Alumina ceramic Blokage waa qaybo badan oo waara oo buuxin kara shuruudaha codsiyada kala duwan. Waxyaabaha laga sameeyay dhoobada alumina ee horumarsan, alaabooyinkani waxay leeyihiin astaamo aad u wanaagsan sida qallafsanaanta sare, xasilloonida kulaylka, iyo caabbinta kiimikada, taas oo ka dhigaysa doorasho ku habboon jawiga laga yaabo in agab dhaqameedku aanay ku habboonayn. Waxqabadku maaha mid ka hooseeya kan dhoobada Zirconia. Makiinada dhoobada alumina waa badeecad kale oo muhiim ah oo taxane ah, oo loogu talagalay in lagu bixiyo xakamaynta saxda ah iyo go'doominta nidaamyada warshadaha. Qaybahan waxaa si taxadar leh loogu talagalay inay diiradda saaraan faahfaahinta, hubinta waxqabadka xasilloon xitaa marka lagu jiro xaalado adag. Naqshadeynta maddiibadihii dhoobada alumina waxay ku daraan astaamo cusub si kor loogu qaado shaqeynta iyo ilaalinta sharafta qaabdhismeedka. Haddi ay ahaan lahayd injineernimada saxda ah, wax-soo-saarka semiconductor, ama codsiyada kulaylka sareeyo, alaabooyinkan ayaa si taxadar leh loo diyaariyey si ay u noqdaan kuwo waara oo la isku halayn karo si loogu shaqeeyo muddada dheer.
Makiinada dhoobada alumina waxay door muhiim ah ka ciyaaraan habab badan oo tignoolajiyadeed horumarsan. Waxay ka samaysan yihiin alumina-nadiifinta sare leh, hubinta borosity aad u hooseeya iyo iska caabin aad u fiican, taas oo lagama maarmaan u ah ilaalinta tayada alaabta iyo hagaajinta hufnaanta hawlgalka. Noocaan baaquli dhoobada ah ayaa caadi ahaan laga helaa codsiyada jawi kuleyl sare leh, halkaas oo walxaha kale ay hoos u dhigi karaan ama ku guuldareystaan. Isticmaalka agabyada dhoobada sare ee alumina waxay awood u siinaysaa hab-nololeed heer sare ah oo kuleyl ah iyo guryaha dahaarka, taasoo ka dhigaysa inay ku habboon yihiin codsiyada kuleylka iyo qaboojinta. Intaa waxaa dheer, falcelin la'aanta maaddadan waxay hubinaysaa iswaafajinta sare ee walxaha kiimikada kala duwan, hubinta isku halaynta muddada dheer iyo shuruudaha dayactirka ugu yar. Alumina ceramic baffles (sida badan loo isticmaalo iyadoo lala kaashanayo maddiibadihii dhoobada) waxay bixiyaan caqabad wax ku ool ah si looga hortago socodka walxaha aan loo baahnayn, kor u qaadista xakamaynta nidaamka iyo badbaadada. Qaybahani waxay wada shaqeeyaan si ay u abuuraan hannaan hufan oo la isku halayn karo, yaraynta wakhtiga dhimista iyo hagaajinta wax soo saarka guud.
Qaybaha dhoobada sare ee alumina waxay leeyihiin isugeyn aad u sarreeya, taasoo ka dhigaysa inay ku habboon yihiin warshado badan. Tusaale ahaan, furayaasha dhoobada alumina waxaa loo isticmaalaa hababka u baahan xakamaynta heerkulka saxda ah iyo jawi wasakh la'aan ah ee qaybta elektiroonigga ah. Warshadaha caafimaadka, qaybahan waxaa loo isticmaalaa qalabka jeermis-dilista iyo aaladaha kale ee aadka la isku halleyn karo oo sax ah. Qaybta baabuurta ayaa sidoo kale ka faa'iidaysata isticmaalka dhoobadaan, gaar ahaan codsiyada ku lug leh hababka qiiqa heerkulka sare iyo qaybaha matoorada. Alumina ceramic baffles ayaa door muhiim ah ka ciyaara nidaamyadan, ka hortagga socdaalka walxaha waxyeelada leh iyo hubinta go'doominta waxtarka leh. Haddi ay ahaan lahayd hawada, tamarta, ama wax soo saarka, qaybahani waxay bixiyaan beddel la isku halayn karo oo waara oo ka duwan agabka dhaqameed, iyagoo gacan ka geysanaya kordhinta waxtarka iyo dhimista kharashyada.
ALUMINA TECH DATA
|
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
