Mukushandiswa kwemaindasitiri, kusarudzwa kwezvinhu kwakakosha kuti ive nechokwadi chekusimba, kuita, uye mutengo-kushanda. Zvinhu zviviri zvinowanzo shandiswa zvekugadzira rabha zvinhu zvinonzi nitrile rabha (NBR) uye ethylene propylene diene monomer (EPDM). Nepo zvese zviri zviviri zviine zvivakwa zvazvo zvakasiyana uye mashandisiro, kunzwisisa mutsauko wazvo kwakakosha pakusarudza iyo chaiyo zvinhu zvinodiwa.
Ingredients uye zvinhu
NBR icopolymer yakagadzirwa kubva kuacrylonitrile uye butadiene. Iyo acrylonitrile yemukati muNBR inowanzova pakati pe18% ne50%, iyo inokanganisa kupikisa kwayo kwemafuta uye michina. NBR inozivikanwa nekuramba kwayo mafuta, mafuta uye mamwe makemikari, zvichiita kuti ive chinhu chesarudzo chemotokari uye maindasitiri ekushandisa izvo zvinowanzosangana nezvinhu izvi. NBR zvakare ine yakanaka tensile simba, abrasion kuramba uye kuchinjika, izvo zvakakosha kune zvisimbiso, gaskets uye hoses.
EPDM, kune rumwe rutivi, inonzi terpolymer yakagadzirwa kubva ethylene, propylene, uye diene chikamu. Iyi yakasarudzika kuumbwa kunopa EPDM yakanakisa yemamiriro ekunze kuramba, UV kugadzikana, uye ozone kuramba. EPDM inonyanya kukodzera kune zvekunze kunyorera senge denga remba, mota yemamiriro ekunze, uye zvisimbiso zvinoda kushingirira mamiriro ezvakatipoteredza. Uye zvakare, EPDM inoramba ichichinjika pakudziya kwakadzika, zvichiita kuti ive sarudzo yakanaka kune inotonhora mamiriro ekunze.
Kudzivisa kupisa
Kudzivirira kwekushisa kwepamusoro ndeimwe musiyano wakakosha pakati peNBR neEPDM. NBR inowanzoita zvakanaka mutembiricha ye -40°C kusvika 100°C (-40°F kusvika 212°F), zvichienderana nemagadzirirwo chaiwo. Zvisinei, kuratidzirwa kwenguva refu kune tembiricha yakakwirira kunogona kukonzera kuderera. Kusiyana neizvi, EPDM inogona kumira nehupamhi hwekushisa, kubva -50 ° C kusvika 150 ° C (-58 ° F kusvika 302 ° F), zvichiita kuti ive sarudzo yakakodzera yezvikumbiro zvinoda kukwirira kwepamusoro mumamiriro ezvinhu akaoma.
Chemical resistance
Panyaya yekupikisa makemikari, NBR inoita zvakanaka munzvimbo dzine mafuta nemafuta. Nekuda kwekugona kwayo kushingirira petroleum-based products, NBR inowanzoshandiswa muindasitiri yemotokari yemafuta hose, maO-rings, uye zvisimbiso. Zvisineyi, NBR haina kumira zvakanaka kune polar solvents, acids, kana mabhesi, izvo zvinogona kuita kuti izvimbe kana kudzikisira.
EPDM, kune rumwe rutivi, inopesana zvakanyanya nemvura, steam, uye zvakasiyana-siyana zvemakemikari, kusanganisira acids uye mabhesi. Izvi zvinoita kuti ive yakanaka kune indasitiri yekugadzira makemikari uye kune ekunze maapplication uko inowanzo ratidzwa kune hunyoro. Zvisinei, EPDM haina kukodzera kushandiswa nemafuta nemafuta, sezvo inoputika uye inorasikirwa nemagetsi ayo.
application
Kushandiswa kweNBR neEPDM kunoratidza zvimiro zvayo zvakasiyana. NBR inoshandiswa zvakanyanya mumasisitimu emafuta, gaskets uye zvisimbiso mumunda wemotokari, pamwe chete nemaindasitiri ekushandisa semafuta seals uye hoses. Kuramba kwemafuta ayo kunoita kuti ive chinhu chakakosha munzvimbo dzakafumurwa kune zvigadzirwa zvepetroleum.
Kusiyana neizvi, EPDM inokodzera zvirinani zvikumbiro zvinoda kuramba mamiriro ekunze, senge denga, zvisimbiso zvemahwindo, uye kubviswa kwemamiriro ekunze emotokari. Kupokana kwayo kuUV uye ozone kunoita kuti ive yakanakira kushandiswa kwekunze, kuve nechokwadi chekugara kwayo uye kuita kunyangwe mumamiriro ezvinhu akaomarara.
Muchidimbu, kusarudzwa kweNBR neEPDM zvinhu zvinoenderana nezvinodiwa zvekushandisa. NBR ndicho chinhu chesarudzo chemafuta uye mafuta kuramba, nepo EPDM ichikunda mukushandisa zvinoda mamiriro ekunze uye ozone kuramba. Kunzwisisa mutsauko mukuumbwa, zvivakwa, yakanyanya tembiricha kuramba, makemikari kuramba, uye mashandisirwo anozobatsira vagadziri uye mainjiniya kuita sarudzo dzine ruzivo pakusarudza chinhu chakakodzera kuzadzisa zvavanoda.
Kingflex vane zvose NBR uye EPDM insulation zvigadzirwa.Kana uine chero mubvunzo, ndapota inzwa wakasununguka kutumira kubvunza kune Kingflex timu chero nguva.
Nguva yekutumira: May-15-2025
