Indandatho Yokugaya yeCeramic ye-Alumina exhaswa yiMetal-Backed yezicelo zokuLapping eziQinisekileyo
ISt.Cera'sindandatho yokugaya ye-alumina esekwe kwisinyithiIdibanisa umaleko wokuguguleka we-alumina (99.8% Al₂O₃) we-ceramic ococekileyo kakhulu kunye ne-backing yesinyithi eyenziwe ngomatshini (ngesiqhelo i-aluminium okanye intsimbi engatyiwayo). Olu yilo lwe-hybrid lubonelela ngokumelana nokuguguleka okugqwesileyo kunye nokungasebenzi kakuhle kweekhemikhali ze-ceramic kumphezulu wokusila, ngelixa isiseko sesinyithi songeza amandla oomatshini, ukuxhonywa lula, kunye nokumelana nokuqhekeka okubuthathaka. Umaleko we-alumina unika amandla okuguguleka angama-361 MPa, ubunzima beVickers obuyi-16 GPa, kunye nokuzinza kobushushu ukuya kuthi ga kwi-800°C. Isiseko sesinyithi senziwe ngokwezifiso ngemingxunya yokuxhoma, iiphini zokufumana, okanye iimpawu zemagnethi zokudityaniswa koomatshini bokugoba, ii-planetary grinders, kunye nezixhobo ze-CMP.
Iinkcukacha(Umaleko we-Alumina usekwe kwi-99.8% Al₂O₃):
| Ipropati | Ixabiso |
| Izinto eziphathekayo | I-99.8% ye-Alumina (i-Ivory) |
| Uxinano | 3.93 g/cm³ |
| Amandla okuGuquka | I-361 MPa |
| Ubunzima bukaVickers | 16 GPa |
| Ukuqina Kokwaphuka | 3–4 MPa·m¹/² |
| Ukwanda kobushushu (25-1000°C) | 7.2×10⁻⁶/℃ |
| Ukugqitywa komphezulu (ubuso obucocayo) | I-Ra ≤0.4 μm (idibene) |
| Ukuthe tyaba | ≤5 μm ngaphezulu kwe-100mm |
| Izinto eziqhelekileyo | I-Aluminiyam 6061, Intsimbi Engagqwaliyo 304/316 |
| Indlela yokubopha | I-epoxy enobushushu obuphezulu okanye i-mechanical clamping |
| Ubukhulu | 5–20 mm (umthengi uchaziwe) |
Qaphela: Iipropati zesiseko sesinyithi (ubuninzi, i-Young's modulus, njl.njl.) azibonelelwa kwiitheyibhile zezinto zeseramikhi ezibonelelweyo. Zilandela idatha eqhelekileyo yoshishino lwe-aluminium/intsimbi. Nceda ucacise uhlobo lwesinyithi kunye neemfuno zokufakelwa.
Izicelo:
● Amakhonkco okugaya oomatshini bokugquma iiplanethi
● Amaringi okuxhasa e-CMP (ukupholisha ngoomatshini bekhemikhali)
● Ukugquma ngokuthe tye izitywina zeseramikhi okanye zesinyithi
● Izixhobo zovavanyo zokuguguleka okurhabaxa
Inkqubo yoMveliso:
1. Indandatho ye-alumina ceramic ixutywe ukusuka kwi-99.8% yomgubo kunye nokucocwa okuchanekileyo ukuya kwi-ID/OD yokugqibela kunye nokuba tyaba.
2. Isiseko sesinyithi senziwe ngomatshini we-CNC onemingxuma yokuxhoma, ii-counterbores, okanye iindlela eziphambili.
3. Indandatho yeseramikhi ibotshelelwe kwisiseko sesinyithi kusetyenziswa i-epoxy enamandla aphezulu (iqondo lobushushu lenkonzo ≤200°C) okanye ibotshelelwe ngoomatshini (ivumela ubushushu obuphezulu, ukuya kuthi ga kwi-500°C ukuba usebenzisa ii-shims zesinyithi).
4. Ukudityaniswa kokugqibela komphezulu weseramikhi ukuze kufunyanwe ukuthamba okufunekayo kunye nokugqitywa komphezulu.
5. Ukucocwa kwe-ultrasonic kunye nokuhlolwa okulinganayo kwe-100%.
Ulawulo lwemeko:
● Ukuhlolwa kwe-CMM kwe-ID, i-OD, ubukhulu, kunye neendawo zemingxunya
● Ukulinganisa ukutyibilika kusetyenziswa i-laser interferometer
● Uvavanyo lokuqina kwebhondi (uvavanyo lokutsala okanye lokucheba kwiisampuli zamangqina)
● Ukuhlolwa ngokubonakalayo ukuze kubonwe imingxunya okanye iindawo ezingenanto kumaleko weseramikhi
Iingenelo ngaphezu kweeRings ze-All-Ceramic okanye ze-All-Metal:
● Umphezulu weseramikhi uhlala ixesha elide kangange-5–10× kunentsimbi eqinileyo
● Isiseko sesinyithi senza kube lula ukuqhekeka - akukho mngcipheko wokuqhekeka okuqhekekayo ngexesha lokufakwa
● Ukuxhoma okulula (imingxunya enemisonto, iiphini zedowel) ngqo koomatshini abakhoyo
● Ixabiso eliphantsi kuneringi epheleleyo yeseramikhi yobubanzi obukhulu
● Isiseko sesinyithi singenziwa ukuze sincamathisele i-magnetic chuck
Imida (iingxelo ezigxekayo):
● Idatha yesiseko sesinyithi (ukwandiswa kobushushu, ukuqina) ayiveli kwiitafile zeseramikhi ezibonelelweyo - bhekisa kwiimpawu zesinyithi eziqhelekileyo.
● Ubushushu obuphezulu bokusebenza obuqhubekayo obunqunyelwe yi-epoxy bond (≤200°C kwi-epoxy eqhelekileyo; ukubamba ngoomatshini kuvumela ukuya kuthi ga kwi-500°C kodwa kunciphisa ukutywinwa).
● Ayifanelekanga kwiindawo ezinoburhalarhume zeekhemikhali ezihlasela isiseko sesinyithi (umz., ii-asidi ezinamandla). Ukuze ufumane ukumelana okupheleleyo kweekhemikhali, chaza indandatho ye-ceramic epheleleyo.
Ukwenziwa ngokwezifiso:
● Izinto zesinyithi: i-aluminium (elula), intsimbi engatyiwayo (emelana nokugqwala), okanye i-Invar (ukwandiswa okuphantsi kobushushu)
● Indlela yokubopha: i-epoxy (≤200°C), i-mechanical clamp (≤500°C), okanye i-brazed ceramic-to-metal (≤800°C, ixabiso eliphezulu)
● Iimpawu zokufakela: imingxunya enemisonto, imingxunya yepini yedowel, iindawo zokufaka, okanye i-magnetic backing
● Ubukhulu beleyara yeseramikhi: 3–20 mm
Nxibelelana nathi ukuze ufumane uphononongo loyilo kunye nokukhetha indibaniselwano yesinyithi-yeseramikhi efanelekileyo yokusetyenziswa kwakho kokugaya.
