{"id":12183,"date":"2022-08-23T11:57:10","date_gmt":"2022-08-23T03:57:10","guid":{"rendered":"https:\/\/zetarmold.com\/?p=12183"},"modified":"2026-04-09T08:29:16","modified_gmt":"2026-04-09T00:29:16","slug":"nedenler-cozumler-kaynak-i%cc%87zleri%cc%87-enjeksi%cc%87yon-kalipli-parcalar","status":"publish","type":"post","link":"https:\/\/zetarmold.com\/tr\/nedenler-cozumler-kaynak-i%cc%87zleri%cc%87-enjeksi%cc%87yon-kalipli-parcalar\/","title":{"rendered":"Enjeksiyon kal\u0131pl\u0131 par\u00e7alarda kaynak izlerinin nedenleri ve \u00e7\u00f6z\u00fcmleri"},"content":{"rendered":"

The weld marks are an important factor affecting the quality of plastic parts. The research found that: under the same process conditions, the strength of the weld line area is only 10-92% of the original material, which seriously affects the normal use of enjeksiyon kal\u0131b\u0131<\/a>ed products.<\/strong><\/p>\n

Avoiding these and other injection molding defects is all about using the right mold manufacturer and having a part manufacturer that has the right quality assurance to catch these defects and troubleshoot them.<\/p>\n

\u00d6rne\u011fin, otomotiv end\u00fcstrisinde, niteliksiz plastik par\u00e7alar do\u011frudan otomobilin kalitesinin d\u00fc\u015fmesine yol a\u00e7makta ve hatta insan hayat\u0131n\u0131n g\u00fcvenli\u011fini tehlikeye atmaktad\u0131r. <\/p>\n

Bu nedenle, kaynak \u00e7izgilerinin olu\u015fum s\u00fcrecini ve etkileyen fakt\u00f6rleri incelemek ve kaynak \u00e7izgilerini ortadan kald\u0131rman\u0131n yollar\u0131n\u0131 bulmak b\u00fcy\u00fck pratik \u00f6neme sahiptir. <\/p>\n

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

Kaynak \u00e7izgilerinin olu\u015fum mekanizmas\u0131<\/span><\/h2>\n

Plastic products in the injection molding process, found in the plastic melt filling the cavity, such as two or more strands of melt in the first part of the meeting have been cooled so that they can not be completely integrated, it will be at the intersection of the groove, the formation of melt marks.<\/p>\n

Plastik \u00fcr\u00fcnlerin \"kaynak \u00e7izgileri\", erimi\u015f malzemenin iki telinin morfolojik yap\u0131s\u0131n\u0131n ve mekanik \u00f6zelliklerinin birbiriyle temas etti\u011fi, di\u011fer k\u0131s\u0131mlardan tamamen farkl\u0131 olan \u00fc\u00e7 boyutlu alan\u0131 ifade eder.<\/p>\n

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Enjeksiyon kal\u0131pl\u0131 par\u00e7alarda en yayg\u0131n kaynak hatlar\u0131 iki temel tiptedir:<\/span><\/h2>\n

One is the melt joint marks formed at the meeting of the melt fronts entering the cavity from different gates, called cold melt joint marks, when two or more gates are used to reduce the melt flow and mold filling time due to the structural characteristics or large size of the injection molded parts.<\/p>\n

Bir di\u011feri ise kavite ma\u00e7a ve kesici u\u00e7larla donat\u0131ld\u0131\u011f\u0131nda, d\u00fc\u015f\u00fck s\u0131cakl\u0131ktaki eriyik bu engeli a\u015farken iki \u015feride ayr\u0131l\u0131r ve iki eriyik \u015feridi engeli a\u015ft\u0131ktan sonra yeniden birle\u015ferek s\u0131cak kaynak izleri olarak adland\u0131r\u0131lan kaynak izlerini olu\u015fturur.<\/p>\n

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

Plastik \u00fcr\u00fcnlerdeki kaynak izlerinin nedenleri<\/span><\/h2>\n

1. Kap\u0131dan y\u00fcksek h\u0131zda ge\u00e7en plastik eriyik do\u011frudan bo\u015flu\u011fa girer, ard\u0131ndan bo\u015flu\u011fun y\u00fczeyine temas eder ve sertle\u015fir, ard\u0131ndan sonraki plastik eriyik taraf\u0131ndan itilir, b\u00f6ylece y\u0131lan izleri b\u0131rak\u0131r.<\/p>\n

2. When the injection mold design adopts a multi-gate feeding scheme, the plastic melt flow fronts converge with each other; in the area of holes and obstacles, the melt flow fronts will also be divided into two; uneven uniform wall thickness will also lead to weld marks.<\/p>\n

3. Bir yan kap\u0131 kullan\u0131ld\u0131\u011f\u0131nda ve plastik kap\u0131dan ge\u00e7tikten sonra durgun malzeme alan\u0131 yoksa veya yetersiz durgun malzeme alan\u0131 varsa, kolayca sprey izleri \u00fcretecektir.<\/p>\n

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

Plastik \u00fcr\u00fcnlerdeki kaynak izleri i\u00e7in \u00e7\u00f6z\u00fcmler<\/span><\/h2>\n

1. Kap\u0131 say\u0131s\u0131n\u0131 azalt\u0131n.<\/p>\n

2. Kap\u0131 konumunu ayarlay\u0131n.<\/p>\n

3. F\u00fczyon par\u00e7as\u0131n\u0131n yan\u0131na malzeme ta\u015fma kuyular\u0131 ekleyin, kaynak hatt\u0131n\u0131 ta\u015fma kuyular\u0131na ta\u015f\u0131y\u0131n ve ard\u0131ndan \u00e7\u0131kar\u0131n.<\/p>\n

4. Bu par\u00e7adaki havay\u0131 ve u\u00e7ucu maddeleri h\u0131zla tahliye etmek i\u00e7in kaynak hatt\u0131 alan\u0131ndaki egzozu art\u0131r\u0131n. Plasti\u011fin ak\u0131\u015fkanl\u0131\u011f\u0131n\u0131 art\u0131rmak ve ergitme s\u0131ras\u0131nda malzeme s\u0131cakl\u0131\u011f\u0131n\u0131 art\u0131rmak i\u00e7in malzeme s\u0131cakl\u0131\u011f\u0131n\u0131 ve kal\u0131p s\u0131cakl\u0131\u011f\u0131n\u0131 y\u00fckseltin.<\/p>\n

5. Kaynak hatt\u0131n\u0131n yerini ba\u015fka bir yere ta\u015f\u0131mak i\u00e7in kap\u0131lar\u0131n yerini ve say\u0131s\u0131n\u0131 de\u011fi\u015ftirin.<\/p>\n

6. Enjeksiyon h\u0131z\u0131n\u0131 artt\u0131r\u0131n. <\/p>\n

7. Enjeksiyon bas\u0131nc\u0131n\u0131 art\u0131r\u0131n ve d\u00f6kme sisteminin boyutunu art\u0131r\u0131n.<\/p>\n

8. Kal\u0131p ay\u0131r\u0131c\u0131 maddelerin kullan\u0131m\u0131n\u0131 azalt\u0131n.<\/p>\n

9. Kap\u0131 ile kaynak alan\u0131 aras\u0131ndaki mesafeyi k\u0131salt\u0131n.<\/p>\n

10. Ge\u00e7it konumunu, erimi\u015f plastik ge\u00e7itten ge\u00e7tikten sonra pime veya duvara \u00e7arpacak \u015fekilde ayarlay\u0131n.<\/p>\n

11. Ge\u00e7it formunu, ge\u00e7it alan\u0131nda yeterli durgunluk alan\u0131na sahip \u00fcst \u00fcste binen bir ge\u00e7it veya pabu\u00e7lu ge\u00e7it olarak de\u011fi\u015ftirin.<\/p>\n

12. Plastik eriyi\u011fin ilk enjeksiyon h\u0131z\u0131n\u0131 yava\u015flat\u0131n.<\/p>\n

13. Malzeme ak\u0131\u015f cephesinin hemen olu\u015fmas\u0131 i\u00e7in kapak kal\u0131nl\u0131\u011f\u0131n\u0131\/kesit alan\u0131n\u0131 art\u0131r\u0131n.<\/p>\n

14. Malzemenin h\u0131zl\u0131 k\u00fcrlenmesini \u00f6nlemek i\u00e7in kal\u0131p s\u0131cakl\u0131\u011f\u0131n\u0131 y\u00fckseltin.<\/p>\n

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

Erime izlerini etkileyen fakt\u00f6rler ve bunlar\u0131n ortadan kald\u0131r\u0131lmas\u0131n\u0131 iyile\u015ftirecek \u00f6nlemler\u00a0<\/span><\/h2>\n

Erime izleri plastik par\u00e7alar\u0131n kalitesi \u00fczerinde \u00f6nemli bir etkiye sahip oldu\u011fundan, olu\u015fum mekanizmalar\u0131 ve performans de\u011ferlendirmeleri \u00fczerine bir\u00e7ok ara\u015ft\u0131rma yap\u0131lm\u0131\u015f ve \u00e7e\u015fitli \u00e7\u00f6z\u00fcmler \u00f6nerilmi\u015ftir. <\/p>\n

a. S\u0131cakl\u0131k etkisi\u00a0<\/span><\/h3>\n

S\u0131cakl\u0131\u011f\u0131n art\u0131r\u0131lmas\u0131, polimerin gev\u015feme s\u00fcrecini h\u0131zland\u0131rabilir ve molek\u00fcler zincir dolanma s\u00fcresini azaltabilir, bu da malzemenin \u00f6n ucundaki molek\u00fcllerin tam f\u00fczyonuna, dif\u00fczyonuna ve dolanmas\u0131na daha elveri\u015flidir, b\u00f6ylece kaynak ba\u011flant\u0131 izi alan\u0131n\u0131n mukavemetini art\u0131r\u0131r.<\/p>\n

Eriyik s\u0131cakl\u0131\u011f\u0131n\u0131n art\u0131r\u0131lmas\u0131n\u0131n plastik par\u00e7alar\u0131n y\u00fczeyindeki V-\u00e7entik derinli\u011fini azaltmak i\u00e7in faydal\u0131 oldu\u011fu ve eriyik s\u0131cakl\u0131\u011f\u0131 220\u2103'den 250\u2103'ye \u00e7\u0131kar\u0131ld\u0131\u011f\u0131nda V-\u00e7entik derinli\u011finin 7\u03bcm'den 3\u03bcm'ye d\u00fc\u015ft\u00fc\u011f\u00fc kan\u0131tlanm\u0131\u015ft\u0131r. <\/p>\n

The effect of temperature on the tensile capacity of melt marks of PA66 injection molded products containing 33% glass fiber reinforcement was studied and found that: the tensile strength of specimens with and without melt marks increased with the increase of melt temperature.<\/p>\n

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

S\u0131cakl\u0131k de\u011fi\u015fiminin kaynak ek yeri izlerinin gerilme mukavemeti \u00fczerindeki etkisi do\u011frusal de\u011fildir ve kaynak ek yeri izlerinin gerilme mukavemeti, s\u0131cakl\u0131k nispeten d\u00fc\u015f\u00fck oldu\u011funda (70 \u2103 gibi) s\u0131cakl\u0131k art\u0131\u015f\u0131yla \u00f6nemli \u00f6l\u00e7\u00fcde de\u011fi\u015fir; <\/p>\n

Ancak, s\u0131cakl\u0131k belirli bir dereceye kadar y\u00fckseldi\u011finde bu de\u011fi\u015fim nispeten sabittir.<\/p>\n

Benzer sonu\u00e7lar PA66 (35% cam elyaf takviyeli) ile ABS kullan\u0131larak yap\u0131lan deneyler i\u00e7in de elde edilmi\u015ftir. <\/p>\n

Using simulations it was found that mold temperature and melt temperature of the injection molding machine did not have the same effect on the strength of weld marks formed by different materials.<\/p>\n

Deneyler ve sim\u00fclasyonlar\u0131n bir kombinasyonu kullan\u0131larak, enjeksiyon kal\u0131plama i\u015flemi parametreleri aras\u0131nda, eriyik s\u0131cakl\u0131\u011f\u0131n\u0131n ABS plastik par\u00e7alar\u0131n kaynak ek yeri izlerinin mukavemeti \u00fczerinde en b\u00fcy\u00fck etkiye sahip oldu\u011fu bulunmu\u015ftur.\u00a0<\/p>\n

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b. Enjeksiyon bas\u0131nc\u0131 ve tutma bas\u0131nc\u0131n\u0131n etkisi<\/span><\/h3>\n

Injection pressure is an important factor in the filling and molding of plastic melt. Its role is to overcome the resistance of plastic melt when it flows in the barrel, nozzle, pouring system, and cavity, to give the plastic melt sufficient filling speed, and to be able to compact the melt to ensure the quality of injection molded products.<\/p>\n

Enjeksiyon bas\u0131nc\u0131n\u0131n art\u0131r\u0131lmas\u0131, ak\u0131\u015f kanal\u0131 direncinin \u00fcstesinden gelmeye ve bas\u0131nc\u0131 eriyik cephesine aktarmaya yard\u0131mc\u0131 olur, b\u00f6ylece eriyik kaynak i\u015faretinde y\u00fcksek bas\u0131n\u00e7la kayna\u015ft\u0131r\u0131labilir ve kaynak i\u015faretindeki yo\u011funlu\u011fu art\u0131rabilir, b\u00f6ylece kaynak i\u015faretinin mukavemeti art\u0131r\u0131labilir.<\/p>\n

Tutma bas\u0131nc\u0131n\u0131n artt\u0131r\u0131lmas\u0131 sadece eriyik molek\u00fcler zincirinin hareketine daha fazla kinetik enerji sa\u011flamakla kalmaz, ayn\u0131 zamanda iki eriyik telinin kar\u015f\u0131l\u0131kl\u0131 ba\u011flanmas\u0131n\u0131 te\u015fvik eder, b\u00f6ylece kaynak izi alan\u0131n\u0131n yo\u011funlu\u011funu ve kaynak izinin mukavemetini artt\u0131r\u0131r.\u00a0<\/p>\n

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c. Enjeksiyon h\u0131z\u0131 ve enjeksiyon s\u00fcresinin etkisi<\/span><\/h3>\n

Enjeksiyon h\u0131z\u0131n\u0131n art\u0131r\u0131lmas\u0131 ve enjeksiyon s\u00fcresinin k\u0131salt\u0131lmas\u0131, eriyik cepheleri birle\u015fmeden \u00f6nceki ak\u0131\u015f s\u00fcresini azaltacak, \u0131s\u0131 kayb\u0131n\u0131 azaltacak ve kesme \u0131s\u0131s\u0131 olu\u015fumunu art\u0131racak, b\u00f6ylece eriyik viskozitesi azalacak ve ak\u0131\u015fkanl\u0131k artacak, b\u00f6ylece kaynak izlerinin mukavemeti artacakt\u0131r.<\/p>\n

Kaynak ek yeri izlerinin mukavemeti enjeksiyon s\u00fcresine \u00e7ok duyarl\u0131d\u0131r ve enjeksiyon s\u00fcresi azald\u0131k\u00e7a artacakt\u0131r.<\/p>\n

Bununla birlikte, enjeksiyon h\u0131z\u0131 \u00e7ok b\u00fcy\u00fckt\u00fcr ve plastik par\u00e7alar\u0131n performans\u0131n\u0131 ciddi \u015fekilde etkileyen t\u00fcrb\u00fclans (eriyik kopmas\u0131) \u00fcretmek kolayd\u0131r. <\/p>\n

Genel olarak, kaynak hatt\u0131 enjeksiyon kal\u0131plama<\/a> d\u00fc\u015f\u00fck bas\u0131n\u00e7ta ve yava\u015f h\u0131zda yap\u0131lmal\u0131 ve daha sonra plastik enjeksiyon kal\u0131plama h\u0131z\u0131 kal\u0131planan par\u00e7an\u0131n \u015fekline g\u00f6re ayarlanmal\u0131d\u0131r.<\/p>\n

Uygulamada, \u00fcretim d\u00f6ng\u00fcs\u00fcn\u00fc k\u0131saltmak ve t\u00fcrb\u00fclanstan ka\u00e7\u0131nmak i\u00e7in, orta ila y\u00fcksek enjeksiyon h\u0131z\u0131 daha s\u0131k kullan\u0131l\u0131r.\u00a0<\/p>\n

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

Enjeksiyon h\u0131z\u0131, kavitedeki eriyi\u011fin ak\u0131\u015f davran\u0131\u015f\u0131n\u0131n yan\u0131 s\u0131ra kavitedeki bas\u0131n\u00e7 ve eriyik s\u0131cakl\u0131\u011f\u0131n\u0131 ve \u00fcr\u00fcn\u00fcn performans\u0131n\u0131 etkiler.<\/p>\n

Enjeksiyon h\u0131z\u0131 b\u00fcy\u00fckt\u00fcr, kal\u0131p d\u00f6k\u00fcm sisteminden ge\u00e7en eriyik ve bo\u015fluk ak\u0131\u015f h\u0131z\u0131 da b\u00fcy\u00fckt\u00fcr, malzeme ne kadar g\u00fc\u00e7l\u00fc kesilirse, s\u00fcrt\u00fcnme \u0131s\u0131s\u0131 o kadar b\u00fcy\u00fck olur, s\u0131cakl\u0131k y\u00fckselir, viskozite azal\u0131r, malzeme s\u00fcreci de uzar, bo\u015fluk bas\u0131nc\u0131 da artar, \u00fcr\u00fcn kaynak izlerinin mukavemeti de artar. <\/p>\n

Buna ek olarak, par\u00e7alar\u0131n tek tip duvar kal\u0131nl\u0131\u011f\u0131 \u00e7ok farkl\u0131 oldu\u011funda, s\u0131v\u0131 ak\u0131\u015f\u0131 enjeksiyon kal\u0131b\u0131<\/a> Diren\u00e7 farkl\u0131 oldu\u011funda bo\u015fluk, duvar kal\u0131nl\u0131\u011f\u0131ndaki diren\u00e7 k\u00fc\u00e7\u00fckt\u00fcr, ak\u0131\u015f h\u0131z\u0131 h\u0131zl\u0131d\u0131r ve ince duvardaki diren\u00e7 b\u00fcy\u00fckt\u00fcr, ak\u0131\u015f h\u0131z\u0131 yava\u015ft\u0131r.<\/p>\n

Ak\u0131\u015f h\u0131z\u0131ndaki bu farkl\u0131l\u0131k nedeniyle, farkl\u0131 duvar kal\u0131nl\u0131klar\u0131ndan gelen eriyik, farkl\u0131 yak\u0131nsama ak\u0131\u015f h\u0131zlar\u0131 ile ve son olarak kaynak izlerinin olu\u015fumunun yak\u0131nsamas\u0131nda.<\/p>\n

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Kaynak izleri plastik par\u00e7alar\u0131n kalitesini etkileyen \u00f6nemli bir fakt\u00f6rd\u00fcr. Ara\u015ft\u0131rma, ayn\u0131 i\u015flem ko\u015fullar\u0131 alt\u0131nda, kaynak hatt\u0131 alan\u0131n\u0131n mukavemetinin orijinal malzemenin sadece 10-92%'si oldu\u011funu ve bunun da enjeksiyonla kal\u0131planm\u0131\u015f \u00fcr\u00fcnlerin normal kullan\u0131m\u0131n\u0131 ciddi \u015fekilde etkiledi\u011fini ortaya koymu\u015ftur. Bu ve di\u011fer enjeksiyon kal\u0131plama kusurlar\u0131ndan ka\u00e7\u0131nmak t\u00fcm [...]<\/p>","protected":false},"author":1,"featured_media":5552,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"Causes and solutions of weld marks in injection | ZetarMold","_seopress_titles_desc":"Discover expert insights on causes solutions weld marks injection molded parts from ZetarMold. We provide professional injection molding services with DFM","_seopress_robots_index":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[42],"tags":[],"meta_box":{"post-to-quiz_to":[]},"_links":{"self":[{"href":"https:\/\/zetarmold.com\/tr\/wp-json\/wp\/v2\/posts\/12183"}],"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=12183"}],"version-history":[{"count":0,"href":"https:\/\/zetarmold.com\/tr\/wp-json\/wp\/v2\/posts\/12183\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/zetarmold.com\/tr\/wp-json\/wp\/v2\/media\/5552"}],"wp:attachment":[{"href":"https:\/\/zetarmold.com\/tr\/wp-json\/wp\/v2\/media?parent=12183"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zetarmold.com\/tr\/wp-json\/wp\/v2\/categories?post=12183"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zetarmold.com\/tr\/wp-json\/wp\/v2\/tags?post=12183"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}