Poyambirira amayang'ana makamaka extrusion, zosankha zatsopano zopangira matabwa-pulasitiki zakonzedwa kuti zitsegule zitseko zopangira jekeseni.
Popanga ma WPC, pellet yoyenera iyenera kukhala yofanana ndi BB yaying'ono ndikuzunguliridwa kuti ikwaniritse chiyerekezo chapamwamba-pa-voliyumu.
Luke's Toy Factory, Danbury, Conn., anali kuyang'ana zida za biocomposite zamagalimoto ake osewerera ndi masitima apamtunda.Kampaniyo inkafuna chinthu chokhala ndi mawonekedwe amatabwa achilengedwe komanso kumva kuti chitha kupangidwanso jekeseni kuti apange mbali zagalimotoyo.Ankafunika zinthu zopaka utoto kuti apewe vuto la kusenda utoto.Ankafunanso chinthu cholimba ngakhale atasiyidwa panja.Green Dot's Terratek WC imakwaniritsa zofunikira zonsezi.Amaphatikiza matabwa ndi pulasitiki yokonzedwanso mu kabokosi kakang'ono kamene kali koyenera kupanga jekeseni.
Ngakhale ma composites a matabwa a pulasitiki (WPCs) adasweka m'zaka za m'ma 1990 monga zida zomwe zidatulutsidwa m'ma matabwa okhomerera ndikutchingira mipanda, kukhathamiritsa kwa zidazi zomangira jakisoni kuyambira pamenepo kwasinthiratu kugwiritsa ntchito kwawo ngati zida zolimba komanso zokhazikika.Kusamalira chilengedwe ndi gawo lokongola la ma WPC.Amabwera ndi mawonekedwe otsika kwambiri a kaboni kuposa zida zopangira mafuta ndipo amatha kupangidwa pogwiritsa ntchito ulusi wamatabwa wongotengedwanso.
Zosankha zambiri zamtundu wa WPC zikutsegula mwayi watsopano wazoumba.Zakudya zapulasitiki zobwezerezedwanso komanso zowonongeka zimatha kupititsa patsogolo kukhazikika kwazinthuzi.Pali kuchuluka kwa zosankha zokongoletsa, zomwe zitha kusinthidwa ndikusinthasintha mitundu yamitengo ndi kukula kwa tinthu tating'ono mu kompositi.Mwachidule, kukhathamiritsa kwa jekeseni ndi mndandanda womwe ukukula wa zosankha zomwe zimapezeka kwa ophatikizira zikutanthauza kuti ma WPC ndi zinthu zosunthika kwambiri kuposa momwe amaganizira kale.
ZOYENERA KUYEMBEKEZERA ZINTHU ZOYENERA KUCHOKERA KWA OTHANDIZA Mafakitale ambiri tsopano akupereka ma WPC amtundu wa pellet.Ma jekeseni opangira jekeseni ayenera kukhala ozindikira paziyembekezo zochokera kumagulu awiri makamaka: kukula kwa pellets ndi chinyezi.
Mosiyana ndi extruding WPCs decking ndi mipanda, yunifolomu pellet kukula ngakhale kusungunuka n'kofunika akamaumba.Popeza extruders alibe nkhawa kudzaza WPC awo mu nkhungu, kufunika yunifolomu pellet kukula si waukulu.Chifukwa chake, ndikofunikira kuwonetsetsa kuti chophatikizira chili ndi zofunikira za jekeseni m'maganizo, ndipo sichimangoyang'ana kwambiri zomwe zidayamba kugwiritsidwa ntchito pa WPCs.
Ma pellets akakula kwambiri amakhala ndi chizolowezi chosungunuka mosiyanasiyana, kupanga kukangana kwina, ndipo kumapangitsa kuti pakhale chinthu chochepa kwambiri chomaliza.Pellet yabwino iyenera kukhala yofanana ndi BB yaying'ono ndikuzungulira kuti ikwaniritse chiŵerengero chapamwamba cha voliyumu.Miyeso iyi imathandizira kuyanika komanso kumathandizira kuti pakhale kuyenda bwino panthawi yonse yopangira.Ma jekeseni opangira jekeseni omwe amagwira ntchito ndi ma WPC ayenera kuyembekezera mawonekedwe ndi kufanana komwe amagwirizanitsa ndi mapepala apulasitiki achikhalidwe.
Kuyanikanso ndi khalidwe lofunika kuyembekezera kuchokera ku ma pellets a WPC ophatikizira.Kuchuluka kwa chinyontho mu WPC kudzawonjezeka pamodzi ndi kuchuluka kwa zodzaza matabwa mu kompositi.Ngakhale kuumba ndi jekeseni kumafunika chinyezi chochepa kuti pakhale zotsatira zabwino, chinyezi chovomerezeka ndi chotsika pang'ono popanga jakisoni kusiyana ndi kutulutsa.Chifukwa chake, ndikofunikira kutsimikizira kuti chophatikizira chaganizira za jekeseni popanga.Popanga jakisoni, chinyezi chikuyenera kukhala chochepera 1% kuti mupeze zotsatira zabwino.
Pamene ogulitsa adzikakamiza kuti apereke mankhwala omwe ali ndi chinyezi chovomerezeka, opangira jakisoni amawononga nthawi yochepa poyanika ma pellets okha, zomwe zingapangitse kuti nthawi ndi ndalama zisungidwe.Majekete a jekeseni ayenera kuganizira zogula ma pellets a WPC otumizidwa ndi opanga omwe ali ndi chinyezi chocheperapo 1%.
ZOGWIRITSA NTCHITO ZOYENERA KUKHALA NDI ZOTHANDIZA Chiŵerengero cha nkhuni ndi pulasitiki mu mawonekedwe a WPC chidzakhala ndi zotsatira pa khalidwe lake pamene ikudutsa mukupanga.Kuchuluka kwa nkhuni zomwe zili mu kompositizi zidzakhala ndi zotsatira pa melt-flow index (MFI), mwachitsanzo.Monga lamulo, nkhuni zambiri zomwe zimawonjezeredwa kumagulu, zimachepetsa MFI.
Kuchuluka kwa nkhuni kudzakhudzanso mphamvu ndi kuuma kwa mankhwala.Nthawi zambiri, matabwa omwe amawonjezedwa kwambiri, mankhwalawo amakhala olimba.Mitengo imatha kupanga 70% yazinthu zonse zamatabwa zapulasitiki, koma kuuma kwake kumabwera chifukwa cha ductility ya chinthu chomaliza, mpaka pomwe chikhoza kukhala pachiwopsezo chokhala brittle.
Kuchuluka kwa nkhuni kumafupikitsa nthawi yozungulira makina powonjezera chinthu chokhazikika pagulu lapulasitiki lamatabwa pamene limazizira mu nkhungu.Kulimbikitsidwa kwachipangidwe kumeneku kumapangitsa kuti pulasitiki ichotsedwe pa kutentha kwakukulu kumene mapulasitiki ochiritsira akadali ofewa kwambiri kuti achotsedwe ku nkhungu zawo.
Ngati mankhwalawa adzapangidwa pogwiritsa ntchito zida zomwe zilipo, kukula kwa chipata ndi mawonekedwe ambiri a nkhungu ayenera kukambirana za kukula kwa nkhuni-tinthu.Tinthu tating'onoting'ono titha kugwiritsa ntchito bwino zida zokhala ndi zipata zazing'ono komanso zowonjezera zopapatiza.Ngati zinthu zina zapangitsa kuti opanga akhazikike pamtengo wokulirapo wa tinthu tating'ono, ndiye kuti zingakhale zopindulitsa kukonzanso zida zomwe zilipo kale.Koma, poganizira zosankha zomwe zilipo zamitundu yosiyanasiyana ya tinthu, izi ziyenera kupewedwa.
KUSENGA WPCs Kukonzekera kwapadera kumakhalanso ndi chizolowezi chosinthasintha kwambiri potengera kupangidwa komaliza kwa pellets za WPC.Ngakhale kuti kukonza zambiri kumakhalabe kofanana ndi mapulasitiki achikhalidwe, mitengo yeniyeni ndi pulasitiki ndi zowonjezera zina zomwe zimatanthauzidwa kuti zikwaniritse maonekedwe, maonekedwe, kapena machitidwe omwe amafunidwa angafunikire kuwerengedwa pokonza.
Ma WPC amagwirizananso ndi zinthu zotulutsa thovu, mwachitsanzo.Kuphatikiza kwa zinthu zotulutsa thovuzi zitha kupanga zinthu ngati balsa.Ichi ndi chinthu chothandiza pamene chomalizidwa chiyenera kukhala chopepuka kwambiri kapena chowoneka bwino.Pa cholinga cha jekeseni, komabe, ichi ndi chitsanzo chinanso cha momwe mitundu yosiyanasiyana ya matabwa ndi pulasitiki ingapangire kuti pakhale zambiri zoganiziridwa kuposa pamene zipangizozi zinayamba kugulitsidwa.
Kutentha kwa kutentha ndi gawo limodzi pomwe ma WPC amasiyana kwambiri ndi mapulasitiki wamba.Ma WPC nthawi zambiri amakonza pa kutentha pafupifupi 50 ° F kutsika kuposa zinthu zomwezo zosadzazidwa.Zowonjezera zambiri za nkhuni zidzayamba kutentha pafupifupi 400 F.
Kumeta ubweya ndi imodzi mwazinthu zomwe zimafala kwambiri pokonza ma WPC.Mukakankhira chinthu chomwe chatentha kwambiri kudzera pachipata chaching'ono, kukangana kowonjezereka kumakonda kuwotcha nkhuni ndikupangitsa kuti zisawonongeke ndipo zimatha kuwononga pulasitiki.Vutoli litha kupewedwa poyendetsa ma WPC pa kutentha pang'ono, kuonetsetsa kuti kukula kwa chipata ndikokwanira, ndikuchotsa kutembenuka kosafunika kapena ngodya zolondola panjira yopangira.
Kutentha kocheperako kumatanthawuza kuti opanga safuna kuti azitha kutentha kwambiri kuposa polypropylene yachikhalidwe.Izi zimachepetsa ntchito yovuta yochotsa kutentha pakupanga.Palibe chifukwa chowonjezera zida zoziziritsira zamakina, nkhungu zomwe zimapangidwira kuchepetsa kutentha, kapena njira zina zodabwitsa.Izi zikutanthawuza kuchepetsa nthawi yozungulira kwa opanga, pamwamba pa nthawi yozungulira kale chifukwa cha kupezeka kwa zodzaza organic.
OSATI ZOKHALA ZOKHALA WPCs sizongopanganso.Akukometsedwa kuti apangidwe jakisoni, zomwe zikuwatsegulira kuzinthu zambiri zatsopano, kuchokera pamipando ya kapinga mpaka zoseweretsa za ziweto.Mapangidwe osiyanasiyana omwe alipo tsopano atha kupititsa patsogolo ubwino wa zipangizozi malinga ndi kukhazikika, kukongola kwamitundu yosiyanasiyana, ndi mawonekedwe monga buoyancy kapena kusasunthika.Kufuna kwa zinthu izi kudzangowonjezereka pamene phinduli likudziwika bwino.
Kwa ma jekeseni opangira jekeseni, izi zikutanthauza kuti mitundu ingapo yamtundu uliwonse iyenera kuwerengedwa.Koma zimatanthauzanso kuti oumba ayenera kuyembekezera chinthu chomwe chili choyenera kuumba jekeseni kusiyana ndi feedstock yomwe idasankhidwa kuti itulutsidwe m'magulu.Pamene zidazi zikupitilira kukula, zowumba jekeseni ziyenera kukweza mikhalidwe yomwe amayembekeza kuwona muzophatikizika zomwe zimaperekedwa ndi ogulitsa awo.
Ozizira mbamuikha-mu ulusi amaika amapereka olimba ndi mtengo njira zina kutentha staking kapena ultrasonically anaika ulusi amaika.Dziwani zabwino zake ndikuwona zikugwira ntchito pano.(Zolipirira)
Yambani posankha kutentha komwe mukufuna kusungunula, ndikuwunikanso kawiri mapepala amalingaliro a omwe amapereka utomoni.Tsopano kwa ena...
Nthawi yotumiza: Aug-06-2019