Koofiyadaha dhoobada aluminium ee nadiifka ah ee nadiifka ah waa xal tayo sare leh oo si gaar ah loogu talagalay codsiyada warshadaha iyo tignoolajiyada horumarsan, oo ku habboon xaaladaha u baahan saxnaanta, adkeysiga, iyo kuleylka kuleylka. Alaabtani waa qayb ka mid ah taxanaha dahaadhka dhoobada ee khaaska ah, oo ay ku jiraan dahaarka dhoobada saxda ah iyo koofiyadaha dhoobada u adkaysta kulaylka, ujeedaduna tahay in lagu bixiyo waxqabad heersare ah oo deegaan baahi badan leh. Koofiyadaha dhoobada sare ee saafiga ah ee alumina waxay ka samaysan yihiin aluminium saafi ah, hubinta sifooyin koronto oo heer sare ah, xoogga farsamada, iyo iska caabinta heerkulka sare, taas oo ka dhigaysa mid aad ugu habboon nidaamyada muhiimka ah ee u baahan kalsoonida muddada dheer iyo xasilloonida.
Dulmarka qaybtan dhoobada ahi waxay muujinaysaa doorkeeda muhiimka ah ee codsiyada kala duwan ee waxqabadka sare leh. Haddi ay ahaan lahayd dahaadhka dhoobada ee nidaamyada korantada ama sida daboolka dhoobada kulaylka u adkaysta ee mishiinada warshadaha, alaabtani waxay isku daraysaa injineernimada saxda ah iyo walxo sare. Naqshaddeedu waxay si fudud u dhexgeli kartaa nidaamyo adag, oo siinaya caqabad la isku halleyn karo oo ka soo horjeeda cadaadiska hadda iyo kulaylka. Iyada oo diiradda la saarayo tayada iyo shaqeynta, koofiyadaha dhoobada alumina ee nadiifka ah ee sarreeya waxay la kulmaan heerarka adag ee looga baahan yahay warshadaha casriga ah iyo injineernimada adduunka oo dhan.
Astaamaha ugu muhiimsan ee koofiyadaha dhoobada ah waxaa ka mid ah xooggooda dielectric aadka u sarreeya, hubinta dahaarka waxtarka leh xitaa marka lagu jiro xaalado aad u daran. Porosity hooseeya iyo cufnaanta sare ee maaddadu waxay gacan ka geysataa hufnaanta qaab-dhismeedkeeda, taas oo ka dhigaysa mid ku habboon codsiyada u baahan waxqabadka xasilloon ee muddada dheer. Intaa waxaa dheer, koofiyadaha dhoobada ah waxay leeyihiin kororka kulaylka oo aad u fiican, taas oo u oggolaanaysa in ay si hufan u daadiyaan kulaylka iyo ilaalinta heerkulka shaqada ee ugu fiican. Tilmaamahani waxay ka dhigaan qaybaha muhiimka ah ee hababka elektaroonigga ah ee horumarsan, codsiyada hawada hawada, iyo qalabka warshadaha heerkulka sare. Xirmooyinka dhoobada saxda ah ee lagu daray xariiqan alaabada waxay sii kordhinayaan waxtarka iyo badbaadada guud ee nidaamyada la taageeray.
Marka la eego sharaxaad faahfaahsan, koofiyadaha dhoobada alumina ee nadiifka ah ee sarreeya ayaa la soo saaray iyadoo la adeegsanayo tignoolajiyada ugu dambeeyay, hubinta saxnaanta iyo joogtaynta. Alaab kastaa waxay martaa tilaabooyin adag oo lagu xakameynayo tayada si loo hubiyo u hogaansanaanta heerarka caalamiga ah. Habka wax-soo-saarka waxaa ka mid ah qaabaynta saxda ah, shaandhaynta, iyo shiididda si loo gaaro qeexitaannada loo baahan yahay. Sidaa darteed, koofiyadahan dhoobada ah kaliya maaha inay leeyihiin sifooyin kulayl aad u fiican laakiin sidoo kale waxay ilaaliyaan saxnaanta cabbirka, taas oo muhiim u ah la jaanqaadida qaybaha nidaamka kale. Koofiyadaha dhoobada ah ee kulaylka u adkaysta ayaa loo door bidaa awooddooda inay ku sii jiraan jawi kuleyl sare leh oo muddo dheer ah, oo ku habboon codsiyada sida wax soo saarka semiconductor, nidaamyada laser, iyo qalabka gudbinta korantada sare.
Alaabtan ayaa lagu dabaqi karaa warshado badan, oo ay ku jiraan elektiroonigga iyo isgaarsiinta, tamarta, iyo waaxda baabuurta. Qalabka elektiroonigga ah, qaybaha daahiyaha dhoobada ayaa ka caawiya ka hortagga wareegyada gaaban iyo hubinta hawlgalka badbaadada ee qalabka. Goobaha warshadaha, daboolyada dhoobada ah ee kuleylka u adkaysta waxay ka ilaaliyaan qaybaha xasaasiga ah waxyeelada kulaylka, taas oo kordhinaysa cimriga qalabka. Ku-soo-saarka dhoobada saxda ah ayaa sidoo kale si ballaaran loogu isticmaalaa qalabka caafimaadka sababtoo ah hantidooda aan shaqaynayn iyo kuwa noolaha, taas oo ka dhigaysa doorasho ku habboon codsiyada muhiimka ah. Haddi ay ahaan lahayd jawi heerkul sare ah ama qayb ka mid ah nidaamyada korantada ee adag, koofiyadaha dhoobada alumina ee nadiifka ah ee nadiifka ah ayaa caddaynaya inay yihiin xal la isku halleyn karo oo la isku halleyn karo.
ALUMINA CERAMIC TECH XOGTA
|
ITEM
|
UNIT
|
99.9 ALUMINA
|
|
Density
|
G/cm3
|
3.94
|
|
Bending Resistance
|
Mpa
|
500
|
|
Compressive Strength
|
Mpa
|
3300
|
|
Elasticity Modulus
|
Gpa
|
400
|
|
Shock Strength
|
Mpam/2
|
5.2
|
|
Vaporization Coefficient
|
M
|
12
|
|
Vickers Hardness
|
HV0.5
|
2000
|
|
Thermal Expansivity
|
10-6K-1
|
8.0
|
|
Conductivity
|
W/MK
|
28
|
|
Thermal Shock Resistance
|
AT℃
|
280
|
|
Maximum Service Temperature
|
℃
|
1750
|
|
20℃ Volume Resistance
|
Ω
|
≥1015
|
|
Dielectric Strength
|
KV/mm
|
30
|
|
Apparent Porosity
|
％
|
0
|
|
Permittivity
|
Er
|
10
|
|
Dielectric Loss Angle
|
tanδ
|
0.001
|
ALUMINA budada TECH XOGTA
|
ITEM
|
LS-110
|
LS-120
|
LS-130
|
LS-110F
|
LS-220
|
LS-210
|
|
LOI(％)
|
0.02
|
0.02
|
0.05
|
0.08
|
0.03
|
0.01
|
|
Na2O(％)
|
0.05
|
0.04
|
0.03
|
0.05
|
0.07
|
0.08
|
|
SiO2(％)
|
0.07
|
0.07
|
0.07
|
0.09
|
0.02
|
0.02
|
|
Fe2O3(％)
|
0.03
|
0.03
|
0.03
|
0.03
|
0.02
|
0.02
|
|
Al2O3(％)
|
99.9
|
99.9
|
99.9
|
99.9
|
99.9
|
99.9
|
|
average grain diameter(um)
|
1.7
|
2.1
|
2.2
|
1.1
|
2.7
|
2.9
|
|
αgrain diameter(um)
|
1-2
|
1-3
|
2-4
|
1-2
|
2-3
|
3-5
|
|
BET Surface Area(m2/g)
|
1.9
|
1.4
|
1.4
|
3.2
|
1.6
|
0.9
|
|
Pressure-induced volume density(g/cm3)*
|
2.22
|
2.27
|
2.31
|
2.29
|
2.22
|
2.32
|
|
Forming density(g/cm3)**
|
2.13
|
2.20
|
2.23
|
2.33
|
2.17
|
2.30
|
|
Sintering volume density(g/cm3)**
|
3.78
|
3.79
|
3.78
|
3.89
|
3.81
|
3.77
|
|
Line collection efficiency(％)
|
18.0
|
17.2
|
16.7
|
15.7
|
17.5
|
15.3
|
Kala xiriir Hada
