Rotomolding ndiye njira yabwino yopangira zinthu zambiri zapulasitiki zopanda kanthu zomwe zimagwiritsidwa ntchito m'moyo wathu watsiku ndi tsiku, ndipo ndi imodzi mwamafakitale omwe akukula mwachangu m'makampani apulasitiki mzaka khumi zapitazi.
Mosiyana ndi njira zina zopangira, kutentha, kusungunula, kuumba, ndi kuzizira kwa kuumba kozungulira kumachitika polima atayikidwa mu nkhungu, zomwe zikutanthauza kuti palibe kukakamiza kwakunja komwe kumafunika panthawi yopangira.
Chikombolecho nthawi zambiri chimapangidwa ndi aluminiyamu yotayidwa, CNC yopangidwa ndi aluminium, kapena chitsulo. Poyerekeza ndi nkhungu zomwe zimagwiritsidwa ntchito m'njira zina (monga jekeseni kapena kuwombera), nkhungu zimakhala zotsika mtengo.
Njira yozungulira yozungulira ndiyosavuta, koma imasinthasintha kwambiri. Choyamba, patsekeke amadzazidwa ndi ufa polima (kukambidwa mu gawo lotsatira).
Uvuni umatenthedwa mpaka 300 ° C (572 ° F) pomwe nkhungu imazungulira pa nkhwangwa ziwiri kuti igawane polima. Mfundo yayikulu ndi yakuti tinthu tating'onoting'ono ta ufa (nthawi zambiri pafupifupi 150-500 microns) timaphatikizana kuti tipange chinthu chomalizidwa mosalekeza. Chotsatira chomaliza cha mankhwalawa chimadalira kwambiri kukula kwa tinthu ta ufa.
Pomaliza, nkhunguyo imakhazikika ndipo mankhwalawa amachotsedwa kuti amalize. Nthawi yozungulira yoyambira rotomolding imatha kusiyana ndi mphindi 20 mpaka 1 ola, kutengera kukula ndi zovuta za mankhwalawa.
Kutengera chomaliza chomwe mukufuna, mitundu yosiyanasiyana ya ma polima apulasitiki angagwiritsidwe ntchito popanga rotomolding.
Pulasitiki imodzi yomwe imagwiritsidwa ntchito kwambiri ndi polyethylene (PE) chifukwa imatha kupirira kutentha kwa nthawi yayitali komanso yotsika mtengo. Kuphatikiza apo, PE yotsika kwambiri ndi yosinthika komanso yosagwirizana ndi fracturing.
Opanga nkhungu amagwiritsanso ntchito ethylene-butyl acrylate chifukwa zinthuzi zimakhala ndi mphamvu yolimbana ndi ming'alu ndi mphamvu pakatentha pang'ono. Monga ma thermoplastics ambiri, ili ndi mwayi wowonjezera wosavuta kukonzanso
Ngakhale kuti polypropylene ndi pulasitiki yogwiritsidwa ntchito kwambiri, sichosankha choyamba cha opanga nkhungu ambiri. Chifukwa chake ndi chakuti nkhaniyi imakhala yowonongeka pafupi ndi kutentha kwa chipinda, kotero opanga amakhala ndi nthawi yochepa yopangira mankhwala.
Zinthu zambiri zatsiku ndi tsiku zimapangidwa pogwiritsa ntchito njira zozungulira, monganso zida zosinthidwa makonda. Zitsanzo zina zaperekedwa pansipa:
Rotomolding ndi njira yabwino kwambiri yopangira, yomwe imalola opanga kuti asamangopanga zinthu zolimba kwambiri zokhala ndi zoletsa zochepa, komanso kuti azipanga mwachilengedwe pamtengo wotsika. Kuphatikiza apo, zinthu zazikuluzikulu zitha kupangidwa mosavuta m'njira yandalama, ndikuwonongeka pang'ono.
Rotomolding imatha kukhazikitsidwa mwachangu, yomwe imatha kukwaniritsa zosowa zosayembekezereka ndikutulutsa m'magulu ang'onoang'ono. Zimathandizira kuchepetsa kuwerengera komanso kubwezeredwa kwa zinthu zomwe zingatheke, zomwe zimapangitsa kuti zikhale zotsika mtengo poyerekeza ndi kupanga, fiberglass, jakisoni, vacuum, kapena njira zowumba.
Kusinthasintha kwa kuumba kozungulira ndi chimodzi mwazabwino zake zazikulu. Imathandizira kuti zinthu zipangidwe popanda mizere yowotcherera ya polima, yokhala ndi zigawo zingapo ndi masitayelo osiyanasiyana, mitundu ndi kumaliza kwake. Rotomolding sangangotengera zoyikapo, komanso ma logo, ma grooves, nozzles, mabwana ndi ntchito zina kuti zikwaniritse zofunikira zamapangidwe ndi uinjiniya. Kuphatikiza apo, kugwiritsa ntchito njirayi kumatha kupanga mitundu yosiyanasiyana yazogulitsa palimodzi pamakina amodzi.
Gary anamaliza maphunziro awo ku yunivesite ya Manchester ndi digiri yoyamba ya honors mu geochemistry ndi masters mu geoscience. Atagwira ntchito ku migodi ya ku Australia, Gary anaganiza zopachika nsapato zake za geology ndikuyamba kulemba. Akapanda kupanga zankhani komanso zazidziwitso, nthawi zambiri mumatha kuwona Gary akusewera gitala lomwe amamukonda, kapena kuwonera Aston Villa Football Club ikupambana ndikuluza.
Rotating Process Machines, Inc. (Meyi 7, 2019). Rotomolding mu kupanga pulasitiki-njira, ubwino ndi ntchito. AZoM. Kutengedwa kuchokera ku https://www.azom.com/article.aspx?ArticleID=8522 pa Disembala 10, 2021.
Rotating Process Machines, Inc. "Kumangirira Kuzungulira mu Pulasitiki Kupanga-Njira, Ubwino ndi Ntchito". AZoM. Disembala 10, 2021.
Rotating Process Machines, Inc. "Kumangirira Kuzungulira mu Pulasitiki Kupanga-Njira, Ubwino ndi Ntchito". AZoM. https://www.azom.com/article.aspx?ArticleID=8522. (Idapezeka pa Disembala 10, 2021).
Rotating Process Machines, Inc. 2019. Kujambula kozungulira mu njira zopangira pulasitiki-njira, ubwino ndi ntchito. AZoM, idawonedwa pa Disembala 10, 2021, https://www.azom.com/article.aspx?ArticleID=8522.
Poyankhulana izi, Dr.-Ing. Tobias Gustmann anapereka zidziwitso zothandiza pazovuta za kafukufuku wopangira zitsulo.
AZoM ndi Pulofesa Guihua Yu wa yunivesite ya Texas ku Austin anakambirana za mtundu watsopano wa pepala la hydrogel lomwe lingathe kusintha mwamsanga madzi oipitsidwa kukhala madzi akumwa abwino. Njira yatsopanoyi ingakhale ndi chiyambukiro chachikulu pakuchepetsa kuchepa kwa madzi padziko lonse lapansi.
M'mafunsowa, AZoM ndi Jurgen Schawe ochokera ku METTLER TOLEDO adalankhula za kusanthula mwachangu chip calorimetry ndi ntchito zake zosiyanasiyana.
Zida zowunikira za MicroProf® DI zowunikira pa semiconductor zimatha kuyang'ana zowotcha zosasinthika panthawi yonse yopanga.
StructureScan Mini XT ndiye chida chabwino kwambiri chowonera konkriti; imatha kuzindikira molondola komanso mwachangu kuya ndi malo azinthu zachitsulo komanso zopanda zitsulo mu konkire.
Miniflex XpC ndi X-ray diffractometer (XRD) yopangidwa kuti ikhale yolamulira bwino m'mafakitale a simenti ndi ntchito zina zomwe zimafuna kuyang'anira ndondomeko ya intaneti (monga mankhwala ndi mabatire).
Kafukufuku watsopano ku China Physics Letters adafufuza za superconductivity ndi mafunde a kachulukidwe kachulukidwe muzinthu zosanjikiza chimodzi zomwe zimamera pagawo la graphene.
Nkhaniyi ifufuza njira yatsopano yomwe imapangitsa kuti zitheke kupanga ma nanomatadium molondola osakwana 10 nm.
Nkhaniyi lipoti za yokonza kupanga BCNTs ndi chothandizira matenthedwe mankhwala nthunzi mafunsidwe (CVD), amene amatsogolera mofulumira mlandu kutengerapo pakati elekitirodi ndi electrolyte.
Nthawi yotumiza: Dec-10-2021