Munyika yakaomesesa yemachina uye mainjiniya masisitimu, kubva kune yakajairika pombi mukicheni kusvika kune yakaoma hydraulics ye spacecraft, chimwe chikamu chinoshanda chinyararire asi chakakosha kuve nechokwadi chekushanda kwekuvimbika: mhete yekuisa chisimbiso, kana O-ring. Ichi chakareruka, chinowanzoita donut-shaped loop ye elastomeric zvinhu ishasha yedhizaini inoshanda, yakagadzirirwa kuita akawanda emabasa akakosha akakosha kuchengetedzeka, kunyatsoita, uye kuita.
Papakati payo, basa rekutanga uye rakakosha remhete yekuisa chisimbiso kugadzira nekuchengetedza chisimbiso chakavimbika pakati penzvimbo mbiri kana kupfuura dzekubatana. Inoita sechidziviriro chemuviri mukati meganda rakavharirwa (gorofu payakagara), ichidzivirira nzira isingadikanwi yemvura kana magasi. Izvi zvinoshandura kuita zviito zviviri zvakakosha: kudzivirira kubuda kwemukati medhiya (semafuta, mafuta, inotonhorera, kana hydraulic fluid) kune yekunze nharaunda, uye kudzivirira kupinda kwekunze kwezvinosvibisa seguruva, tsvina, unyoro, kana zvimwe zvimedu zvekunze. Nekuisa midhiya, inoita kuti masisitimu ashande sekugadzirwa, kuchengetedza mvura yakakosha, kuchengetedza kudzvanywa, nekudzivirira kusvibiswa kwezvakatipoteredza kana njodzi dzekuchengetedza senge nzvimbo inotsvedza kana njodzi dzemoto. Nekusabatanidza zvinosvibisa, inodzivirira zvinhu zvemukati zvine hunyoro kubva pakupwanya, ngura, uye kupfeka nguva isati yakwana, nokudaro ichiwedzera zvakanyanya hupenyu hwegungano rese.
Kupfuura chisimbiso chakareruka, zvindori izvi zvakakosha pakumanikidza manejimendi. Mumashandisirwo ane simba apo zvinhu zvinofamba (senge muma hydraulic pistons kana mashefu anotenderera), mhete yakanyatsogadzirwa uye yakaiswa yekuisa chisimbiso inogadzirisa kudzvanya shanduko. Pasi pesimba rehurongwa, rinokanganisa zvishoma, richidzvanywa pamadziro egland nesimba guru. Iyi yekuzvipa simba inosimudzira kugona yekuisa chisimbiso zvakaenzanirana kune yakadzvanywa, ichigadzira chisimbiso chakasimba chaizvo kana ichinyanya kudiwa. Uku kugona kubata kwakasiyana siyana kwekumanikidza, kubva pavacuum mamiriro kusvika kune yakanyanya kudzvanywa, inovaita kuti vagone kuita zvakasiyana mumaindasitiri.
Chimwe chinhu chakakosha, kunyangwe chinowanzo furatirwa, basa rinogamuchira kusarongeka uye kudedera. Kugadzira kushivirira uye kushushikana kwekushanda kunoreva kuti nzvimbo dzekubatana hadzina kumbonyatso kurongeka uye dzinogona kufamba. Iyo elastomeric hunhu hwekuisa chisimbiso mhete inovabvumira kumanikidza, kutambanudza, uye kuchinjika, kuenderana nediki dimensional mutsauko, eccentricities, uye vibrational mafambiro pasina kukanganisa chisimbiso. Uku kuchinjika kunotsiva kusakwana kwaizotungamira kune nzira dzekuvuza muchisimbiso chakaomarara, kuve nechokwadi chekuita kwakafanana pasi penyika chaiyo, isina-yakanaka mamiriro.
Uyezve, zvindori zvekuisa chisimbiso zvinoita basa rakakosha mukuparadzanisa midhiya yakasiyana. Mumakina akaomarara, chinhu chimwe chete chinogona kupindirana pakati pemvura mbiri dzakasiyana dzisingafanire kusanganiswa. Mhete yekuisa chisimbiso yakarongeka inoita sechikamu, kuchengetedza, semuenzaniso, mafuta ekuzora akaparadzana neanotonhorera kana mafuta. Kupatsanura uku kwakakosha pakuchengetedza kemikari kuperera uye kushanda kwemvura yega yega, kudzivirira maitiro anogona kutungamira mukuumbwa kwedhaka, kurasikirwa kwekuzora, kana kutadza kwehurongwa.
Chekupedzisira, basa rerin'i yekuisa chisimbiso inobatanidzwa nemukati nekuumbwa kwayo kwezvinhu. Mainjiniya anosarudza chaiwo makomisheni-akadai seNitrile (NBR) yemafuta epetroleum-based, Fluorocarbon (FKM/Viton) yekupisa kwakanyanya uye makemikari ane hukasha, kana Silicone (VMQ) yekupisa kwakanyanya-kuita pasi pekunetsekana kwezvakatipoteredza. Nekudaro, basa remhete rinosvika pakushingirira tembiricha yakanyanyisa (zvese yakakwirira uye yakaderera), kuramba oxidation, ozone, uye UV mwaranzi, uye kuchengetedza elasticity uye chisimbiso simba pamusoro penguva refu pasina kushatisa.
Mukupfupisa, iyo yakazvininipisa yekuisa chisimbiso mhete ibwe repakona rakawanda rekugadzira michina. Haisi kungoita gasket asi chinhu chine simba chakagadzirirwa kunama, kudzivirira, kutonga kudzvanywa, kubhadhara mafambiro, midhiya yakaparadzana, uye kutsungirira hutsinye hwekushanda. Basa rayo rinovimbika rakavakirwa, kuve nechokwadi chekuti masisitimu kubva kumidziyo yemazuva ese kuenda kune yepamusoro maindasitiri uye aerospace application inoshanda zvakachengeteka, zvine hungwaru, uye nekuvimbika, zvichiita kuti ive gamba rechokwadi risingaimbidzwe munzvimbo yeinjiniya.
Nguva yekutumira: Zvita-02-2025