I-polypropylene enwetshiwe (i-EPP ngamafuphi) iyizinhlayiyana zegwebu le-thermoplastic elikhanyayo kakhulu, elivaliwe elisekelwe kugwebu lwe-polypropylene.Imnyama, ebomvana noma emhlophe, futhi ububanzi ngokuvamile buphakathi kuka-φ2 no-7mm.Ubuhlalu be-EPP bakhiwe izigaba ezimbili, okuqinile negesi.Ngokuvamile, isigaba esiqinile sithatha kuphela u-2% kuya ku-10% wesisindo esiphelele, kanti okunye kuyigesi.Ububanzi obuncane bokuminyana bungama-20-200 kg/m3.Ikakhulukazi, isisindo se-EPP silula kunaleso se-polyurethane foam ngaphansi komphumela ofanayo wokumunca amandla.Ngakho-ke, izingxenye zegwebu ezenziwe ngobuhlalu be-EPP zinesisindo esincane, zinokumelana nokushisa okuhle, izakhiwo ezinhle zokugoba kanye nezakhiwo ezinhle kakhulu zemishini, futhi zingonakaliswa ngo-100% futhi zigaywa kabusha.Zonke lezi zinzuzo zenza i-EPP ibe enye yezinto ezisetshenziswa kakhulu emikhakheni eminingi, kuzo zonke izici zokuphila kwethu:
Emkhakheni wezimoto, i-EPP iyisixazululo esingcono kakhulu sokuzuza izingxenye ezingasindi, ezifana nobhampa, izinsimbi ze-A-pillar, izingxenye zezimoto ezishaqisayo eziseceleni kwezimoto, izinsimbi zokushaqeka kweminyango yezimoto, izihlalo zemoto zokuphepha ezithuthukisiwe, amabhokisi amathuluzi, imithwalo, Izingalo, izinto ezifakwe foamed polypropylene ingasetshenziselwa izingxenye ezinjengamapuleti angaphansi, ama-visor welanga, amaphaneli amathuluzi, njll. /imoto, enganciphisa isisindo sezimoto kufika ku-10%.
Emkhakheni wokupakisha, iziqukathi zokupakisha ezisebenziseka kabusha nezizokuthutha ezenziwe nge-EPP zinezici zokulondoloza ukushisa, ukumelana nokushisa, ukumelana nokugqwala, ukufakwa kwe-insulation, impilo ende yesevisi, njll., aziqukethe izinto eziphilayo eziguquguqukayo, futhi aziqukethe izinto ezilodwa ziyingozi kungqimba lwe-ozone noma izinsimbi ezisindayo Ukupakishwa kwempahla, kugayeka ukudla ngemva kokushisa, 100% kunobungani bemvelo.Noma ngabe izingxenye ze-elekthronikhi ezinembayo, noma ukuthuthwa kokudla okunjengezithelo, inyama eqandisiwe, u-ayisikhilimu, njll., igwebu le-polypropylene elinwetshiwe lingasetshenziswa.Ngokusho kokuhlolwa kwezinga lokucindezela kwe-BASF, i-EPP ingafinyelela njalo imijikelezo yokuthunyelwa engaphezu kwe-100, esindisa kakhulu izinto zokwakha futhi inciphise izindleko zokupakisha.
Ngaphezu kwalokho, i-EPP inokumelana nokushaqeka okuhle kakhulu nokusebenza kokumunca amandla, futhi isetshenziswa kabanzi ekukhiqizeni izihlalo zokuphepha zezingane, ishintsha izingxenye zepulasitiki eziqinile ne-polystyrene yendabuko, futhi isize yaba into ekhethwayo yezidingo zansuku zonke zasekhaya ezihambisana nemvelo.
Isihlalo sezingane esakhiwe nguKarwala ngokubambisana ne-KNOF Industries.Lesi yisihlalo sokuphepha sezingane esilula kunazo zonke emakethe, esithutha izingane ezisebangeni lika-0-13kg futhi zinesisindo esingu-2.5kg kuphela, okungaphansi ngo-40% kunomkhiqizo wamanje osemakethe.
Ngaphandle kobubanzi obunjalo bezinhlelo zokusebenza, asivamile ukukubona.Kungani lokhu kunjalo?Ngoba esikhathini esidlule, ingaphezulu lezingxenye eziningi zegwebu le-EPP ezisebenzisa isikhunta kanye nobuchwepheshe bokubumba izinhlayiyana eziqondile zazingajabulisi ngobuhle futhi zazivame ukufihlwa ngemuva kwezinto ezifana nensimbi, insimbi, isipontshi, igwebu, izindwangu kanye nesikhumba.Iminyaka eminingi, kuye kwenziwa imizamo yokuthuthukisa ikhwalithi ephezulu yezingxenye zezinhlayiya zegwebu ezikhiqizwe ezijwayelekile ngokungeza ukuthungwa ngaphakathi kwemishini yokubumba.Ngeshwa, lokhu kuvame ukuholela emazingeni aphezulu e-scrap.Ukubunjwa komjovo kuthathwa njengenqubo ephusile okwesikhashana, kodwa imikhiqizo yayo ayilungile ngokwesisindo esilula, ukumuncwa kwamandla kanye nokwahlukanisa.
Ukuze wenze ubuso bezinhlayiya ze-foam zibe ngcono, ungakhetha futhi ukusebenzisa ubuchwepheshe bokucubungula i-laser ngemva kokwakhiwa kwezingxenye, noma wenze ukwelashwa kwe-lamination ukuze uthole izitayela ezahlukene zokuthungwa.Kodwa ukucubungula kwangemuva kuphinde kusho ukusetshenziswa kwamandla okwengeziwe, okuphinde kuthinte ukugaywa kabusha kwe-EPP.
Kulo mongo, i-T.Michel GmbH, kanye nabakhiqizi abaningi abaphezulu bempahla nemishini embonini, yethula ubuchwepheshe be-"In-Mold Foamed Particle Coating" (IMPFC), obufutha ngesikhathi esifanayo nokubunjwa.Le nqubo isebenzisa inqubo ye-THERMO SELECT ka-kurtz Ersa, elungisa ngazinye izindawo zokushisa zesikhunta, okuholela engxenyeni yekhwalithi ephezulu enokuncipha okuphansi kakhulu.Lokhu kusho ukuthi ukubunjwa okukhiqizwa kungenziwa ngokweqile ngokushesha.Lokhu kwenza futhi ukufutha kanyekanye.Ukugqoka okufafaziwe kuzokhetha i-polymer enesakhiwo esifanayo nezinhlayiya ze-foam, isibonelo, i-EPP ihambisana ne-sp sprayed.Ngenxa yenhlanganisela yesakhiwo songqimba olulodwa, izingxenye zegwebu ezikhiqiziwe zingaphinda zisetshenziswe ngo-100%.
Isibhamu sesifutho sezinga lezimboni esivela e-Nordson esihlakaza upende ku-uniform kanye namaconsi amahle ukuze kusetshenziswe okunembe nangempumelelo izendlalelo zangaphakathi zesikhunta.Ubukhulu obukhulu be-coating bungafinyelela ku-1.4 mm.Ukusetshenziswa kokugqoka kwenza kube lula ukukhetha umbala nokuthungwa kwezingxenye ezibunjiwe, futhi kunikeza isikhala esikhulu sokwanda noma ukuguqulwa kokusebenza kwendawo.Isibonelo, i-PP enamathela ingasetshenziselwa igwebu le-EPP.Iletha ukumelana okuhle kwe-UV.
Ubukhulu be-coating bufika ku-1.4 mm.Uma kuqhathaniswa nokubumba umjovo, ubuchwepheshe be-IMPFC bukhiqiza izingxenye ezibunjiwe ezilula ngamaphesenti angaphezu kuka-60.Ngale ndlela, ukubunjwa okwenziwe ngezinhlayiya zegwebu kuhlanganise ne-EPP kuzoba nethemba elibanzi.
Isibonelo, imikhiqizo ye-EPP yegwebu ngeke isafihlwa ngemuva kwezinye izinto noma isongwe ngezinye izinto esikhathini esizayo, kodwa izobonisa ukukhanga kwayo ngokusobala.Futhi, ngesidingo esikhulayo sezimoto zikagesi eminyakeni yamuva kanye nokuthambekela okuhle kwabathengi abasuka ezimotweni zendabuko baye ezimotweni zikagesi (ngokusho kwe-International Energy Agency, ukuthengiswa kwezimoto zikagesi emhlabeni wonke kulindeleke ukuthi kufinyelele kumayunithi ayizigidi eziyi-125 ngo-2030. Ngo-2030, I-China kulindeleke ukuthi ithengise izimoto ezingaba ngu-70% kube ngama-EVs), okuzodala amathuba amaningi emakethe ye-EPP.Izimoto zizoba yimakethe enkulu kunazo zonke yezicelo ze-EPP.Ngokungeziwe ekuboneni ukuguqulwa nokuthuthukiswa kwezingxenye zezimoto ezikhona kanye nemihlangano yazo, i-EPP izophinde isetshenziswe ezingxenyeni eziningi ezisanda kuthuthukiswa, okuhlanganisa kodwa kungagcini nje:
Ngokuzayo, i-EPP izoqhubeka idlala indima ebalulekile ekukhanyeni kwezinto ezibonakalayo, ukufakwa kokushisa, ukumuncwa kwamandla, njll. ngenxa yohlu olubanzi lwezakhiwo ezinhle ezingenakuhlangatshezwana nanoma iyiphi enye inhlanganisela yezinto: izindleko eziphansi, izakhiwo ezinhle kakhulu zemishini, ukwakheka okuhle, ubungane bemvelo, njll. umphumela.
Isikhathi sokuthumela: Aug-05-2022