Lesale la Tiiso la Alumina Ceramic le Hloekileng ka ho Fetisisa bakeng sa ho Tiisoa ha Kamore ea Mocheso o Phahameng
Lesale la tiiso la St.Cera la ceramic le entsoe e le mokhoa o mong oa ho sebelisa masale a polymer O libakeng tse feteletseng moo li-elastomer li senyehang. Le entsoe ka alumina ea 99.8% e hloekileng haholo (Al₂O₃), lesale lena la tiiso le tiileng le sebelisoa lits'ebetsong tsa ho tiisa tse sa fetoheng - hangata le kopantsoe le gasket ea tšepe e bonolo kapa ea graphite - ho fana ka tšireletso e tšepahalang ea vacuum kapa khase mochesong o fihlang ho 800°C le libakeng tse mabifi tsa plasma kapa tsa lik'hemik'hale. Thepa ena ha e na khase e tsoang, matla a phahameng a khatello (matla a tlase a ho flexural 361 MPa), le ho se sebetse hantle ha lik'hemik'hale (ho hanela li-halogen, li-acid le li-alkali ntle le HF). Libaka tsa ho tiisa tse nang le mahlakore a nepahetseng (bophara ≤5 μm, bohlasoa ba bokaholimo Ra ≤0.2 μm) li netefatsa hore ho kopana ha tšepe kapa likarolo tsa ceramic hoa dutla.
Litlhaloso(ho ipapisitsoe le 99.8% Al₂O₃):
| Thepa | Boleng |
| Thepa | 99.8% Alumina (Lenaka la tlou) |
| Botenya | 3.93 g/cm³ |
| Ho Monya Metsi | 0% |
| Matla a ho Tenyetseha | 361 MPa |
| Matla a Khatello (e hakantsoeng) | >2000 MPa |
| Boima ba Vickers | 16 GPa |
| Katoloso ea Thermal (25–1000°C) | 7.2×10⁻⁶/℃ |
| Mocheso o Moholo oa ho Sebetsa | 800°C (moea), 1600°C (e sa sebetseng hantle) |
| Qetello ea Bokaholimo (sefahleho se koalang) | Ra ≤0.2 μm (e kobehileng) |
| Bophara (ka 25 mm) | ≤5 μm |
| Sekhahla sa ho Dutla ha Helium | <1×10⁻¹⁰ Pa·m³/s (ka gasket e loketseng) |
Likopo:
- · Litiiso tse sa fetoheng tsa kamore ea ts'ebetso ea semiconductor (CVD, PVD, etch)
- · Litiiso tsa mamati a sebōpi sa mocheso o phahameng
- · Li-flange tse fepelang ka vacuum
- · Ho koaloa ha likepe tsa lik'hemik'hale
Mokhoa oa Tlhahiso:
Ho tobetsa ka tsela e sa fetoheng → ho tjhesa ka mocheso wa 1600°C → ho thiba ka mahlakore a mabedi ka nepo ho fihlella difahleho tse bataletseng haholo, tse boreledi tsa ho kwala → ho thiba ka mathoko → ho hlwekisa ka ultrasound. Lesale le leng le le leng le lekoa ka 100% ho detector ya ho dutla ha helium e nang le gasket ya tshepe e tloaelehileng.
Taolo ea Boleng:
- · Tlhahlobo ea boholo ba CMM (ID, OD, botenya, ho tšoana)
- · Profilometer ea bokaholimo bakeng sa Ra le waviness
- · Tekanyo ea ho batalla ho sebelisoa optical flat
- · Teko ea ho lutla ha Helium (mokhoa oa ho hatella mokokotlo)
Melemo ho feta mehele ea Polymer O:
- · E mamella 800°C vs. <300°C bakeng sa FFKM
- · Ha ho na khase e tsoang — ha ho na tšilafalo ea tikoloho e se nang letho
- · E hanela lik'hemik'hale tsohle tsa plasma (fluorine, chlorine, oksijene)
- · Ha ho sete ea khatello kapa phetoho ea kamehla
- · Bophelo bo sa lekanyetsoang ba tšebeletso libakeng tse hloekileng
Meeli (Litlhaloso tsa Bohlokoa):
- · Hase lesale la O— ke lesale le tiileng la letsopa le hlokang gasket e bonolo (koporo, aluminium, kapa graphite) ho tiisa.
- · Ha e amohele motsamao o feto-fetohang kapa ho se tsamaisane hantle ha flange e kgolo.
- · Litšenyehelo tsa pele tse phahameng ho feta masale a polymer, empa nako e telele ea bophelo e fokotsa litšenyehelo tsa beng.
- · E robeha — tshwara ka hloko; qoba ho thulana ha ntlha kapa kgatello ya maikutlo.
Hlokomela:Lintlha tse kaholimo li latela ka tieo tafole ea thepa ea Al₂O₃ e fanoeng. Ha ho na lintlha tsa thepa ea elastomeric tse fanoeng. Sehlahisoa sena ke lesale la tiiso le sa fetoheng, eseng lesale la O-elastomeric. Ka kopo netefatsa hore na sena se fihlela litlhoko tsa kopo ea hau.
