Alumina dhoobada dhoobada ah ee nadiifka ah ee sareeysa (sida caadiga ah ka kooban 99% ilaa 99.9% alumina) & Alumina Ceramic Rods waa qalab muhiim ah oo loogu talagalay geeddi-socodka halkaas oo biraha dhaqameed ama kiciyeyaasha dhalada ay ku habboon yihiin wasakhowga birta, heerkulka aadka u daran, ama bay'ada kiimikada aadka u wasakhaysan.
Halkan waxaa ah dulmar ku saabsan sifooyinkooda ugu muhiimsan, codsiyadooda, iyo taxaddarrada: 1. Astaamaha iyo Faa'iidooyinka Muhiimka ah
Nadiif heersare ah oo aan wasakhayn: Alumina-nadiifinta sarraysa kama daadiso ions birta isku dar ah. Tani waxay muhiim u tahay koollada semiconductor, xeryahooda dawooyinka, iyo isku dhafka baytariyada lithium-ion.
Kiimiko la'aan: Aad bay ugu adkaysataa asiidhyada xooggan (sida sulfuric acid, hydrochloric acid), saldhigyo adag, iyo inta badan dareerayaasha organic, taas oo ka dhigaysa doorasho ku habboon kiimikooyinka iyo taangiyada korantada.
Deganaanshaha kulaylka: Awood u leh u adkeysiga heerkulka shaqada ee joogtada ah ilaa 1600°C ilaa 1700°C oo leh iska caabin shoog kulayleed oo wanaagsan, oo ku habboon isku-dhafka heerkulka sare ama kicinta milixda dhalaalaysa.
Makaanikada iyo xirashada iska caabbinta: Mohs adkaanta qiyaastii 9 (labaad kaliya dheeman), hubinta in kicinta uu adkaysi u leeyahay inuu xidho slurries ka kooban walxaha (sida warbaahinta shiida dhoobada, macdanta macdanta), ilaalinta xasilloonida cabbirka, oo aan xoqin ama xidhnayn si dhakhso ah.
Dahaarka korantada: Awood sare oo dielectric ah iyo caabbinta mugga, taas oo u oggolaanaysa isticmaalka badbaadada leh ee hababka ku lug leh qalabka elektarooniga ah ee xasaasiga ah ama korantada. 2. Codsiyada muhiimka ah ee wax soo saarka sare
Cilmi-baadhista agabka iyo biraha: Alwaaxyada dhalaalaysa ee kicinaya, qalabyada dhoobada heerkulka-sare leh, ama shiididda slurries macdanta. 3. Foomamka iyo Habaynta
Kiciyeyaashan waxa loo bixin karaa sidii ulo fudud oo qaabaysan/wareegsanaysa, ama hawo-mareenada/mabadaha taayirrada kakan (paddle, marawaxadaha, ama naqshadaha taayirrada kala firdhiya). Soo-saareyaashu waxay caadi ahaan bixiyaan adeegyada is-beddelka ee dhinacyada soo socda:
Darajooyinka daahirnimada: 96% (isticmaalka warshadaha guud), 99%/99.5% (waxqabad sare), 99.9% (semiconductor/ultra-nadiif).
Cabirrada: Dhexroorrada la beddeli karo (tusaale, 3 mm ilaa 200 mm) iyo dhererka, oo badanaa leh sagxadaha dhalaalaya (Ra ≤ 0.02 - 0.05 micrometers) si looga hortago ururinta walxaha.
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
|
Kala xiriir Hada
