Mhete yeAlumina Ceramic Inosungirirwa neSimbi Yekushandisa Zvishandiso Zvakasimba zveKurovera
St.Cera'smhete yesimbi yakavakirwa paarumina yekukuyaInobatanidza alumina (99.8% Al₂O₃) ceramic wear layer ine simende yakagadzirwa nemazvo (kazhinji aruminiyamu kana simbi isina ngura). Dhizaini iyi yehybrid inopa simba rekusakara uye kusagadzikana kwemakemikari kweceramic pamusoro pekukuya, nepo simbi inowedzera simba remuchina, nyore kuisa, uye kuramba kuputsika. Alumina layer inopa simba rekuchinjika re361 MPa, kuomarara kweVickers kwe16 GPa, uye kugadzikana kwekupisa kusvika ku800°C. Metal base yakagadzirirwa maburi ekukwirisa, mapini ekutsvaga, kana magnetic properties kuti ibatanidzwe mu lapping machines, planetary grinders, uye CMP equipment.
Magadzirirwo(Rutivi rweAlumina rwakavakirwa pa99.8% Al₂O₃):
| Pfuma | Kukosha |
| Zvinhu | 99.8% Alumina (Nyanga dzenzou) |
| Kuwanda kwevanhu | 3.93 g/cm³ |
| Simba reKuchinjika | 361 MPa |
| Kuomarara kwaVickers | 16 GPa |
| Kusimba Kwekutyoka | 3–4 MPa·m¹/² |
| Kuwedzera kwekupisa (25-1000°C) | 7.2×10⁻⁶/℃ |
| Kupedzisa Pamusoro (kumeso kwekukuya) | Ra ≤0.4 μm (yakamonerwa) |
| Kufara | ≤5 μm kupfuura 100mm |
| Zvinhu Zvakajairika | Aruminiyamu 6061, Simbi Isina Chinovhara 304/316 |
| Nzira yekubatanidza | Epoxy ine tembiricha yepamusoro kana kuti mechanical clamping |
| Ukobvu | 5–20 mm (yakatarwa nemutengi) |
Cherechedza: Hunhu hwesimbi (density, Young's modulus, nezvimwewo) hahuwanikwe mumatafura ezvigadzirwa zveceramic anopiwa. Zvinotevedzera data rakajairika reindasitiri yearuminiyamu/simbi. Ndapota tsanangurai mhando yesimbi uye zvinodiwa pakuiisa.
Mashandisirwo:
● Mhete dzekukuya dzemuchina wepasi
● Mhete dzekutsigira dzeCMP (makemikari ekupukuta)
● Kunyatsorongedza zvisimbiso zveceramic kana zvesimbi
● Zvishandiso zvekuyedza kupfeka zvinokuvadza
Maitiro Ekugadzira:
1. Mhete yeAlumina ceramic inocheneswa kubva pa99.8% yeupfu uye yakakuyiwa zvakanaka kusvika paID/OD yekupedzisira uye yakatsetseka.
2. Hwaro hwesimbi hunogadzirwa neCNC hune maburi ekuisira, maburi ekumisikidza, kana nzira dzekiyi.
3. Mhete yeCeramic inosungirirwa pachigadziko chesimbi uchishandisa epoxy yakasimba (tembiricha yekushandira ≤200°C) kana kuti inosungirirwa nekanika (inobvumira tembiricha yakakwira, kusvika ku500°C kana uchishandisa simbi dzinoshandiswa).
4. Kupeta kwekupedzisira kwedenga resimbi kuti pave nehupamhi hwakaenzana uye hune kupenya kwakakodzera.
5. Kucheneswa kweUltrasonic uye kuongororwa kwe100% divi.
Kudzora Hunhu:
● Kuongororwa kweCMM kweID, OD, ukobvu, uye nzvimbo dzemaburi
● Kuyera kutsetseka uchishandisa laser interferometer
● Kuedza simba rebond (kuyedza kudhonza kana kutema shear pamuenzaniso weuchapupu)
● Kuongorora nemaziso kuti uone kana paine mitswe kana maburi ari muchikamu checeramic
Zvakanakira kupfuura Zvese-Ceramic kana Zvese-Metal Rings:
● Nzvimbo yesimbi inogarwa nesimbi inogara kwenguva yakareba kupfuura simbi yakaoma ne5–10×
● Hwaro hwesimbi hunoita kuti zvinhu zvishande zvakanaka - hapana njodzi yekutyoka kweganda panguva yekuisa.
● Kuisa zviri nyore (maburi ane shinda, mapini edhoo) zvakananga pamichina iripo
● Mutengo wakaderera pane mhete yakazara yeceramic yedhayamita hombe
● Nheyo yesimbi inogona kugadzirwa kuti ishandiswe nemagnetic chuck
Miganhu (mashoko ekutsoropodza):
● Ruzivo rwesimbi (kuwedzera kupisa, kuomarara) kwete kubva pamatafura eceramic anopiwa - tarisa hunhu hwesimbi hwakajairika.
● Tembiricha yepamusoro yekushanda inoganhurirwa ne epoxy bond (≤200°C ye epoxy yakajairwa; kusungirirwa kwemuchina kunobvumira kusvika ku500°C asi kunoderedza kuvhara).
● Hazvina kukodzera nzvimbo dzine makemikari anorwisa hwaro hwesimbi (semuenzaniso, maasidhi akasimba). Kuti uwane makemikari akasimba, taura nezve ring ye ceramic.
Kugadzirisa:
● Zvinhu zvesimbi: aruminiyamu (yakareruka), simbi isingatsvi (inodzivirira ngura), kana Invar (kuwedzera kupisa kwakaderera)
● Nzira yekubatanidza: epoxy (≤200°C), mechanical clamp (≤500°C), kana brazed ceramic-to-metal (≤800°C, mutengo wakakwira)
● Zvinhu zvekuisa: maburi ane shinda, maburi ane dowel pin, maburi anotsvedza, kana kuti magnetic backing
● Ukobvu hwechikamu checeramic: 3–20 mm
Tibatei kuti muwane ongororo yedhizaini uye kuti musarudze musanganiswa wakakodzera wesimbi neceramic wekushandisa pakugaya kwenyu.
