yooj yim rau tswj.
Txiav (xws li laser txiav):
Aluminium: High reflectivity thiab thermal conductivity ua rau nws nyuaj rau lasers nqus thiab yaj, yuav tsum tau ntau dua - lasers.
Hlau: Kev nqus tau zoo ntawm cov fiber ntau lasers, ua rau kev txiav ntau dua.
Stamping: Lub tshav kub uas tsim los ntawm siab -Speed stamping dissipates sai dua nyob rau hauv txhuas, uas yuav txo tau lub zos overheating thiab pwm coj.
5.Vim li cas thiaj muaj qhov sib txawv loj?
Aluminium: Ib qho zoo heev conductor ntawm tshav kub thiab hluav taws xob. Nws cov hlau sib txuas thiab cov hluav taws xob dawb hauv nws tuaj yeem hloov hluav taws xob tau zoo heev.
Hlau (hlau{0}}raws li alloy): muaj cov pa roj carbon atoms, alloying cov ntsiab lus, thiab siv lead ua tsis xws luag (xws li dislocations), uas ua rau tawg electrons thiab phonons (lattic vibrations) uas ua cua sov, yog li txo nws cov thermal conductivity.