Alumina Ceramic Column : Taageerada qaabdhismeed ee Waxqabadka Sare ee Codsiyada Warshadaha
Tiirka dhoobada alumina waa qayb taageero qaabdhismeed gaar ah oo loogu talagalay in lagu buuxiyo shuruudaha baahida deegaanka warshadaha. Sida qayb muhiim ah oo ka mid ah nidaamyada waxqabadka sare ee kala duwan, tiirarka dhoobada ah ee isticmaalka warshadaha ayaa bixiya adkeysi gaar ah, caabbinta kulaylka, iyo xoogga farsamada. Waxaa laga sameeyay agabka dhoobada sare ee alumina, walxahan qaab dhismeedka dhoobada ah waxay ku fiican yihiin codsiyada halka qaybaha birta ama caagagga ah ay ku fashilmi karaan xaalado aad u daran. Waxqabadku kama hooseeyo kan dhoobada Zirconia & Aluminium Nitride ceramic.
Dulmarka tiirka dhoobada alumina waxay iftiiminaysaa doorkeeda sida shay muhiim u ah taageeridda mishiinada iyo qalabka adag. Tiirarka dhoobada ah waxay u adeegaan sida qaybaha muhiimka ah ee warshadaha sida wax soo saarka, tamarta, farsamaynta kiimikada, iyo injineernimada hawada. Awooddooda ay ku ilaalinayaan sharafta qaab-dhismeedka heerkul sare iyo culeysyo culus ayaa ka dhigaya doorashada la doorbido ee injineerada iyo naqshadeeyayaasha raadinaya xalal la isku halayn karo.
Astaamaha muhiimka ah ee tiirka dhoobada alumina waxaa ka mid ah xasilloonida kulaylka oo aad u wanaagsan, caabbinta daxalka, iyo guryaha dahaarka korantada. Qaybahan taageerada qaab-dhismeedka dhoobada waxaa lagu soo saaray iyadoo la adeegsanayo farsamooyin sax ah si loo hubiyo tayada iyo waxqabadka joogtada ah. Tiirka dhoobada ee isticmaalka warshadaha ayaa lagu heli karaa qiyaaso kala duwan iyo qaabeyn, taas oo u oggolaanaysa in lagu daro nidaamyo iyo qaabab kala duwan. Intaa waxaa dheer, dabiicadda aan shaqaynayn ee walaxda ayaa ka dhigaysa mid ku habboon in lagu isticmaalo deegaannada loo baahan yahay go'doominta korantada.
Marka la eego sharaxaad faahfaahsan, tiirka dhoobada alumina wuxuu ka kooban yahay aluminium oxide saafi ah oo sarreeya, kaas oo bixiya qallafsanaan sare iyo xirashada caabbinta. Tani waxay ka dhigaysaa ikhtiyaar aad u fiican codsiyada ku lug leh xidhiidhka iskhilaafsan ama walbahaarka farsamada. Dhammaadka dusha sare ee tiirka dhoobada ayaa ah mid siman oo isku mid ah, hubinta in ay la socdaan qaybaha nidaamka kale. Miisaankeeda fudud ee qaab-dhismeedkiisa xooggan wuxuu yareeyaa miisaanka guud ee nidaamka iyada oo aan waxyeello u geysan xoogga. Waxyaabahan qaab dhismeedka dhoobada ah ayaa sidoo kale u adkaysta shoogga kulaylka, taas oo ka dhigaysa inay ku habboon yihiin isticmaalka heerkulka sare iyo jawiga hooseeya.
Qaababka loo isticmaalo tiirka dhoobada aluminiumku waa kala duwan yihiin waxayna ku baahsan yihiin qaybo badan oo warshado ah. Qaybta tamarta, tiirarka dhoobada ah waxaa loo isticmaalaa foornooyinka kuleylka sarreeya iyo kuwa kulaylka beddela. Warshadaha kiimikaad, waxay ku bixiyaan taageero deggan deegaan daxalka. Goobta hawada sare, waxay ka shaqeeyaan qaybo u baahan iska caabin heerkul sare ah iyo miisaan yar. Intaa waxaa dheer, tiirarka dhoobada ah waxaa badanaa laga helaa qalabka wax soo saarka semiconductor, halkaas oo sifooyinkooda dahaarka iyo saxnaanta cabbirka ay muhiim u yihiin.
Dib u eegista isticmaalayaashu waxay muujinayaan isku halaynta iyo waxtarka tiirka dhoobada alumina ee codsiyada adduunka dhabta ah. Isticmaalayaal badan ayaa ka warbixiya waxqabadka nidaamka oo la hagaajiyay iyo nolosha adeeg dheer marka la isticmaalayo qaybahan taageerada qaabdhismeedka dhoobada. Injineerada waxay qadariyaan awoodda walxaha si ay ugu adkeystaan xaaladaha adag iyada oo aan hoos loo dhigin. Isticmaalayaasha qaarkood waxay xusaan in tiirka dhoobada ee isticmaalka warshaduhu uu si weyn hoos ugu dhigay kharashaadka dayactirka sababtoo ah dabeecadda muddada dheer. Qaar kale waxay ammaanaan saxnaanta iyo joogtaynta badeecada, taas oo hubinaysa isdhexgalka aan kala go 'lahayn ee nidaamyada jira.
Su'aalaha caadiga ah ee ku saabsan tiirarka dhoobada aluminiumku waxay inta badan ku wareegsan yihiin ku habboonaanta codsiyada gaarka ah. Tusaale ahaan, qaar badan ayaa waydiinaya in loo isticmaali karo jawi kuleyl sare leh, taas oo jawaabtu ay tahay haa. Qaar kale waxay wax ka weydiiyaan habka rakibidda, kaas oo caadi ahaan ku lug leh farsamooyinka kor u qaadista caadiga ah ee ku habboon inta badan qalabka warshadaha. Waxa kale oo xiiso leh iska caabbinta walxaha kiimikooyinka iyo awoodda ay ugu shaqeeyaan xaaladaha vacuum. Isticmaalayaasha badankoodu waxay ogaadaan in tiirka dhoobada ee isticmaalka warshaduhu uu buuxiyo ama dhaafo filashadooda marka la eego waxqabadka iyo cimri dhererka.
Guud ahaan, tiirarka dhoobada alumina waxay u taagan tahay xal la taaban karo oo heer sare ah oo loogu talagalay codsiyada warshadaha. Haddi loo isticmaalo sidii curiye qaab dhismeedka dhoobada mashiinada adag ama tiir dhoobada ah ee isticmaalka warshadaha ee deegaan baahida loo qabo, alaabtani waxay keentaa natiijooyin joogto ah. Isku darka xoogga, caabbinta kulaylka, iyo cimri dhererka, waa qayb muhiim u ah nidaamyada warshadaha casriga ah ee u baahan taageero la isku halleyn karo iyo waxqabadka muddada dheer.
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
