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Ndi malingaliro otani posankha O-ring?

Pogwiritsa ntchito ma O-rings, mikhalidwe yeniyeni yogwirira ntchito ndi mikhalidwe yogwiritsira ntchito iyenera kuganiziridwa.Kutentha ndi kupanikizika kudzakhala ndi zotsatira ndi zotayika pa chisindikizo cha O-ring.Chifukwa chake, mfundo 5 zotsatirazi ziyenera kuganiziridwa mukamagwiritsa ntchito zisindikizo za rabara za O-ring:

1. Sing'anga yogwirira ntchito ndi malo ogwirira ntchito;

2. Kugwirizana kwa mankhwala ndi sing'anga yogwirira ntchito, ndiyeno ganizirani za kupanikizika, kutentha, nthawi yogwira ntchito mosalekeza, kayendetsedwe ka ntchito ndi zina pa chisindikizo, ndi kukwera kwa kutentha komwe kumabwera chifukwa cha kutentha kwamphamvu kumafunikanso kuganiziridwa pazochitika zozungulira;

3. Fomu yosindikizira: Pamene chisindikizo cha shaft chimayikidwa mozungulira, kupatukana pakati pa mkati mwa mphete ya O-ring ndi m'mimba mwake yomwe iyenera kusindikizidwa iyenera kukhala yaying'ono momwe zingathere;kwa chisindikizo cha dzenje, m'mimba mwake wamkati uyenera kukhala wofanana kapena wocheperako pang'ono kuposa m'mimba mwake.Mukayika axially, njira yokakamiza iyeneranso kuganiziridwa.Pamene kupanikizika kwa mkati kumagwiritsidwa ntchito, kunja kwa mphete ya O-ring ayenera kukhala pafupifupi 1% ~ 2% kuposa kukula kwakunja kwa poyambira.Pamene m'mimba mwake muli pansi, mkati mwa mphete ya O iyenera kukhala yaying'ono kuposa groove1% ~ 3%.

4. Zinthu zina zomwe zimakhudza ntchito yosindikiza

1) Kuuma: Dziwani kuchuluka kwa kuponderezana kwa mphete ya O ndi kusiyana kwakukulu kovomerezeka kwa poyambira;

2) kusiyana Extrusion: dongosolo kuthamanga, O-mphete gawo m'mimba mwake ndi kuuma zinthu zikugwirizana.

3) Kuponderezedwa kwamuyaya: Pankhani ya kukakamizidwa, kuti muteteze kusinthika kwa pulasitiki kosatha.Kuponderezedwa kwakukulu komwe kumaloledwa ndi O-ring ndi pafupifupi 30% mu zisindikizo zosasunthika komanso pafupifupi 20% mu zisindikizo zamphamvu.

4) Kuchulukitsa kwapang'onopang'ono: Kuti mutsimikizire kulimba kwa groove ya O-ring, kuchuluka koyambira koyambira kuyenera kusungidwa.Kuchulukana kwapang'onopang'ono kokhudzana ndi gawo lagawo nthawi zambiri kumakhala pafupifupi 15% ~ 30% pachisindikizo chokhazikika.Ndi pafupifupi 9% ~ 25% mu chisindikizo champhamvu.

5) Kupanikizika ndi kuponderezana: Kwa chisindikizo cha dzenje, mphete ya O ili pamtunda, ndipo kutambasula kwakukulu kovomerezeka ndi 6%.Pachisindikizo cha shaft, mphete ya O imakanizidwa motsatira njira yozungulira, ndipo kuponderezedwa kwakukulu kovomerezeka ndi 3%.

5. O-ring imagwiritsidwa ntchito poyenda mothamanga kwambiri komanso chosindikizira cha shaft chozungulira chokhala ndi kachitidwe kakang'ono ka ntchito.Pamene kuthamanga kwapang'onopang'ono kuli kochepa kuposa 0.5m / s, kusankha kwa O-ring kungathe kukhazikitsidwa pamiyezo yodziwika bwino;pamene liwiro la zotumphukira ndi lalikulu kuposa 0.5m/s, M'pofunika kuganizira chodabwitsa kuti mphete mphira elongated imachepa pambuyo kutenthedwa, ndipo mphete kusindikiza ayenera kusankhidwa kuti awiri m'mimba mwake ndi pafupifupi 2% lalikulu kuposa awiri a tsinde losindikizidwa.

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Nthawi yotumiza: Aug-26-2022