Qhov tseem ceeb ntawm kev kho hniav handpiece seals
Hniav handpieces yog ib qho ntawm cov cuab yeej siv feem ntau hauv cov chaw kho hniav. Lawv yog siv rau drilling, polishing, txiav thiab tshem tawm caries ntawm cov hniav. Cov khoom siv kho hniav yog tus kws kho hniav sab xis, tab sis nws kuj yog ib qho ntawm cov cuab yeej nyuaj tshaj plaws hauv chaw kho hniav.
Ib qho tseem ceeb ntawm cov khoom siv kho hniav yog lub foob, tshwj xeeb yog lub foob siv los tuav lub turbine nyob rau hauv qhov chaw. Lub turbines yog lub luag haujlwm rau kev tsim cov kev kub ceev uas lub xov tooj xav tau kom khiav tau zoo. Ntawm qhov tod tes, cov ntsaws ruaj ruaj ua kom muaj kev ua haujlwm zoo ntawm lub turbine.
Cov ntaub ntawv ntawm kev kho hniav handpiece seals
Cov ntsaws ruaj ruaj hauv cov khoom siv kho hniav feem ntau yog ua los ntawm roj hmab lossis hluavtaws polymers thiab zaum ntawm lub taub hau ntawm tes. Nws lub luag haujlwm tseem ceeb yog tiv thaiv dej, qaub ncaug thiab lwm yam khib nyiab los ntawm kev nkag mus rau hauv xov tooj thiab cuam tshuam rau nws txoj haujlwm.
Txawm li cas los xij, lub foob kuj tseem pab txo qis kev sib txhuam ntawm lub turbine thiab lub taub hau ntawm tes. Qhov no tsis tsuas yog txo qis hnav ntawm lub turbine, tab sis kuj txo cov cua sov uas tsim los ntawm kev sib txhuam.
Yog tias tsis muaj kev sib khi kom zoo, lub handpiece lub turbine tuaj yeem raug puas los yog puas tsuaj, uas ua rau cov nqi kho kom zoo thiab txo kev ua haujlwm. Yog li ntawd, nws yog ib qho tseem ceeb heev kom tsis tu ncua xyuas thiab hloov cov ntsaws ruaj ruaj nyob rau hauv cov hniav handpieces.
Hauv cov ntsiab lus, lub foob nyob rau hauv ib qho kev kho hniav tes yuav zoo li ib feem me me, tab sis nws plays lub luag haujlwm tseem ceeb hauv kev ua kom cov handpiece ua haujlwm zoo thiab ua tau zoo. Kev saib xyuas tsis tu ncua ntawm cov ntsaws ruaj ruaj, suav nrog kev tshuaj xyuas thiab hloov pauv thaum tsim nyog, yuav pab txuas lub neej ntawm koj lub xov tooj thiab txo cov nqi kho.
Cim npe nrov: Tuam Tshoj Hniav Hniav Hniav Hniav Hniav Seals Manufacturers, lwm tus neeg, Hoobkas
| Lub cev muaj zog | Rated tus nqi | Unit system | Kev sim |
| kev faib ua feem | 1.81 | g/cm³ | ASTM D 792 Cov Lus Qhia Tshwj Xeeb |
| Hardness | Rated tus nqi | Unit system | Kev sim |
| Ntug Hardness (Shore A) | 90 | ASTM D 2240 Cov Lus Qhia | |
| Elastomer | Rated tus nqi | Unit system | Kev sim |
| Tensile stress (100% strain) | 13.4 | MPa | ASTM D412 |
| Tensile zog (tawg) | 14.1 | MPa | ASTM D412 |
| Elongation (tawg) | 110 | % | ASTM D412 |
| Compression Teeb 1 | ASTM D 395 Cov Lus Qhia | ||
| 23 degree, 70 teev | 19 | % | ASTM D 395 Cov Lus Qhia |
| 175 degree, 70 teev | 33 | % | ASTM D 395 Cov Lus Qhia |
| 175 degree, 166 teev | nees nkaum ob | % | ASTM D 395 Cov Lus Qhia |
| 200 degree, 22 teev | 18 | % | ASTM D 395 Cov Lus Qhia |
| Kev laus | Rated tus nqi | Unit system | Kev sim |
| Rate of Change of Tensile Strength in Air (175 degree, 70 teev) | -33 | % | ASTM D 573 3 |
| Rate of Change of Ultimate Elongation in Air (276 degree, 70 teev) | 9 | % | ASTM D 573 3 |
| Rate of Change of Durometer Hardness nyob rau hauv Cua (276 degree, 70 hr) | 3 | ASTM D 573 3 |
