Qaybaha Fargashiga Zirconia ee Wershadaha ee Bilaashka ah: Astaanta Injineerka Sare ee Ceramic
Dhanka injineernimada waxqabadka sare iyo wax soo saarka saxda ah, daacadnimada alaabtu maahan kaliya shuruud laakiin aasaaska guusha hawlgalka. Khadkayaga wax soo saarka dhoobada Zirconia wuxuu matalaa meesha ugu sarreysa ee tignoolajiyada dhoobada, gaar ahaan loo habeeyay si loo daboolo baahiyaha adag ee codsiyada warshadaha casriga ah. Xudunta ururintan ayaa ah Qaybahayada Wershadaha ee Zirconia, oo loogu talagalay in lagu bixiyo adkeysiga aan la barbar dhigi karin, caabbinta kiimikada, iyo xoogga makaanikada ee meelaha ay alaabta caadiga ahi ku fashilmaan. Qaybahan waxaa laga sameeyay sirconium dioxide oo nadiif ah, oo lagu farsameeyo farsamooyin horumarsan oo sintering ah oo hubinaya qaab-dhismeed cufan oo aan cillad lahayn. Nidaamkan wax-soo-saarka ee taxaddarka leh wuxuu keenaa badeecooyin muujinaya qallafsanaan gaar ah, xirtaan caabbinta, iyo xasilloonida kulaylka, taasoo ka dhigaysa lagamamaarmaan waaxyada u dhexeeya soo-saarka semiconductor ilaa wax-soo-saarka aaladda caafimaadka iyo nidaamyada makaanikada culus.
Dulmar guud ee Galinta dhoobada Wareega ee Zirconia
Kala-duwanaanta ceramics-ka zirconia waxay u oggolaanaysaa abuurista foomamka takhasuska sare leh, kuwaas oo ay ka mid yihiin gelitaanka dhoobada wareegga ah ee Zirconia waxay u taagan tahay waxyaabo muhiim ah oo ku jira hababka kala duwan ee shirarka. Gelida Kuwani ma aha oo kaliya siddo fudud; waxay yihiin xalal sax ah oo loo habeeyay oo loogu talagalay inay si aan kala go 'lahayn ugu habboonaadaan mashiinnada adag, iyagoo siinaya shaabad la isku halayn karo, dahaar, ama taageero qaabdhismeed. Habka qallafsan ee isbeddelka wejiga gaarka ah ee ku jira agabka zirconia wuxuu u oggolaanayaa qaybahan wareegtada ah inay u adkeystaan walaaca weyn iyada oo aan la jabin, hanti ka sooca iyaga ka duwan kuwa kale ee dhoobada ah sida alumina ama silikoon carbide. Markaad dhexda geliso qalabkaaga Wareegtada Zirconia ee dhoobada, waxaad kor u qaadaysaa cimriga nidaamkaaga oo aad yaraynaysaa soo noqnoqoshada dayactirka, taaso kor u qaadaysa guud ahaan hufnaanta hawlgalka iyo wax ku oolnimada.
Tilmaamaha Muhiimka ah iyo Faa'iidooyinka Farsamada
Fahamka sifada gaarka ah ee Qaybaha Wareega dhoobada ee Zirconia ayaa muhiim u ah injineerada iyo khubarada wax soo iibsiga ee raadinaya inay casriyeeyaan tilmaamahooda. Tilmaamaha soo socda ayaa qeexaya waxqabadka sare ee wax-soo-saarkayada:
Marka hore, xoogga farsamada ee gaarka ah waa astaanta alaabtayada zirconia. Xoog dabacsanaan leh oo aad uga sarreeya dhoobada dhaqameed ee badan, qaybahani waxay u adkeysan karaan culeysyo sare iyo xoog saameyn leh. Xoojintan waxaa kaaba adag jabka aad u fiican, kaas oo ka hortagaya fashilka masiibada ah ee ku jira diiqada degdega ah. Marka labaad, la'aanta kiimikada ee zirconia waxay ka dhigtaa mid u adkaysata daxalka asiidhka, alkalis, iyo dareerayaasha organic. Hantidani waxay hubisaa in Qaybaha Wareega dhoobada ee Zirconia ay ilaalinayaan xasilloonida cabbirkooda iyo hufnaanta dusha sare xitaa marka ay la kulmaan bay'ad kiimiko ah oo adag, sida kuwa laga helo dhirta warshadaynta kiimikada ama khadadka wax soo saarka daawada.
Marka saddexaad, guryaha kulaylka ayaa door muhiim ah ka ciyaara adeegsiga qaybahan. Zirconia waxay muujinaysaa kuleyl yar oo hooseeya iyo isugeyn hoose oo balaadhinta kulaylka, taas oo u oggolaanaysa inay si wax ku ool ah uga hortagto shoogga kulaylka. Tani waxay ka dhigan tahay in Zirconia Circular Ceramic Inserts ay u adkeysan karto isbeddelada heerkulka degdega ah iyada oo aan dillaacin ama aan isbeddelin, taas oo ka dhigaysa mid ku habboon codsiyada ku lug leh kuleylka iyo wareegyada qaboojinta. Intaa waxaa dheer, sifooyinka korantada ee zirconia ayaa aad u sarreeya, iyaga oo hubinaya in si badbaado leh loogu shaqeeyo qalabka korantada ee sare. Isku darka sifooyinkaan waxay abuuraan xal walxo ah oo labadaba waara oo la qabsan kara, oo awood u leh in ay u qabtaan si la isku halleyn karo oo dhan xaalado kala duwan oo warshadeed.
Sharaxaada tafatiran ee Wax-soo-saarka iyo Samaynta Alaabta
Xudunta u ah Qaybaha giraanta Wershadaha ee Zirconia waxay ku jirtaa xakamaynta saxda ah ee ka kooban budada ah ee zirconium dioxide. Waxaan isticmaalnaa zirconia xasiloon, oo sida caadiga ah lagu daro yttria ama magnesia, si aan u gaarno qaab dhismeedka tetragonal ama cubic wejiga heerkulka qolka. Dejintani waxay muhiim u tahay sare u qaadida saamaynta xoojinta inta lagu jiro adeegga. Habka wax-soo-saarku wuxuu ku bilaabmayaa diyaarinta alaabta cayriin ee nadiifka ah, oo ay ku xigto isku-dhafka iyo wax-shiidka si loo hubiyo qaybinta cabbirka walxaha isku midka ah. Buuxinta ka soo baxday ayaa markaa loo qaabeeyey iyadoo la isticmaalayo farsamooyin sare-u-qaadis ah sida cadaadis qallalan, riixid isostatic, ama shubid sibiq ah, taasoo ku xidhan joomatari gaarka ah ee looga baahan yahay Qayb kasta oo Wareega Ceramic Zirconia.
Sintering waa tallaabada ugu muhiimsan ee soo saarista qaybahan. Xarumahayaga waxay shaqaaleeyaan foornooyin heerkul sare leh oo awood u leh inay gaadhaan heerkul ilaa 1600 darajo Celsius. Inta lagu jiro marxaladan, jidhka cagaaran wuxuu maraa cufnaanta, baabi'inta porosity iyo gaaritaanka cufnaanta aragtida dhow. Waxqabadka ayaa ka sarreeya kan Alumina Ceramic & Nadiifinta Sare ee Alumina Ceramic.Waxqabadku kama hooseeyo kan dhoobada Zirconia & Aluminium Nitride ceramic.
XOGTA TECH ZIRCONIA
|
ITEM
|
UNIT
|
Zro2
|
ZTA
|
|
Density
|
G/cm3
|
6.05
|
413
|
|
Bending Resistance
|
Mpa
|
1300
|
1000
|
|
Compressive Strength
|
Mpa
|
3000
|
3300
|
|
Elasticity Modulus
|
Gpa
|
205
|
320
|
|
Shock Strength
|
Mpam/2
|
12
|
10
|
|
Vaporization Coefficient
|
M
|
25
|
20
|
|
Vickers Hardness
|
HV0.5
|
1200
|
1700
|
|
Thermal Expansivity
|
10-6K-1
|
10
|
9
|
|
Conductivity
|
W/MK
|
2
|
20
|
|
Thermal Shock Resistance
|
AT℃
|
280
|
260
|
|
Maximum Service Temperature
|
℃
|
1200
|
1600
|
|
20℃ Volume Resistance
|
Ω
|
≥1010
|
≥1012
|
|
Dielectric Strength
|
KV/mm
|
-
|
-
|
|
Apparent Porosity
|
%
|
0
|
0
|
|
Permittivity
|
Er
|
-
|
-
|
|
Dielectric Loss Angle
|
tanδ
|
-
|
-
|