Mhete dzeRubber O-, sezvinhu zvinonyanya kushandiswa zvekuvharisa mundima yeindasitiri, mashandisiro adzo anokanganisa zvakananga kuvimbika, kushanda zvakanaka uye hupenyu hwesevhisi yemidziyo. Kubva pamaonero ekushandiswa kweinjiniya, chinyorwa ichi chinoronga nzira dzesarudzo dzesainzi, nzira dzekuisa dzakamira, mapoinzi ekugadzirisa nguva dzose uye nzira dzekudzivirira kukundikana kwerabha O{2}}ringi. Yakasanganiswa nemidziyo yemidziyo uye misimboti yekushandura mamiriro ekushanda, inopa nyanzvi dzeinjiniya nevarapi vane hukama negwaro rekushandisa redzidzo uye rinoshanda, zvichibatsira kudzikisira njodzi yekutadza kuvhara.
I. Sarudzo yesainzi: Kunyatsoenderana kunoenderana nemamiriro ekushanda uye zvinhu zvemukati
Mhedzisiro yekusarudza O-ringi dzerabha ndedzekuwana matatu-inokwana mativi matatu e "material performance - yekushanda mamiriro - structural parameters" kudzivirira kutadza kuvharika nekuda kwekukanganisa kusarudza.
1. Mamiriro ekushanda maitiro anotonga sarudzo yekusarudza
Tembiricha inogadziriswa: Sarudza zvinhu zvinoenderana nemhando yekushisa yenzvimbo yekushanda. Pakudzika-mamiriro ekushisa (-60 madhigirii kusvika -20 madhigirii ), silicone rabha (VMQ) kana fluorosilicone rabha inodiwa. Pamamiriro ekunze ekupisa (150℃kusvika 260 degree), fluororubber (FKM) inosarudzwa. Kune akajairika-tembiricha mamiriro (-20 dhigirii kusvika 100 dhigirii), nitrile rubber (NBR) kana chloroprene rubber (CR) inogona kushandiswa.
Kufambirana nepakati: Kana wasangana neasiri-polar media senge mineral oil nehydraulic oil, nitrile rubber (NBR) inodiwa, sezvo huwandu hwayo hwekuzvimba hunogona kudzorwa mukati me10%. Paunenge uchisangana nehutu hunoodza senge yakasimba acids, alkali yakasimba uye yakasimba oxidants, fluororubber (FKM) inofanira kusarudzwa. Muminda yezvekudya uye kurapwa, silicone rabha (VMQ) inosangana neUSP Kirasi VI chiyero inofanira kusarudzwa kuti ive nechokwadi chekuenderana.
Pressure adaptation: For low-pressure conditions (≤10MPa), conventional O-rings can be selected. For medium and high-pressure conditions (10MPa to 30MPa), retaining rings should be used in combination. For ultra-high-pressure conditions (>30MPa), yakasimbiswa chimiro O-mhete dzinofanirwa kusarudzwa kudzivirira kukuvara kweextrusion.
2. Kusarudzwa kwakarongeka kwemaitiro ekugadzirisa
Muchinjika-chikamu chedhayamita uye kudzvanya reshiyo: Muchinjikwa-chikamu dhayamita cheO-mhete chinofanirwa kutariswa zvichienderana nekukura kwegiko rekuvharisa, uye kudzvanya reshiyo kunofanirwa kudzorwa mukati mechikamu chinonzwisisika che15% kusvika 30%. Chiyero chekumanikidza icho chakanyanya kuderera chinogona kutungamira kune kuvhara mapeji, nepo iyo yakanyanya kukwirisa inomhanyisa kuneta kukwegura kwezvinhu uye kupfupisa hupenyu hwavo hwesevhisi.
Dimensional tolerance: Sarudza O-maring'i anoenderana neGB/T 3452.1 kana ISO 3601 mwero, uchive nechokwadi chekuti mukati mepakati uye kuchinjika-sectional diameter tolerances zviri mukati mechikamu chinotenderwa kudzivirira kukanganisa kuvharika nekuda kwekutsauka kwedimensional.
Ii. Yakamisikidzwa Kuisirwa: Dzivisa kukuvadzwa kwevanhu uye kukanganisa kwekuvhara
Kumisikidzwa kwechishandiso chekuisa kunotara zvakananga mamiriro ekutanga ekuvharirwa kwerabha O-ring. Zvinodikanwa kunyatsotevera nhanho ina-yekuchenesa - kufita - kuisa - kuongorora".
1. Kugadzirira kusati kwaiswa
Kuchenesa: Nyatsochenesa migero yakavharika, nzvimbo yakavharika uye pamusoro peO-mhete kuti ubvise mavara emafuta, mafirita esimbi, huruva nehumwe hutsvina kudzivirira tsvina kuti isapinda panzvimbo yakavharika uye kukonzera makwara.
Kuzora pamusoro: Zvinoenderana nekuenderana kwepakati, sarudza mafuta ekuzora akakodzera (sesilicon{{0}based grease, fluorine{{1}based grease), woisa zvakaenzana pamusoro peO-ring uye mukati mejiko rekuvharisa kuderedza kukweshana panguva yekuisa uye kudzivirira kutsemuka kwerabha.
Kugadzirira kwezvishandiso: Shandisa maturusi ekuisa akazvipira (akadai semapurasitiki, magadhi maoko), uye dzivirira kudhumhana nesimbi dzakapinza dzine maO-ring kudzivirira kukwenya kana kuboora pamusoro perabha.
2. Gadzirisa mabasa ekuisa
Paunenge uchiisa, dzivirira kutambanudza zvakanyanya kweO-ringi (kutambanudza mwero Zvishoma pane kana kuenzana ne5%) kudzivirira kukuvadzwa kwemamolecular chimiro chechinhu. Pazvisimbiso zvakagara zvagadzirwa, zvinofanirwa kuve nechokwadi kuti maO-maringi akanyatsoiswa mumigero pasina kukanganisa kana kumisa.
Pakudzokorodzana kwezviitiko zvekuvharisa, zvinofanirwa kuve nechokwadi kuti kukwana kwepakati pakati peO-ringi nezvikamu zvinofamba zvine musoro kudzivirira kufamba kwakanyanyisa nekuda kwekugezesa kwakakurisa kana kukweshana kwakanyanyisa nekuda kwekujekesa kudiki.
3. Kuongorora mushure mekuiswa
Tarisa uone kana O-ring yakanyatsokwana mugero, isina kuunyana kana kukuvara. Simbisa iyo yekuisa chisimbiso kuburikidza nemhepo tightness bvunzo kana kumanikidza bvunzo kuona kuti hapana kuvuza.
Iii. Kugara Kwekuchengetedza: Chiyero chakakosha chekuwedzera Hupenyu hweSevhisi
Mhedziso yekuchengeta rubber O-rings iri mukutarisa nguva dzose uye kupindira panguva yekunonoka kuchembera kwezvinhu uye kudzivirira kudzikira kwekuita chisimbiso.
Kugaro tarisa nekuchengetedza-rekodhi
Gadzirai bhuku rekugadzirisa uye gara uchiongorora chimiro cheO{0}}mhete, kusanganisira kana paine zviitiko zvakaita sekutsemuka, kuoma, kuzvimba, kana kushanduka. Pamidziyo yakakosha, bvunzo yekuisa chisimbiso (yakadai seyekumanikidza kubata bvunzo uye kuona kuvuza) inofanirwa kuitwa yega yega 3 kusvika 6 mwedzi.
Rekodha shanduko yemamiriro ekushanda (zvakadai sekuchinja kwetembiricha, gadziriso yepakati, uye kukwira kwepresha), ongorora nekukurumidza kushanda kweO-ringi, uye kufanofanotaura zvinodiwa pakugadzirisa.
2. Matanho ekugadzirisa anotarirwa
Kune O-maring'i anogara akatarisana ne-tembiricha nepamusoro-zvinodzvinyirira, pfupisa nguva yekuzvigadzirisa uye wozvitsiva kubva pamwedzi 12 kusvika ku24 yega yega kudzivirira kusasimba kunokonzerwa nekuchembera.
Kana nzvimbo yekushanda iine zvinhu zvekukwegura zvakadai se ozone uye ultraviolet rays, matanho ekudzivirira anofanira kutorwa kune zvikamu zvakavharwa (zvakadai sekuisa maoko ekudzivirira), kana zvinhu zvine hutano hwakanaka hwe ozone, zvakadai se chloroprene rubber (CR) uye fluororubber (FKM), inofanira kusarudzwa.
Rega kuchengeta maO-ringin munzvimbo dzakadzvanywa kwenguva yakareba. Paunenge uchichengeta, zviise sandara munzvimbo inotonhorera uye yakaoma, kure nezvinopisa, mavara emafuta uye zvinhu zvinopisa kudzivirira kuchembera nguva isati yakwana.
Iv. Kutadza Kudzora: Zvakajairwa Kutadza Modes uye Solutions
Kutadza kushanda kwerabha O-rings kunowanzoenderana nezvinhu zvakaita sekuchembera kwezvinhu, kusamira zvakanaka kwemamiriro ekushanda, uye kukanganisa kuiswa. Matanho akatarirwa ekudzivirira nekudzora anofanira kutorwa.
Common kukundikana modes uye zvikonzero
Kudzvanya seti: Yenguva refu-tembiricha yepamusoro kana kuti yakanyanya kudzvanyirirwa reshiyo inotungamira mukuparara kwemuchinjikwa-unobatanidza chimiro cherubha cheni dzemamolecular cheni uye kurasikirwa kwekusimba kwekusunga, izvo zvinowanzoitika mukushandiswa kwenguva refu-kwenguva refu ye nitrile rabha (NBR) pasi pe-kupisa kwakanyanya.
Kuzvimba kwekemikari nekutsemuka: Kusapindirana pakati pechinhu nepakati kunoita kuti vhoriyamu iwedzere kuwedzera kweO-ring uye brittleness uye kuputika. Izvi zvinowanzoitika kana nitrile rabha ikasangana ne polar solvents kana fluororubber inosangana neakasimba oxidants.
Kukuvadzwa kweMechanical: Kukwenya panguva yekuisa, kutatamuka zvakanyanya, kana kukuvadzwa kwekunze uye kupera kwe friction pasi pemamiriro ekushanda, anoratidzwa sepakatsemuka, notchi kana ukobvu husina kuenzana pamusoro peO{0}}ring.
Kuchembera kwekushisa uye kuchembera kweozone: Nzvimbo dzetembiricha dzakakwirira-dzinokonzeresa oxidation uye kushatiswa kwemamorekuru erabha, anoratidzwa sekuoma nekutsemuka. Munzvimbo yeozone,-zvisingarambiki neozone{3}}zvinoita kutsemuka kwepamusoro, kunyanya mumamiriro ekusunga.
2. Kudzivirira kwakananga uye kutonga uye mhinduro
Pakumisikidzwa kwechigarire: Gadzirisa dhizaini yedhizaini kudzivirira kupfuura-kumanikidzana; Sarudza zvinhu zvinoramba kuchembera zvakanaka, sekuzvitsiva nefluororubber (FKM) pasi pe-tembiricha yekushanda.
Pakuzvimba kwemakemikari nekutsemuka: Ongorora zvakare-kuenderana kwepakati uye zvinhu, uye chinja zvinhu zvakakodzera, sekuchinja nitrile rabha (NBR) nefluororubber (FKM) kuti ienderane nezvinoodza media.
Kukuvadzwa kwemichina: Misa kuisirwa nekushanda, uye shandisa maturusi akazvitsaurira; Isa maring'i ekuchengeta-mamiriro ekushanda ari pakati nepakati. Gadzirisa kushata kwechisimbiso chepamusoro uye kuderedza coefficient of friction.
Kutadza kuchembera: Dzora tembiricha yenzvimbo yekushanda kuti udzivise kudarika huwandu hwekushivirira kwezvinhu; Pamamiriro ezvinhu ari panjodzi yeozone, chloroprene rabha (CR) kana zvinhu zverabha zvine ozone yakawedzerwa-zvinodzivirira zvinofanirwa kusarudzwa.
