{"id":7133,"date":"2022-04-25T10:52:16","date_gmt":"2022-04-25T02:52:16","guid":{"rendered":"https:\/\/zetarmold.com\/?p=7133"},"modified":"2026-04-04T07:57:18","modified_gmt":"2026-04-03T23:57:18","slug":"pom-enjeksiyon-kaliplama","status":"publish","type":"post","link":"https:\/\/zetarmold.com\/tr\/pom-enjeksiyon-kaliplama\/","title":{"rendered":"POM Enjeksiyon Kal\u0131plama \u0130\u015fleme K\u0131lavuzu"},"content":{"rendered":"

POM (Polioksimetilen Re\u00e7ine) Tan\u0131m\u0131: Polioksimetilen, yan zinciri olmayan, y\u00fcksek yo\u011funluklu ve do\u011frusal bir polimerdir.<\/strong> y\u00fcksek kristallik.<\/strong><\/p>\n\n\n\n

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

POM t\u00fcrleri ve farkl\u0131l\u0131klar\u0131<\/span><\/h2>\n\n\n\n

Molek\u00fcler zincirindeki kimyasal yap\u0131 farkl\u0131l\u0131\u011f\u0131na g\u00f6re homopolimerik formaldehit ve kopolimerik formaldehit olarak ikiye ayr\u0131labilir.<\/p>\n\n\n\n

\u0130kisi aras\u0131ndaki \u00f6nemli farklar \u015funlard\u0131r: homopolimerin yo\u011funlu\u011fu, kristalli\u011fi ve erime noktas\u0131 y\u00fcksektir, ancak termal stabilite zay\u0131ft\u0131r, i\u015fleme s\u0131cakl\u0131\u011f\u0131 aral\u0131\u011f\u0131 dard\u0131r (yakla\u015f\u0131k 10 \u2103) ve asit ve alkali stabilitesi biraz daha d\u00fc\u015f\u00fckt\u00fcr;<\/p>\n\n\n\n

Ko-polimer formaldehit yo\u011funlu\u011fu, kristallik, erime noktas\u0131, mukavemet daha d\u00fc\u015f\u00fckt\u00fcr, ancak iyi termal stabilite, ayr\u0131\u015fmas\u0131 kolay de\u011fildir, i\u015fleme s\u0131cakl\u0131\u011f\u0131 aral\u0131\u011f\u0131 (yakla\u015f\u0131k 50 \u2103), asit ve alkali stabilitesi daha iyidir. M\u00fckemmel genel performansa sahip bir m\u00fchendislik plasti\u011fidir.<\/p>\n\n\n\n

\u0130yi fiziksel, mekanik ve kimyasal \u00f6zelliklere, \u00f6zellikle de m\u00fckemmel s\u00fcrt\u00fcnme direncine sahiptir. Genellikle yar\u0131\u015f \u00e7eli\u011fi veya yakalama \u00e7eli\u011fi olarak bilinir, \u00fc\u00e7\u00fcnc\u00fc en b\u00fcy\u00fck genel m\u00fchendislik plasti\u011fidir. A\u015f\u0131nmaya dayan\u0131kl\u0131 par\u00e7alar, transmisyon par\u00e7alar\u0131 ve kimyasal, enstr\u00fcmantasyon ve di\u011fer par\u00e7alar\u0131n \u00fcretimi i\u00e7in uygundur.<\/p>\n\n\n\n

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

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

1. POM'un nem emilimi d\u00fc\u015f\u00fckt\u00fcr, genellikle 0.20%-0.25%, genellikle kurutmadan olabilir enjeksiyon kal\u0131pl\u0131<\/a>Ancak \u0131slak hammaddelerin kurutulmas\u0131 gerekir. Kurutma, \u00fcr\u00fcn\u00fcn parlakl\u0131\u011f\u0131n\u0131 ve mekanik mukavemetini de art\u0131rabilir.<\/p>\n\n\n\n

2. POM'un erime s\u0131cakl\u0131\u011f\u0131 aral\u0131\u011f\u0131 \u00e7ok dard\u0131r ve erime ve kat\u0131la\u015fma h\u0131z\u0131 h\u0131zl\u0131d\u0131r ve kristalle\u015fme h\u0131z\u0131 da h\u0131zl\u0131d\u0131r. Malzeme s\u0131cakl\u0131\u011f\u0131 erime s\u0131cakl\u0131\u011f\u0131n\u0131n biraz alt\u0131na d\u00fc\u015ft\u00fc\u011f\u00fcnde, kristalle\u015fme meydana gelecek ve ak\u0131\u015fkanl\u0131k h\u0131zla d\u00fc\u015fecektir.<\/p>\n\n\n\n

3. POM \u0131s\u0131ya \u00e7ok duyarl\u0131d\u0131r ve ayr\u0131\u015fmas\u0131 kolayd\u0131r. Ayr\u0131\u015fma s\u0131cakl\u0131\u011f\u0131 240\u00b0C'dir. Bununla birlikte, 200\u00b0C'de 30 mm'den fazla b\u0131rak\u0131ld\u0131\u011f\u0131nda da ayr\u0131\u015f\u0131r. Ayr\u0131\u015f\u0131rken, tahri\u015f edici ve a\u015f\u0131nd\u0131r\u0131c\u0131 gaz yayacakt\u0131r.<\/p>\n\n\n\n

4. POM y\u00fcksek kristalli\u011fe sahiptir. Amorf eriyik kristalin bir kat\u0131 haline geldi\u011finde, b\u00fcz\u00fclme oran\u0131 20%'ye yak\u0131nd\u0131r. Bu nedenle, a\u015f\u0131r\u0131 b\u00fcz\u00fclmeyi \u00f6nlemek i\u00e7in bas\u0131n\u00e7l\u0131 dolum yap\u0131lmal\u0131d\u0131r. plasti\u0307k enjeksi\u0307yon kalipli par\u00e7a<\/a>.<\/p>\n\n\n\n

5. POM d\u00fc\u015f\u00fck s\u00fcrt\u00fcnme katsay\u0131s\u0131na ve y\u00fcksek elastikiyete sahiptir. Plastik par\u00e7alar\u0131n yan oluklar\u0131 s\u0131\u011f oldu\u011funda, plastik par\u00e7alara zarar vermeden kal\u0131ptan \u00e7\u0131kar\u0131labilirler.<\/p>\n\n\n\n

6. POM'un nozul \u00e7ap\u0131 daha b\u00fcy\u00fck olmal\u0131 ve d\u00fcz bir nozul kullan\u0131lmal\u0131d\u0131r. A\u011f\u0131z suyunun ak\u0131\u015f\u0131n\u0131 \u00f6nlemek i\u00e7in nozul deli\u011fi geni\u015fletilebilir.<\/p>\n\n\n\n

7. POM enjeksiyon kal\u0131plama \u00fcr\u00fcnleri<\/a> \u00e7ok sert ve rijittir ve plastik par\u00e7alar iyi kal\u0131ptan \u00e7\u0131kar\u0131labilirli\u011fe sahiptir ve h\u0131zl\u0131 bir \u015fekilde kal\u0131ptan \u00e7\u0131kar\u0131lmas\u0131 kolayd\u0131r.<\/p>\n\n\n\n

8. D\u00f6kme sisteminin erimi\u015f malzemeye kar\u015f\u0131 direnci k\u00fc\u00e7\u00fck olmal\u0131d\u0131r, bu nedenle giri\u015f uygun \u015fekilde art\u0131r\u0131lmal\u0131 ve ak\u0131\u015f kanal\u0131ndaki \u00e7\u0131kmaz durgunluktan m\u00fcmk\u00fcn oldu\u011funca ka\u00e7\u0131n\u0131lmal\u0131d\u0131r.<\/p>\n\n\n\n

9. POM vida ile kal\u0131planmal\u0131d\u0131r enjeksiyon kal\u0131plama<\/a> makinesinde, fazla malzeme \u00e7ok fazla olmamal\u0131 ve varil i\u00e7inde kalma s\u00fcresi \u00e7ok uzun olmamal\u0131d\u0131r.<\/p>\n\n\n\n

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

10. POM'un y\u00fcksek malzeme s\u0131cakl\u0131\u011f\u0131 ve noz\u00fcl\u00fcn d\u00fc\u015f\u00fck s\u0131cakl\u0131\u011f\u0131 durumunda, y\u00fcksek bas\u0131n\u00e7l\u0131 hava enjeksiyonu kolayca patlamaya ve yaralanmaya neden olabilir.<\/p>\n\n\n\n

11. POM eriyi\u011finin ak\u0131\u015fkanl\u0131\u011f\u0131 orta d\u00fczeydedir. Ak\u0131\u015fkanl\u0131k de\u011fi\u015fimi s\u0131cakl\u0131\u011fa duyarl\u0131 de\u011fildir, ancak s\u0131cakl\u0131k de\u011fi\u015fimine daha duyarl\u0131d\u0131r. enjeksiyon kal\u0131plama<\/a> Bas\u0131n\u00e7.<\/p>\n\n\n\n

12. \u0130\u00e7in POM enjeksiyon kal\u0131plama<\/a> Metal u\u00e7lu \u00fcr\u00fcnlerde, u\u00e7lar 10 0 ~ 150 \u2103 \u00f6n \u0131s\u0131tma s\u0131cakl\u0131\u011f\u0131nda \u00f6nceden \u0131s\u0131t\u0131lmal\u0131d\u0131r, bu da \u00e7atlamay\u0131 \u00f6nlemek i\u00e7in plastik par\u00e7alardaki u\u00e7lar\u0131n etraf\u0131ndaki i\u00e7 gerilimi azaltabilir.<\/p>\n\n\n\n

13. POM eriyi\u011finin kayma geriliminin kayma h\u0131z\u0131na oran\u0131 neredeyse sabittir, yani Newton eriyi\u011fi. Eriyik viskozitesi b\u00fcy\u00fck \u00f6l\u00e7\u00fcde kayma h\u0131z\u0131ndan etkilenir, ancak s\u0131cakl\u0131ktan etkilenmez.<\/p>\n\n\n\n

14. Bak\u0131r, POM bozunmas\u0131n\u0131n kataliz\u00f6r\u00fcd\u00fcr ve POM ile temas eden par\u00e7alar bak\u0131r ve ala\u015f\u0131m malzemelerini kullanmaktan ka\u00e7\u0131nmal\u0131d\u0131r.<\/p>\n\n\n\n

15. Ayn\u0131 POM \u00fcr\u00fcn\u00fcnde, kal\u0131plama b\u00fcz\u00fclmesi tekd\u00fcze de\u011fildir, kal\u0131n duvar par\u00e7as\u0131 ince duvar par\u00e7as\u0131ndan daha yava\u015f so\u011futulur, bu da yo\u011funluk fark\u0131na neden olur ve kal\u0131n duvar par\u00e7as\u0131ndaki erimi\u015f malzemenin ince duvar par\u00e7as\u0131na akmas\u0131na neden olur. Bu nedenle, \u00fcr\u00fcn\u00fcn duvar kal\u0131nl\u0131\u011f\u0131 m\u00fcmk\u00fcn oldu\u011funca e\u015fit olmal\u0131d\u0131r.<\/p>\n\n\n\n

16. Y\u00fcksek s\u0131cakl\u0131klarda POM, kal\u0131b\u0131 kolayca a\u015f\u0131nd\u0131rabilecek formaldehit ve hatta formik aside ayr\u0131\u015facakt\u0131r, bu nedenle kal\u0131p korozyona dayan\u0131kl\u0131 malzemelerden yap\u0131lmal\u0131d\u0131r.<\/p>\n\n\n\n

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

POM malzemelerinin \u00f6zellikleri<\/span><\/h2>\n\n\n\n

1.POM i\u015flemeden \u00f6nce kurutulamaz, i\u015fleme s\u00fcrecinde \u00f6n \u0131s\u0131tma yapmak en iyisidir (yakla\u015f\u0131k 80 \u2103), \u00fcr\u00fcn boyutunun stabilitesi i\u00e7in iyidir.<\/p>\n\n\n\n

2. POM'un i\u015fleme s\u0131cakl\u0131\u011f\u0131 \u00e7ok dard\u0131r (0 ~ 215 \u2103) ve varilde kalma s\u00fcresi biraz daha uzun oldu\u011funda veya s\u0131cakl\u0131k 220 \u2103'yi a\u015ft\u0131\u011f\u0131nda ayr\u0131\u015farak g\u00fc\u00e7l\u00fc tahri\u015f edici formaldehit gaz\u0131 \u00fcretecektir.<\/p>\n\n\n\n

3. POM malzemesi enjekte edildi\u011finde, bas\u0131n\u00e7 d\u00fc\u015f\u00fc\u015f\u00fcn\u00fc azaltmak i\u00e7in tutma bas\u0131nc\u0131 daha b\u00fcy\u00fck (enjeksiyon bas\u0131nc\u0131na benzer) olmal\u0131d\u0131r. Vida h\u0131z\u0131 \u00e7ok y\u00fcksek olamaz, art\u0131k miktar\u0131 daha az olmal\u0131d\u0131r;<\/p>\n\n\n\n

4. POM \u00fcr\u00fcn b\u00fcz\u00fclme oran\u0131 b\u00fcy\u00fckt\u00fcr, b\u00fcz\u00fclme veya deformasyon \u00fcretmek kolayd\u0131r. POM'a \u00f6zg\u00fc \u0131s\u0131, y\u00fcksek kal\u0131p s\u0131cakl\u0131\u011f\u0131 (80 ~ 100 \u2103), \u00fcr\u00fcn kal\u0131ptan \u00e7\u0131kar\u0131l\u0131rken \u00e7ok s\u0131cakt\u0131r, parmaklar\u0131n yanmas\u0131n\u0131 \u00f6nlemeniz gerekir.<\/p>\n\n\n\n

5. POM, \"orta bas\u0131n\u00e7, orta h\u0131z, d\u00fc\u015f\u00fck malzeme s\u0131cakl\u0131\u011f\u0131 ve y\u00fcksek kal\u0131p s\u0131cakl\u0131\u011f\u0131\" ko\u015fullar\u0131 alt\u0131nda olu\u015fturulmal\u0131 ve kal\u0131p s\u0131cakl\u0131\u011f\u0131 a\u015fa\u011f\u0131daki durumlarda kontrol edilmelidir hassas enjeksi\u0307yon kaliplama \u00fcr\u00fcnleri\u0307<\/a> olu\u015fur<\/p>\n\n\n\n

6. Y\u00fcksek mekanik dayan\u0131m ve sertlik<\/p>\n\n\n\n

7. En y\u00fcksek yorulma dayan\u0131m\u0131<\/p>\n\n\n\n

8. \u00c7evresel diren\u00e7, organik \u00e7\u00f6z\u00fcc\u00fclere kar\u015f\u0131 iyi diren\u00e7<\/p>\n\n\n\n

9. Tekrarlanan darbelere kar\u015f\u0131 iyi diren\u00e7, iyi elektriksel \u00f6zellikler, iyi geri kazan\u0131m, kendinden ya\u011flama, iyi a\u015f\u0131nma direnci, iyi boyutsal kararl\u0131l\u0131k.<\/p>\n\n\n\n

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

POM malzemelerin \u00f6zellikleri<\/span><\/h2>\n\n\n\n

POM'un uzun vadeli \u0131s\u0131 direnci y\u00fcksek de\u011fildir, ancak k\u0131sa vadede 160 \u2103'ye ula\u015fabilir. Homopolimer POM'un k\u0131sa vadeli \u0131s\u0131 direnci, kopolimer POM'dan 10 \u2103 daha y\u00fcksektir, ancak kopolimer POM'un uzun vadeli \u0131s\u0131 direnci, homopolimer POM'dan yakla\u015f\u0131k 10 \u2103 daha y\u00fcksektir.<\/p>\n\n\n\n

40\u2103~100\u2103 s\u0131cakl\u0131k aral\u0131\u011f\u0131nda uzun s\u00fcre kullan\u0131labilir.<\/p>\n\n\n\n

POM 240\u00b0C'de kolayca ayr\u0131\u015f\u0131r. Ayr\u0131\u015fma s\u0131ras\u0131nda tahri\u015f edici ve a\u015f\u0131nd\u0131r\u0131c\u0131 gazlar olu\u015fur, bu nedenle kal\u0131p \u00e7eli\u011fi korozyona dayan\u0131kl\u0131 malzemelerden yap\u0131lmal\u0131d\u0131r.<\/p>\n\n\n\n

Paraformaldehit p\u00fcr\u00fczs\u00fcz, parlak sert ve yo\u011fun bir malzemedir, a\u00e7\u0131k sar\u0131 veya beyaz, ince duvar k\u0131sm\u0131 yar\u0131 saydamd\u0131r. <\/p>\n\n\n\n

Yanma \u00f6zellikleri kolay yanar, ate\u015ften yanmaya devam eder, alevin \u00fcst ucu sar\u0131, alt ucu mavidir, eriyen damlama, g\u00fc\u00e7l\u00fc bir tahri\u015f edici formaldehit tad\u0131, bal\u0131k kokusu vard\u0131r.<\/p>\n\n\n\n

Poliformaldehit beyaz toz, genellikle opak, iyi renklendirici, \u00f6zg\u00fcl a\u011f\u0131rl\u0131k 1.41-1.43 gram \/ santimetrek\u00fcp, kal\u0131plama b\u00fcz\u00fclme oran\u0131 1.2-3.0%, kal\u0131plama s\u0131cakl\u0131\u011f\u0131 170-200 \u2103, kurutma ko\u015fullar\u0131 80-90 \u2103 2 saattir.<\/p>\n\n\n\n

1. POM, 1,42 g\/cm3 yo\u011funlu\u011fa sahip kristal bir plastiktir. \u0130yi bir sertli\u011fe sahiptir ve genellikle \"Kibrit \u00e7eli\u011fi\" olarak bilinir.<\/p>\n\n\n\n

2. Yorulma direnci, s\u00fcr\u00fcnme direnci, a\u015f\u0131nma direnci, \u0131s\u0131 direnci, darbe direnci ve k\u00fc\u00e7\u00fck s\u00fcrt\u00fcnme katsay\u0131s\u0131, iyi kendi kendine ya\u011flama gibi m\u00fckemmel performansa sahiptir.<\/p>\n\n\n\n

3 POM'un higroskopik olmas\u0131 kolay de\u011fildir, 0.22 ~ 0.25% su emme oran\u0131, iyi boyutsal stabiliteye sahip nemli bir ortamda, 2.1% (daha b\u00fcy\u00fck) b\u00fcz\u00fclme oran\u0131, enjeksiyon boyutunun kontrol edilmesi zordur, 172 \u2103 s\u0131cak deformasyon s\u0131cakl\u0131\u011f\u0131, POM'un iki t\u00fcr homopolimeri vard\u0131r, farkl\u0131 performans (homopolimer s\u0131cakl\u0131k direnci daha iyidir).<\/p>\n\n\n\n

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

4. Olarak da bilinen POM sentetik re\u00e7inelerinden biri; y\u00fcksek sertlik, y\u00fcksek sertlik, y\u00fcksek a\u015f\u0131nma direnci \u00f6zelliklerine sahip bir t\u00fcr beyaz veya siyah plastik par\u00e7ac\u0131kt\u0131r. Esas olarak di\u015fliler, rulmanlar, otomobil par\u00e7alar\u0131, tak\u0131m tezgahlar\u0131, alet par\u00e7alar\u0131 ve di\u011fer iskelet \u00fcr\u00fcnleri i\u00e7in kullan\u0131l\u0131r.<\/p>\n\n\n\n

5. POM (Saigang, Traning olarak da bilinir). Formaldehit ve di\u011fer hammaddelerin polimerizasyonu ile elde edilir. Pom-h (poliformaldehit homopolimeri) ve POM-K (poliformaldehit kopolimeri), y\u00fcksek yo\u011funluklu ve y\u00fcksek kristallili\u011fe sahip termoplastik m\u00fchendislik plastikleridir. \u0130yi fiziksel, mekanik ve kimyasal \u00f6zelliklere, \u00f6zellikle m\u00fckemmel s\u00fcrt\u00fcnme direncine sahiptir.<\/p>\n\n\n\n

6. POM, belirgin erime noktas\u0131na sahip kristal bir plastiktir. Erime noktas\u0131na ula\u015f\u0131ld\u0131\u011f\u0131nda, eriyi\u011fin viskozitesi h\u0131zla azal\u0131r. <\/p>\n\n\n\n

S\u0131cakl\u0131k belirli bir s\u0131n\u0131r\u0131 a\u015ft\u0131\u011f\u0131nda veya eriyik \u00e7ok uzun s\u00fcre \u0131s\u0131t\u0131ld\u0131\u011f\u0131nda ayr\u0131\u015fma meydana gelir. Bak\u0131r bir POM bozunma kataliz\u00f6r\u00fcd\u00fcr. Bak\u0131r veya bak\u0131r malzemelerin POM eriyi\u011fi ile temas\u0131ndan ka\u00e7\u0131n\u0131lmal\u0131d\u0131r.<\/p>\n\n\n\n

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

POM enjeksiyon kal\u0131plama i\u00e7in notlar nelerdir?<\/span><\/h2>\n\n\n\n

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

Bu durumda, enjeksiyon s\u0131cakl\u0131\u011f\u0131 erime noktas\u0131n\u0131n 20 ~ 30 \u2103 \u00fczerinde oldu\u011funda, sadece kapsaml\u0131 fiziksel ve mekanik \u00f6zellikler iyi olmakla kalmaz, ayn\u0131 zamanda bu s\u0131cakl\u0131kta g\u00f6r\u00fcn\u00fcr p\u00fcr\u00fczs\u00fcz ve p\u00fcr\u00fczs\u00fcz \u00fcr\u00fcn elde edilebilir, bu nedenle 190 ~ 200 \u2103 aras\u0131ndaki enjeksiyon s\u0131cakl\u0131\u011f\u0131 kontrol\u00fc en ideal olan\u0131d\u0131r.<\/p>\n\n\n\n

\u0130nce duvarlar i\u00e7in POM enjeksiyon kal\u0131plama \u00fcr\u00fcnleri<\/a> i\u015fleme i\u00e7in 210 \u2103'ye y\u00fckseltilebilir, bu s\u0131cakl\u0131\u011f\u0131n a\u015f\u0131lmas\u0131 malzemenin ak\u0131\u015fkanl\u0131\u011f\u0131n\u0131 iyile\u015ftiremez, ancak malzemenin ayr\u0131\u015fmas\u0131na neden olabilir. Pom-h 215\u2103'ye (190\u2103-230\u2103) ayarlanabilir POM-K 205\u2103'ye (190\u2103-210\u2103) ayarlanabilir<\/p>\n\n\n\n

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

POM kristal bir plastiktir ve eriyi\u011fin varilde kalma s\u00fcresi i\u00e7erdi\u011fi kristal \u00e7ekirdeklerinin say\u0131s\u0131n\u0131 ve boyutunu etkileyecektir. Erime noktas\u0131n\u0131n \u00fczerindeki ayn\u0131 s\u0131cakl\u0131kta, eriyi\u011fin kalma s\u00fcresinin artmas\u0131yla kristal \u00e7ekirdeklerinin say\u0131s\u0131 azal\u0131r.<\/p>\n\n\n\n

Varilin s\u0131cakl\u0131\u011f\u0131 genellikle 150 ~ 180 \u2103'de kontrol edilir, bu da renk de\u011fi\u015fikli\u011fine ve ayr\u0131\u015fmaya neden olmas\u0131 kolayd\u0131r. \u00c7ok d\u00fc\u015f\u00fck s\u0131cakl\u0131k d\u00fczensiz plastikle\u015fmeye ve zay\u0131f ak\u0131\u015fkanl\u0131\u011fa yol a\u00e7acakt\u0131r, bu nedenle ak\u0131\u015fkanl\u0131\u011f\u0131 sa\u011flamak i\u00e7in daha d\u00fc\u015f\u00fck bir i\u015fleme s\u0131cakl\u0131\u011f\u0131 ve daha k\u0131sa bir \u0131s\u0131tma s\u00fcresi kullanmaya \u00e7al\u0131\u015f\u0131n. Nozul s\u0131cakl\u0131\u011f\u0131 genellikle varil s\u0131cakl\u0131\u011f\u0131ndan biraz daha d\u00fc\u015f\u00fckt\u00fcr.<\/p>\n\n\n\n

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

Kal\u0131p s\u0131cakl\u0131\u011f\u0131 POM mukavemetini etkileyen ana fakt\u00f6rd\u00fcr. Daha y\u00fcksek kal\u0131p s\u0131cakl\u0131\u011f\u0131 ve daha uzun kristalle\u015fme s\u00fcresi kristal b\u00fcy\u00fcmesi i\u00e7in elveri\u015flidir. Kristal b\u00fct\u00fcnl\u00fc\u011f\u00fc ve iyi ak\u0131\u015fkanl\u0131k. Genellikle kal\u0131p s\u0131cakl\u0131\u011f\u0131 75-120\u00b0C'de kontrol edilir. Plastik par\u00e7alar\u0131n iyi y\u00fczey ko\u015fullar\u0131nda olmas\u0131 gerekiyorsa, kal\u0131p s\u0131cakl\u0131\u011f\u0131 daha b\u00fcy\u00fck bir de\u011fere al\u0131nabilir.<\/p>\n\n\n\n

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

Bu enjeksiyon kal\u0131pl\u0131<\/a> bas\u0131n\u00e7, POM'un eriyik ak\u0131\u015fkanl\u0131\u011f\u0131na, ak\u0131\u015f kanal\u0131na, kap\u0131n\u0131n kal\u0131nl\u0131\u011f\u0131na ve geni\u015fli\u011fine ve \u00fcr\u00fcn\u00fcn kal\u0131nl\u0131\u011f\u0131na ba\u011fl\u0131d\u0131r. Enjeksiyon bas\u0131nc\u0131 aral\u0131\u011f\u0131 geni\u015ftir, genellikle 40 ~ 130MPa, kal\u0131n duvarl\u0131 \u00fcr\u00fcnler i\u00e7in enjeksiyon bas\u0131nc\u0131 daha k\u00fc\u00e7\u00fck bir de\u011fere ayarlanabilir; \u0130nce duvarl\u0131 \u00fcr\u00fcnler \u00e7ok de\u011ferli olmal\u0131d\u0131r.<\/p>\n\n\n\n

Dur<\/span><\/h3>\n\n\n\n

Namluyu temizlemek i\u00e7in PE veya PP kullan\u0131lmal\u0131, elektrikli \u0131s\u0131tma kapat\u0131lmal\u0131 ve vida \u00f6ne do\u011fru itilmelidir. Kovan ve vida temiz tutulmal\u0131d\u0131r. Kirlilik veya kir POM'un (\u00f6zellikle POM-H) a\u015f\u0131r\u0131 \u0131s\u0131nma stabilitesini de\u011fi\u015ftirebilir.<\/p>\n\n\n\n

Bu nedenle, halojenli polimer veya di\u011fer asidik polimer kullan\u0131ld\u0131\u011f\u0131nda, PE uygulamas\u0131 POM malzemesinden sonra temizlenir, aksi takdirde bir patlama olur. Pigmentlerin, ya\u011flay\u0131c\u0131lar\u0131n veya GF naylon i\u00e7eren malzemelerin uygunsuz etkisi plastik bozulmas\u0131na yol a\u00e7acakt\u0131r.<\/p>\n\n\n\n

Plastik tedavisi<\/span><\/h3>\n\n\n\n

POM d\u00fc\u015f\u00fck su emilimine sahiptir, genellikle 0.2%-0.5%. Genel olarak, POM kurutulmadan i\u015flenebilir, ancak \u0131slak malzemeler kurutulmal\u0131d\u0131r. Kurutma s\u0131cakl\u0131\u011f\u0131 80\u00b0C'nin \u00fczerinde olmal\u0131 ve kurutma s\u00fcresi tedarik\u00e7inin bilgilerine g\u00f6re 2 saatin \u00fczerinde olmal\u0131d\u0131r.<\/p>\n\n\n\n

Geri d\u00f6n\u00fc\u015ft\u00fcr\u00fclm\u00fc\u015f malzemelerin oran\u0131 genellikle 20-30%'den fazla de\u011fildir. Ancak \u00fcr\u00fcn t\u00fcr\u00fcne ve son kullan\u0131ma ba\u011fl\u0131 olarak y\u00fczde 100'e kadar \u00e7\u0131kabilir.<\/p>\n\n\n\n

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

Plastik makine se\u00e7imi<\/span><\/h3>\n\n\n\n

POM'un a\u015fa\u011f\u0131dakiler i\u00e7in \u00f6zel gereksinimleri yoktur enjeksiyon kal\u0131plama<\/a> histerezis alan\u0131 olmayan vida hari\u00e7 makine. Genel enjeksiyon kal\u0131plama<\/a> yap\u0131labilir.<\/p>\n\n\n\n

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

Ortak kal\u0131p s\u0131cakl\u0131k kontrol\u00fc 80-90 \u2103, yolluk \u00e7ap\u0131 3-6 mm, kap\u0131 uzunlu\u011fu 0,5 mm, kap\u0131 boyutu tutkal duvar\u0131n\u0131n kal\u0131nl\u0131\u011f\u0131na ba\u011fl\u0131d\u0131r, dairesel kap\u0131n\u0131n \u00e7ap\u0131 en az 0,5-0,6 kat olmal\u0131d\u0131r. \u00fcr\u00fcn\u00fcn kal\u0131nl\u0131\u011f\u0131, dikd\u00f6rtgen kap\u0131n\u0131n geni\u015fli\u011fi genellikle kal\u0131nl\u0131\u011f\u0131n 2 kat\u0131 veya daha fazlas\u0131d\u0131r ve derinlik duvar kal\u0131nl\u0131\u011f\u0131n\u0131n 0,6 kat\u0131d\u0131r. Kal\u0131ptan \u00c7\u0131karma A\u00e7\u0131s\u0131 40 '-1\u00b030' aras\u0131ndad\u0131r.<\/p>\n\n\n\n

Egzoz sistemi POM-H kal\u0131nl\u0131k 0.01-0.02mm geni\u015flik 3mm POM-K kal\u0131nl\u0131k 0.04mm geni\u015flik 3mm<\/p>\n\n\n\n

Enjeksiyon h\u0131z\u0131<\/span><\/h3>\n\n\n\n

Orta h\u0131z i\u00e7in yayg\u0131n olan h\u0131zl\u0131d\u0131r, \u00e7ok yava\u015f dalgalanmalar \u00fcretmesi kolayd\u0131r, \u00e7ok h\u0131zl\u0131 \u00e7izgiler \u00fcretmesi ve a\u015f\u0131r\u0131 \u0131s\u0131nmay\u0131 kesmesi kolayd\u0131r.<\/p>\n\n\n\n

Geri bas\u0131n\u00e7<\/p>\n\n\n\n

Ne kadar d\u00fc\u015f\u00fck o kadar iyi, genellikle 200 bar'dan fazla de\u011fil<\/p>\n\n\n\n

G\u00f6zalt\u0131 s\u00fcresi<\/span><\/h3>\n\n\n\n

Ekipman\u0131n tutkal tutma noktas\u0131 yoksa<\/p>\n\n\n\n

Pom-h 215\u00b0C'de 35 dakika kalabilir<\/p>\n\n\n\n

Pom-k 205\u00b0C'de 20 dakika boyunca ciddi bir bozunma olmaks\u0131z\u0131n tutulabilir. At enjeksiyon kal\u0131plama<\/a> s\u0131cakl\u0131\u011fa ula\u015ft\u0131\u011f\u0131nda, eriyik varil i\u00e7inde 20 dakikadan fazla kalamaz.<\/p>\n\n\n\n

Pom-k 240\u00b0C'de 7 dakika tutulabilir. Durdurulursa, varil s\u0131cakl\u0131\u011f\u0131 150 \u2103'ye d\u00fc\u015f\u00fcr\u00fclebilir, uzun s\u00fcre durdurmak istiyorsan\u0131z, varili temizlemeli, \u0131s\u0131t\u0131c\u0131y\u0131 kapatmal\u0131s\u0131n\u0131z.<\/p>\n\n\n\n

Tedavi sonras\u0131 12<\/span><\/h3>\n\n\n\n

Par\u00e7alar\u0131n \u00e7ok s\u0131cak kullan\u0131m\u0131 ve y\u00fcksek kalite gereksinimleri i\u00e7in \u0131s\u0131l i\u015flem yap\u0131lmal\u0131d\u0131r.<\/p>\n\n\n\n

Tavlama etkisi, \u00fcr\u00fcn kontrol etmek i\u00e7in 30 dakika boyunca 30% hidroklorik asit \u00e7\u00f6zeltisi konsantrasyonuna dald\u0131r\u0131labilir ve ard\u0131ndan art\u0131k gerilme \u00e7atla\u011f\u0131 olu\u015fup olu\u015fmad\u0131\u011f\u0131n\u0131 belirlemek i\u00e7in \u00e7\u0131plak g\u00f6zle g\u00f6zlemlenebilir.<\/p>\n\n\n\n

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

POM malzemelerin avantajlar\u0131 ve dezavantajlar\u0131<\/span><\/h2>\n\n\n\n

\u00d6zellikler: Kristalin termoplastik plastik, belirgin erime noktas\u0131 165 ~ 175 \u2103, metale en \u00e7ok benzeyen \u00f6zellikler, genellikle plastik \u00e7elik olarak bilinir.<\/p>\n\n\n\n

POM malzemelerin avantajlar\u0131<\/span><\/h3>\n\n\n\n

1. Y\u00fcksek mekanik dayan\u0131m ve sertlik<\/p>\n\n\n\n

2. Maksimum yorulma dayan\u0131m\u0131<\/p>\n\n\n\n

3. \u0130yi \u00e7evresel diren\u00e7 ve organik solvent direnci<\/p>\n\n\n\n

4. Tekrarlanan darbelere kar\u015f\u0131 g\u00fc\u00e7l\u00fc diren\u00e7<\/p>\n\n\n\n

5. Geni\u015f \u00e7al\u0131\u015fma s\u0131cakl\u0131\u011f\u0131 aral\u0131\u011f\u0131 (-40\u2103~120\u2103)<\/p>\n\n\n\n

6. \u0130yi elektriksel \u00f6zellikler<\/p>\n\n\n\n

7. \u0130yi iyile\u015fme<\/p>\n\n\n\n

8. Kendinden ya\u011flama ve iyi a\u015f\u0131nma direnci ile<\/p>\n\n\n\n

9. M\u00fckemmel boyut kararl\u0131l\u0131\u011f\u0131<\/p>\n\n\n\n

POM malzemelerin dezavantajlar\u0131<\/span><\/h3>\n\n\n\n

1. \u0130\u015fleme s\u00fcrecinin uzun s\u00fcre y\u00fcksek s\u0131cakl\u0131k alt\u0131nda ayr\u0131\u015fmas\u0131 kolaysa<\/p>\n\n\n\n

2. Kendi kendine s\u00f6nme yok<\/p>\n\n\n\n

3. Zay\u0131f asit direnci<\/p>\n\n\n\n

4. \u015eekillendirme b\u00fcz\u00fclme oran\u0131 b\u00fcy\u00fckt\u00fcr<\/p>\n\n\n\n

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

POM malzemelerinin uygulama alan\u0131<\/span><\/h2>\n\n\n\n

POM hammaddeleri y\u00fcksek mukavemete ve hafifli\u011fe sahiptir ve genellikle bak\u0131r, \u00e7inko, kalay, kur\u015fun ve di\u011fer demir d\u0131\u015f\u0131 metallerin yerine kullan\u0131l\u0131r. <\/p>\n\n\n\n

End\u00fcstriyel makineler, otomobil, elektronik aletler, g\u00fcnl\u00fck ihtiya\u00e7lar, borular ve aksesuarlar, hassas aletler ve yap\u0131 malzemeleri ve di\u011fer sekt\u00f6rlerde yayg\u0131n olarak kullan\u0131lmaktad\u0131r.<\/p>\n\n\n\n

POM hammaddeleri her t\u00fcrl\u00fc kayar ve d\u00f6ner makine par\u00e7alar\u0131n\u0131n imalat\u0131nda yayg\u0131n olarak kullan\u0131lmaktad\u0131r, her t\u00fcrl\u00fc di\u015fliyi yapmak<\/a>kollar, kasnaklar, di\u015fliler, \u00f6zellikle rulmanlar, s\u0131cak su vanalar\u0131, hassas \u00f6l\u00e7\u00fcm vanalar\u0131, konvey\u00f6r zincirleri ve silindirleri, ak\u0131\u015f \u00f6l\u00e7erler, araba i\u00e7 ve d\u0131\u015f kollar\u0131, kranklar ve di\u011fer pencere d\u00f6nen makineler i\u00e7in uygundur.\u00a0<\/p>\n\n\n\n

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

Ya\u011f pompas\u0131 yatak yuvas\u0131 ve pervane gaz anahtar\u0131 valfi, elektronik anahtar par\u00e7alar\u0131, s\u0131k\u0131 kat\u0131, terminal ayna maskesi, elektrikli fan par\u00e7alar\u0131, \u0131s\u0131tma plakas\u0131, g\u00f6sterge d\u00fc\u011fmesi;<\/p>\n\n\n\n

Kay\u0131t ve video kaset yata\u011f\u0131; Her t\u00fcrl\u00fc boru ve tar\u0131msal sulama sistemleri ve vanalar\u0131, ya\u011fmurlama ba\u015fl\u0131klar\u0131, musluklar, banyo k\u00fcveti par\u00e7alar\u0131; Anahtar klavyesi, d\u00fc\u011fme, ses ve video makaras\u0131; S\u0131cakl\u0131k kontrol zamanlay\u0131c\u0131s\u0131; Elektrikli aletler, bah\u00e7e bitirme aletleri par\u00e7alar\u0131; <\/p>\n\n\n\n

Ayr\u0131ca s\u00f6rf tahtas\u0131, yelkenli ve \u00e7e\u015fitli k\u0131zak par\u00e7alar\u0131, saat mikro di\u015flisi, spor malzemeleri \u00e7er\u00e7eve aksesuarlar\u0131 ve her t\u00fcrl\u00fc toka, ba\u011flant\u0131 eleman\u0131, \u00e7akmak, fermuar, toka ile s\u0131rt \u00e7antas\u0131 olarak kullan\u0131labilir; T\u0131bbi aletlerde kalp pili; Yapay kalp kapak\u00e7\u0131klar\u0131, apeks omurlar\u0131, protezler vb.<\/p>\n\n\n\n

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

Sonu\u00e7<\/span><\/h2>\n\n\n\n

Bu blog t\u00fcrlerini, \u00f6zelliklerini ve enjeksiyon kal\u0131plama <\/a>Plastik POM m\u00fchendisli\u011fi s\u00fcreci, ger\u00e7ek \u00fcretimde ekipman se\u00e7imi, \u00fcr\u00fcn modelleme ve kal\u0131p tasar\u0131m\u0131 i\u00e7in hususlar ve yayg\u0131n kusurlar\u0131n \u00e7\u00f6z\u00fcmleri.<\/p>\n\n\n\n

POM malzemelerinin ger\u00e7ek se\u00e7iminde ve POM enjeksiyon kal\u0131plama imalat\u0131<\/a>deneyimli bir \u015firket se\u00e7ilmesi tavsiye edilir. 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\u00fcn kullan\u0131m\u0131, i\u015flevsel gereksinimleri, g\u00f6r\u00fcn\u00fcm\u00fc ve di\u011fer y\u00f6nlerinden uygun bir POM malzemesini kapsaml\u0131 bir \u015fekilde \u00f6nermek.<\/p>","protected":false},"excerpt":{"rendered":"

POM (Polioksimetilen Re\u00e7ine) Tan\u0131m\u0131: Polioksimetilen, yan zinciri olmayan, y\u00fcksek yo\u011funluklu ve y\u00fcksek kristallikte do\u011frusal bir polimerdir. POM t\u00fcrleri ve farkl\u0131l\u0131klar\u0131 Molek\u00fcler zincirindeki kimyasal yap\u0131 farkl\u0131l\u0131\u011f\u0131na g\u00f6re homopolimerik formaldehit ve kopolimerik formaldehit olmak \u00fczere ikiye ayr\u0131labilir. \u0130kisi aras\u0131ndaki \u00f6nemli farklar \u015funlard\u0131r: yo\u011funluk, kristallik ve [...]<\/p>","protected":false},"author":1,"featured_media":7139,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"POM Injection Molding Processing Guide | ZetarMold","_seopress_titles_desc":"Discover expert insights on pom 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":[135,176],"meta_box":{"post-to-quiz_to":[]},"_links":{"self":[{"href":"https:\/\/zetarmold.com\/tr\/wp-json\/wp\/v2\/posts\/7133"}],"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=7133"}],"version-history":[{"count":0,"href":"https:\/\/zetarmold.com\/tr\/wp-json\/wp\/v2\/posts\/7133\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/zetarmold.com\/tr\/wp-json\/wp\/v2\/media\/7139"}],"wp:attachment":[{"href":"https:\/\/zetarmold.com\/tr\/wp-json\/wp\/v2\/media?parent=7133"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zetarmold.com\/tr\/wp-json\/wp\/v2\/categories?post=7133"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zetarmold.com\/tr\/wp-json\/wp\/v2\/tags?post=7133"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}