EPDM gasket abicah gasket
Iintlobo zeSilicone
Ukuba uyazibuza ukuba ingaba irabha ye-silicone yolona khetho lufanelekileyo lokutywinwa, lixesha lokujonga ngakumbi ezi elastomers zokwenziwa.Okokuqala, siza kuvavanya iingenelo zokutywinwa nge-silicone kwaye sithelekise ezinye izinto ze-silicone gasket.Emva koko siya kuhlela irabha ye-silicone ngeendlela ezahlukeneyo kwaye sivavanye usetyenziso oluthile.
Ukuxoxa ngesicelo sakho sokutywinwa nge-silicone,nceda uqhagamshelane nathi.
Izinto eziluncedo zokutywinwa ngeSilicone
Ii-Silicones zixhathisa ukufuma, iikhemikhali, ubushushu, ingqele, i-ozone, kunye nemitha ye-ultraviolet (UV).Zikwazinzileyo, zibhetyebhetye, zihlala ixesha elide, kwaye ziyathandeka ngobuhle.Iingenelo zerabha ye-silicone ziquka:
Ii-Silicones zixhathisa ukufuma, iikhemikhali, ubushushu, ingqele, i-ozone, kunye nemitha ye-ultraviolet (UV).Zikwazinzileyo, zibhetyebhetye, zihlala ixesha elide, kwaye ziyathandeka ngobuhle.Iingenelo zerabha ye-silicone ziquka:
1. Uzinzo oluhle lwe-thermal kunye ne-low chemical reactivity.
2. Ukuxhathisa okugqwesileyo kwi-ozone, ukukhanya kwelanga kunye neoksijini.
3. Iipropati ezihambelanayo kwiqondo lokushisa eliphezulu neliphantsi.
4.Igxotha amanzi, ixhathisa ukufuma, kwaye yenza amatywina angangeni manzi.
5. Ukufakwa kakuhle kombane kunye nokugqwesa kwegesi okugqwesileyo.
6. Yiza kuluhlu lwee-durometers kunye nemibala yesiko.
7. Ifumaneka kumabakala akhethekileyo kunye nezinto zokuzalisa.
Izicelo zokutywinwa ngeGesi yeRubha yeSilicone
Ukuba usazibuza ukuba ukutywinwa nge-silicone lolona khetho lufanelekileyo, qwalasela ezinye iindlela zokusetyenziswa kule polima iguquguqukayo.Imizekelo oza kufunda ngayo ayikuphela kokusetyenziswa kwe-silicone, kodwa imele.
Izixhobo eziphathwayo
Abavelisi bezixhobo eziphathwayo bafuna ukutywinwa kunye nezixhobo zokugquma ezinokumelana neemeko ezinzima ezifana nobushushu benjini, amaqondo obushushu angaphandle agqithisileyo, umoya, amanzi kunye nodaka.Imizekelo yeemveliso ze-silicone yezixhobo eziphathwayo ziquka izitywina ze-shaft, i-spark plug caps, i-hoses ye-radiator yokufudumeza, i-O-rings, kunye ne-roller gaskets.
Abavelisi bezixhobo eziphathwayo nabo bafuna iimethi zomgangatho, umnyango kunye nezitywina zefestile, kunye ne-thermal kunye ne-acoustic insulation.Irabha yesilicone ayisetyenziswa kuzo zonke ezi zicelo, kodwa ukugqunyelelwa kwe-injini kunokuba ne-fiberglass egqunywe ngesilicone ejongeneyo kunye nomaleko ovulekileyo we-silicone foam.Le thermal-acoustic insulation iyakwazi ukumelana nomlilo kwaye imelana nobushushu obuqhubekayo ukuya kuma-500° F.
Ukhuselo, i-Aerospace kunye ne-Aviation
Iikontraka zokhuselo zidinga irabha yokutywina kwiimoto zomkhosi kunye nezinye iimeko ezibalela ngamandla.Ngamanye amaxesha, ii-silicones zodidi lomkhosi ziyafuneka.Umzekelo, i-MIL-DTL-83528 ichaza iimfuno ze-elastomeric shielding gaskets ezidibanisa ukutywinwa kwendalo kunye nokhuseleko ngokuchasene nokuphazamiseka kwe-electromagnetic (EMI).
Ishishini le-aerospace nalo lifuna i-silicone gaskets eneempawu ezikhethekileyo.Ngokomzekelo, ii-silicones ezihlangabezana neemfuno ze-AA-59588A zinika ukuxhatshazwa okunamandla kwe-flex-fatigue - umlinganiselo wekhono le-elastomer lokumelana nokuguquguquka ngokuphindaphindiweyo okanye ukugoba.I-silicones eqhelekileyo inokumelana noluhlu lwamaqondo okushisa, kodwa ayizizo zonke ii-silicones ezixhathisa amanqanaba aphezulu okukhathala.
Izixhobo zokutya
Abavelisi bezixhobo zokutya bafuna irabha enokumelana nobushushu obuphezulu obusuka kwii-oveni zorhwebo kunye nobushushu obubandayo obusuka kwizikhenkcisi kunye neefriji.IiSilicones zibamba la maqondo obushushu agqithisileyo kwaye zinokuxhathisa ukucocwa rhoqo okufunekayo ngokutya kunye nezixhobo zesiselo.Ukusuka kumatheko okubhaka ukuya kwizitywina ze-oven, irabha ye-silicone iphinda ixhathise igrisi kunye namafutha.
Ngokuxhomekeke kwisicelo, abavelisi bensimbi engenasici kunye nezixhobo zokutya banokufuna ukusebenzisa imathiriyeli ye-silicone evunyiweyo ye-FDA.I-silicones ye-FDA ayinayo ityhefu, ayiphawuli, kwaye ayinayo i-allergenic.Kananjalo azinancasa, azinavumba, kwaye ziyakwazi ukumelana nokukhula kwendalo kweebhaktheriya.Ayizizo zonke i-silicones zebakala lokutya ezivunyiweyo yi-FDA, nangona kunjalo.
Iindawo ezivaliweyo kunye neZakhiwo kunye noKwakha
Ukutywinwa kwe-Enclosure nge-flurosilicons kusetyenziswa kunye nezixhobo ze-tablet kwishishini lamachiza.Ii-silicones zikwasetyenziswa kwiindawo ezivaliweyo kwizixhobo zombane kunye nezombane.Kwizakhiwo, i-rubber ye-silicone ingasetyenziselwa kwiifestile zefestile kunye nezitywina zomnyango.Ngolunye uhlobo lwezakhiwo ezakhiweyo, ii-silicones zisetyenziselwa ukuxhamla kwamalungu ngenxa yokuba ezi elastomers zivumela ukwanda kwe-thermal ngaphandle kokuphazamiseka.
Ngeempawu zabo eziqinileyo ze-dielectric, ii-silicones zisetyenziswa kunye neentambo kunye nokupheliswa kweentambo, i-corona-resistant insulation tubing, ii-keyboards, kunye nee-mats zoqhagamshelwano.I-silicones egcwele i-particle ebonelela nge-EMI yokukhusela isetyenziselwa ukutywinwa kwe-conductive kuba isinyithi okanye i-metal-coated particles nazo zibonelela nge-conductivity yombane.Ii-silicones ze-UL 94 ezichasayo ukusasazeka komlilo zisetyenziselwa ii-gaskets zerabha kwii-enclosure zombane.
Unyango kunye noNonophelo lwezeMpilo
Ii-Silicone zezicelo zonyango kunye nokhathalelo lwempilo zisetyenziswa kwityhubhu kwizixhobo zonyango kunye nezixhobo, imivumbo yezixhobo zokuphefumla ezenziweyo, kunye neegaskets ze-EMI.Njengokutya kunye nezixhobo zesiselo, irabha evunyiweyo ye-FDA inokufuneka.Nangona kunjalo ayizizo zonke ii-silicones zeemeko zempilo ezifuna imvume ye-FDA.Imizekelo ibandakanya izitywina ze-silicone umnyango kwiibhafu zokuhamba-ezibhedlele kwizigulana.
Ii-Silicones zikwasetyenziswa kunye nezibambo zokunyusa izigulane.Umbhobho wentsimbi unokuxhasa ubunzima bomguli, kodwa intsimbi engatyiwayo iyabanda, iqinile yaye maxa wambi imtyibilizi.I-Slip-on igwebu le-silicone libamba inkxaso yokubamba lula ukhuseleko olukhulu lwesigulane kunye nentuthuzelo.
