Kana zvasvika pakusarudza zvinhu zvakanaka zvepurojekiti yako, zvakakosha kuyera zvakanakira nezvayakaipira zvesarudzo yega yega. Mune ino blog post, tichave tichienzanisa zvinhu zviviri zvakajairika zvinoshandiswa mukugadzira uye engineering: silicone rabha uye viton.
Chii chinonzi silicone rabha uye viton?
Silicone rabha uye viton zvinhu zviviri zvinowanzo shandiswa mukugadzira uye engineering. Izvo zvine zvose zviri zviviri zvinobatsira uye zvinokanganisa, izvo zvinofanirwa kufungwa nezvazvo pakusarudza kuti ndeipi yekushandisa kune chimwe chinangwa.
Silicone rabha uye viton marudzi maviri akasiyana elastomer, kana synthetic rabha. Zvose zviri zviviri zvinowanzoshandiswa mumashandisirwo apo kushanduka, kusimba, uye kuramba kupisa uye makemikari zvinodiwa. Nekudaro, pane misiyano yakakosha pakati pezvinhu zviviri izvo zvinofanirwa kutariswa pakusarudza chinhu cheimwe application.
Silicone rabha i polymer yakagadzirwa nesilicon uye maatomu eokisijeni. Silicone rabha ine huwandu hwakasiyana hwekushandisa nekuda kweiyo yakasarudzika musanganiswa wezvivakwa. Inoshingirira kune tembiricha yakanyanyisa, zvese inopisa nekutonhora, zvichiita kuti ive chinhu chakanakira kushandiswa mumaapplication uko kunyanyisa kupisa kuri chinhu. Silicone rabha zvakare ine yakanakisa magetsi ekudzivirira zvivakwa uye inopesana neUV mwenje uye ozone, ichiita kuti ive yakakodzera kushandiswa mukushandisa kunze. Nekudaro, silicone rabha haina mwero wakafanana wekupikisa petroleum-based fluid sezvinoita viton.
Viton irabha rekugadzira rakagadzirwa kubva kufluoroelastomer, iri copolymer yevinylidene fluoride uye hexafluoropropylene. Vinylidene fluoride ine simba fluorinating agent, iyo inopa viton kupikisa kwayo kwakanyanya kumafuta, mafuta, uye mamwe emafuta epetroleum-based fluid. Viton zvakare inoshingirira kune tembiricha yakakwira, ichiita kuti ive chinhu chakanakira kushandiswa mumagaskets uye zvisimbiso mumainjini uye dzimwe nzvimbo dzepamusoro-tembiricha. Viton haiputsi nyore nyore sesilicone rabha kana yakafumurwa kune tembiricha yakakwira. Nekudaro, viton haina mwero wakafanana wekupikisa UV mwenje uye ozone sezvinoita silicone rabha.
Ndeupi musiyano uripo pakati pesilicone rubber uye viton?
Silicone rabha uye Viton vane misiyano mishoma yakakosha inovasiyanisa. Kune imwe, silicone rabha ine yakaderera kupisa kupisa kupfuura Viton, ichiita kuti ive yakanakira maapplication ayo asingade yakawandisa kupisa kupisa. Pamusoro pezvo, silicone rabha inowanzo shanduka kupfuura Viton, ichiita kuti ive yakakodzera kune maapplication uko kuchinjika kwakakosha. Chekupedzisira, silicone rabha inodhura zvishoma pane Viton, zvichiita kuti ive sarudzo ine hupfumi kune akawanda maapplication.
Viton® ndeye yakakwira performance synthetic rubber inoshandiswa zvakanyanya muO-rings, mafuta system uye emission control application. Viton® yakanyatsokodzera kune akawanda maindasitiri uye mota wiring hoses uko kunopesana nemafuta, mafuta, mafuta uye makemikari ane hukasha anodiwa.
Silicone rabha elastomer inoumbwa nesilicone — iyo pachayo polima — ine silicon pamwe neokisijeni, kabhoni, haidrojeni, uye dzimwe nguva mamwe makemikari zvinhu. Silicone rubber anoshandiswa zvakanyanya muindasitiri, uye kune akawanda magadzirirwo. Silicone rubbers inowanzova imwe- kana maviri-chikamu mapolima, uye anogona kunge aine mafirita ekuvandudza chaiwo zvivakwa.
Ndezvipi zvinobatsira zvesilicone rubber?
Silicone rabha ine akati wandei mabhenefiti pane mamwe marudzi erabha. Inoshingirira kune tembiricha yakanyanyisa, zvese inopisa nekutonhora, uye inoramba ichichinjika pamusoro pemhando dzakasiyana dzetembiricha. Iyo zvakare inopesana nekuchembera, UV mwenje, ozone, uye oksijeni. Silicone rubber haiputsi nyore nyore, saka ine hupenyu hurefu.
Ndezvipi zvinobatsira zve viton?
Viton irabha yekugadzira iyo inoshandiswa mumhando dzakasiyana siyana inoda kuramba kutonhora kwakanyanya, makemikari, uye mafuta. Iyo ine yakanakisa kupikisa kupisa, makemikari, uye mafuta, zvichiita kuti ive yakanakira yekuisa chisimbiso maapplication. Viton zvakare inoshingirira kutonhora kutonhora kupfuura mamwe marabha, ichiita kuti ive yakanakira kunyorera munzvimbo dzakanyanyisa.
Ko silicone rabha uye viton inofananidzwa sei maererano nemutengo?
Pane musiyano wakakosha mumutengo wesilicone rubber uye viton. Silicone rabha inodhura zvakanyanya pane viton. Musiyano mumutengo unokonzerwa nekusiyana kwemitengo yekugadzira. Viton inogadzirwa kubva mukugadzira zvinhu, nepo silicone rabha inogadzirwa kubva kune zvakasikwa zvinhu.
Ko silicone rabha uye viton inofananidzwa sei maererano nekusimba?
Silicone rabha uye viton ese ari maviri akasimba zvinhu. Nekudaro, viton yakanyanya kusimba kupfuura silicone rabha. Viton inokwanisa kumira tembiricha yakakwira uye inoshingirira kumakemikari, ukuwo silicone rabha iri nyore kuchinjika uye ine density yakaderera.
Ko silicone rabha uye viton inofananidzwa sei maererano nekupokana nemakemikari?
Nepo ese ari maviri silicone rubber uye viton achipokana nemakemikari mazhinji, pane misiyano mikuru pakati pezviviri izvi. Viton inowanzo shingirira kumafuta nemafuta, ukuwo silicone rabha inoshingirira kumvura nekupisa. Panyaya yemakemikari chaiwo, viton inokwanisa kurwisa acetic acid, acetone, uye mineral oil, nepo silicone rubber inokwanisa kurwisa benzene, Freon, uye peroxide zviri nani.
Ko silicone rubber uye viton inofananidzwa sei maererano nekudzivisa kupisa?
Silicone rabha inokwanisa kushingirira tembiricha inosvika 180°C (356°F), ukuwo viton inogona kushingirira tembiricha inosvika 200°C (392°F). Panyaya yekupikisa kupisa, viton inokodzera zvirinani kune maapplication anoda kuratidzwa kwakawedzerwa kune tembiricha yakakwira.
