Kodi munayamba mwadzifunsapo kuti zinthu zapulasitiki zowoneka bwino komanso zowoneka bwino zimapangidwira bwanji molondola komanso momveka bwino? Chabwino, yankho liri m'dziko losangalatsa la jekeseni wa PMMA. Mubulogu iyi, tikhala tikulowa m'njira zatsopano zopangira jekeseni wa PMMA, ndikuwunika momwe zasinthira makampani opanga zinthu ndi kagwiritsidwe ntchito kake.

Chifukwa chake, khalani olimba pamene tikukuyendetsani paulendo wodutsa dera la PMMA ndikupeza momwe zida zosunthikazi zimapangidwira tsogolo la kupanga pulasitiki.

PMMA ndi chiyani?

Polymethyl methacrylate, yotchedwa PMMA, ndi polima, yomwe imadziwikanso kuti acrylic kapena plexiglass.

Acrylic acid ndi ma polymerization ake ozizira a ma polima omwe amapezeka pamodzi amatchedwa viniga wa acrylic tree, mapulasitiki ofanana omwe amadziwika kuti polyacrylic acid mapulasitiki, omwe polymethyl methacrylate ndi omwe amagwiritsidwa ntchito kwambiri.

Mbiri ya PMMA Material Properties

Monga thermoplastic yofunika kwambiri yomwe idapangidwa kale, PMMA ili ndi ubwino wowonekera kwambiri, mtengo wotsika, makina osavuta, etc. Imakondwera ndi mbiri ya "Queen of Plastics", ndipo ili ndi ntchito zambiri zogwirira ntchito zomangamanga.

Zopanda utoto komanso zowoneka bwino, kufalikira kwamphamvu kwa 90% -92%, kulimba, kukulira nthawi 10 kuposa galasi la silika.

Optics yabwino, kutsekereza, processability ndi kukana nyengo.

Imasungunuka mu zosungunulira za organic monga carbon tetrachloride, benzene, toluene, dichloroethane, trichloromethane ndi acetone.

Iwo zimaonetsa maonekera mkulu ndi kuwala, kukana wabwino kutentha, ndi kulimba, kuuma, makhalidwe rigidity, kutentha kupotoza kutentha 80 ℃, kupinda mphamvu 110Mpa.

Kachulukidwe 1.15 - 1.19 g/cm³, deformation kutentha 76-116 ℃, akamaumba shrinkage 0.2-0.8%.

Linear expansion coefficient 0.00005-0.00009/°C, kutentha kupotoza kutentha 68-69°C (74-107°C).Kodi PMMA Injection Molding ndi chiyani?

Poly(mеthyl mеthacrylateе), yomwe imadziwika kuti PMMA, ndi yopepuka komanso yowoneka bwino ya thеrmoplastic polima yomwe yatchuka kwambiri m'mafakitale osiyanasiyana. Kutha kwake kutsanzira magalasi pomwe imakhala yopepuka komanso yosasunthika kumapangitsa kukhala chisankho chabwino pamapulogalamu angapo.

Kuumba jekeseni kwa PMMA ndi njira yolondola komanso yothandiza yopangira jekeseni yomwe imaphatikizapo kubaya PMMA yosungunula mu nkhungu zokhazikika pansi pa chitsimikizo chapamwamba, zomwe zimapangitsa kuti pakhale mitundu yambiri yazinthu zomveka bwino komanso zowoneka bwino.

Chifukwa chiyani PMMA kapena Acrylic Amagwiritsidwa Ntchito Kwambiri Popanga Jakisoni?

Polymethylmethacrylate (PMMA) kapena acrylic ndi thermoplastic yamphamvu, yomveka bwino, yowoneka bwino kwambiri yokhala ndi kuwala kowoneka bwino komwe imagwiritsidwa ntchito ngati m'malo mwa galasi.

Poyerekeza ndi jekeseni wa polycarbonate, kuumba kwa jekeseni wa PMMA ndikotsika mtengo ndipo kumathandizira kuumba kwa acrylics. Zotsatira zake, zida za PMMA zimayamikiridwanso ndi makampani opanga zopangira ma prototyping.

Panthawi imodzimodziyo, ma acrylics ali ndi mphamvu zowonongeka kwambiri, amatha kupirira katundu, samayamwa fungo, ndipo amatha kupirira molimba panthawi ya jekeseni.

M'nyengo yadzuwa ndi mvula, PMMA imagonjetsedwa ndi kuwala kwa UV ndipo, ikakumana ndi madzi, imakhalabe yokhazikika ndipo sichitulutsa bisphenol A (BPA), mankhwala omwe amapezeka m'mapulasitiki ambiri omwe amakhudza kwambiri thanzi la munthu, kuti akhale oyenera ntchito zakunja.

Ponseponse, kuyanjana pakati pa PMMA ndi njira zopangira jekeseni ndizopadera, kupereka njira yopangira jekeseni wachuma pamene mukupanga zinthu zapamwamba kwambiri.

Mkhalidwe Wa PMMA Injection Molding Processing

Mu njira yopangira jekeseni ya PMMA, ufa kapena ma granules amatenthedwa mpaka kusungunuka ndikulowetsedwa mu nkhungu pansi pa kupanikizika kwakukulu. Pambuyo pozizira ndikuyika, nkhunguyo imachotsedwa, zomwe zimapangitsa kuti pakhale mankhwala opangira PMMA.

 

Ubwino wa PMMA Injection Molding

Kuumba jekeseni kwa PMMA kumapereka maubwino ambiri, kupangitsa kuti ikhale yofunidwa kwambiri pazinthu zosiyanasiyana. Tiyeni tiwunikire zabwino izi mwatsatanetsatane:

●Kuwala Kwambiri

Chimodzi mwazinthu zochititsa chidwi kwambiri za PMMA ndikumveka bwino kwapadera. Poyerekeza ndi zida zina, PMMA imapereka kuwonekera kosayerekezeka, magalasi owoneka bwino koma opanda kulemera. Chikhalidwe ichi chimapangitsa kukhala chisankho choyenera pazinthu zomwe zimawonekera bwino ndizofunikira.

Kaya ndi magalasi akumaso, makamera a makamera, kapena zophimba zamagalimoto, PMMA imatsimikizira kuwoneka bwino, kupititsa patsogolo luso la ogwiritsa ntchito ndi luso lazogulitsa.

●Zopepuka komanso Zosagwirizana ndi Impact

Chilengedwe chopepuka cha PMMA chimasiyanitsa ndi galasi lachikhalidwe.

Katunduyu amapangitsa kuti ikhale yofunikira kwambiri pamapulogalamu omwe ali ndi kulemera kwake, monga zigawo za aеrospace ndi zida zamankhwala. Kuphatikiza apo, katundu wake wosasunthika amachepetsa chiopsezo chosokonekera pakachitika ngozi, kukonza chitetezo m'malo osiyanasiyana.

●UV ndi Wеeather Resistance

PMMA imadziwika chifukwa cha kuwala kwake kwa UV komanso kukana kwanyengo, ndikupangitsa kuti ikhale yoyenera kugwiritsa ntchito m'nyumba ndi kunja. Zikakhala ndi kuwala kwa dzuwa, zinthu za PMMA sizikhala zachikasu kapena kuwonongeka pakapita nthawi, kuwonetsetsa kuti mawonekedwe awo amakhalabe osasinthika komanso amateteza moyo wawo wautali.

Khalidweli limapindula ndi zikwangwani zakunja, kunyezimira kwa zomangamanga, komanso zophimba zamagalimoto.

●Kusinthasintha mu Dеsign

Kumangirira kwa jekeseni ya PMMA kumapereka kusinthasintha kwapangidwe, kulola opanga kupanga mawonekedwe ovuta komanso ovuta mosavuta.

Ma Dеsignеrs amatha kukankhira malire aukadaulo, kupanga zinthu zatsopano zamapulasitiki zomwe zimakwaniritsa zofunika zina.

Kusinthasintha kumeneku kumathandizira PMMA kuti igwiritsidwe ntchito muzinthu zambiri, kuyambira panyumba wamba mpaka zida zapamwamba zachipatala, ndikutsegula mwayi wopezeka m'mafakitale osiyanasiyana.

Kugwiritsa ntchito PMMA Injection Molding

● Transparеnt and Colorеd Shets

Mapepala a PMMA amafunidwa kwambiri pamapulogalamu omwe amafunikira kuwonekera komanso kukana kwanyengo. Mafakitale monga zomangamanga ndi zomangamanga amagwiritsa ntchito mapepala a PMMA popanga zinthu zakuthambo komanso zonyezimira, zomwe zimapangitsa kuwala kwachilengedwe kuunikira mkati ndikuwonetsetsa kukhazikika komanso kutetezedwa kwa UV.

Kuphatikiza apo, mapepala a PMMA amagwiritsidwa ntchito pazikwangwani kupanga zowonetsa zowoneka bwino momveka bwino.

Kuonjezera apo, mapepala a PMMA amapezeka mumitundu yosiyanasiyana, opatsa opanga mapangidwe kuti azitha kuphatikizira aеsthеtics ndi zowoneka bwino muzochita zawo.

● Makampani oyendetsa magalimoto

Sekta yamagalimoto imadalira kwambiri jekeseni wa PMMA kuti apange zinthu zingapo zomwe zimapereka chitetezo komanso kalembedwe. Mawonekedwe apamwamba kwambiri a PMMA amapangitsa kuti ikhale yabwino popanga ma lens a headlamp, kuwonetsetsa kuti kuyatsa kowala komanso kowoneka bwino kuti misewu iwoneke bwino.

Momwemonso, magetsi amchira amapindula ndi kuwonekera kwa PMMA, zomwe zimathandizira kuti vеhiclе aеsthеtics yonse. Kuphatikiza apo, PMMA imagwiritsidwa ntchito ngati zida, zomwe zimapereka mawonekedwe opepuka komanso owoneka bwino kuzinthu zamkati zagalimoto.

●Zida Zachipatala

PMMA imagwira ntchito yofunika kwambiri m'chipatala, komwe kulondola ndi kuyanjana kwachilengedwe ndizofunikira kwambiri. Mwachitsanzo, machubu olowera m'mitsempha amapindula ndi kuwonekera kwa PMMA, kulola akatswiri azachipatala kuti aziyang'anira momwe madzi akuyenda bwino.

Ma cuvеttes a PMMA amagwiritsidwa ntchito poyesa magazi m'ma labotale, ndikupereka chithunzithunzi chomveka bwino cha zitsanzozo kuti aunike molondola. Komanso, zida zamano za PMMA, monga mano ndi zofananira zomveka bwino, zimapatsa odwala mayankho omasuka komanso owoneka bwino pazofunikira paumoyo wawo wamkamwa.

• Maelekitironi ndi Mawonedwe a Panel

Makampani opanga zamagetsi amadalira kumveka kwapadera kwa PMMA pakupanga mapanelo owonetsera mafoni anzeru, ma tabuleti, ndi zowunikira makompyuta. Kuwonekera kwa zinthuzo kumatsimikizira zithunzi zowoneka bwino komanso zowoneka bwino, kukulitsa luso la wogwiritsa ntchito.

Malensi a PMMA amagwiritsidwanso ntchito pamakamera ndi zida zowonera, kuwonetsetsa kukhulupirika kwa zithunzi pochepetsa kupotoza kwa kuwala.

●Katundu Wapanyumba ndi Wogula

Kupepuka kwa PMMA, kulimba, komanso kusinthasintha kumapangitsa kuti ikhale chisankho chodziwika bwino pazinthu zosiyanasiyana zapakhomo ndi zogula.

Khitchini, monga zakudya zowonekera, zimapindula ndi kumveka bwino kwa PMMA, zomwe zimalola ogwiritsa ntchito kuzindikira zomwe zili mkati. Kuphatikiza apo, PMMA imagwiritsidwa ntchito popanga zosungira, zomwe zimapereka yankho lokhazikika komanso lokhalitsa pokonzekera zinthu zapakhomo.

Kuphatikiza apo, mawonekedwe a PMMA amapangitsa kuti ikhale chinthu chofunikira kwambiri pazokongoletsa, ndikuwonjezera kukhudza kokongola kuzinthu zosiyanasiyana zapakhomo.