Zina za Excavator O-RING Seal Kit

O-ring (O-rings)ndi mphete yosindikiza mphira yokhala ndi gawo lozungulira.Chifukwa cha gawo lake la mtanda la O, limatchedwa O-ring, lomwe limatchedwanso O-ring.Zinayamba kuonekera m'zaka za m'ma 1800, pamene zinkagwiritsidwa ntchito ngati chinthu chosindikizira pamasilinda a injini ya nthunzi.

O-mpheteamagwiritsidwa ntchito makamaka kusindikiza static ndi kubwereza kusindikiza kusindikiza.Akagwiritsidwa ntchito posindikiza ma rotary motion, amangogwiritsa ntchito makina osindikizira othamanga kwambiri.O-ring nthawi zambiri imayikidwa mu poyambira yokhala ndi gawo lozungulira pamakona akunja kapena bwalo lamkati kuti ligwire ntchito yosindikiza.Zisindikizo za O-ring zimagwirabe ntchito bwino kusindikiza ndi kuyamwa modzidzimutsa m'malo monga kukana mafuta, asidi ndi alkali, abrasion, ndi kukokoloka kwa mankhwala.

Zofunika za O-ring:O-ring ili ndi ntchito yabwino yosindikiza komanso moyo wautali wogwira ntchito.Moyo wogwira ntchito wa chisindikizo champhamvu ndi nthawi 5-10 kuposa wazinthu wamba zosindikiza mphira, mpaka kangapo.Pazifukwa zina, imatha kukhala ndi moyo wofanana ndi matrix osindikizira..Kulimbana kwamphamvu kwa mphete ya O ndi yaying'ono, ndipo mikangano yosunthika ndi yokhazikika ndi yofanana, yomwe ndi 1/2-1/4 ya mikangano ya mphete ya mphira "0", yomwe imatha kuthetsa "kukwawa" chodabwitsa. kuyenda motsika komanso kutsika kwapakatikati.O-ring ndi yosamva kuvala, ndipo imakhala ndi ntchito yolipiritsa yodziwikiratu pambuyo pa kusindikiza pamwamba.O-mphete ali ndi zinthu zabwino zodzipangira okha mafuta.Itha kugwiritsidwa ntchito ngati chisindikizo chopanda mafuta.O-ring ili ndi dongosolo losavuta komanso losavuta kukhazikitsa.Kuthamanga kwa O-ring ntchito: 0-300MPa;liwiro ntchito: ≤15m/s;ntchito kutentha: -55-250 madigiri.O-ring ntchito sing'anga: hydraulic mafuta, gasi, madzi, matope, mafuta osakhwima, emulsion, madzi-glycol, asidi.

Ubwino wa O-rings:Poyerekeza ndi mitundu ina ya mphete zosindikizira, mphete za O zili ndi ubwino wotsatirawu: Zoyenera kusindikiza mitundu yosiyanasiyana: kusindikiza static, kusindikiza kwamphamvu, koyenera kwa zipangizo zosiyanasiyana, kukula kwake ndi grooves zakhala zokhazikika, zosinthika Zamphamvu, zoyenera kumayendedwe osiyanasiyana. : kusuntha kozungulira, kusuntha kwa axial kapena kusuntha kophatikizana (monga kusuntha kozungulira kozungulira), koyenera pamitundu yosiyanasiyana yosindikizira: mafuta, madzi, gasi, makina osindikizira kapena makina ena osakanikirana, posankha zida Zotsogola za rabara ndi zoyenera. kapangidwe ka formula kumatha kukwaniritsa kusindikiza kogwira mtima pamafuta, madzi, mpweya, gasi ndi media zosiyanasiyana zama mankhwala.Kutentha kumasiyanasiyana (- 60 ℃ ~ + 220 ℃), ndipo kuthamanga kumatha kufika 1500Kg / cm2 mu ntchito yokhazikika (yogwiritsidwa ntchito pamodzi ndi mphete yolimbikitsa).Mapangidwe ake ndi osavuta, kapangidwe kake ndi kophatikizana, ndipo msonkhano ndi disassembly ndizosavuta.Mapangidwe amtundu wa O-ring ndi ophweka kwambiri, ndipo ali ndi ntchito yodzisindikiza yokha, ndipo ntchito yosindikiza ndi yodalirika.Popeza mapangidwe a O-ring palokha ndi gawo loyikapo ndi losavuta komanso lokhazikika, ndizosavuta kukhazikitsa ndikusintha.Pali mitundu yambiri yazinthu: mutha kusankha molingana ndi madzi osiyanasiyana: pali mphira wa nitrile (NBR), rabala ya fluorine (FKM), rabala ya silikoni (VMQ), mphira wa ethylene propylene (EPDM), rabala ya neoprene (CR), rabala ya butyl. (BU), polytetrafluoroethylene (PTFE), mphira wachilengedwe (NR), ndi zina zambiri, zotsika mtengo komanso kukana kwamphamvu pang'ono.

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