Rabha yekugadzira zvinhu ndeimwe yezvinhu zvitatu zvikuru zvekugadzira zvinhu uye inoshandiswa zvakanyanya muzvikamu zvakasiyana-siyana zveindasitiri, dziviriro yenyika, kutakura zvinhu uye hupenyu hwezuva nezuva. Rabha yekugadzira zvinhu inoshanda zvakanyanya uye inoshanda zvakanaka chinhu chakakosha chekusimudzira nguva itsva, uye zvakare chinhu chakakosha chehurongwa hwenyika.
Zvinhu zverabha zvakagadzirwa zvakasiyana nerabha uye zvine zvinhu zvakakosha zvakaita sekudzivirira kupisa kwakanyanya uye kwakaderera, kudzivirira kukwegura, kudzivirira kusvibiswa kwemvura, uye kudzivirira makemikari, kunyanya rabha yenitrile yakasanganiswa nehydrogenated (HNBR), thermoplastic vulcanizate (TPV), rabha yeSilicone, rabha yefluorine, rabha yefluorosilicone, rabha yeacrylate, nezvimwewo. Nekuda kwehunhu hwayo, zvinhu zverabha zvakasarudzika zvave zvinhu zvakakosha pakuvandudza mazano makuru enyika uye minda iri kubuda senge ndege, indasitiri yekudzivirira yenyika nemauto, ruzivo rwemagetsi, simba, nharaunda, uye gungwa.
1. Rabha ye nitrile ine hydrogenated (HNBR)
Rabha yeNitrile ine Hydrogenated irabha rakazara zvakanyanya rinowanikwa nekusarudza hydrogenating mayuniti ebutadiene ari panitrile rabha cheni kuitira kuvandudza kupisa uye kuramba kwekukwegura kwerabha yeNitrile butadiene (NBR). Chinhu chikuru chayo ndechekuti inogona kushandiswa kwenguva yakareba pa150 ℃, uye ichiri kukwanisa kuchengetedza hunhu hwayo hwepanyama uye hwemakanika pakupisa kwakanyanya, izvo zvinogona kusangana nezvinodiwa zvakakosha zvekudzivirira kupisa kwakanyanya uye kuramba makemikari ezvinhu mumotokari, mundege, mumunda wemafuta nedzimwe nzvimbo. Zvinodiwa, zviri kushandiswa zvakanyanya, zvakaita sezvisimbiso zvemafuta emotokari, zvikamu zvefuel system, mabhandi ekutumira mota, mabhokisi ekubata madhiri nemapistoni ematope, maroller erubha ekudhinda nemachira, zvisimbiso zvemuchadenga, zvinhu zvekunyudza shock absorption, nezvimwewo.
2. Thermoplastic Vulcanizate (TPV)
Ma thermoplastic vulcanizates, akapfupikiswa se TPVs, iboka rakakosha re thermoplastic elastomers dzinogadzirwa ne "dynamic vulcanization" yemisanganiswa isingasanganisike ye thermoplastics nema elastomers, kureva kusarudzwa kwechikamu che elastomer panguva yekusanganiswa kwe melt ne thermoplastic Sexual cross-linking. Kusanganiswa kwechikamu che rabha panguva imwe chete pamberi pe crosslinking agent (zvichida peroxides, diamines, sulfur accelerators, nezvimwewo) panguva yekusanganiswa kwe melt ne thermoplastics kunoguma ne dynamic vulcanizate continuous thermoplastic matrix inoumbwa ne dispersed crosslinked raber. Zvidimbu zviri muchikamu, dynamic vulcanization zvinotungamira mukuwedzera kwe rubber viscosity, iyo inokurudzira phase inversion uye inopa multiphase morphology mu TPV. TPV ine mashandiro akafanana nerabha yethermosetting uye kumhanya kwekugadzirisa kwethermoplastics, izvo zvinonyanya kuratidzwa mukushanda kwepamusoro/mutengo, dhizaini inochinjika, huremu hwakareruka, tembiricha yekushanda yakafara, kugadziriswa kuri nyore, mhando yechigadzirwa uye kugadzikana kwehukuru hwayo Uye inogona kudzokororwa, inoshandiswa zvakanyanya muzvikamu zvemotokari, kuvaka magetsi, zvisimbiso nedzimwe nzvimbo.
3. Rabha resilicone
Rabha reSilicone irabha rakagadzirwa nepolysiloxane yakasanganiswa nemafuta anosimbisa, zvinhu zvinozadza zvinoshanda uye zvinowedzerwa, uye rinova rakafanana ne network elastomer mushure mekuputirwa pasi pemamiriro ekupisa nekumanikidzwa. Rine simba rakanaka rekudzivirira kupisa kwepamusoro nepashoma, rekudzivirira mamiriro ekunze, rekudzivirira ozone, rekudzivirira arc, rekudzivirira magetsi, rekudzivirira hunyoro, rekudzivirira mhepo yakawanda uye inertia yemuviri. Rine mashandisirwo akasiyana-siyana muindasitiri yemazuva ano, yemagetsi neyemagetsi, yemotokari, yekuvaka, yekurapa, yekutarisira munhu uye yemamwe mabasa, uye rave chinhu chakakosha chemhando yepamusoro muindasitiri yendege, yekudzivirira neyemauto, yekugadzira nehunyanzvi uye yemamwe mabasa.
4. Rabha yeFluorine
Rabha yeFluorine inoreva rabha rine fluorine rine maatomu efluorine pamaatomu ekabhoni echeni huru kana cheni dzepadivi. Hunhu hwayo hwakakosha hunotsanangurwa nehunhu hwemaumbirwo emaatomu efluorine. Rabha yeFluorine inogona kushandiswa pa250°C kwenguva yakareba, uye tembiricha yepamusoro yebasa inogona kusvika 300°C, nepo tembiricha yekushandira yeEPDM yechinyakare nerabha yebutyl iri 150°C chete. Kuwedzera pakudzivirira tembiricha yepamusoro, fluororubber ine simba rekudzivirira mafuta, resistance yemakemikari, resistance yeasidhi nealkali, uye kushanda kwayo kwakazara ndiko kwakanakisa pakati pezvinhu zvese zverabha elastomer. Inonyanya kushandiswa kudzivirira mafuta emaroketi, zvombo, ndege, ngarava, mota nedzimwe mota. Minda yakakosha senge sealing uye mapaipi anodzivirira mafuta zvinhu zvakakosha zvehupfumi hwenyika neindasitiri yekudzivirira kwenyika nemauto.
5. Rabha yeAcrylate (ACM)
Acrylate rabha (ACM) ierastomer inowanikwa ne copolymerization ye acrylate se main monomer. Chain yayo huru i saturated carbon chain, uye mapoka ayo emativi mapoka e polar ester. Nekuda kwechimiro chayo chakakosha, ine hunhu hwakawanda hwakanaka, hwakadai sekudzivirira kupisa, kuramba kukwegura, kuramba mafuta, kuramba ozone, kuramba UV, nezvimwewo, hunhu hwayo hwemakanika uye hunhu hwekugadzirisa zviri nani pane fluororubber ne silicone rabha, uye kuramba kwayo kupisa, kuramba kukwegura uye kuramba mafuta zvakanaka. mu nitrile rabha. ACM inoshandiswa zvakanyanya munzvimbo dzakasiyana-siyana dzinopisa zvakanyanya uye dzisingapindi mafuta, uye yave chinhu chinovhara chakagadzirwa nekukurudzirwa neindasitiri yemotokari mumakore achangopfuura.
Nguva yekutumira: Gunyana-27-2022
