1.Dab tsi yog thermal conductivity ntawm ntshiab zinc?
Cov lej ntau: Ntawm chav tsev kub (20℃- 25 degree), thermal conductivity ntawm siab -purity zinc yog feem ntau ntawm 110 thiab 120 W / (m·K). Tus nqi siv hluav taws xob tau hais dav dav yog 116 W / (m·K).
Cov ntaub ntawv sib piv:
Cov pa roj carbon steel: kwv yees . 50 W / (m·K)
Aluminium: kwv yees . 237 W / (m·K)
Copper: kwv yees . 400 W/(m·K)
Cua: kwv yees . 0.026 W/(m·K)
2.Dab tsi yog qhov tseeb thermal conductivity ntawm galvanized coils?
Substrate: Feem ntau qis- carbon steel nrog thermal conductivity ntawm kwv yees li 50 W / (m·K).
Txheej: Zinc txheej nrog thermal conductivity ntawm kwv yees li 116 W / (m·K).
3.Dab tsi yog qhov tseem ceeb ntawm cov thermal conductivity ntawm tag nrho cov galvanized kauj?
Zinc txheej yog nyias heev: lub thickness ntawm galvanized txheej feem ntau yog nruab nrab ntawm ob peb micrometers thiab kaum ntawm micrometers (piv txwv li, Z60 qhia zinc txheej nrog tag nrho qhov hnyav ntawm 60 g / m² ntawm ob sab, kwv yees li 4.2 μm tuab ib sab), thaum lub thickness ntawm cov hlau substrate yog los ntawm ib feem ntawm ib millimeter mus rau ob peb millimeters.
Thermal resistance yog series: kub yuav tsum dhau los ntawm zinc txheej thiab tom qab ntawd cov hlau txheej ua ntu zus raws li nws dhau los ntawm cov ntawv galvanized. Vim hais tias cov hlau substrate yog thicker, nws thermal kuj dominates.
4.Dab tsi yog qhov cuam tshuam?
Kub: Thermal conductivity hloov nrog kub. Feem ntau, cov thermal conductivity ntawm ib tug hlau txo me ntsis nrog nce kub.
Zinc-Iron Alloy Txheej: Thaum kub-dip galvanizing, zinc nkig- hlau alloy txheej txheej ntawm zinc txheej thiab steel substrate. Cov tshuaj lom neeg muaj pes tsawg leeg thiab cov qauv siv lead ua ntawm cov hlau no txawv ntawm cov zinc ntshiab, uas ua rau muaj qhov sib txawv me ntsis hauv nws cov thermal conductivity, tab sis cov no feem ntau suav nrog hauv kev tsim tag nrho.
Zinc Paj Morphology: Ntau qhov chaw morphologies, xws li cov paj zinc thiab cov paj uas tsis muaj zinc, muaj kev cuam tshuam me ntsis rau macroscopic thermal conductivity.
5.Dab tsi yog tag nrho cov thermal conductivity ntawm galvanized kauj?
Hauv kev siv engineering thiab kev hloov hluav taws xob, rau kev yooj yim, tus nqi ntawm cov hlau substrate feem ntau yog kwv yees, kwv yees li 50 W / (m·K). Qhov no txoj kev yog conservative thiab siv tau.