Kunzwisisa musiyano uripo pakati peEPDM (ethylene propylene diene monomer) neNBR/PVC (nitrile butadiene rabha/polyvinyl chloride) kwakakosha pakusarudza zvinhu zvinoshandiswa zvakasiyana-siyana, kunyanya mumaindasitiri akaita semotokari, kuvaka, uye kugadzira. Zvinhu zvese izvi zvine hunhu hwakasiyana hunoita kuti zvikwanise kushandiswa zvakananga, uye kunzwisisa misiyano iyi kunogona kukubatsira kuita sarudzo dzakarongeka.
Kuumbwa uye hunhu
Ethylene propylene diene monomer (EPDM) irabha yakagadzirwa inozivikanwa nekudzivirira kupisa, ozone, uye mamiriro ekunze. Kuumbwa kwayo kwe ethylene, propylene, uye diene kunoita kuti ive nehunyanzvi hwakasiyana. Kusimba kwayo kwakanyanya uye kugona kwayo kutsungirira tembiricha dzakanyanya kunoita kuti ive sarudzo yakanaka yekushandisa panze. Inodzivirirawo UV uye kukwegura, zvichiita kuti ive sarudzo yakakurumbira yekuisa denga remba, zvisimbiso, uye magaskets.
Kune rumwe rutivi, NBR (nitrile butadiene rabha) irabha yakagadzirwa yakagadzirwa neacrylonitrile nebutadiene. Musanganiswa uyu unopa NBR simba rakanaka rekudzivirira mafuta nemafuta, zvichiita kuti ive chinhu chinodiwa pakuisa mafuta, zvisimbiso, uye magaskets muindasitiri yemotokari. Kunyange zvazvo isiri rabha, PVC (polyvinyl chloride) ipurasitiki inoshandiswa zvakanyanya ine simba rakanaka rekudzivirira makemikari uye kugara kwenguva refu. Inowanzoshandiswa mumapaipi, kuputira tambo, uye mashandisirwo akasiyana-siyana ekuvaka.
Kudzivirira tembiricha
Chimwe chezvinhu zvinonyanya kukosha pakati peEPDM neNBR/PVC inyaya yekuti dzinoramba kupisa tembiricha. EPDM inogona kutsungirira tembiricha dzinobva pa -40°F kusvika 250°F (-40°C kusvika 121°C), zvichiita kuti ive yakakodzera munzvimbo dzakasiyana-siyana. Kusiyana neizvi, NBR ine tembiricha yakaderera, inowanzoita zvakanaka pakati pe -40°F ne212°F (-40°C kusvika 100°C). Kunyange hazvo PVC ichishandiswa zvakanyanya, ine tembiricha shoma uye inowanzo pwanyika kana tembiricha yakaderera.
Kuramba kwemakemikari
Panyaya yekusagona kushandisa makemikari, NBR inonyatsozivikanwa nekusagona kushandisa mafuta, mafuta, nezvimwe zvigadzirwa zvepeturu. Izvi zvinoita kuti ive sarudzo yakanaka yekushandisa muindasitiri yemotokari nendege. Kunyange zvazvo EPDM ichisagona kushandisa makemikari akasiyana-siyana, haishande zvakanaka kana tichitarisa kusagona kushandisa mafuta nemafuta. PVC, kune rumwe rutivi, inodzivirira makemikari akasiyana-siyana asi inogona kukanganiswa nezvimwe zvinonyungudutsa nemafuta.
EPDM neNBR/PVC dzine mashandisirwo akasiyana zvikuru nekuda kwehunhu hwadzo hwakasiyana. EPDM inowanzoshandiswa mukugadzira denga, kubvisa denga remotokari, uye kudzivirira zvakatipoteredza. Kugara kwayo kwenguva refu uye kuramba zvakatipoteredza kunoita kuti ive sarudzo yakanaka yekushandiswa panze. NBR inonyanya kushandiswa muindasitiri yemotokari mukushandiswa kunodzivirira mafuta nemafuta senge magasket, zvisimbiso, nemapombi. PVC, nekuda kwesimba rayo uye kushanduka-shanduka kwayo, inoshandiswa zvakanyanya mukuvaka mapaipi, zvigadziko, uye kudzivirira zvakatipoteredza.
Kufunga Nezvemutengo
Mutengo chimwe chinhu chekufunga nezvacho pakusarudza pakati peEPDM neNBR/PVC. Kazhinji, EPDM inowanzo kudhura kupfuura NBR nekuda kwehunhu hwayo hwakanaka uye mashandiro ayo munzvimbo dzakaoma. PVC inowanzo kuve sarudzo inochengetedza mari zvakanyanya, zvichiita kuti ive sarudzo inozivikanwa kune mapurojekiti ane hanya nebhajeti.
Pakupedzisira, sarudzo pakati pezvinhu zveEPDM neNBR/PVC inoenderana zvakanyanya nezvinodiwa zvekushandisa. EPDM yakakodzera kushandiswa panze inoda kudzivirira mamiriro ekunze akanaka, nepo NBR iriyo inonyanya kufarirwa kushandiswa kudzivirira mafuta nemafuta muzvishandiso zvemotokari. PVC inopa kushanduka-shanduka uye kushanda zvakanaka, ichizadzisa zvinodiwa zvakasiyana-siyana zvekuvaka. Kunzwisisa misiyano iyi kunogona kubatsira mainjiniya, vagadziri, nevatengi kuita sarudzo dzakagadzirirwa zvinodiwa neprojekiti yavo.
Nguva yekutumira: Nyamavhuvhu-15-2025
