Vim li cas qhov zoo ntawm MgO thiaj li tseem ceeb hauv kev tsim cov raj cua sov?
Rau hluav taws xob cua sov raj manufacturers, magnesium hmoov (magnesium oxide hmoov, MgO) yog "lub plawv" ntawm lub tshuab hluav taws xob cua sov raj. Nws qhov ua tau zoo ncaj qha txiav txim siab txog kev nyab xeeb, kev ua haujlwm, thiab kev pabcuam lub neej ntawm lub raj cua sov.
Magnesium hmoov yog dab tsi?
Lub npe raug rau "magnesium oxide hmoov" yog MgO, ionic compound uas muaj magnesium thiab oxygen. Nws yog xim dawb, tsis muaj ntxhiab, thiab saj tsis zoo hmoov.
Hauv cov ntawv thov kev lag luam feem ntau, xws li cov khoom siv hluav taws xob cua sov, qhov peb hu ua "magnesium hmoov" yog qhov tseeb "magnesium oxide hmoov" (MgO), ruaj khov, tsis yog - cov khoom siv hluav taws xob hluav taws xob, qhov sib txawv ntawm cov hlau nplaum magnesium hmoov.
Vim li cas nws tseem ceeb heev rau kev siv siab - zoo magnesium oxide hmoov hauv cov khoom cua sov?
Qhov no stems los ntawm nws plaub yam tseem ceeb, uas ncaj qha txiav txim siab qhov kev ua tau zoo, kev nyab xeeb, thiab lub neej ntawm cov cua sov:
1. Cov rwb thaiv tsev zoo heev
Magnesium oxide is an excellent insulator with an extremely high resistivity (>10¹³ Ω·cm ntawm chav tsev kub). Nws ntseeg tau cais cov hluav taws xob hluav taws xob hluav taws xob hluav taws xob (cov hlau tsis muaj zog) los ntawm cov hlau nyob ib puag ncig, tiv thaiv kev xau lossis luv luv thiab ua kom cov neeg siv kev nyab xeeb. Qhov no yog nws txoj haujlwm tseem ceeb tshaj plaws.
2. Zoo heev thermal conductivity
Magnesium oxide lub thermal conductivity (kwv yees li 30-40 W/(m·K)) yog qhov zoo tshaj plaws ntawm huab cua. Nws ua tau zoo thiab sib npaug hloov qhov siab -kub kub uas tsim los ntawm cov cua sov xaim mus rau cov hlau casing, thiab tom qab ntawd mus rau cov khoom siv cua sov. Qhov no tsis yog tsuas yog txhim kho cov cua sov kom zoo xwb tab sis kuj tiv thaiv cov cua kub hauv cov cua sov hlau, uas tuaj yeem ua rau muaj kev kub ntxhov hauv cheeb tsam thiab kub hnyiab, yog li txuas nws lub neej ntev . 3. Cov tshuaj lom neeg ruaj khov thiab kub kub ua haujlwm.
3.Sintered magnesium oxide muaj qhov melting point txog 2800 degree.
Nws yog qhov ruaj khov heev ntawm kev ua haujlwm kub ntawm cov cua sov (ntau pua txog txhiab degrees Celsius). Nws tsis decompose, volatilize, los yog chemically react nrog lub encapsulated cua sov hlau los yog hlau raj plhaub, kom ntseeg tau ntev -lub sij hawm.
4. Lub zog siv tshuab siab thiab ntim ntim
Thaum lub sij hawm tsim cov txheej txheem ntawm cov khoom cua sov, cov txheej txheem "tube shrinking" tshwm sim, qhov twg cov hlau raj yog compressed nyob rau hauv lub siab loj heev kom compact magnesium oxide hmoov nyob rau hauv. Siab - zoo magnesium oxide hmoov nrog cov khoom me me me me tuaj yeem tiv taus qhov siab no yam tsis muaj kev sib tsoo. Tom qab compaction, nws ua tiav cov ntim ntim siab heev, tshem tawm cov voids sab hauv, kom ntseeg tau qhov siab tshaj plaws rwb thaiv tsev thiab thermal conductivity, thiab tiv thaiv kev ua haujlwm degradation vim kev co.
Raws li cov khoom no, magnesium oxide hmoov feem ntau yog siv hauv:
Cov ntsiab lus cua sov: Qhov no yog qhov chaw thov loj tshaj plaws. Nws yog siv nyob rau hauv ntau yam tubular cua sov ntsiab (cov cua kub raj), strip heaters, phaj heaters, thiab lwm yam kev siv. Nws feem ntau pom muaj nyob rau hauv hluav taws xob kettles, qhov cub, qhov chaw tso cua sov, muaj boilers, thiab lwm yam.
Hauv kev ua lag luam, tus qauv / nruab nrab- qib magnesium hmoov muaj kwv yees li 98% mus rau 99.3% MgO purity, khav theeb zoo heev rwb thaiv tsev thiab thermal conductivity, thiab zoo - tswj kev nqus dej. Nws ua tau raws li qhov yuav tsum tau ua ntawm feem ntau - lub hom phiaj hluav taws xob cua sov cov ntsiab lus, ua rau nws yog ib qho kev xaiv nrov rau cov khoom siv hauv tsev xws li hluav taws xob, qhov cub, microwave ncu, mov cookers, thiab dej rhaub.
Common Mesh thiab Micrometer (μm) Conversion Table:
|
Mesh |
Aperture (μm) |
Kev piav qhia ntawm Daim Ntawv Thov hauv Magnesium Oxide Powder |
|
20 - 40 mesh |
850 - 425 μm |
Coarse hais yog siv los ua lub hauv paus ntsiab lus thiab muab kev txhawb nqa. |
|
40 - 100 mesh |
425 - 150 μm |
Cov khoom nruab nrab yog cov khoom tseem ceeb ntawm lub cev hmoov. |
|
100 - 325 mesh |
150 - 45 μm |
Cov khoom zoo yog siv los sau qhov khoob ntawm cov khoom nruab nrab. |
|
-325 mesh |
< 45 μm |
Ultra- cov hmoov zoo, siv los sau cov qhov khoob me me kom huv si, tab sis ntau dhau tuaj yeem cuam tshuam cov dej ntws. |
Yuav tsum ua li casMgOyuav raug xaiv raws li cua sov raj txoj kab uas hla thiab cua sov hlau?
Thaum xaiv magnesium hmoov, thov qhia cov khoom siv, daim ntawv thov, txoj kab uas hla, thiab qhov ntev ntawm cov cua sov.
A.Rau cua sov tubular nrog txoj kab uas hla ntawm 8 hli los yog ntau dua, siv 40-325 mesh magnesium hmoov rau nruab nrab- thiab cov ntawv siv kub qis, xws li hauv cov tshuab ua mov cua sov.
Rau cua sov tubular nrog ib txoj kab uas hla ntawm 7-8mm, siv 50-325 mesh magnesium hmoov rau nruab nrab- thiab kub-kub daim ntaub ntawv, xws li nyob rau hauv irons thiab kettles.
Rau cua sov tubular nrog ib txoj kab uas hla ntawm 6.5mm los yog tsawg dua, siv 60-325 mesh magnesium hmoov rau kev siv kub, xws li hauv qhov cub thiab cua fryers.
Davinci tshuab ua dab tsi rau koj?
Davinci tau tshwj xeeb hauv cov khoom siv me me, suav nrog cov khoom siv cua sov, rau 15 xyoo. Peb muab tsis tau tsuas yog cov cuab yeej thiab pwm, tab sis kuj raw cov ntaub ntawv. Rau kev pib ua lag luam, peb muab ib qho - nres cov kev pab cuam, pab cov neeg siv khoom xaiv cov kab tsim khoom tsim nyog tshaj plaws thiab ua tiav cov khoom lag luam zoo dua, txuag lawv cov teeb meem ntawm kev tsim khoom tsis muaj kev paub.
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