UHMWPE, yomwe imadziwikanso kuti polyethylene yapamwamba kwambiri ya modulus, ndi imodzi mwazinthu zogwira ntchito kwambiri padziko lonse lapansi.Chifukwa cha zinthu zake zabwino kwambiri monga kukana dzimbiri, kukana kuvala komanso kutsika kwapang'onopang'ono, pakadali pano imagwiritsidwa ntchito pazinthu zodzitetezera kunkhondo, zida zamakina ankhondo, zida zam'mlengalenga ndi madera ena ankhondo.
UHMWPE, yomwe imadziwikanso kuti polyethylene yapamwamba kwambiri ya modulus, ndi imodzi mwazinthu zogwira ntchito kwambiri padziko lonse lapansi.Chifukwa cha zinthu zake zabwino kwambiri monga kukana dzimbiri, kukana kuvala komanso kutsika kwapang'onopang'ono, pakadali pano imagwiritsidwa ntchito pazinthu zodzitetezera kunkhondo, zida zamakina ankhondo, zida zam'mlengalenga ndi madera ena ankhondo.Kukula kwa ulusi wochita bwino kwambiri ndiye maziko a zida zankhondo zadziko, ndipo zida zapamwamba zimatha kutsogolera luso lankhondo lapamwamba, lomwe lakhala maziko ofunikira pakumanga dziko lamakono lamphamvu, ndipo limakhala ndi udindo wotsimikizika gawo la zida zankhondo padziko lonse lapansi.
- Katundu wa UHMWPE CHIKWANGWANI
CHIKWANGWANI cha UHMWPE chili ndi zinthu zomveka bwino, kachulukidwe kake ndi kakang'ono, kamatha kuyandama pamadzi.NdipoUHMWPE CHIKWANGWANIndi ulusi wamphamvu kwambiri padziko lapansi pano.Poyerekeza ndi chitsulo, CHIKWANGWANI cha UHMWPE ndi champhamvu kuwirikiza kakhumi kuposa chitsulo chapamwamba kwambiri.Kuphatikiza apo, CHIKWANGWANI cha UHMWPE chilinso ndi kukana kwamphamvu kwa dzimbiri, kukana kwamankhwala, kukana kuvala ndi zinthu zina, magwiridwe antchito, UHMWPE CHIKWANGWANI m'magawo ambiri ofunikira ku China amagwira ntchito yofunika.
1.1 Makina abwino kwambiri
Poyerekeza ndi ulusi wina wochita bwino kwambiri, kachulukidwe kake ka UHMWPE ndi kachiŵiri kokha ku ulusi wamba wa PE ndi ulusi wa polypropylene, ndipo ndi ulusi wabwino kwambiri wokhala ndi kachulukidwe kakang'ono kwambiri pakati pa zida zoteteza zipolopolo.Ikhoza kuchepetsa kulemera kwa zinthu ndikukwaniritsa zopepuka ndikuwonetsetsa kuti zipolopolo zikuyenda bwino.
Poyerekeza ndi zinthu zina, mphamvu yamphamvu ya UHMWPE ndi yachiwiri yokha ya PBO ndi polyaryl ester fiber, ndipo ndi 0.1 yokha yosiyana ndi ya polyaryl ester fiber.Zitha kuwoneka kuti UHMWPE ili ndi mphamvu zolimba kwambiri.
Poyerekeza ndi ulusi wina, modulus yoyamba ndi yachiwiri kwa PBO ndi carbon fiber, zomwe zimasonyeza kuti CHIKWANGWANI chimakhala ndi kukana kwabwino kuti chiwononge kukangana ndipo sichimakonda kusinthika.Ndi mtundu wamtundu wa ulusi wokhala ndi mphamvu zapamwamba kwambiri komanso modulus yeniyeni, yomwe imagwira ntchito yofunika kwambiri pazambiri zoteteza zipolopolo.
1.2 Kuchita kwamagetsi kwamagetsi
UHMWPE fiber reflectance radar wave phenomenon ndi yochepa kwambiri, yokhala ndi ma conduction apamwamba kwambiri, imakulitsa kusinthasintha kwa dielectric kwa zinthu zophatikizika.Ngakhale ma dielectric okhazikika komanso otayika a polyethylene ndiwocheperako pakati pa zida zina, CHIKWANGWANI cha UHMWPE chimakhala ndi magwiridwe antchito omwe ulusi wa polyethylene sangafikire, ndipo umakhala ndi zotsatira zabwino kuposa zida wamba, chifukwa chake ndiye chinthu chomwe chimakondedwa kwambiri ndi radome, ndi apamwamba ndi zotsatira kuwala.
1. 3 Kukana kwanyengo ndi kukana kuvala
UHMWPE CHIKWANGWANI chimakhala ndi kukana kwanyengo kwabwino kwambiri ndipo chimatha kusunga mawonekedwe apamwamba osasinthika pakatha nthawi yayitali yowunikira komanso malo ovuta.Nthawi yomweyo, CHIKWANGWANI cha UHMWPE chimakhala ndi kukana kwamphamvu kwambiri komanso kukana kutopa kuposa ulusi wa aramid muzinthu zogwira ntchito kwambiri, kotero kuti kukana kwa ulusiwu kumakhala bwino kuposa ulusi wina wapamwamba kwambiri.Chifukwa cha kukana kwake kovala kwambiri komanso magwiridwe antchito osavuta, ili ndi chiyembekezo chabwino pantchito yamakampani.
1. 4 Chemical dzimbiri kukana
Mapangidwe amkati a UHMWPE fiber ndi olimba.Ndi chifukwa cha crystallinity wapamwamba ndi kulunjika kwa unyolo wa maselo mkati mwa ulusi kuti ulusi uli ndi inertia yamphamvu ya mankhwala.Choncho, pansi pa asidi ndi malo oyambira kapena kutentha kwakukulu ndi kutsika, ulusiwu ukhoza kusunga ntchito yake yoyambirira yosasinthika kwa nthawi yaitali, ndikusinthabe ndi kusewera mtengo wake m'malo ovuta.
1. 5 Kudzipaka mafuta
UHMWPE zakuthupi poyerekeza ndi zipangizo zina zaumisiri, UHMWPE zakuthupi ali otsika kwambiri mikangano factor, otsika mikangano chinthu chimapangitsa CHIKWANGWANI palokha bwino kudziona mafuta ntchito, ndi zinthu zabwino mu zipangizo pulasitiki pansi pa chikhalidwe palibe lubricant, kotero UHMWPE chuma chimagwiritsidwa ntchito mu engineering, ndi mtengo wogwiritsa ntchito kwambiri.UHMWPE CHIKWANGWANI ntchito ntchito makina, poyerekeza ndi chikhalidwe zitsulo ndi mkuwa pansi ntchito lubricant bwino.Chifukwa chake, poyerekeza ndi zida wamba, CHIKWANGWANI cha UHMWPE sichimangopulumutsa mtengo wazinthu zopangira, komanso chimatsimikizira magwiridwe antchito, motero chimakhala ndi mtengo wogwiritsa ntchito kwambiri.
2. Kukonzekera njira ya UHMWPE fiber
2.1 Njira yozungulira gel
Pali njira zambiri kukonzekera mkulu ntchito UHMWPE CHIKWANGWANI, koma chifukwa cha zosungunulira palokha, yokonza UHMWPE CHIKWANGWANI sangathe akwaniritsa.Gel spinning ndiyo njira yabwino kwambiri.Gel kupota njira ndi yosiyana ndi njira yothetsera kupota kapena kupota konyowa, nthawi zambiri amagwiritsa ntchito ma polima olemera kwambiri ngati zinthu zopangira, zopangidwa ndi yankho la semi dilute ngati kupota dope, flexible molecule chain solution to tangles in the semi dilute solution, ndiyeno kupota, crystallization, unyolo wotambasulira kwambiri, pambuyo pa chithandizo chochotsa mpaka nthawi yotambasula, yomwe imapangidwa ndi mphamvu zambiri komanso ulusi wambiri wa modulus.Njira yozungulira gel osakaniza ili ndi zotsatirazi: (1) ultra-high molecular weight polima imagwiritsidwa ntchito ngati zopangira; (2) gwiritsani ntchito njira yochepetsera ngati yopota;(3) kutambasula kwa hyperthermal kunachitika, ndipo chiŵerengero cha mphamvu chinali chachikulu kuposa 30.
2.2 Plasticizing melt spinning njira
Sungunulani kupota kumapangidwa ndi polima kusungunula ndi kusungunula kupota ndi extruding.Plasticized Sungunulani kupota ndi pamaziko a Sungunulani kupota, kuwonjezera mlingo woyenera wa diluent kwa polima Sungunulani kwa kupota, kudzera mapasa wononga osakaniza zosungunulira, ndiyeno extruded, ankawaviika mu m'zigawo wothandizila, ndiyeno mobwerezabwereza anatambasula potsiriza kupeza mphamvu mkulu. ndi high modulus polyethylene fiber.
2.3 High kuthamanga olimba boma extrusion njira
Mfundo ya kupanga extrusion ndi yakuti granular zosungunulira zosungunulira zimawonjezeredwa ku extruder, mbiya yakuthupi yomwe ili ndi zosungunulira zolimba imatenthedwa mpaka kutentha kusungunuka, kotero kuti zinthu zolimba zimasungunuka, chosungunuliracho chimatengedwa kupita kumutu wa makina ndi mawonekedwe osasunthika, ndiyeno pambuyo pozizira ndi kupanga, chomalizacho chimalimba.Mkulu kuthamanga olimba extrusion njira ndi pamaziko a extrusion kupanga mkulu kuthamanga kusungunuka, kupanga zosungunulira, ndiye kupyolera dzenje ndege, ndiyeno mkulu wamakokedwe, ndipo potsiriza kupeza mkulu maselo kulemera polyethylene.
2.4 Surface crystallization njira
Chifukwa chakukula pang'onopang'ono kwa kristalo wa fibrous, njirayi siigwiritsidwa ntchito kawirikawiri pokonzekera UHMWPE fiber.
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Nthawi yotumiza: Oct-14-2018