Magalasi a Acrylic, PMMA Lens yapulasitiki.
Chiyambi cha Lens:
Chipinda choyambira cha acrylic lens chimapangidwa ndi PMMA, chomwe chimatchedwanso pressed acrylic lens ndi anthu aku Hong Kong ndi Taiwan.Magalasi a Acrylic amatanthauza mbale ya acrylic yotulutsidwa.Kuti mukwaniritse mawonekedwe a electroplating, mbale yoyambira imapanga mawonekedwe agalasi pambuyo pakupaka vacuum.Magalasi apulasitiki amagwiritsidwa ntchito m'malo mwa mandala agalasi, omwe ali ndi ubwino wopepuka, wosavuta kuthyoka, wosavuta kuumba ndi kukonza, utoto wosavuta ndi zina zotero, Chitukuko chikukwera tsiku ndi tsiku, ndipo chasanduka mtundu waukadaulo. pakupanga ma lens.Ma mbale apulasitiki amatha kupangidwa: galasi lambali imodzi, galasi lokhala ndi mbali ziwiri, galasi lapulasitiki, galasi la pepala, lens theka, ndi zina zotero.Mwachitsanzo, chophimba cha foni yam'manja ndi TV zitha kuwoneka tsiku lililonse.
Makhalidwe a lens:
Acrylic ndi yoyenera kukonzanso yachiwiri, monga machining, thermoplastic molding, blowing, blister, zosungunulira zosungunulira, kusindikiza kwamafuta, kusindikiza pazenera ndi vacuum electroplating.Pambuyo pa kupambana, ndizomwe timatcha lens ya acrylic.
Akriliki mbale ndi polymerized ndi methyl methacrylate monoma (MMA), ndicho polymethylmethacrylate (PMMA) mbale plexiglass, amene ndi mtundu wa plexiglass kukonzedwa ndi ndondomeko yapadera.Ili ndi mbiri ya "Mfumukazi ya pulasitiki".Kafukufuku ndi chitukuko cha acrylic ali ndi mbiri ya zaka zoposa 100.
Kugwiritsa ntchito magalasi:
Acrylic ili ndi ubwino wolemera pang'ono, mtengo wotsika komanso kuumba kosavuta.Njira zake zopangira zikuphatikizapo kuponyera, kuumba jekeseni, machining, acrylic thermoforming, etc. Makamaka, kuumba jekeseni kungapangidwe mochuluka, ndi njira yosavuta komanso yotsika mtengo.Choncho, chimagwiritsidwa ntchito mbali zida, nyali galimoto, magalasi kuwala, mapaipi mandala ndi zina zotero.
Acrylic ndiye chinthu chatsopano chabwino kwambiri chopangira zida zaukhondo pambuyo pa ceramic.Poyerekeza ndi zipangizo zamakono za ceramic, acrylic sikuti ali ndi kuwala kwakukulu kosayerekezeka, komanso ali ndi ubwino wotsatira: kulimba kwabwino komanso kosavuta kuwononga;Wamphamvu zobwezeretsa, bola ngati thovu yofewa choviikidwa mu mankhwala otsukira mano akhoza misozi ukhondo ware latsopano.Maonekedwe ake ndi ofewa, ndipo palibe kuzizira kwa mafupa m'nyengo yozizira;Mitundu yowala imatha kukumana ndi zokonda zamunthu zosiyanasiyana.beseni la tebulo, bafa ndi chimbudzi chopangidwa ndi acrylic sizongowoneka bwino, zokhazikika, komanso zachilengedwe.Ma radiation ake amakhala pafupifupi ofanana ndi mafupa a anthu.Zida zaukhondo za Acrylic zidawonekera koyamba ku United States ndipo tsopano zimaposa 70% ya msika wonse wapadziko lonse lapansi.Chifukwa chazovuta komanso kukwera mtengo kwa acrylic kupanga, pali zolowa zambiri zotsika mtengo pamsika.Olowa m'malo awa, omwe amadziwikanso kuti "acrylic", ndi board wamba kapena gulu lophatikizika (lomwe limadziwikanso kuti sandwich board).Bolodi wamba wamba amaponyedwa ndi zinthu wamba zosweka za plexiglass ndi pigment.Kulimba kwake pamwamba ndi kochepa komanso kosavuta kuzimiririka.Kupukuta kumasokonekera mutatha kupukuta ndi mchenga wabwino.Bolodi yophatikizika imakhala ndi utoto wochepa kwambiri wa acrylic pamwamba ndi pulasitiki ya ABS pakati.Ndiosavuta kuyimitsa chifukwa cha kukulitsa kwamafuta ndi kuzizira kozizira komwe kumagwiritsidwa ntchito.Ma acrylic owona ndi onyenga amatha kudziwika kuchokera kumitundu yobisika yamitundu ndi kupukuta kwa gawo la mbale.1 Ntchito Zomangamanga: zenera, chitseko chosamveka bwino ndi zenera, chivundikiro cha masana, foni yam'manja, galasi lokongoletsera, etc. Ntchito Yotsatsa: bokosi lowala, bolodi, siginecha, chikwangwani chowonetsera, etc. Ntchito yoyendetsa galimoto: sitima, galasi lakumbuyo galimoto, lens ya galimoto, ndi zina zotero. 4 Medical ntchito: chofungatira ana, zipangizo zosiyanasiyana opaleshoni mankhwala, nkhani wamba: ntchito zamanja, kalirole zodzikongoletsera, m`mabulaketi, aquariums, kalirole chidole, etc. Industrial ntchito: chida gulu ndi chivundikiro, etc. Kuunikira ntchito: fulorosenti nyali, chandelier, msewu chivundikiro nyale, anatsogolera chowonetsera, acrylic reflector, etc.
Makhalidwe a ndondomeko:
1. Acrylic ili ndi polar side methyl, yomwe imakhala ndi hygroscopicity yoonekeratu.Mayamwidwe amadzi nthawi zambiri amakhala 0.3% - 0.4%.Iyenera kukhala mbale ya acrylic musanapange
Iyenera kuuma pansi pa 80 ℃ - 85 ℃ kwa 4-5h.2. Acrylic ali ndi mphamvu komanso zodziwikiratu zomwe sizili za Newtonian fluid mumtundu wa kutentha kwa kuumba.The kusungunuka mamasukidwe akayendedwe adzachepa kwambiri ndi kuwonjezeka kukameta ubweya mlingo, ndi kusungunula mamasukidwe akayendedwe amakhalanso tcheru kwambiri kusintha kwa kutentha.Chifukwa chake, pakuwumba kwa polymethylmethacrylate, kukulitsa kukakamiza kowumbidwa ndi kutentha kumatha kuchepetsa kukhuthala kwa kusungunuka ndikupeza madzi abwinoko.3. Kutentha komwe acrylic amayamba kuyenda pafupifupi 160 ℃, ndipo kutentha komwe kumayamba kuwola kumakhala kopitilira 270 ℃, ndi kutentha kosiyanasiyana.4. Kukhuthala kwa acrylic kusungunula ndipamwamba, kuzizira kumakhala kofulumira, ndipo mankhwalawo ndi osavuta kupanga kupsinjika kwamkati.Choncho, zinthu ndondomeko mosamalitsa ankalamulira akamaumba, ndi mankhwala amafunika pambuyo mankhwala pambuyo akamaumba.5. Acrylic ndi polima amorphous ndi shrinkage yaing'ono ndi zosiyana zake zosiyanasiyana, zambiri za 0.5% - 0.8%, zomwe zimathandiza kupanga zigawo zapulasitiki zolondola kwambiri.6. Kudula kwa Acrylic ndikwabwino kwambiri, ndipo mbiri yake imatha kupangidwa mosavuta mumitundu yosiyanasiyana yofunikira.
Processing Technology:
Acrylic akhoza kutengera kuponyera, jekeseni akamaumba, extrusion, thermoforming, laser chosema, laser kudula ndi njira zina.
Kuponyera akamaumba
Kumangirira kumagwiritsidwa ntchito kupanga mbiri monga mbale za plexiglass ndi mipiringidzo, ndiye kuti, mbiri imapangidwa ndi polymerization yochuluka.Mankhwalawa amafunikira chithandizo pambuyo pake.Zomwe zimachitika pambuyo pa chithandizo ndi kuteteza kutentha kwa 2h pa 60 ℃ ndi kuteteza kutentha kwa 2h pa 120 ℃.
Jekeseni akamaumba
jekeseni akamaumba utenga zinthu granular wokonzeka ndi kuyimitsidwa polymerization, ndi akamaumba ikuchitika pa wamba plunger kapena wononga jekeseni akamaumba makina.Table 1 ikuwonetsa momwe jekeseni wa polymethylmethacrylate amapangidwira.Njira magawo wononga jekeseni akamaumba makina plunger jekeseni akamaumba makina mbiya ℃ kutentha kumbuyo 180-200 180-200 pakati 190-230 kutsogolo 180-210 210-240 nozzle kutentha ℃ 180-210 210-240 nkhungu 4 kutentha 0-80 jekeseni 0-80 ℃ kuthamanga MPa 80-120 80-130 akugwira kuthamanga MPa 40-60 40-60 wononga liwiro rp.m-1 20-30 jekeseni mankhwala ayenera pambuyo mankhwala kuthetsa nkhawa mkati, mankhwala ikuchitika mu 70-80 ℃ otentha mpweya kufalitsidwa kuyanika uvuni.Nthawi yochiza ya acrylic bar nthawi zambiri imatenga pafupifupi 4H kutengera makulidwe a chinthucho.
Thermoforming
Thermoforming ndi njira yopangira mbale kapena pepala la plexiglass kukhala zinthu zamitundu yosiyanasiyana komanso mawonekedwe.Chodulidwa chopanda kanthu mu kukula kofunikira chimamangiriridwa pa chimango cha nkhungu, kutenthedwa kuti chifewetse, ndiyeno kukakamizidwa kuti chikhale pafupi ndi nkhungu pamwamba kuti ipeze mawonekedwe ofanana ndi nkhungu pamwamba.Pambuyo pozizira ndi kupanga, m'mphepete mwake mumakonzedwa kuti mupeze mankhwala.Njira yojambulira vacuum kapena kukakamiza mwachindunji nkhonya yokhala ndi mbiri imatha kutengedwa kuti ipitirire.Kutentha kwa thermoforming kungatanthauze kusiyanasiyana kwa kutentha komwe kukulimbikitsidwa mu Gulu 3. Mukamagwiritsa ntchito vacuum low draft form form, ndikofunikira kutengera kutentha pafupi ndi malire otsika.Popanga zinthu zozama zokhala ndi mawonekedwe ovuta, ndikofunikira kutengera kutentha pafupi ndi malire apamwamba.Nthawi zambiri, kutentha kwabwino kumatengedwa.
Tili ndi ma lens onse a Arylic, ngati mukuwafuna, chonde titumizireni mokoma mtima, titha kupanganso magalasi a Arylic malinga ndi zomwe mukufuna.Mutha kutumiza zojambulazo kwa ife, ndiye, titha kukupangirani zisankho.Zikomo kwambiri.
