Zida Zapamwamba Zoyera za Alumina Ceramic za Semiconductor & Industrial Applications
St.Cera imapanga zida za alumina (Al₂O₃) zopangidwa mwaluso kwambiri malinga ndi zomwe makasitomala akufuna. Pogwiritsa ntchito alumina ya 99.8% yoyera kwambiri, zigawozi zimapereka mphamvu yabwino kwambiri yopindika (361 MPa), kuuma kwambiri (16 GPa), komanso mphamvu yabwino kwambiri ya dielectric (15×10⁶ V/m). Yopangidwira zida za semiconductor, ma assemblies osatha, ma insulators amagetsi, ndi zida zotenthetsera kwambiri, zinthuzi zimapereka kuyamwa kwa madzi pafupifupi zero (0%) komanso kuchuluka kwa kutentha kwa 7.2×10⁻⁶/℃, kuonetsetsa kuti kukhazikika kwa miyeso kumakhala kolimba kwambiri.
Mafotokozedwe(kutengera 99.8% Al₂O₃):
Katundu | Mtengo |
| Zinthu Zofunika | 99.8% Alumina (Minyanga ya Njovu) |
| Kuchulukana | 3.93 g/cm³ |
| Mphamvu Yosinthasintha | 361 MPa |
| Kulimba kwa Kusweka | 3–4 MPa·m¹/² |
| Kuuma kwa Vickers | 16 GPa |
| Modulus ya Achinyamata | 380 GPa |
| Kutentha kwa Matenthedwe | 32 W/m·k |
| Kuwonjezeka kwa Kutentha (25–1000°C) | 7.2×10⁻⁶/℃ |
| Dielectric Constant | 9.6 |
| Ngodya Yotayika ya Dielectric | 0.0001 |
| Mphamvu ya Dielectric | 15×10⁶ V/m |
| Kukana Kwapadera | >10¹⁴ Ω·cm |
| Kutentha Kwambiri Kwambiri | 1600°C |
Mapulogalamu:
- · Zipinda zoyendetsera zinthu za semiconductor, malo owonera, ndi mbale zogawa mpweya
- · Mabushings osatha kutha, mphete zosindikizira, ndi mipira yonyamula katundu
- · Zotetezera magetsi zamagetsi zamphamvu komanso zotetezera magetsi za spark plug
- · Zipangizo zophikira ng'anjo, zothandizira chotenthetsera, ndi machubu oteteza thermocouple
Njira Yopangira:
Kukanikiza kwa isostatic → makina obiriwira → kupukuta pa 1600°C → Kupukuta kolondola kwa CNC / kulumikiza → kuyeretsa kwa ultrasound → Kuyang'anira 100% CMM. Ma geometri ovuta, makoma owonda (≥0.5 mm), ndi kulekerera kolimba (mpaka ±0.01 mm) zimachitika nthawi zonse.
Kuwongolera Ubwino:
Chovomerezeka cha ISO 9001:2015. Gulu lililonse limayesedwa mphamvu yopindika (kupindika kwa mfundo zitatu), kuuma (Vickers), mphamvu ya dielectric (ASTM D149), ndi kukana kutentha (ma cycle 10, 25°C ↔ 1000°C). Palibe ming'alu kapena zidutswa zomwe zimawoneka pansi pa maikulosikopu ya 20×.
Ubwino kuposa Zitsulo kapena Zida za Polima:
- · 3–5× yolimba kuposa chitsulo chosapanga dzimbiri (16 GPa vs. ~2 GPa)
- · Yopanda mankhwala — yolimbana ndi ma acid, alkali, ndi ma halojeni (kupatula HF)
- · Chotetezera magetsi >10¹⁴ Ω·cm, chomwe chimalola kugwiritsidwa ntchito m'malo okhala ndi magetsi ambiri
- · Kutumikira mosalekeza mpaka 1600°C, kupitirira malire a zitsulo kapena mapulasitiki
Kusintha:
Timalandira zojambula za makasitomala (STEP/IGS format) ndipo timapereka zitsanzo zofulumira (masabata 2-3). Zigawo zitha kuperekedwa ngati zophwanyidwa, zophwanyidwa, zolumikizidwa, kapena zopukutidwa (Ra ≤0.05 μm). Zozungulira m'mphepete, mabowo otsutsana, mabowo olumikizidwa, ndi mipata ya vacuum zilipo.
Chidziwitso: Pa ntchito zomwe zimafuna kulimba kwambiri kwa kusweka, ganizirani za zirconia (ZrO₂). Kuti mudziwe kutentha kwambiri, onani zinthu zathu za BeO kapena Si₃N₄. Deta yonse pamwambapa ikutsatira tebulo la katundu wa Al₂O₃ lomwe laperekedwa (giredi 99.8%).
