Masiku ano, mankhwala ambiri kuima pa chitukuko cha umisiri ndi makampani, ndi bwino PTFE chubu ndi chimodzi mwa zinthu zimenezi kuti mbali yofunika m'madera osiyanasiyana.Koma kodi mudawonapo kukalamba kwa machubu a PTFE?Kuchita kwa machubu a PTFE kudzachepetsedwanso akakalamba.Kotero mndandanda wa miyeso iyenera kuchitidwa kuti tipewe kukalamba kumapeto kwa kupanga machubu a PTFE.Kukalamba kwa machubu a PTFE ndi kwachilengedwe ndipo sikungalephereke, koma chinthu chokhacho chomwe mungachite ndikuchepetsa ukalamba.PTFE machubu.Pofuna kuchepetsa ukalamba wa machubu a PTFE, muyenera kulimbikitsa kukonza pogwiritsa ntchito machubu a PTFE ndikuchitapo kanthu kuti mupewe izi.Apa Suko akukupatsirani njira zazikulu zinayi zochepetsera kukalamba kwa chubu lanu la PTFE.
1. Posankha zinthu sizing za PTFE machubu, muyenera kugwiritsa ntchito sulfure kuchiritsa dongosolo ngati n'kotheka.Chifukwa cha kutentha kukana kwa mphira wake vulcanized, zikhoza kusinthidwa ndi kuchepetsa kapena kupewa ntchito elemental sulfure, amene angathe kuchepetsa kapena kuchotsa crosslinks polysulfide ndi kupanga makamaka monosulfide kapena disulfide crosslinks, motero kuchepetsa ukalamba machubu teflon.
2. Kuonetsetsa kuti zinthuzo zimakwaniritsa kutentha komwe kumafunidwa, kugwiritsa ntchito peroxide kumafunika.Pachifukwa ichi, peroxide vulcanization imapanga carbon ndi kukhazikika kwabwino kwa kutentha ndi carbon cross-linking bonds.PTFE chubu wopangaKomanso amanena kuti muyenera kulabadira mwapadera zina zowonjezera ntchito peroxides.Mwachitsanzo, kusankha kwa antioxidants kuyenera kukhala kolimba kwambiri, chifukwa ambiri aiwo amasokoneza vulcanization ya peroxides.Choncho, mukhoza kugwiritsa ntchito mafuta a parafini, chowonjezera chothandiza chomwe sichidzasokoneza peroxide vulcanization.
3. Komanso, pofuna kupewa partitioning wa peroxide cation ndi kupewa vulcanization otsika kwambiri payipi mkulu-anzanu (kusonyezedwa ndi m'munsi kuuma, m'munsi modulus ndi apamwamba psinjika ndi mapindikidwe nthawi yaitali), muyenera kugwiritsa ntchito peroxide kuchepetsa kuchuluka kwa acidic filler.Ngati n'kotheka, kuwonjezera kwa mankhwala amchere (mwachitsanzo, nthaka okusayidi kapena magnesium oxide) nthawi zambiri kumapangitsa kuti peroxide ikhale yabwino kwambiri.
4. Popanga machubu abwino kwambiri a ptfe, zina zowonjezera zimatha kuwonjezeredwa, monga antioxidants, ndi mankhwala amchere, ndi zina zotero, kuti zipititse patsogolo kugwirizanitsa bwino kwa peroxides ndikuchedwa kukalamba kwa machubu a teflon.
Nthawi yotumiza: Jul-07-2022