Rotomolding ita ce hanyar da aka fi so na samar da samfuran filastik da yawa da ake amfani da su a cikin rayuwarmu ta yau da kullun, kuma a zahiri shine ɗayan masana'antu mafi girma cikin sauri a masana'antar robobi a cikin shekaru goma da suka gabata.
Ba kamar sauran hanyoyin sarrafawa ba, matakan dumama, narkewa, gyare-gyare, da sanyaya matakan gyaran gyare-gyare na juyawa suna faruwa bayan an sanya polymer a cikin ƙirar, wanda ke nufin cewa ba a buƙatar matsa lamba na waje yayin aikin gyare-gyare.
Samfurin da kansa yawanci ana yin shi da simintin aluminum, injin aluminum na CNC, ko karfe. Idan aka kwatanta da gyare-gyaren da aka yi amfani da su a wasu hanyoyi (kamar allura ko gyare-gyaren gyare-gyare), ƙira ba su da tsada.
Tsarin gyare-gyaren jujjuyawar abu ne mai sauƙi, amma yana da matuƙar dacewa. Na farko, rami ya cika da polymer foda (an tattauna a cikin sashe na gaba).
Daga nan ana dumama tanda zuwa kusan 300°C (572°F) yayin da tanda ke juyawa akan gatari biyu don rarraba polymer daidai gwargwado. Babban ka'idar ita ce barbashin foda (yawanci game da 150-500 microns) za su haɗu tare don samar da samfurin da aka gama ci gaba. Sakamakon ƙarshe na samfurin ya dogara sosai akan girman ƙwayoyin foda.
A ƙarshe, ana sanyaya samfurin kuma an fitar da samfurin don kammalawa. Lokacin sake zagayowar ainihin tsarin rotomolding na iya bambanta daga mintuna 20 zuwa awa 1, ya danganta da girma da rikitarwar samfurin.
Dangane da samfurin ƙarshe da ake so, ana iya amfani da nau'ikan polymers na filastik daban-daban a cikin rotomolding.
Ɗayan filastik da aka fi amfani da shi shine polyethylene (PE) saboda yana iya jure yanayin zafi na dogon lokaci kuma yana da arha. Bugu da ƙari, ƙananan ƙarancin PE yana da sauƙi kuma yana da tsayayya ga fracturing.
Masu yin gyare-gyare kuma suna amfani da ethylene-butyl acrylate saboda wannan abu yana da juriya da ƙarfi a ƙananan yanayin zafi. Kamar yawancin thermoplastics, yana da ƙarin fa'ida na kasancewa mai sauƙin sakewa
Ko da yake polypropylene filastik ne da ake amfani da shi sosai, ba shine zaɓi na farko na masu yin gyare-gyare da yawa ba. Dalilin shi ne cewa wannan abu ya zama gaggautsa kusa da zafin jiki, don haka masana'antun suna da ɗan lokaci don siffanta samfurin.
Yawancin samfuran yau da kullun ana kera su ta amfani da hanyoyin gyare-gyaren juyi, kamar yadda ake keɓance samfuran. An ba da wasu misalai a ƙasa:
Rotomolding hanya ce mai matukar tasiri, wanda ke ba masana'antun ba kawai don samar da samfura masu ɗorewa ba tare da ƙarancin ƙira ba, har ma don samarwa cikin yanayin da ke da alaƙa da ƙarancin farashi. Bugu da ƙari, ana iya kera manyan kayayyaki cikin sauƙi ta hanyar tattalin arziki, tare da ɓarnatar da abubuwa kaɗan.
Ana iya saita Rotomolding da sauri, wanda zai iya saduwa da buƙatun da ba za a iya faɗi ba kuma ya haifar da ƙananan batches. Yana taimakawa wajen rage ƙima da yuwuwar sake ƙirƙira, yana mai da shi gabaɗaya arha idan aka kwatanta da masana'anta, fiberglass, allura, vacuum, ko hanyoyin gyare-gyare.
Ƙwararren gyare-gyaren juyawa shima yana ɗaya daga cikin manyan fa'idodinsa. Yana ba da damar samfura don ƙirƙirar ba tare da layukan weld na polymer ba, tare da yadudduka da yawa da salo daban-daban, launuka da ƙare saman. Rotomolding ba zai iya ɗaukar abubuwan da aka saka kawai ba, har ma tambura, ramuka, nozzles, shugabanni da ƙarin ayyuka don saduwa da ƙira da buƙatun injiniya. Bugu da kari, yin amfani da wannan hanya na iya samar da nau'ikan samfura daban-daban tare akan na'ura ɗaya.
Gary ya kammala karatun digiri a Jami'ar Manchester tare da digiri na farko a fannin ilimin kimiyyar geochemistry da digiri na biyu a fannin ilimin geosciences. Bayan ya yi aiki a masana'antar hakar ma'adinai ta Australiya, Gary ya yanke shawarar rataya takalminsa na geology kuma ya fara rubutu a maimakon haka. Lokacin da ba ya haɓaka abubuwan da ke cikin yanayi da bayanai, yawanci kuna iya ganin Gary yana wasa guitar ƙaunataccensa, ko kallon Aston Villa Football Club ya ci nasara da rashin nasara.
Rotating Process Machines, Inc. (Mayu 7, 2019). Rotomolding a cikin samar da filastik-hanyoyi, fa'idodi da aikace-aikace. AzoM. An dawo daga https://www.azom.com/article.aspx?ArticleID=8522 ranar 10 ga Disamba, 2021.
Juyawa Tsari Machines, Inc. "Juyawa Molding a Filastik Production-Hanyoyin, Amfani da Aikace-aikace". AzoM. Disamba 10, 2021.
Juyawa Tsari Machines, Inc. "Juyawa Molding a Filastik Production-Hanyoyin, Amfani da Aikace-aikace". AzoM. https://www.azom.com/article.aspx?ArticleID=8522. (An shiga ranar 10 ga Disamba, 2021).
Rotating Process Machines, Inc. 2019. Juyawa gyare-gyare a cikin samar da filastik-hanyoyin, fa'idodi da aikace-aikace. AZoM, duba ranar 10 ga Disamba, 2021, https://www.azom.com/article.aspx?ArticleID=8522.
A cikin wannan hirar, Dr.-Ing. Tobias Gustmann ya ba da haske mai amfani game da ƙalubalen binciken masana'antar ƙarafa.
AZoM da Farfesa Guihua Yu na Jami'ar Texas a Austin sun tattauna wani sabon nau'in takardar hydrogel wanda zai iya canza gurɓataccen ruwa cikin sauri zuwa ruwan sha mai tsafta. Wannan sabon tsari na iya yin babban tasiri kan rage ƙarancin ruwa a duniya.
A cikin wannan hirar, AZoM da Jurgen Schawe daga METTLER TOLEDO sun yi magana game da saurin duban guntu calorimetry da aikace-aikacen sa daban-daban.
MicroProf® DI kayan aikin dubawa na gani na gani don aikace-aikacen semiconductor na iya bincika ƙayyadaddun wafers da ba a tsara su ba cikin tsarin masana'antu.
StructureScan Mini XT shine ingantaccen kayan aiki don bincika kankare; yana iya daidai da sauri gano zurfin da matsayi na ƙarfe da abubuwan da ba na ƙarfe ba a cikin kankare.
Miniflex XpC shine diffractometer X-ray (XRD) wanda aka ƙera don sarrafa inganci a cikin tsire-tsire na siminti da sauran ayyukan da ke buƙatar sarrafa tsarin kan layi (kamar magunguna da batura).
Wani sabon bincike a cikin Haruffa Physics na kasar Sin ya binciki babban aiki tare da cajin raƙuman ruwa mai yawa a cikin kayan Layer guda ɗaya waɗanda aka girma akan abubuwan graphene.
Wannan labarin zai bincika sabuwar hanyar da ke ba da damar tsara nanomaterials tare da daidaiton ƙasa da nm 10.
Wannan labarin ya ba da rahoto game da shirye-shiryen BCNTs na roba ta hanyar jigilar sinadarai na thermal (CVD), wanda ke haifar da saurin caji tsakanin lantarki da electrolyte.
Lokacin aikawa: Dec-10-2021