Xa kuziwa ekukhetheni imathiriyeli eyiyo yeprojekthi yakho, kubalulekile ukuvavanya iingenelo kunye neengozi zokhetho ngalunye. Kule post yebhlog, siza kuthelekisa izinto ezimbini eziqhelekileyo ezisetyenziswa kwimveliso kunye nobunjineli: irabha ye-silicone kunye ne-viton.
Yintoni irabha ye-silicone kunye ne-viton?
Irabha ye-silicone kunye ne-viton zizinto ezimbini ezihlala zisetyenziselwa ukuvelisa kunye nobunjineli. Zizo zombini iingenelo kunye nezinto ezisilela kuzo, ekufuneka ziqwalaselwe xa kusenziwa isigqibo sokuba yeyiphi enokusetyenziselwa injongo ethile.
Irabha yeSilicone kunye neviton ziintlobo ezimbini ezahlukeneyo ze-elastomer, okanye irabha yokwenziwa. Zombini izixhobo zisetyenziswa ngokuqhelekileyo kwizicelo apho ukuguquguquka, ukuqina, kunye nokuchasana nokushisa kunye neekhemikhali zifunekayo. Nangona kunjalo, kukho ukungafani okubalulekileyo phakathi kwezinto ezimbini ekufuneka ziqwalaselwe xa ukhetha into ethile kwisicelo esithile.
Irabha yeSilicone yipolymer eyenziwe ngesilicon kunye neeathom zeoksijini. I-rubber ye-silicone inoluhlu olubanzi lwezicelo ngenxa yokudibanisa kwayo okukhethekileyo kweempawu. Iyakwazi ukumelana namaqondo obushushu agqithisileyo, ashushu kunye nokubanda, okwenza kube yinto efanelekileyo yokusetyenziswa kwizicelo apho ubushushu obugqithisileyo bungumba. Irabha yeSilicone nayo ineempawu ezibalaseleyo zokugquma umbane kwaye iyamelana nokukhanya kwe-UV kunye ne-ozone, iyenza ilungele ukusetyenziswa kwizicelo zangaphandle. Nangona kunjalo, irabha ye-silicone ayinayo inqanaba elifanayo lokumelana nolwelo olusekwe kwi-petroleum njengoko i-viton isenza.
IViton yirabha yokwenziwa eyenziwe ngefluoroelastomer, eyicopolymer yevinylyide fluoride kunye nehexafluoropropylene. IVinylidene fluoride yiarhente enamandla yokuntywila, enika iviton ukuxhathisa okugqwesileyo kumafutha, amafutha, kunye nolunye ulwelo olusekwe kwipetroleum. IViton nayo iyamelana namaqondo obushushu aphezulu, iyenza ibe yeyona nto ifanelekileyo yokusetyenziswa kwi-gaskets kunye netywina kwiinjini nakwezinye iindawo ezinobushushu obuphezulu. I-Viton ayiphuli ngokulula njengerabha ye-silicone xa ibonakaliswe kumaqondo aphezulu. Nangona kunjalo, i-viton ayinayo inqanaba elifanayo lokumelana nokukhanya kwe-UV kunye ne-ozone njengoko irabha ye-silicone isenza.
Nguwuphi umahluko phakathi kwerabha ye-silicone kunye ne-viton?
Irabha yeSilicone kunye neViton ineeyantlukwano ezimbalwa eziphambili ezibenza bahluke. Okokuqala, irabha ye-silicone inokumelana nobushushu obuphantsi kuneViton, iyenza ilungele usetyenziso olungadingiyo ukumelana nobushushu. Ukongezelela, irabha ye-silicone iguquguquka ngokubanzi kuneViton, iyenza ifaneleke ngakumbi kwizicelo apho ukuguquguquka kubalulekile. Okokugqibela, irabha ye-silicone ixabisa ngaphantsi kweViton, iyenza ibe lukhetho olunoqoqosho ngakumbi kwizicelo ezininzi.
I-Viton® yirubha yokwenziwa ephezulu yokusebenza esetyenziswa kakhulu kwi-O-rings, inkqubo yamafutha kunye nezicelo zokulawula ukukhutshwa. I-Viton® nayo ifanelekile kumashishini amaninzi kunye imibhobho yeentambo zeemoto apho kufuneka ukuxhathisa kumafutha, i-oyile, izithambiso kunye neekhemikhali ezinobundlobongela.
Irabha ye-Silicone yi-elastomer eyenziwe nge-silicone-yona i-polymer-equlethe i-silicon kunye ne-oksijini, i-carbon, i-hydrogen, kunye nezinye iikhemikhali ngamanye amaxesha. Iirubha ze-Silicone zisetyenziswa ngokubanzi kwishishini, kwaye kukho iindlela ezininzi zokuqulunqa. Iirubha ze-Silicone zihlala ziyi-polymers enye okanye ezimbini, kwaye zinokuqulatha izihluzi zokuphucula iimpawu ezithile.
Ziziphi iingenelo zerabha ye-silicone?
Irabha ye-Silicone inenani leenzuzo ngaphezu kwezinye iintlobo zerabha. Iyakwazi ukumelana namaqondo obushushu agqithisileyo, kushushu nokubanda, kwaye ihlala iguquguquka kuluhlu olubanzi lwamaqondo obushushu. Ikwamelana nokuguga, ukukhanya kwe-UV, i-ozone, kunye neoksijini. Irabha ye-silicone ayiqhekeki ngokulula, ngoko inobomi obude.
Ziziphi iingenelo zeviton?
IViton yirabha eyenziweyo esetyenziswa kwiintlobo ngeentlobo zezicelo ezifuna ukuxhathisa amaqondo obushushu aphezulu, iikhemikhali kunye neoyile. Inokumelana okubalaseleyo nobushushu, iikhemikhali, kunye nee-oyile, iyenza ilungele ukutywina izicelo. I-Viton iyakwazi ukumelana nobushushu obubandayo kunezinye iirubha, iyenza ilungele ukusetyenziswa kwiindawo ezisingqongileyo.
I-rubber ye-silicone kunye ne-viton ithelekisa njani ngokweendleko?
Kukho umehluko omkhulu kwiindleko zerubha ye-silicone kunye ne-viton. Irabha yeSilicone inexabiso eliphantsi kakhulu kuneviton. Umahluko kwiindleko kungenxa yomahluko kwiindleko zemveliso. I-Viton yenziwe kwizinto zokwenziwa, ngelixa irabha ye-silicone yenziwe kwizinto zendalo.
I-rubber ye-silicone kunye ne-viton ithelekisa njani ngokwemiqathango yokuqina?
Irabha yeSilicone kunye neviton zombini zizinto ezihlala ixesha elide. Nangona kunjalo, i-viton yomelele ngakumbi kunerabha ye-silicone. IViton inokumelana namaqondo obushushu aphezulu kwaye iyakwazi ukumelana neekhemikhali, ngelixa irabha yesilicone ibhetyebhetye kwaye inoxinano olusezantsi.
I-rubber ye-silicone kunye ne-viton ithelekisa njani ngokuchasana neekhemikhali?
Ngelixa zombini irabha ye-silicone kunye ne-viton zixhathisa kwiikhemikhali ezininzi, kukho umahluko ophambili phakathi kwezi zimbini. IViton ngokuqhelekileyo ixhathisa ngakumbi kwioli kunye namafutha, ngelixa irabha ye-silicone ixhathisa ngakumbi emanzini kunye nobushushu. Ngokumalunga neekhemikhali ezithile, i-viton iyakwazi ukuxhathisa i-acetic acid, i-acetone, kunye neoli ye-mineral, ngelixa i-rubber ye-silicone ikwazi ukumelana ne-benzene, i-Freon kunye ne-peroxide.
I-rubber ye-silicone kunye ne-viton ithelekisa njani malunga nokumelana nobushushu?
Irabha yeSilicone inokumelana namaqondo obushushu ukuya kutsho kwi-180°C (356°F), logama iviton ikwazi ukumelana namaqondo obushushu ukuya kutsho kuma-200°C (392°F). Ngokubhekiselele ekuchaseni ukushisa, i-viton ifaneleka ngakumbi kwizicelo ezifuna ukubonakaliswa okwandisiweyo kumaqondo aphezulu.
