NBR PVC NITRILE RABBER THOVU YOTCHULIRA SHEET ROLL

Kodi chotetezera mapaipi a rabara a nitrile chimapangidwa ndi chiyani?

Chitoliro cha rabara cha nitrile chimapangidwa ndi rabara ya nitrile kapena Buna R, elastomer yomwe imagwiritsidwa ntchito kwambiri. Rabara ya nitrile imakhala ndi ma copolymers osakhuta a acrylonitrile ndi butadiene monomers. Mankhwala ndi kapangidwe kake ka rabara ya nitrile zimasiyana kutengera kapangidwe ka polima.

Kodi kusiyana pakati pa NBR/PVC ndi EPDM Insulation ndi kotani?

Chotetezera kutentha cha elastomeric cha maselo otsekedwa, chomwe chimadziwikanso kuti rabara, chakhala chikupezeka m'masitolo kwa zaka pafupifupi 70. Kawirikawiri chimayikidwa kuti chiteteze makina osazizira monga HVAC, VRF/VRV, firiji, madzi ozizira, gasi wamankhwala, ndi mapaipi amadzi ozizira.

Pofuna kusankha zipangizo zomangira, kusanthula ndi kufananiza ndikofunikira kwambiri kuti musankhe bwino chinthucho. Kaya mukusankha zinthu zomangira nyumba yayitali, kapena chinthu chotenthetsera mpweya cha HVAC kapena makina a mapaipi, kuonetsetsa kuti zofunikira pakugwiritsa ntchito ndi malamulo omangira zikukwaniritsidwa ndikofunikira kwambiri kuti pakhale kukhazikika kogwira mtima komanso kogwirizana ndi malamulo. Zinthu monga kutentha, kuchulukana, kulola madzi kulowa, kapena kukana kwa UV zonse zimatha kukhudza kusankha bwino kwa polojekiti.

Mu makina otetezera kutentha, Kingflex ili ndi njira zosiyanasiyana zomwe zingagwiritsidwe ntchito komanso zosowa zilizonse. Mosiyana ndi opanga ena oteteza kutentha, Kingflex imapanga zinthu ziwiri zotetezera kutentha zomwe zimagwiritsidwa ntchito kwambiri pa HVAC, madzi ozizira, ndi makina oziziritsira kutengera ukadaulo wa nitrile butadiene rabara (NBR) ndi ethylene propylene diene monomer rabara (EPDM). Ma thovu onsewa a elastomeric ndi osinthasintha, otsekedwa, ndipo amalimbana kwambiri ndi chinyezi komanso kulowa kwa madzi. Ndipotu, kulowa kwawo m'madzi ndi kochepa kwambiri kotero kuti nthawi zambiri safuna zinthu zina zoletsa nthunzi ya madzi. Komanso, chifukwa cha kukana nthunzi kwambiri komanso kutulutsa madzi pamwamba, ma thovu awa a elastomeric amagwira ntchito yabwino kwambiri poletsa kupangika kwa madzi pamwamba.

Mphamvu Zosiyanasiyana ndi Magwiritsidwe Osiyanasiyana

Ngakhale kuti NBR ndi EPDM zikuoneka zofanana, pali kusiyana kwakukulu. NBR ndi polima yosanunkhira, pomwe EPDM ndi polima wonunkhira. Komanso, NBR imapangidwa pogwiritsa ntchito acrylonitrile ndi butadiene monomers, pomwe EPDM imapangidwa pogwiritsa ntchito ethylene, propylene ndi diene comonomer. Kusiyana kwina kwakukulu pankhani yogwiritsira ntchito, ndikuti NBR ili ndi kutentha kwa -40F mpaka 180F, pomwe EPDM ili ndi kutentha kwakukulu kwa ntchito kwa -65°F mpaka 250°F)

NBR yokha ndiyo elastomer yolimba kwambiri yolimbana ndi mafuta ndi mafuta. Imadziwikanso kuti imasunga kukhazikika kwake kutentha kochepa. Kumbali ina, EPDM ndi rabara yolimba kutentha, ozone, ndi UV yomwe ili ndi mphamvu yayikulu yokoka, kukana kukalamba, komanso kukana kukanda, komanso kukhala ndi utsi wochepa wokhala ndi kukula kwapakati kwa lawi makamaka pa makulidwe a 1-1/2 ndi 2 inchi.

Zinthu zonse ziwiri zotetezera thovu la rabara kuchokera ku Kingflex ndi njira zina zodziwika bwino m'malo mwa fiberglass pa HVAC, madzi ozizira, ndi makina oziziritsira (mapaipi, mapampu, matanki, zotengera, ndi mabwalo) chifukwa cha kapangidwe kake ka mankhwala osagwirizana ndi madzi, kapangidwe ka maselo otsekedwa, komanso zoletsa nthunzi zomwe zimamangidwa mkati.