{"id":57891,"date":"2021-07-19T10:34:26","date_gmt":"2021-07-19T06:04:26","guid":{"rendered":"https:\/\/polymervapooshesh.ir\/en\/?p=57891"},"modified":"2021-09-18T13:55:29","modified_gmt":"2021-09-18T09:25:29","slug":"engel-more-recyclate-in-sandwich-components","status":"publish","type":"post","link":"https:\/\/polymervapooshesh.ir\/en\/engel-more-recyclate-in-sandwich-components\/","title":{"rendered":"Engel: More recyclate in sandwich components"},"content":{"rendered":"
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Baspar \/ Iranpolymer<\/strong> <\/em>The new coinjection process, which Engel, Schwertberg (Austria) developed together with Top Grade Molds, Mississauga (Canada), enables a high proportion of recycled material to be completely enclosed in new goods in the manufacture of buckets and is therefore superior to conventional sandwich injection molding processes. The new process was able to demonstrate its advantages in the production of 5-gallon buckets during the Engel live e-symposium in June.\u00a0In combination with the\u00a0new duo speed injection molding machine, very short cycle times are achieved.<\/p>\n

Various countries already stipulate a minimum proportion of recycled material for certain products.\u00a0In the western United States, for example, some market areas for buckets require a 25% share.\u00a0In addition, there is the requirement that the dark recycled material is not visible at the injection point either.\u00a0These trends drove the development of the new coinjection process.\u00a0With a recyclate content of more than 30%, the 5-gallon buckets produced during the Engel Symposium exceed the American standards, which are very strict by international standards.<\/p>\n

Short cycle times<\/strong><\/p>\n

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Engel’s development partner is the toolmaker Top Grade Molds, which specializes in packaging applications.\u00a0The bucket tool for the world premiere is provided by the US bucket manufacturer M&M Industries, Chattanooga (Tennessee).\u00a0It runs on an Engel duo speed injection molding machine that Engel developed specifically for the requirements of producers of buckets as well as storage and transport containers.\u00a0This new type of large machine combines productivity and efficiency with short cycle times.\u00a0Coinjection ensures just as short cycle times as the production of the buckets in conventional one-component injection molding.<\/p>\n

Coinjection enables the processed material to be concentrated in the component core and completely enclosed in a layer of new material.\u00a0In order to be able to recycle the sandwich products at the end of their useful life, new goods and recycled material are made of the same plastic.\u00a0For the 5-gallon buckets, HDPE is processed, with the recyclate coming from post-consumer collections.<\/p>\n

High product quality<\/strong><\/p>\n

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The challenge with sandwich injection molding is to achieve a high proportion of recycled material without sacrificing product quality and performance.\u00a0One development focus was therefore on merging the two plastic melts in the mold without mixing them in the melt flow beforehand.\u00a0As a result, close to the cavity, directly at the injection point, a valve gate system is used to switch from recycled material to new material.<\/p>\n

5-gallon buckets are used universally in North America for a wide variety of products.\u00a0Since the two material fractions – core and skin material – are strictly separated from each other in the manufacturing process and the recyclate is also completely enclosed by new material at the injection point, the new coinjection process is also of interest to the food industry.<\/p>\n

With the presentation of the new coinjection process, Engel is further strengthening its competence in the production of sandwich products with a core made from recycled material.\u00a0While the\u00a0skinmelt process presented at K 2019\u00a0is mainly used for the production of technical parts as well as logistics\u00a0boxes\u00a0and pallets, the co-injection developed with Top Grade Molds meets the requirements of manufacturers of buckets and other smaller packaging products and is also suitable for Suitable for multi-cavity molds.<\/p>\n","protected":false},"excerpt":{"rendered":"

Baspar \/ Iranpolymer The new coinjection process, which Engel, Schwertberg (Austria) developed together with Top Grade Molds, Mississauga (Canada), enables a high proportion of recycled material to be completely enclosed in new goods in the manufacture of buckets and is therefore superior to conventional sandwich injection molding processes. The new process was able to demonstrate …<\/p>\n","protected":false},"author":5,"featured_media":57892,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","footnotes":""},"categories":[69],"tags":[36299,929,1394,2073,36298],"class_list":["post-57891","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news-en","tag-coinjection","tag-engel","tag-injection","tag-recycle","tag-sandwich-component"],"_links":{"self":[{"href":"https:\/\/polymervapooshesh.ir\/en\/wp-json\/wp\/v2\/posts\/57891","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/polymervapooshesh.ir\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/polymervapooshesh.ir\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/polymervapooshesh.ir\/en\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/polymervapooshesh.ir\/en\/wp-json\/wp\/v2\/comments?post=57891"}],"version-history":[{"count":0,"href":"https:\/\/polymervapooshesh.ir\/en\/wp-json\/wp\/v2\/posts\/57891\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/polymervapooshesh.ir\/en\/wp-json\/wp\/v2\/media\/57892"}],"wp:attachment":[{"href":"https:\/\/polymervapooshesh.ir\/en\/wp-json\/wp\/v2\/media?parent=57891"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/polymervapooshesh.ir\/en\/wp-json\/wp\/v2\/categories?post=57891"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/polymervapooshesh.ir\/en\/wp-json\/wp\/v2\/tags?post=57891"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}