Kunzwisisa mutsauko uripo pakati peEPDM (ethylene propylene diene monomer) neNBR/PVC (nitrile butadiene rubber/polyvinyl chloride) kwakakosha pakusarudza zvinhu zvekushandisa kwakasiyana, kunyanya mumaindasitiri akaita semota, kuvaka, nekugadzira. Zvese zviri zviviri zvinopa zvivakwa zvakasarudzika zvinoita kuti zvikodzere kushandiswa kwakasiyana, uye kunzwisisa misiyano iyi kunogona kukubatsira kuita sarudzo dzine ruzivo.
Kuumbwa uye zvivakwa
Ethylene propylene diene monomer (EPDM) irabha yekugadzira inozivikanwa nekuramba kwayo kupisa, ozone, uye mamiriro ekunze. Kuumbwa kwayo kwe ethylene, propylene, uye diene kunopa iyo yakasarudzika zvivakwa. EPDM yakanakisa elasticity uye kugona kushingirira tembiricha yakanyanyisa inoita kuti ive sarudzo yakanaka yekunze kwekushandisa. Iyo zvakare UV- uye inodzivirira kuchembera, ichiita sarudzo yakakurumbira yematenga ematenga, zvisimbiso, uye gaskets.
Kune rimwe divi, NBR (nitrile butadiene rubber) irabha rekugadzira rinoumbwa zvakanyanya neacrylonitrile uye butadiene. Musanganiswa uyu unopa NBR yakanakisa mafuta uye kuramba mafuta, zvichiita kuti ive chinhu chakasarudzika chemafuta hose, zvisimbiso, uye magasi muindasitiri yemotokari. Kunyange isiri rabha, PVC (polyvinyl chloride) inoshandiswa zvakanyanya thermoplastic ine yakanaka makemikari kuramba uye kusimba. Inowanzo shandiswa mumapombi, tambo insulation, uye akasiyana ekuvaka maapplication.
Tembiricha kuramba
Imwe yemisiyano yakakosha pakati peEPDM neNBR/PVC ndiko kuramba kwavo tembiricha. EPDM inogona kutsungirira tembiricha kubva -40 ° F kusvika 250 ° F (-40 ° C kusvika 121 ° C), zvichiita kuti ive yakakodzera kune dzakasiyana siyana nharaunda. Kusiyana neizvi, NBR ine tembiricha yakaderera, kazhinji ichiita zvakanaka pakati -40°F ne212°F (-40°C kusvika 100°C). Nepo PVC ichishandiswa zvakanyanya, ine tembiricha shoma uye inoita kunge brittle pakudziya kwakaderera.
Chemical resistance
Panyaya yekupikisa makemikari, NBR inomira pachena pakuramba kwayo mafuta, mafuta, uye zvimwe zvigadzirwa zvepetroleum. Izvi zvinoita kuti ive sarudzo yakanakira kunyorera mumaindasitiri emotokari uye aerospace. Kunyange zvazvo EPDM inopesana nemishonga yakasiyana-siyana, inoita zvakashata maererano nekurwisana nemafuta nemafuta. PVC, kune rumwe rutivi, inopesana nemishonga yakasiyana-siyana asi inogona kukanganiswa nezvimwe zvinonyungudutsa nemafuta.
EPDM neNBR/PVC vane maapplication akasiyana siyana nekuda kwezvivakwa zvavo. EPDM inowanzoshandiswa mukugadzira denga, mota yemamiriro ekunze, uye magetsi ekudzivirira. Kugara kwayo uye kuramba kune zvakatipoteredza zvinhu zvinoita kuti ive sarudzo yakanakira yekunze kwekushandisa. NBR inonyanya kushandiswa muindasitiri yemotokari yemafuta- uye-inodzivirira mafuta ekushandisa senge magasi, zvisimbiso, uye hose. PVC, nekuda kwesimba rayo uye kuita zvakasiyana-siyana, inoshandiswa zvakanyanya mukuvaka mapaipi, mafittings, uye magetsi ekudzivirira.
Kufunga Kwemari
Mutengo ndechimwe chinhu chekufunga nezvacho pakusarudza pakati peEPDM neNBR/PVC. Kazhinji, EPDM inoita kunge inodhura kupfuura NBR nekuda kwehukuru hwezvivakwa uye kuita munzvimbo dzakaoma. PVC kazhinji ndiyo inonyanya kudhura sarudzo, zvichiita kuti ive sarudzo yakakurumbira yemapurojekiti anokoshesa bhajeti.
Pakupedzisira, sarudzo pakati peEPDM neNBR/PVC zvinhu zvinoenderana zvakanyanya nezvinodiwa zvekushandisa. EPDM yakanakira zvikumbiro zvekunze zvinoda kupikisa mamiriro ekunze, nepo NBR ndiyo inofarirwa yemafuta nemafuta kuramba mumotokari. PVC inopa kushandiswa kwakasiyana-siyana uye kudhura-kushanda, kusangana nemhando dzakasiyana dzezvido zvekuvaka. Kunzwisisa misiyano iyi kunogona kubatsira mainjiniya, vagadziri, uye vatengi kuita sarudzo dzine ruzivo dzakaenderana nezvavanoda chirongwa.
Nguva yekutumira: Aug-15-2025
