Kunyangwe zvingaite senge diki diki, vharafu yeO-ring material yakakosha. Nyaya yacho inogona kuona kushivirira kwekushisa kwechisimbiso. Inopawo chisimbiso kumwe kuramba kwemakemikari, uye mamwe marudzi erabha anowirirana nemvura dzakasiyana. Zvinhu zviviri zvakajairika zvechokwadi mubatanidzwa bhora mavharuvhu ndiViton uye EPDM.

Viton (inoratidzwa kurudyi) irabha yekugadzira ine makemikari akakwira uye inodzivirira tembiricha. EPDM inomirira Ethylene Propylene Diene Monomer uye ine seti yayo yezvivakwa zvinoita kuti ive yakakurumbira O-ring material. Kana tichienzanisa Viton neEPDM, zvinhu zvakati wandei zvinofanirwa kutariswa: kushivirira kwekushisa, kuenderana kwemakemikari, uye mutengo. Verenga kuti uwane kuenzanisa kwakazara.

EPDM rubber zvisimbiso
EPDM rubber (EPDM rubber) irabha yakaoma uye isingadhure ine zvakawanda zvekushandisa. Inowanzoshandiswa padenga rekudzivirira mvura nokuti EPDM inovhara zvakanaka. Izvo zvakare zvinhu zvakajairika kune zvisimbiso zvefiriza nekuti insulator uye ine yakanakisa yakadzika tembiricha kuramba. Kunyanya, EPDM inoshanda zvinobudirira mukupisa kwe -49F kusvika 293F (-45C kusvika 145C), zvichiita kuti ive yakakodzera kune zvikumbiro pane chero tembiricha.

Nepo marubha akawanda asingatenderi tembiricha, vashoma chete ndivo vanogona kubata tembiricha yakaderera seEPDM. Izvi zvinoita kuti ive sarudzo yekutanga kune chero munhu ari kuedza kuvhara munzvimbo dzinotonhora kana nezvinhu zvinotonhora. Chokwadi Union Bhora Mavharuvhu ane EPDM Yakavharwa O-Rings Manyorerwo akajairika eEPDM anosanganisira insulation yemagetsi, pool linings, pombi dzemvura, solar panel vaunganidzi, O-mhete, nezvimwe.

Pamusoro pekushivirira kukuru kwekushisa, EPDM ine yakakura makemikari kuramba. Izvi zvinosanganisira mvura inopisa, steam, detergents, caustic potash solutions, sodium hydroxide solutions, silicone oil/grease, nemamwe akawanda adiluted acids nemakemikari. Izvo hazvina kukodzera kushandiswa nemafuta emamineral zvigadzirwa semafuta ekuzora, mafuta kana mafuta. Kuti uone kuenderana kwemakemikari eEPDM, tinya pano. Izvi zvinokatyamadza zvivakwa, zvakasanganiswa nemutengo wakaderera, zvinoita kuti EPDM ive yakakurumbira yekuisa chisimbiso zvinhu.

Viton seals
Viton irabha yakagadzirwa uye fluoropolymer elastomer. "Fluoropolymer" zvinoreva kuti chinhu ichi chine kupikisa kwakanyanya kune zvinonyungudutsa, acids uye mabhesi. Izwi rekuti "elastomer" rinoshandurwa ne "rabha". Hatisi kuzokurukura mutsauko uripo pakati pe elastomer nerabha pano, asi isu tichakurukura chinoita kuti Viton ive yakakosha. Nyaya yacho inowanzo onekwa neruvara rwegirinhi kana bhurawuni, asi chinoitsaura ndeye density yayo. Density yeViton yakakwira zvakanyanya kupfuura marudzi mazhinji erabha, zvichiita kuti Viton isimbise imwe yakasimba kwazvo.

Viton ine yakafara tembiricha kushivirira kubva -4F kusvika 410F (-20C kusvika 210C). Iyo tembiricha yepamusoro iyo Viton inogona kumira nayo inoita kuti ive yakakodzera kune yakanyanya tembiricha yekushandisa. Viton inowanzoshandiswa muO-mhete, makemikari anodzivirira magirovhosi uye zvimwe zvakaumbwa kana extruded zvigadzirwa. O-mhete dzakagadzirwa kubva kuViton dzakanakira scuba diving, injini dzemotokari uye mavharuvhu akasiyana.

Kana zvasvika pakuramba kwemakemikari, Viton haina kufananidzwa. Inodzivisa kuonda kubva kune zvakasiyana-siyana zvemvura uye makemikari kupfuura chero isiri-fluorinated elastomer. Kusiyana neEPDM, Viton inowirirana nemafuta, mafuta, mafuta uye akawanda inorganic acids. Iyo zvakare inopokana zvakanyanya nekumanikidzana, mumhepo oxidation, chiedza chezuva, mamiriro ekunze, okisijeni mota mafuta, aromatics, fungi, mold, nezvimwe. Iyo zvakare inoshingirira pakuzvarwa nekupisa kupfuura mamwe akawanda marubha. Verenga zvakawanda pamusoro pekuita uye kusaita zveViton makemikari.

Dambudziko guru neViton ndiro mutengo wayo. Mukugadzira, inodhura zvakapetwa ka8 kugadzira huwandu hwezvinhu seEPDM. Paunenge uchitenga chigadzirwa chine zvishoma chete zvezvinhu zverabha izvi, mutengo unogona kusasiyana zvakanyanya. Asi kana uchiraira muhuwandu hukuru, unogona kutarisira kuti zvikamu zveViton zvive zvakanyanya kudhura kupfuura EPDM.

Viton uye EPDM zvisimbiso
Viton vs EPDM Kuisa Chisimbiso Rubber Chati

Saka ndechipi chinhu chakanakisa? Iyi mibvunzo haina kururama zvachose. Zvishandiso zvese zvine chaiwo maapplication kwazvakanakira, saka zvese zvinoenderana nebasa ravachange vachiita. YeduCPVC Bhora Tarisa mavharuvhuuyeCPVC Swing Tarisa Mavharuvhuanowanikwa neViton seals kana EPDM seals. Izvi zvisimbiso zvinogadzirwa neO-mhete dzakaiswa mumafittings. Mavharuvhu aya ese akagadzirwa kuti asunungurwe nyore nyore kuti agadziriswe nyore, saka ane miviri inobviswa.

Kana iwe uchida valve yegadziriro yemvura, pasinei nekupisa, valve ine EPDM chisimbiso inowanzova sarudzo yakanakisisa. Kunze kwekusiyana kwakasiyana tembiricha kushivirira, mutsauko mukuru pakati pezvinhu zviviri izvi ndiko kuramba kwemakemikari. Viton yakanakira kushandiswa nemafuta uye zvimwe zvinokuvadza, asi kana uchibata nechinhu chisina mhosva semvura, kusimba kwakanyanya uku hakuna basa.

Viton yakanaka kana iwe uchida kusimba kwakanyanya mumamiriro ekushushikana. sezvambotaurwa kare, Viton seals yakasimudzwa munenge chero mhando yekuora uye acidity. Nepo EPDM pachayo yakaoma kwazvo, haigone kuenderana neViton mukuramba kwemakemikari.

Muchikamu chino, tanga tichienzanisa zvinhu zviviri: Viton vs EPDM, ndezvipi zviri nani? Mhinduro ndeyokuti hapana "iri nani" pane imwe. Izvo zvose zvinhu zvepamusoro-soro zvine kushandiswa kusingagumi. Paunofanirwa kusarudza pakati pazvo, tarisa tembiricha yaucharatidzwa kwavari, makemikari auchange uchivaisa pachena, uye zvakanyanya kukosha, bhajeti yako. Ita shuwa kuti unowana vharuvhu yaunoda nemutengo usingakundike!