{"id":7325,"date":"2022-04-27T10:45:07","date_gmt":"2022-04-27T02:45:07","guid":{"rendered":"https:\/\/zetarmold.com\/?p=7325"},"modified":"2026-04-09T08:32:11","modified_gmt":"2026-04-09T00:32:11","slug":"pmma-enjeksiyon-kaliplama","status":"publish","type":"post","link":"https:\/\/zetarmold.com\/tr\/pmma-enjeksiyon-kaliplama\/","title":{"rendered":"PMMA Enjeksiyon Kal\u0131plama \u0130\u015fleme K\u0131lavuzu"},"content":{"rendered":"

PMMA yayg\u0131n olarak pleksiglas, akrilik vb. olarak bilinir. Kimyasal ad\u0131 polimetil metakrilatt\u0131r.<\/strong><\/p>\n

Polimerin hammadde polimerizasyonu olarak akrilik asit ve esterleri topluca akrilik esterler olarak bilinir, kar\u015f\u0131l\u0131k gelen plastik topluca polimetil metakrilatta en yayg\u0131n olarak kullan\u0131lan poliakrilik asit plastik olarak bilinir.<\/strong><\/p>\n

Polimetil metakrilat i\u00e7in k\u0131saltma kodu PMMA enjeksiyon kal\u0131b\u0131<\/a>Enjeksiyon kal\u0131plama prosesini optimize etme ipu\u00e7lar\u0131 | ZetarMold<\/a>yayg\u0131n olarak Pleksiglas olarak bilinen, m\u00fckemmel \u0131\u015f\u0131k iletim performans\u0131na sahiptir, g\u00fcne\u015f \u0131\u015f\u0131\u011f\u0131n\u0131n 92%'den fazlas\u0131n\u0131 ve 73.5%'ye kadar ultraviyole \u0131\u015f\u0131\u011f\u0131 iletebilir<\/strong>.<\/p>\n

Y\u00fcksek mekanik mukavemet, belirli \u0131s\u0131 ve so\u011fuk direnci, korozyon direnci, iyi yal\u0131t\u0131m \u00f6zellikleri, boyutsal kararl\u0131l\u0131k, \u015fekillendirmesi kolay, k\u0131r\u0131lgan doku, organik \u00e7\u00f6z\u00fcc\u00fclerde \u00e7\u00f6z\u00fcnmesi kolay, y\u00fczey sertli\u011fi yeterli de\u011fil, sa\u00e7lar\u0131 ovmak kolay, ya\u011f kaplar\u0131, \u0131\u015f\u0131klar, alet par\u00e7alar\u0131, optik lensler, dekoratif hediyeler ve benzeri gibi belirli bir g\u00fc\u00e7 gerektiren \u015feffaf yap\u0131sal par\u00e7alar i\u00e7in kullan\u0131labilir.<\/p>\n

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\"\"<\/figure>\n<\/div>\n<\/div>\n<\/div>\n

PMMA malzeme t\u00fcrleri<\/span><\/h2>\n

Pleksiglas, g\u00f6r\u00fcn\u00fcm\u00fcne g\u00f6re d\u00f6rt t\u00fcre ayr\u0131labilir.<\/p>\n

Renksiz ve \u015feffaf Pleksiglas en yayg\u0131n ve en \u00e7ok kullan\u0131lan Pleksiglas malzemesidir.<\/p>\n

1. Renkli \u015feffaf pleksiglas: genellikle renkli plaka olarak bilinir. I\u015f\u0131k ge\u00e7irgenli\u011fi yumu\u015fakt\u0131r ve bundan yap\u0131lan \u0131\u015f\u0131k kutular\u0131 ve el sanatlar\u0131 insanlar\u0131n kendilerini rahat ve c\u00f6mert hissetmelerini sa\u011flar.<\/p>\n

2. Renkli pleksiglas ikiye ayr\u0131l\u0131r: \u015feffaf renkli, yar\u0131 saydam renkli, opak renkli \u00fc\u00e7.
Manyetik pleksiglas, sedefli pleksiglas kadar parlak de\u011fildir, k\u0131r\u0131lgand\u0131r, k\u0131r\u0131lmas\u0131 kolayd\u0131r, kadranlar, kutular, t\u0131bbi ekipman ve insanlar, hayvan modelleme malzemeleri yapmak i\u00e7in uygundur. <\/p>\n

Transparent plexiglass: high transparency, suitable for the PMMA injection molding production of lamps and lanterns. Chandeliers made of it, exquisite, crystal clear.<\/p>\n

Yar\u0131 saydam pleksiglas, yumu\u015fak yans\u0131mas\u0131yla buzlu cama benzer ve bundan yap\u0131lan el i\u015fleri insanlar\u0131n kendilerini rahat ve c\u00f6mert hissetmelerini sa\u011flar. <\/p>\n

3. Sedefli pleksiglas: Genel pleksiglasa sedef tozu veya floresan tozu eklenerek yap\u0131l\u0131r. <\/p>\n

Bu tip pleksiglas renk ve parlakl\u0131k, y\u00fczey kalitesi y\u00fcksektir, s\u0131cak preslenmi\u015f d\u0131\u015f formu enjeksiyon kal\u0131b\u0131<\/a>, even after grinding and polishing, still maintain the injection molded pattern, the formation of a unique artistic effect. <\/p>\n

Karakterler, hayvan modelleri, ticari markalar, dekorasyonlar ve tan\u0131t\u0131m ve sergi malzemeleri yapmak i\u00e7in kullan\u0131labilir.<\/p>\n

4. Kabartmal\u0131 pleksiglas: \u015feffaf, yar\u0131 saydam renksiz, k\u0131r\u0131lgan, k\u0131r\u0131lmas\u0131 kolay, i\u00e7 kap\u0131 ve pencerelerde ve di\u011fer dekoratif olarak kullan\u0131lan, hem \u015feffaf hem de \u015feffaf olmayan \u015fekil \u00f6zelliklerine sahip, genellikle i\u00e7 b\u00f6lmelerde veya i\u00e7 mekan\u0131 ay\u0131ran kap\u0131 ve pencerelerde kullan\u0131l\u0131r.<\/p>\n

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\"\"<\/figure>\n<\/div>\n<\/div>\n<\/div>\n

PMMA malzeme ana \u00f6zellikleri<\/span><\/h2>\n

Yayg\u0131n olarak Pleksiglas olarak bilinen ve PMMA olarak k\u0131salt\u0131lan polimetil metakrilat, y\u00fcksek \u015feffafl\u0131k, d\u00fc\u015f\u00fck fiyat ve kolay i\u015fleme avantajlar\u0131na sahiptir ve genellikle cama alternatif olarak kullan\u0131l\u0131r.<\/p>\n

Pleksiglas, \u015feffafl\u0131\u011f\u0131, stabilitesi ve hava ko\u015fullar\u0131na dayan\u0131kl\u0131l\u0131\u011f\u0131, kolay boyanmas\u0131, kolay i\u015flenmesi, g\u00fczel g\u00f6r\u00fcn\u00fcm\u00fc ile daha \u00f6nce geli\u015ftirilmi\u015f \u00f6nemli bir termoplastiktir ve in\u015faat sekt\u00f6r\u00fcnde geni\u015f bir uygulama alan\u0131na sahiptir.<\/p>\n

Y\u00fcksek \u015eeffafl\u0131k<\/span><\/h3>\n

Pleksiglas, camdan daha y\u00fcksek olan 92% \u0131\u015f\u0131k ge\u00e7irgenlik oran\u0131yla en iyi polimer \u015feffaf malzemedir.<\/p>\n

Yapay k\u00fc\u00e7\u00fck g\u00fcne\u015f olarak adland\u0131r\u0131lan g\u00fcne\u015f lambas\u0131n\u0131n lambas\u0131 kuvarsdan yap\u0131lm\u0131\u015ft\u0131r, bunun nedeni kuvars\u0131n ultraviyole \u0131\u015f\u0131\u011f\u0131 tamamen ge\u00e7irebilmesidir. S\u0131radan cam sadece 0.6% ultraviyole \u0131\u015f\u0131\u011f\u0131 ge\u00e7irebilir, ancak pleksiglas 73% ge\u00e7irebilir.<\/p>\n

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\"\"<\/figure>\n<\/div>\n<\/div>\n<\/div>\n

Y\u00fcksek mekanik dayan\u0131m<\/span><\/h3>\n

Pleksiglas\u0131n ba\u011f\u0131l molek\u00fcler k\u00fctlesi, uzun zincirli bir polimer bile\u015fi\u011fi olan yakla\u015f\u0131k 2 milyondur ve molek\u00fcl\u00fc olu\u015fturan zincir \u00e7ok yumu\u015fakt\u0131r, bu nedenle pleksiglas\u0131n mukavemeti nispeten y\u00fcksektir ve gerilme ve darbeye kar\u015f\u0131 diren\u00e7 s\u0131radan camdan 7-18 kat daha y\u00fcksektir.<\/p>\n

Pleksiglas\u0131n molek\u00fcler zincir segmentlerinin \u00e7ok d\u00fczenli bir \u015fekilde d\u00fczenlendi\u011fi bir \u0131s\u0131tma ve germe i\u015flemi vard\u0131r, b\u00f6ylece malzeme toklukta \u00f6nemli bir art\u0131\u015fa sahiptir. <\/p>\n

Bu pleksiglas\u0131n i\u00e7ine bir \u00e7ivi \u00e7ak\u0131ld\u0131\u011f\u0131nda, \u00e7ivi i\u00e7eri girse bile pleksiglas \u00e7atlak olu\u015fturmaz. Bu t\u00fcr bir pleksiglas kur\u015funla delindikten sonra da par\u00e7alara ayr\u0131lmaz.<\/p>\n

Bu nedenle, pleksiglas\u0131n germe i\u015flemi kur\u015fun ge\u00e7irmez cam olarak kullan\u0131labilir, ayn\u0131 zamanda askeri u\u00e7aklarda kokpit kapa\u011f\u0131 olarak da kullan\u0131labilir.<\/p>\n

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\"\"<\/figure>\n<\/div>\n<\/div>\n<\/div>\n

Hafif a\u011f\u0131rl\u0131k<\/span><\/h3>\n

Pleksiglas\u0131n yo\u011funlu\u011fu 1.18g\/cm3't\u00fcr; malzemenin ayn\u0131 boyutu, a\u011f\u0131rl\u0131\u011f\u0131 s\u0131radan cam\u0131n sadece yar\u0131s\u0131d\u0131r, metal al\u00fcminyum (hafif bir metal) 43%.<\/p>\n

\u0130\u015flemesi kolay<\/span><\/h3>\n

Pleksiglas sadece torna, delme i\u00e7in delme makinesi ile kesilemez ve aseton, kloroform vb. ile \u00e7e\u015fitli aparat \u015fekillerine yap\u0131\u015ft\u0131r\u0131labilir, ayn\u0131 zamanda b\u00fcy\u00fckten u\u00e7ak kokpit kapa\u011f\u0131na, k\u00fc\u00e7\u00fckten takma di\u015flere ve di\u015f braketlerine ve di\u011fer renkli \u00fcr\u00fcnlere \u015fi\u015firme, enjeksiyon, ekstr\u00fczyon ve di\u011fer y\u00f6ntemlerle i\u015flenebilir. plasti\u0307k kalip i\u0307malati<\/a> y\u00f6ntemler.<\/p>\n

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\"\"<\/figure>\n<\/div>\n<\/div>\n<\/div>\n

PMMA malzemelerinin fiziksel \u00f6zellikleri<\/span><\/h2>\n

Polimetil metakrilat iyi genel mekanik \u00f6zelliklere sahiptir ve genel ama\u00e7l\u0131 plastikler aras\u0131nda \u00f6n s\u0131ralarda yer al\u0131r. \u00c7ekme, e\u011filme ve s\u0131k\u0131\u015ft\u0131rma mukavemetleri poliolefinlerden daha y\u00fcksektir, ancak ayn\u0131 zamanda polistiren ve polivinil klor\u00fcrden vb. daha y\u00fcksektir. Darbe toklu\u011fu daha zay\u0131ft\u0131r, ancak ayn\u0131 zamanda polistirenden biraz daha iyidir.<\/p>\n

\u00c7ekme, b\u00fckme ve s\u0131k\u0131\u015ft\u0131rma gibi mekanik \u00f6zellikler, poliamid ve polikarbonat gibi m\u00fchendislik plastikleri seviyesine ula\u015fabilen d\u00f6kme ontoloji polimerize polimetil metakrilat levhalar (\u00f6rne\u011fin, havac\u0131l\u0131k i\u00e7in pleksiglas levhalar) i\u00e7in daha y\u00fcksektir.<\/p>\n

Genel olarak, polimetil metakrilat\u0131n gerilme mukavemeti 50-77MPa seviyesine ula\u015fabilir, e\u011filme mukavemeti 90-130MPa'ya ula\u015fabilir, bu performans verilerinin \u00fcst s\u0131n\u0131r\u0131 baz\u0131 m\u00fchendislik plastiklerine ula\u015fm\u0131\u015f veya hatta a\u015fm\u0131\u015ft\u0131r.<\/p>\n

Kopma uzamas\u0131 sadece 2%-3%'dir, bu nedenle mekanik \u00f6zellikleri temelde sert ve k\u0131r\u0131lgan plastiktir ve \u00e7entik hassasiyetine sahiptir, stres alt\u0131nda \u00e7atlamas\u0131 kolayd\u0131r, ancak k\u0131r\u0131lma polistiren ve s\u0131radan inorganik cam kadar keskin ve d\u00fczensiz de\u011fildir.<\/p>\n

40 \u2103, yanal metil grubunun hareket etmeye ba\u015flad\u0131\u011f\u0131 s\u0131cakl\u0131\u011fa e\u015fde\u011fer olan ikincil bir ge\u00e7i\u015f s\u0131cakl\u0131\u011f\u0131d\u0131r, 40 \u2103'nin \u00f6tesinde, malzemenin toklu\u011fu ve s\u00fcnekli\u011fi artar. Polimetil metakrilat\u0131n y\u00fczey sertli\u011fi d\u00fc\u015f\u00fckt\u00fcr ve kolayca \u00e7izilebilir.<\/p>\n

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\"\"<\/figure>\n<\/div>\n<\/div>\n<\/div>\n

Polimetil metakrilat\u0131n mukavemeti, gerilme eyleminin s\u00fcresi ile ili\u015fkilidir ve eylem s\u00fcresinin artmas\u0131yla azal\u0131r. \u00c7ekme y\u00f6nlendirmesinden sonra polimetil metakrilat\u0131n (y\u00f6nlendirilmi\u015f pleksiglas) mekanik \u00f6zellikleri \u00f6nemli \u00f6l\u00e7\u00fcde iyile\u015ftirilir ve \u00e7entik hassasiyeti de iyile\u015ftirilir.<\/p>\n

Polimetil metakrilat\u0131n \u0131s\u0131 direnci y\u00fcksek de\u011fildir ve cams\u0131 ge\u00e7i\u015f s\u0131cakl\u0131\u011f\u0131 104\u00b0C'ye ula\u015fmas\u0131na ra\u011fmen, maksimum s\u00fcrekli kullan\u0131m s\u0131cakl\u0131\u011f\u0131 farkl\u0131 \u00e7al\u0131\u015fma ko\u015fullar\u0131nda 65\u00b0C ile 95\u00b0C aras\u0131nda de\u011fi\u015fir, \u0131s\u0131 sapma s\u0131cakl\u0131\u011f\u0131 yakla\u015f\u0131k 96\u00b0C (1,18 MPa) ve Vicat yumu\u015fama noktas\u0131 yakla\u015f\u0131k 113\u00b0C'dir. <\/p>\n

Is\u0131 direnci, monomerin akrilat metakrilat veya glikol bis-ester akrilat ile kopolimerizasyonu ile geli\u015ftirilebilir.<\/p>\n

Polimetil metakrilat\u0131n so\u011fuk direnci de zay\u0131ft\u0131r ve k\u0131r\u0131lganl\u0131k s\u0131cakl\u0131\u011f\u0131 yakla\u015f\u0131k 9,2\u00b0C'dir. <\/p>\n

Polimetil metakrilat\u0131n termal stabilitesi orta d\u00fczeydedir, polivinil klor\u00fcr ve poliformaldehitten daha iyidir, ancak poliolefin ve polistirenden daha azd\u0131r, termal ayr\u0131\u015fma s\u0131cakl\u0131\u011f\u0131 270 \u2103'den biraz daha y\u00fcksektir, ak\u0131\u015f s\u0131cakl\u0131\u011f\u0131 yakla\u015f\u0131k 160 \u2103'dir, bu nedenle hala geni\u015f bir eriyik i\u015fleme s\u0131cakl\u0131\u011f\u0131 aral\u0131\u011f\u0131 vard\u0131r.<\/p>\n

Polimetil metakrilat\u0131n termal iletkenli\u011fi ve \u00f6zg\u00fcl \u0131s\u0131 kapasitesi plastiklerde orta d\u00fczeydedir, s\u0131ras\u0131yla 0.19W\/CM.K ve 1464J\/Kg.K.<\/p>\n

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PMMA malzemelerinin kimyasal \u00f6zellikleri<\/span><\/h2>\n

Kimyasal reaktif direnci ve solvent direnci<\/p>\n

PMMA seyreltik inorganik asitlere kar\u015f\u0131 dayan\u0131kl\u0131d\u0131r, ancak konsantre inorganik asitler a\u015f\u0131nmas\u0131na neden olabilir, alkalilere kar\u015f\u0131 dayan\u0131kl\u0131d\u0131r, ancak \u0131l\u0131k sodyum hidroksit ve potasyum hidroksit s\u0131zmas\u0131na neden olabilir, tuzlara ve grese kar\u015f\u0131 dayan\u0131kl\u0131d\u0131r, alifatik hidrokarbonlara kar\u015f\u0131 dayan\u0131kl\u0131d\u0131r, suda, metanolde, gliserolde vb. \u00e7\u00f6z\u00fcnmez, ancak alkol \u015fi\u015fmesini emebilir ve stres \u00e7atlamas\u0131 \u00fcretebilir, ketonlara, klorlu hidrokarbonlara ve aromatik hidrokarbonlara kar\u015f\u0131 dayan\u0131kl\u0131 de\u011fildir.<\/p>\n

\u00c7\u00f6z\u00fcn\u00fcrl\u00fck parametresi yakla\u015f\u0131k 18,8 (J\/CM3)1\/2'dir ve dikloroetan, trikloroetilen, kloroform, toluen gibi bir\u00e7ok klorlu hidrokarbon ve aromatik i\u00e7inde \u00e7\u00f6z\u00fclebilir. Vinil asetat ve aseton da \u00e7\u00f6z\u00fcnmesini sa\u011flayabilir.<\/p>\n

Polimetil metakrilat, ozon ve s\u00fclf\u00fcr dioksit gibi gazlara kar\u015f\u0131 iyi bir dirence sahiptir.<\/p>\n

Hava ko\u015fullar\u0131na dayan\u0131kl\u0131l\u0131k<\/span><\/h3>\n

Polimetil metakrilat atmosferik ya\u015flanmaya kar\u015f\u0131 m\u00fckemmel dirence sahiptir. Numuneleri 4 y\u0131l boyunca do\u011fal ya\u015fland\u0131rma testine tabi tutulmu\u015f, a\u011f\u0131rl\u0131k de\u011fi\u015fimi, gerilme mukavemeti ve \u0131\u015f\u0131k ge\u00e7irgenli\u011finde hafif azalma, renkte hafif sararma, g\u00fcm\u00fc\u015f \u015ferit direncinde daha belirgin azalma ve darbe mukavemetinde hafif art\u0131\u015f g\u00f6r\u00fclm\u00fc\u015f, di\u011fer fiziksel \u00f6zelliklerde ise neredeyse hi\u00e7 de\u011fi\u015fiklik olmam\u0131\u015ft\u0131r.<\/p>\n

Yan\u0131c\u0131l\u0131k<\/span><\/h3>\n

Polimetil metakrilat\u0131n yanmas\u0131 \u00e7ok kolayd\u0131r ve nihai oksijen indeksi sadece 17,3't\u00fcr.<\/p>\n

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PMMA enjeksiyon kal\u0131plama i\u015flemi<\/span><\/h2>\n

Plastik i\u015fleme<\/span><\/h3>\n

PMMA has certain water absorption, its water absorption rate reaches 0.3-0.4%, and manufacturing injection molding shall be below 0.1% of the temperature, usually 0.04%. <\/p>\n

Suyun varl\u0131\u011f\u0131 eriyi\u011fin kabarc\u0131klar, hava hatlar\u0131, \u015feffafl\u0131\u011f\u0131n azalmas\u0131 vb. g\u00f6r\u00fcnmesine neden olur. Bu y\u00fczden kurutulmal\u0131d\u0131r. <\/p>\n

Kurutma s\u0131cakl\u0131\u011f\u0131 80-90\u00b0C ve s\u00fcresi 3 saat veya daha fazlad\u0131r.<\/p>\n

Geri d\u00f6n\u00fc\u015ft\u00fcr\u00fclm\u00fc\u015f malzeme baz\u0131 durumlarda 100% kullan\u0131labilir, ger\u00e7ek miktar kalite gereksinimlerine ba\u011fl\u0131d\u0131r, genellikle 30%'nin \u00fczerinde olabilir, geri d\u00f6n\u00fc\u015ft\u00fcr\u00fclm\u00fc\u015f malzeme kirlilikten ka\u00e7\u0131nmal\u0131d\u0131r, aksi takdirde bitmi\u015f \u00fcr\u00fcn\u00fcn \u015feffafl\u0131\u011f\u0131n\u0131 ve do\u011fas\u0131n\u0131 etkileyecektir.<\/p>\n

Enjeksiyon kal\u0131plama makinesi se\u00e7imi<\/span><\/h3>\n

PMMA has no special requirements for injection molding machine. Because of its high melt viscosity, the need for deeper screw grooves and larger diameter nozzle holes. <\/p>\n

If the strength of the product is high, the screw with a larger aspect ratio should be used for low temperature plasticization. In addition, PMMA injection molding must use dry hopper to store the material.<\/p>\n

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Kal\u0131p ve kap\u0131 tasar\u0131m\u0131<\/span><\/h3>\n

Kal\u0131b\u0131n s\u0131cakl\u0131\u011f\u0131 60 \u2103 -80 \u2103 olabilir, ana ak\u0131\u015f kanal\u0131n\u0131n \u00e7ap\u0131 i\u00e7 konikli\u011fe uygun olmal\u0131d\u0131r, en iyi a\u00e7\u0131 5 \u00b0 ila 7 \u00b0 'dir.<\/p>\n

4 mm veya daha fazla \u00fcr\u00fcn enjekte etmek istiyorsan\u0131z, a\u00e7\u0131 7 \u00b0 olmal\u0131, ana ak\u0131\u015f kanal\u0131n\u0131n \u00e7ap\u0131 8 ila 10 mm olmal\u0131, kap\u0131n\u0131n toplam uzunlu\u011fu 50 mm'yi ge\u00e7memelidir, duvar kal\u0131nl\u0131\u011f\u0131 4 mm'den az olan \u00fcr\u00fcnler i\u00e7in, ak\u0131\u015f kanal\u0131n\u0131n \u00e7ap\u0131 6-8 mm olmal\u0131d\u0131r.<\/p>\n

Duvar kal\u0131nl\u0131\u011f\u0131 4 mm'den fazla olan \u00fcr\u00fcnler i\u00e7in yolluk \u00e7ap\u0131 8-12 mm olmal\u0131d\u0131r. Kenar \u015fekilli, yelpaze \u015fekilli ve sark\u0131t \u015fekilli kap\u0131lar i\u00e7in derinlik 0,7-0,9t (t \u00fcr\u00fcn duvar kal\u0131nl\u0131\u011f\u0131d\u0131r) ve i\u011fne \u015fekilli kap\u0131lar\u0131n \u00e7ap\u0131 0,8-2mm olmal\u0131d\u0131r; d\u00fc\u015f\u00fck viskozite i\u00e7in daha k\u00fc\u00e7\u00fck bir boyut kullan\u0131lmal\u0131d\u0131r. <\/p>\n

Yayg\u0131n havaland\u0131rma delikleri 0,05 ila 0,07 mm derinli\u011finde ve 6 mm geni\u015fli\u011findedir. 30\u2032-1\u00b0 bo\u015fluk k\u0131sm\u0131 35\u2032-1\u00b030\u00b0 aras\u0131nda kal\u0131ptan \u00e7\u0131karma e\u011fimi vard\u0131r.<\/p>\n

Erime s\u0131cakl\u0131\u011f\u0131<\/span><\/h3>\n

Hava enjeksiyon y\u00f6ntemiyle \u00f6l\u00e7\u00fclebilir: tedarik\u00e7i taraf\u0131ndan sa\u011flanan bilgilere ba\u011fl\u0131 olarak 210\u2103-270\u2103 aras\u0131nda.<\/p>\n

Enjeksiyon s\u0131cakl\u0131\u011f\u0131<\/span><\/h3>\n

H\u0131zl\u0131 enjeksiyon i\u00e7in kullan\u0131labilir, ancak y\u00fcksek i\u00e7 gerilimi \u00f6nlemek i\u00e7in yava\u015f-h\u0131zl\u0131-yava\u015f vb. gibi \u00e7ok a\u015famal\u0131 enjeksiyon kullan\u0131lmas\u0131 tavsiye edilir. Kal\u0131n par\u00e7alar enjekte edilirken yava\u015f h\u0131z kullan\u0131l\u0131r. <\/p>\n

Saklama s\u00fcresi<\/span><\/h3>\n

S\u0131cakl\u0131k 260\u00b0C ise al\u0131konma s\u00fcresi en fazla 10 dakikay\u0131, s\u0131cakl\u0131k 270\u00b0C ise al\u0131konma s\u00fcresi 8 dakikay\u0131 ge\u00e7memelidir.<\/p>\n

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PMMA enjeksiyon kal\u0131plama i\u00e7in proses ko\u015fullar\u0131 nelerdir?<\/span><\/h2>\n

PMMA'n\u0131n kal\u0131plama s\u00fcreci performans\u0131<\/span><\/h3>\n

1. PMMA polar yan metil i\u00e7erir, daha belirgin bir nem emilimi vard\u0131r, nem emme oran\u0131 genellikle 0.3% - 0.4%'dir, bu nedenle kal\u0131plama daha \u00f6nce kurutulmal\u0131d\u0131r, 80 ~ 85 \u2103, 4 ~ 5 saat kurutma ko\u015fullar\u0131.<\/p>\n

2. PMMA eriyik viskozitesi y\u00fcksektir, so\u011futma h\u0131z\u0131 daha h\u0131zl\u0131d\u0131r, plastik par\u00e7alar\u0131n kal\u0131plama sonras\u0131 i\u015flemden sonra i\u00e7 gerilim \u00fcretmesi kolayd\u0131r.<\/p>\n

3. PMMA amorf bir malzemedir, enjeksiyon kal\u0131plama<\/a> b\u00fcz\u00fclme oran\u0131 ve de\u011fi\u015fim aral\u0131\u011f\u0131 k\u00fc\u00e7\u00fckt\u00fcr, genellikle 0.5%-0.8%, bu nedenle \u00fcr\u00fcn hassasiyeti y\u00fcksektir.<\/p>\n

4. PMMA eriyi\u011finin zay\u0131f ak\u0131\u015fkanl\u0131\u011f\u0131 nedeniyle, eriyik dolumunu kolayla\u015ft\u0131rmak i\u00e7in b\u00fcy\u00fck boyutlu kap\u0131lar kullan\u0131lmal\u0131d\u0131r.<\/p>\n

5. PMMA eriyi\u011fi belirgin Newtonyen olmayan ak\u0131\u015fkan \u00f6zelliklerine sahiptir, eriyik viskozitesi kesme h\u0131z\u0131 ile artacak ve \u00f6nemli \u00f6l\u00e7\u00fcde azalacakt\u0131r, eriyik viskozitesi s\u0131cakl\u0131k de\u011fi\u015fikliklerine duyarl\u0131d\u0131r.<\/p>\n

6. PMMA eriyi\u011finin viskozitesini azaltmak i\u00e7in, kal\u0131plama bas\u0131nc\u0131 ve malzeme s\u0131cakl\u0131\u011f\u0131 daha iyi bir ak\u0131\u015fkanl\u0131k elde etmek i\u00e7in art\u0131r\u0131labilir.<\/p>\n

7. PMMA geni\u015f bir yelpazeye sahiptir enjeksiyon kal\u0131plama<\/a> i\u015fleme s\u0131cakl\u0131\u011f\u0131, 160 \u2103 ak\u0131\u015f ba\u015flang\u0131c\u0131 s\u0131cakl\u0131\u011f\u0131, 270 \u2103 ayr\u0131\u015fma s\u0131cakl\u0131\u011f\u0131.<\/p>\n

8. PMMA eriyi\u011finin ak\u0131\u015f\u0131n\u0131 kolayla\u015ft\u0131rmak i\u00e7in kal\u0131p kap\u0131s\u0131n\u0131n kesit alan\u0131 k\u0131sa ve kal\u0131n olmal\u0131, geni\u015f ve ince kesitli bir kap\u0131 kullan\u0131lmamal\u0131d\u0131r.<\/p>\n

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PMMA'n\u0131n ana enjeksiyon kal\u0131plama ko\u015fullar\u0131<\/span><\/h2>\n

Namlu s\u0131cakl\u0131\u011f\u0131<\/span><\/h3>\n

The thermal stability of PMMA injection molding is medium, the thermal decomposition temperature is slightly higher than 270\u2103, usually, for screw type injection molding machine, the barrel temperature is controlled at 180~230\u2103, while the plunger type injection molding machine is higher than the screw type by 20\u2103: about. The nozzle temperature is about 20\u2103 lower than the barrel temperature.<\/p>\n

Kal\u0131p s\u0131cakl\u0131\u011f\u0131<\/span><\/h3>\n

PMMA eriyi\u011finin so\u011fuma h\u0131z\u0131 h\u0131zl\u0131 oldu\u011fundan, plastik par\u00e7alar\u0131n i\u00e7 gerilim \u00fcretmesi kolayd\u0131r, bu nedenle y\u00fcksek ve d\u00fc\u015f\u00fck kontrol enjeksiyon kal\u0131b\u0131<\/a> temperature is strict, and the general injection mold temperature is controlled at 40~80\u2103.<\/p>\n

Enjeksiyon bas\u0131nc\u0131<\/span><\/h3>\n

As the viscosity of PMMA melt is high and the flowability is poor, so the injection molded pressure should be high, the injection pressure is generally controlled at 80-120MPa, and the holding pressure is 40-60MPa.<\/p>\n

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PMMA plastik enjeksiyon kal\u0131plama s\u00fcreci ve \u00f6nlemleri<\/span><\/h2>\n

PMMA plasti\u011fin kurutulmas\u0131<\/span><\/h3>\n

PMMA has a certain water absorption, its water absorption rate reaches 0.3-0.4%, and PMMA injection molding shall be below 0.1% of the wetness, usually 0.04%.<\/p>\n

Suyun varl\u0131\u011f\u0131 eriyi\u011fin kabarc\u0131klar, hava hatlar\u0131, \u015feffafl\u0131\u011f\u0131n azalmas\u0131 vb. g\u00f6r\u00fcnmesine neden olur. Bu y\u00fczden kurutulmal\u0131d\u0131r. Kurutma s\u0131cakl\u0131\u011f\u0131 80-90\u00b0C ve s\u00fcresi 3 saat veya daha fazlad\u0131r.<\/p>\n

Geri d\u00f6n\u00fc\u015ft\u00fcr\u00fclm\u00fc\u015f malzeme baz\u0131 durumlarda 100% kullan\u0131labilir, ger\u00e7ek miktar kalite gereksinimlerine ba\u011fl\u0131d\u0131r, genellikle 30%'nin \u00fczerinde olabilir, kirlili\u011fi \u00f6nlemek i\u00e7in geri d\u00f6n\u00fc\u015ft\u00fcr\u00fclm\u00fc\u015f malzeme, aksi takdirde bitmi\u015f \u00fcr\u00fcn\u00fcn \u015feffafl\u0131\u011f\u0131n\u0131 ve do\u011fas\u0131n\u0131 etkileyecektir.<\/p>\n

PMMA plastik enjeksiyon kal\u0131plama makinesi se\u00e7imi<\/span><\/h3>\n

PMMA has no special requirements for injection molding machine. Because of its high melt viscosity, the need for deeper screw grooves and larger diameter injection nozzle holes. <\/p>\n

If the strength of the product requirements are high, it is necessary to use a larger aspect ratio of the screw to implement low-temperature plasticization. In addition, PMMA plastic injection molding must use dry hopper to store the material.<\/p>\n

Kal\u0131p ve kap\u0131 tasar\u0131m\u0131<\/span><\/h3>\n

S\u0131cakl\u0131k enjeksi\u0307yon kaliplari <\/a>60 \u2103 -80 \u2103 olabilir, ana ak\u0131\u015f kanal\u0131n\u0131n \u00e7ap\u0131 i\u00e7 konikli\u011fe uygun olmal\u0131d\u0131r, en iyi a\u00e7\u0131 5 \u00b0 ila 7 \u00b0 'dir, 4 mm veya daha fazla \u00fcr\u00fcn enjekte etmek istiyorsan\u0131z, a\u00e7\u0131 7 \u00b0 olmal\u0131d\u0131r.<\/p>\n

The diameter of the main runner should be 8 to 10mm, and the overall length of the gate should not exceed 50mm. For plastic mold products with wall thickness less than 4mm, the runner diameter should be 6-8mm.<\/p>\n

Yolluk \u00e7ap\u0131 8-12 mm olmal\u0131d\u0131r. Kenar, fan ve sark\u0131t kap\u0131n\u0131n derinli\u011fi 0,7 ila 0,9t (t \u00fcr\u00fcn\u00fcn duvar kal\u0131nl\u0131\u011f\u0131d\u0131r) ve i\u011fne \u015feklindeki kap\u0131n\u0131n \u00e7ap\u0131 0,8 ila 2 mm olmal\u0131d\u0131r; d\u00fc\u015f\u00fck viskozite i\u00e7in daha k\u00fc\u00e7\u00fck bir boyut se\u00e7ilmelidir. <\/p>\n

Yayg\u0131n havaland\u0131rma delikleri 0,05 derinlikte ve 6 mm geni\u015flikte olup, serbest b\u0131rakma e\u011fimi 30\u2032-1\u00b0 bo\u015fluk k\u0131sm\u0131 35\u2032-1\u00b030\u00b0 aras\u0131ndad\u0131r.<\/p>\n

PMMA plastik eriyik s\u0131cakl\u0131\u011f\u0131<\/span><\/h3>\n

Can be measured by air injection method: from 210\u2103~270\u2103, depending on the information provided by the supplier. Withdraw the back seat so that the nozzle of the injection molding machine leaves the main flow bushing, and then plasticize the injection manually, which is the counter-air injection.<\/p>\n

PMMA plastik enjeksiyon h\u0131z\u0131 ve bekleme s\u00fcresi<\/span><\/h3>\n

Available for fast injection molding production , but to avoid a high degree of internal stress, it is advisable to use multi-stage injection, such as slow-fast-slow, etc., and slow speed when injecting thick parts.<\/p>\n

Not: S\u0131cakl\u0131k 260\u00b0C ise, al\u0131konma s\u00fcresi en fazla 10 dakikay\u0131, s\u0131cakl\u0131k 270\u00b0C ise al\u0131konma s\u00fcresi 8 dakikay\u0131 ge\u00e7memelidir.<\/p>\n

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PMMA malzemesinin avantajlar\u0131 ve dezavantajlar\u0131<\/span><\/h2>\n

PMMA veya Pleksiglas avantajlar\u0131 olarak da bilinen akrilik, geleneksel seramik malzemelerle kar\u015f\u0131la\u015ft\u0131r\u0131ld\u0131\u011f\u0131nda seramikten sonra s\u0131hhi tesisat \u00fcretmek i\u00e7in en iyi yeni malzemedir, benzersiz y\u00fcksek parlakl\u0131\u011fa ek olarak akrilik, a\u015fa\u011f\u0131daki avantajlara sahiptir.<\/p>\n

PMMA malzemesinin avantajlar\u0131<\/span><\/h3>\n

1. Pleksiglas esteti\u011fi: ayna efekti, m\u00fckemmel i\u015f\u00e7ilik, k\u0131r\u0131\u015f\u0131kl\u0131k yok, diki\u015f yok;<\/p>\n

2. Pleksiglas\u0131n g\u00f6rsel etkisi: \u00e7e\u015fitli renkler, g\u00fc\u00e7l\u00fc g\u00f6rsel etki. <\/p>\n

3. Pleksiglas\u0131n \u0131\u015f\u0131k iletimi: \u0131\u015f\u0131k iletim oran\u0131 96%'ye, m\u00fckemmel \u0131\u015f\u0131k iletim oran\u0131na, yumu\u015fak \u0131\u015f\u0131\u011fa ula\u015fabilir. <\/p>\n

4. Pleksiglas\u0131n darbe direnci: s\u0131radan cam \u00fcr\u00fcnlerden 200 kat daha fazla, neredeyse hi\u00e7 k\u0131r\u0131lma riski yok;<\/p>\n

5. Pleksiglas\u0131n dayan\u0131kl\u0131l\u0131\u011f\u0131: \u00dcr\u00fcn, yerle\u015fik \u0131\u015f\u0131k kayna\u011f\u0131 i\u00e7in \u00e7ok iyi bir korumaya sahiptir ve \u0131\u015f\u0131k kayna\u011f\u0131 \u00fcr\u00fcnlerinin \u00f6mr\u00fcn\u00fc uzat\u0131r;<\/p>\n

6. Pleksiglas hava ko\u015fullar\u0131na dayan\u0131kl\u0131l\u0131k: Rengi uzun s\u00fcre koruyabilir ve plakan\u0131n iyi kalitesi 6-13 y\u0131l kadar uzun s\u00fcre kullan\u0131labilir;<\/p>\n

7. Pleksiglas aleve dayan\u0131kl\u0131d\u0131r: kendili\u011finden yanma olmaz ve kendili\u011finden s\u00f6ner;<\/p>\n

8. Pleksiglas\u0131n enerji tasarrufu: \u00e7ok iyi \u0131\u015f\u0131k iletimi, \u0131\u015f\u0131k kayna\u011f\u0131n\u0131 nispeten azalt\u0131r, elektrik tasarrufu sa\u011flar, kullan\u0131m maliyetini d\u00fc\u015f\u00fcr\u00fcr;<\/p>\n

9. Pleksiglas\u0131n makull\u00fc\u011f\u00fc: makul tasar\u0131m ve ya\u011fmur ge\u00e7irmez ve nem ge\u00e7irmez, a\u00e7\u0131k yap\u0131, temizlenmesi ve bak\u0131m\u0131 kolay, vb.<\/p>\n

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PMMA malzemenin dezavantajlar\u0131<\/span><\/h3>\n

Akrilik \u00fcretiminin zorlu\u011fu, y\u00fcksek maliyeti nedeniyle piyasada bir\u00e7ok d\u00fc\u015f\u00fck kaliteli ve d\u00fc\u015f\u00fck maliyetli ikame \u00fcr\u00fcn bulunmaktad\u0131r.<\/p>\n

Bu ikameler \"akrilik\" olarak da bilinir, asl\u0131nda s\u0131radan organik tahta veya sandvi\u00e7 tahta olarak da bilinen kompozit tahtad\u0131r. <\/p>\n

S\u0131radan organik cam \u00e7atlak malzeme art\u0131 pigment d\u00f6k\u00fcm\u00fc ve haline gelen s\u0131radan organik tahta, y\u00fczey sertli\u011fi d\u00fc\u015f\u00fckt\u00fcr, solmas\u0131 kolayd\u0131r, ince z\u0131mparalama ile parlatma etkisi zay\u0131ft\u0131r.<\/p>\n

Kompozit paneller sadece \u00e7ok ince bir akrilik y\u00fczey tabakas\u0131d\u0131r, orta ABS plastiktir, termal genle\u015fme ve b\u00fcz\u00fclme kullan\u0131m\u0131 delaminasyonu kolayd\u0131r. <\/p>\n

Do\u011fru veya yanl\u0131\u015f akrilik, ince renk fark\u0131 ve parlatma etkisinin plaka kesitinden tan\u0131mlanabilir.<\/p>\n

PMMA malzemesinin uygulama alanlar\u0131<\/span><\/h2>\n

Pleksiglas, sadece ticaret, hafif sanayi, in\u015faat, kimya end\u00fcstrisi ve benzeri alanlarda yayg\u0131n olarak kullan\u0131lmaktad\u0131r. Ve pleksiglas \u00fcretimi, reklam dekorasyonunda, kum modeli \u00e7ok yayg\u0131n olarak kullan\u0131lmaktad\u0131r, \u00f6rne\u011fin: tabelalar, reklam panolar\u0131, \u0131\u015f\u0131k kutusu panelleri ve \u00c7ince ve \u0130ngilizce harf panelleri.<\/p>\n

Malzeme se\u00e7imi modelleme tasar\u0131m\u0131na ba\u011fl\u0131d\u0131r, ne t\u00fcr bir modelleme, ne t\u00fcr bir pleksiglas, renk, \u00e7e\u015fitlilik ile en iyi etkiyi yaratmak i\u00e7in tekrar tekrar test edilmelidir. \u0130yi bir modelleme tasar\u0131m\u0131yla, ayn\u0131 zamanda g\u00fczel bir zanaat haline gelmek i\u00e7in dikkatli i\u015fleme ve \u00fcretime de g\u00fcvenin.<\/p>\n

1. Mimari uygulamalar: pencereler, ses ge\u00e7irmez kap\u0131lar ve pencereler, \u0131\u015f\u0131k kapaklar\u0131, telefon kabinleri vb.<\/p>\n

2. Reklam uygulamas\u0131: \u0131\u015f\u0131k kutusu, tabela, tabela, ekran stand\u0131, vb.<\/p>\n

3. Ula\u015f\u0131m uygulamalar\u0131: trenler, otomobiller ve di\u011fer ara\u00e7 kap\u0131lar\u0131 ve pencereleri vb.<\/p>\n

4. T\u0131bbi uygulamalar: bebek kuv\u00f6zleri, \u00e7e\u015fitli cerrahi t\u0131bbi aletler Sivil \u00fcr\u00fcnler: banyo tesisleri, el sanatlar\u0131, kozmetikler, braketler, akvaryumlar vb.<\/p>\n

5. End\u00fcstriyel uygulamalar: alet y\u00fczey plakalar\u0131 ve kapaklar\u0131 vb.<\/p>\n

6. Ayd\u0131nlatma uygulamalar\u0131: floresan lambalar, avizeler, sokak lambas\u0131 g\u00f6lgelikleri, vb.<\/p>\n

7. Ev uygulamalar\u0131: meyve tabaklar\u0131, ka\u011f\u0131t mendil kutular\u0131, akrilik sanat tablolar\u0131 ve di\u011fer g\u00fcnl\u00fck ev kullan\u0131m \u00fcr\u00fcnleri.<\/p>\n

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\u00d6zet<\/span><\/h2>\n

Bu blogda m\u00fchendislik plastikleri PMMA t\u00fcrleri ve \u00f6zellikleri tan\u0131t\u0131lmaktad\u0131r. \u00f6zel enjeksi\u0307yon modelleme<\/a> s\u00fcreci, ekipman se\u00e7imi, \u00fcr\u00fcn modelleme ve ger\u00e7ek \u00fcretimde kal\u0131p tasar\u0131m\u0131 hususlar\u0131 ve yayg\u0131n kusurlar\u0131n \u00e7\u00f6z\u00fcmleri.<\/p>\n

In the actual PMMA material selection and injection molding product production, it is recommended to choose an experienced enjeksiyon kal\u0131p \u00fcreticisi<\/a> ve enjeksiyon kal\u0131plama \u00fcr\u00fcn tedarik\u00e7isi<\/a> Projenin sorunsuz bir \u015fekilde uygulanmas\u0131n\u0131 sa\u011flamak i\u00e7in \u00fcr\u00fcn kullan\u0131m\u0131 ve i\u015flevsel gereksinimler, g\u00f6r\u00fcn\u00fcm vb. a\u00e7\u0131s\u0131ndan uygun bir PMMA malzemesi \u00f6nermek.<\/p>\n

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Request a Free Quote \u2192<\/a> See our Injection Molding Complete Guide<\/a> for a comprehensive overview.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

PMMA yayg\u0131n olarak pleksiglas, akrilik vb. olarak bilinir. Kimyasal ad\u0131 polimetil metakrilatt\u0131r. Polimerin hammadde polimerizasyonu olarak akrilik asit ve esterleri topluca akrilik esterler olarak bilinir, kar\u015f\u0131l\u0131k gelen plastik topluca polimetil metakrilatta en yayg\u0131n olarak kullan\u0131lan poliakrilik asit plastik olarak bilinir. Polimetil metakrilat k\u0131saltma kodu [...]<\/p>","protected":false},"author":1,"featured_media":7332,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"PMMA Injection Molding Processing Guide | ZetarMold","_seopress_titles_desc":"Discover expert insights on pmma injection molding from ZetarMold. We provide professional injection molding services with DFM support, fast prototyping, and","_seopress_robots_index":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[45],"tags":[135,199],"meta_box":{"post-to-quiz_to":[]},"_links":{"self":[{"href":"https:\/\/zetarmold.com\/tr\/wp-json\/wp\/v2\/posts\/7325"}],"collection":[{"href":"https:\/\/zetarmold.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zetarmold.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zetarmold.com\/tr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/zetarmold.com\/tr\/wp-json\/wp\/v2\/comments?post=7325"}],"version-history":[{"count":0,"href":"https:\/\/zetarmold.com\/tr\/wp-json\/wp\/v2\/posts\/7325\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/zetarmold.com\/tr\/wp-json\/wp\/v2\/media\/7332"}],"wp:attachment":[{"href":"https:\/\/zetarmold.com\/tr\/wp-json\/wp\/v2\/media?parent=7325"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zetarmold.com\/tr\/wp-json\/wp\/v2\/categories?post=7325"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zetarmold.com\/tr\/wp-json\/wp\/v2\/tags?post=7325"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}