Indandatho Yokugaya Ye-Alumina Ceramic Esekelwe Ngensimbi Yezicelo Zokubopha Okuqinile
I-St.Cera'sindandatho yokugaya ye-alumina esekelwe ensimbiIhlanganisa ungqimba lokuguguleka lwe-alumina oluhlanzekile kakhulu (99.8% Al₂O₃) olunesisekelo sensimbi esinomshini oqondile (ngokuvamile i-aluminium noma insimbi engagqwali). Lo mklamo ohlanganisiwe unikeza ukumelana nokuguguleka okumangalisayo kanye nokungangeni kwamakhemikhali kwe-ceramic endaweni yokugaya, kuyilapho isisekelo sensimbi sinezela amandla omshini, ukufakwa okulula, kanye nokumelana nokuqhekeka okuqhekeka. Ungqimba lwe-alumina lunikeza amandla okugoba angu-361 MPa, ubulukhuni be-Vickers obungu-16 GPa, kanye nokuqina kokushisa okufika ku-800°C. Isisekelo sensimbi senziwe ngokwezifiso ngezimbobo zokugoba, izikhonkwane zokuthola, noma izakhiwo zikagesi zokuhlanganiswa emishinini yokugoqa, ama-grinder eplanethi, kanye nemishini ye-CMP.
Imininingwane(Isendlalelo se-Alumina esisekelwe ku-99.8% Al₂O₃):
| Impahla | Inani |
| Izinto | I-Alumina engu-99.8% (Ivory) |
| Ubuningi | 3.93 g/cm³ |
| Amandla Okugobeka | 361 MPa |
| Ukuqina kukaVickers | 16 GPa |
| Ukuqina Kokuphuka | 3–4 MPa·m¹/² |
| Ukwanda Kokushisa (25-1000°C) | 7.2×10⁻⁶/℃ |
| Ukuqeda Komphezulu (ubuso obugayiwe) | I-Ra ≤0.4 μm (igobile) |
| Ukuthamba | ≤5 μm ngaphezu kuka-100mm |
| Izinto Ezijwayelekile | I-Aluminium 6061, Insimbi Engagqwali 304/316 |
| Indlela Yokubopha | Ukubopha kwe-epoxy okunokushisa okuphezulu noma okwenziwa ngomshini |
| Ubukhulu | 5–20 mm (kucacisiwe ikhasimende) |
Qaphela: Izakhiwo zesisekelo sensimbi (ubuningi, i-modulus kaYoung, njll.) azinikezwanga ematafuleni ezinto ze-ceramic ezinikeziwe. Zilandela idatha ejwayelekile yemboni ye-aluminium/insimbi. Sicela ucacise uhlobo lwensimbi kanye nezidingo zokufaka.
Izicelo:
● Izindandatho zokugaya zomshini wokugoqa weplanethi
● Izindandatho zokusekela ze-CMP (ukupholisha ngomshini wamakhemikhali)
● Ukufakwa kahle kwezimpawu zobumba noma zensimbi
● Izinto zokuhlola ukuguguleka okunolaka
Inqubo Yokukhiqiza:
1. Indandatho ye-Alumina ceramic ixutshwe kusuka ku-99.8% powder kanye ne-precision gasted kuya ku-ID/OD yokugcina kanye ne-flatness.
2. Isisekelo sensimbi sisebenza ngomshini we-CNC onezimbobo zokufaka, ama-counterbores, noma imigwaqo emikhulu.
3. Indandatho ye-ceramic iboshelwe esisekelweni sensimbi kusetshenziswa i-epoxy enamandla aphezulu (izinga lokushisa lesevisi ≤200°C) noma iboshwe ngomshini (ivumela izinga lokushisa eliphakeme, kufika ku-500°C uma kusetshenziswa ama-shim ensimbi).
4. Ukufakwa kokugcina kobuso be-ceramic ukuze kufezwe ukuthamba okudingekayo kanye nokuphela kobuso.
5. Ukuhlanzwa kwe-Ultrasonic kanye nokuhlolwa okungu-100%.
Ikhwalithi yokulawula:
● Ukuhlolwa kwe-CMM kwe-ID, i-OD, ukujiya, kanye nezindawo zembobo
● Ukulinganisa ukuthamba kusetshenziswa i-laser interferometer
● Ukuhlolwa kwamandla ebhondi (ukuhlolwa kokudonsa noma ukucheba kumasampula ofakazi)
● Ukuhlolwa okubonakalayo kwemifantu noma izikhala ezingqimbeni zobumba
Izinzuzo ngaphezu kwezindandatho ze-All-Ceramic noma ze-All-Metal:
● Ubuso be-ceramic buhlala isikhathi eside ngama-5–10× kunensimbi eqinile
● Isisekelo sensimbi sinikeza ukuguquguquka - akukho bungozi bokuphuka okuqhekeka ngesikhathi sokufakwa
● Ukufakwa okulula (imigodi enezintambo, izikhonkwane ze-dowel) ngqo emishinini ekhona
● Izindleko eziphansi kunendandatho egcwele ye-ceramic yobubanzi obukhulu
● Isisekelo sensimbi singaklanywa ukuze sinamathisele i-magnetic chuck
Imikhawulo (amazwana agxekayo):
● Idatha yesisekelo sensimbi (ukwanda kokushisa, ukuqina) hhayi ematafuleni e-ceramic anikeziwe - bhekisela ezimpahleni zensimbi ezijwayelekile.
● Izinga lokushisa eliphezulu lokusebenza eliqhubekayo linqunyelwe yi-epoxy bond (≤200°C ye-epoxy ejwayelekile; ukubopha ngomshini kuvumela ukufika ku-500°C kodwa kunciphisa ukuvalwa).
● Akufanele ezindaweni zamakhemikhali ezinolaka ezihlasela isisekelo sensimbi (isb., ama-asidi aqinile). Ukuze uthole ukumelana okugcwele kwamakhemikhali, chaza indandatho ye-ceramic ephelele.
Ukwenza ngokwezifiso:
● Izinto zensimbi: i-aluminium (elula), insimbi engagqwali (emelana nokugqwala), noma i-Invar (ukwanda okuphansi kokushisa)
● Indlela yokubopha: i-epoxy (≤200°C), i-mechanical clamp (≤500°C), noma i-ceramic-to-metal ehlanganisiwe (≤800°C, izindleko eziphezulu)
● Izici zokufaka: imigodi enezintambo, imigodi yephini le-dowel, izikhala, noma isisekelo esinobuthi
● Ubukhulu besendlalelo se-ceramic: 3–20 mm
Xhumana nathi ukuze uthole isibuyekezo somklamo kanye nokukhetha inhlanganisela yensimbi ne-ceramic efanele kakhulu yokusetshenziswa kwakho kokugaya.
