Alumina Aaladaha Caafimaadka ee Daryeelka Ilkaha: Qalabkan, ku tiirsan biocompatibility aad u fiican, iska caabinta daxalka iyo adkaanta sare ee dhoobada alumina, ayaa si weyn loogu isticmaalaa daryeelka ilkaha iyo ogaanshaha afka. Noocyada caadiga ah waxaa ka mid ah:
I. Noocyada Codsiga Muhiimka ah
Alumina dhammaan taajyada dhoobada ah / dib u soo celinta
Samee by sintering alumina sida alaabta ceeriin ugu weyn, waxay leeyihiin midab la mid ah iyo sifooyinka indhaha si ilkaha dabiiciga ah, soo bandhigaya bilicsanaanta aad u fiican iyo biocompatibility wanaagsan. Inta badan waxaa loo isticmaalaa soo celinta bilicda ilkaha hore waxaana sidoo kale loo isticmaali karaa soo celinta ilkaha danbe marka la eego xaaladaha leh xoogga calalin hooseeya. Waxa caadi ahaan loo adeegsadaa agabka soo celinta ilkaha marka lagu jiro dhaq-dhaqaaqa bukaan-socodka.
Qalabka nadiifinta ciid-qarxinta alumina
Waxaa ka mid ah mashiinnada aluminium-ka ah ee nadiifinta hawada, qoryaha ciidda-qarxinta ilkaha iyo qalab kale. Waxay isticmaashaa qaybo aluminium ah si ay u dhamaystirto nadiifinta ciid-qarxinta dusha iliga. Waxay si hufan uga saari kartaa wasakhda, wasakhda shaaha, kaydka jilicsan iyo daamurka ee dusha iliga, gaarista nadiifinta iliga iyo saamaynta caddaynta. Waa qalab nadiifin joogto ah oo ku jira dhaqtarka afka.
Alumina ilkaha lafaha lafaha
Xirmooyinka ilkaha lagu gooyo oo ay samaysay tignoolajiyada dhoobada alumina. Marka la barbardhigo biraha birta ah, aad bay u qurux badan yihiin waxayna leeyihiin awood dhismo oo ku filan. Waxay si adag u adeegsan karaan xoogga lafaha inta lagu jiro sixitaanka iliga waxayna yeelan karaan xanaaq yar oo unugyada afka ah.
Ilkaha la gashado iyo qaybo kale oo dhismeed
Ku dheji dhejisyada laga sameeyay dhoobada alumina ee nadiifka ah ee sare. Waxay yihiin kuwo u adkaysta xidhashada, daxalka u adkaysta, waxay leeyihiin badbaado bayooloji oo sarreeya, ma keenaan diidmo difaaceed oo biniaadmi ah, waxaana loo isticmaali karaa isku xidhka iyo qaybaha taageerada joogtada ah ee tallaalka ilkaha muddo dheer.
II. Faa'iidooyinka Qalabka Muhiimka ah
Qalabkan ilkaha ee aluminiumku guud ahaan waxay leeyihiin afar astaamood:
Waxay leedahay noole la jaanqaadi kara heer sare ah, ma laha biro bir ah oo culus, marar dhif ahna waxay keentaa xasaasiyad ama xanaaq cirrid;
Waxay u adkeysan kartaa heerkulka sare ee soo noqnoqda iyo nadiifinta cadaadiska sare, waxayna u adkaysataa daxalka jeermiska afka ee kala duwan ee sida caadiga ah loo isticmaalo, hubinta nolosha adeegga qalabka;
Waxay leedahay adayg sare iyo iska caabin xoog leh, uma badna inay xidhato ama isbeddelayso muddada dheer ee isticmaalka, iyada oo si sax ah loo xakameynayo heerka mikrometerka;
Waxay leedahay dahaar wanaagsan, kuma farageliso ururinta calaamadaha qalabka ogaanshaha sawirka afka, waxayna hubisaa saxnaanta xogta cudurka iyo daaweynta.
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
|