Nadiifinta Sare ee Alumina Alumina Ceramic Insulators: Injineerin sax ah oo loogu talagalay bay'ada aadka u daran
Dhinaca sayniska agabka horumarsan iyo wax soo saarka warshadaha, baahida loo qabo go'doominta korantada ee la isku halayn karo marka loo eego xaaladaha adag weligood may noqon mid ka weyn. Kala duwanaanshahayada qaaliga ah ee alaabada daahiyaha dhoobada Alumina waxay ka dhigan tahay meesha ugu saraysa ee injineernimada agabka, loogu talagalay inay la kulmaan heerarka adag ee warshadaha caalamiga ah ee u dhexeeya soo saarista semiconductor ilaa gudbinta korantada sare. Iyada oo la adeegsanayo 96% ilaa 99.6% aluminium oxide saafi ah (Al2O3), qaybahani waxay bixiyaan isku darka aan la barbar dhigi karin ee xoogga dielectric, dhaqdhaqaaqa kulaylka, iyo xoogga farsamada. Haddii aad u baahan tahay xalalka caadiga ah ee ka baxsan shelf-ka-baxsan ama caadadii Alumina Ceramic insulator oo loogu talagalay xannibaadyo joomatari oo gaar ah, awoodahayada wax-soo-saarka waxay hubinayaan tayada iyo waxqabadka joogtada ah ee u taagan imtixaanka waqtiga.
Astaamaha Muhiimka ah iyo Sareynta Farsamada
Faa'iidada aasaasiga ah ee ka faa'iidaysiga dhoobada alumina ee codsiyada muhiimka ah waxay ku jirtaa sifooyinka gaarka ah ee jirka iyo kiimikada. Qalabkani waxa ay muujinayaan iska caabin koronto oo aad u sarreeya, iyaga oo hubinaya in qulqulka ugu yar ee hadda socda uu xitaa ku jiro koronto sare. Joogtada dielectric-gu waxa ay ahaanaysaa mid deggan oo dhan inta jeer ee kala duwan, taas oo ka dhigaysa mid ku habboon inta jeer ee raadiyaha iyo codsiyada microwave-ka. Intaa waxaa dheer, caabbinta shoogga kulaylka ayaa u oggolaanaysa qaybahan in ay u adkeystaan isbeddellada heerkulka degdegga ah iyada oo aan dillaacin, sifo muhiim ah oo loogu talagalay walxaha kuleylka iyo foornada foornada. Adag ee alumina dhoobada sintered hababka dheeman, siinta iska caabin heer sare ah oo lid ku ah bay'ada abrasive. Intaa waxaa dheer, qallafsanaanta kiimikaad ee maaddadani waxay hubisaa inaysan ka falcelin badi asiidhka, alkalis, ama dareerayaasha organic, dammaanad qaadaya xasilloonida muddada-dheer ee jawiga daxalka ah. Marka la barbardhigo dhoobada kale sida zirconia ama beryllia, alumina waxay bixisaa dheelitirka ugu fiican ee waxtarka kharashka iyo waxqabadka guud ee ujeedo heerkul sare ah.
Sharaxaadda Alaabada oo Faahfaahsan iyo Heerarka Wax-soo-saarka
Nidaamkeena wax soo saarku wuxuu ku bilaabmaa xulashada budada alfa-alumina ee aadka u saafiga ah, kaas oo si taxadar leh loo farsameeyo si loo hubiyo qaybinta qaybinta isku midka ah. Iyada oo loo marayo farsamooyin cadaadis sare leh, oo ay ku jiraan riixitaanka isostatic iyo qaabeynta duritaanka, waxaan ku gaarnaa jirro cagaaran oo cufan kuwaas oo markii dambe lagu qooyay heerkul ka sarreeya 1700 darajo Celsius. Nidaamkan heerkulka sare ee sintering wuxuu baabi'iyaa porosity, taasoo keentay in qaab-dhismeed yar oo kor u qaadaya labadaba xoogga farsamada iyo daacadnimada dielectric labadaba. Kuwa doonaya tubbada dhoobada Alumina insulator, awoodeena farsamaynta saxda ah waxay u oggolaanaysaa dulqaad adag ee dhexroorka gudaha iyo dibadda, hubinta ku habboonaanta shirarka xasaasiga ah. Dhammaystirka dusha sare waxa lagu simi karaa siman muraayad u eg ama waxa lagaga tagi karaa qallafsanaan la kontaroolay iyadoo ku xidhan shuruudaha codsiga. Dufcad kastaa waxay martaa imtixaan adag, oo ay ku jiraan cabbiraadda korantada ee burburay, hubinta iska caabbinta mugga, iyo kormeerka cabbirka iyadoo la adeegsanayo mashiinnada cabbiraadda isku-dubbada. Ballanqaadkan ilaalinta tayada waxay ka dhigan tahay in caado kasta oo Alumina Ceramic insulator la keeno uu buuxiyo heerarka caalamiga ah sida ASTM iyo qeexitaanka IEC. Kala duwanaanshiyaha khadka alaabtayada waxaa ka mid ah saxannada fidsan, bushings, substrates, tuubooyinka, iyo dhismayaal kakan oo dalool badan leh, dhammaantoodna waxaa lagu sameeyay dadaal isku mid ah oo heer sare ah.
Xaaladaha Codsiga Caalamiga ah iyo xalalka Warshadaha
Isticmaalka alumina-sare ee aluminiumku wuxuu ku fidsan yahay qaybo badan oo kala duwan. Warshadaha elektiroonigga ah, dahaadhiyeyaashani waxay u adeegaan sida substrates-ka wareegyada isku dhafan iyo qaybaha korantada, halkaasoo kulaylka waxtarka leh ay muhiim u tahay ka hortagga kulaylka. Qaybta baabuurta, gaar ahaan kor u kaca baabuurta korantada, qaybaha alumina ayaa loo isticmaalaa daahyada dabka iyo guryaha dareemayaasha sababtoo ah awoodda ay u leeyihiin inay xamili karaan kulaylka sareeyo. Injineerada hawada sare waxay ku tiirsan yihiin agabkan si ay u dahaadhaan qaybaha matoorada jet-ka iyo nidaamyada dayax-gacmeedka, halkaas oo kaydinta miisaanka iyo isku halaynta ay muhiim tahay. Soosaarayaasha aaladaha caafimaadku waxay u adeegsadaan kala duwanaanshaha aluminiumka bioocompatible ee aaladaha qalliinka iyo guryaha la geliyo aaladda. Intaa waxaa dheer, dhinaca iftiinka, sodium-cadaadiska sarreeya iyo nalalka halide birta waxay shaqaaleeyaan tuubooyinka alumina ceramic arc si ay ugu jiraan balaasmaha arc iyadoo la adkeynayo cadaadiska gudaha iyo heerkulka xad dhaafka ah. Rogayaasha cadceedu waxay sidoo kale ka faa'iidaystaan isticmaalka caadooyinka Alumina Ceramic units insulator si ay si badbaado leh ugu maareeyaan tamarta sare ee DC. Laga soo bilaabo sariiraha shaybaadhka ilaa alaabta foornada ee warshadaha, la qabsiga alaabtan ayaa ka dhigaysa mid aan lagama maarmaan u ah horumarinta tiknoolajiyada casriga ah. Waxqabadka ayaa ka sarreeya kan Alumina Ceramic & High Purity Alumina Ceramic.
Waxqabadku kama hooseeyo kan dhoobada Zirconia & Aluminium Nitride ceramic.
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
