{"id":352,"date":"2017-08-25T10:02:14","date_gmt":"2017-08-25T02:02:14","guid":{"rendered":"http:\/\/www.chinainjectionmold.com\/random-international-rain-room\/"},"modified":"2017-08-25T10:03:37","modified_gmt":"2017-08-25T02:03:37","slug":"random-international-rain-room","status":"publish","type":"post","link":"https:\/\/www.chinainjectionmold.com\/blog\/random-international-rain-room\/","title":{"rendered":"Random International: Rain Room"},"content":{"rendered":"<p>Check out these injection moulding images:<\/p>\n<p><strong>Random International: Rain Room<\/strong><br \/>\n<img decoding=\"async\" alt=\"\"injection moulding\"\" src=\"https:\/\/www.chinainjectionmold.com\/blog\/wp-content\/uploads\/2017\/08\/8071219501_bbfa4a3bd0.jpg\" width=\"400\"\/><br \/>\n<i>Image by <a href=\"http:\/\/www.flickr.com\/photos\/48499920@N03\/8071219501\">Jon&#8217;sTripBook<\/a><\/i><br \/>\nOlympus \u00b5[mju:]-II<br \/>\nKodak Ultramax 400<\/p>\n<p><strong>Injection-moulded protractor<\/strong><br \/>\n<img decoding=\"async\" alt=\"\"injection moulding\"\" src=\"https:\/\/www.chinainjectionmold.com\/blog\/wp-content\/uploads\/2017\/08\/3840240677_4d683c6526.jpg\" width=\"400\"\/><br \/>\n<i>Image by <a href=\"http:\/\/www.flickr.com\/photos\/41639353@N08\/3840240677\">CORE-Materials<\/a><\/i><br \/>\n<a href=\"http:\/\/www.doitpoms.ac.uk\" rel=\"nofollow\">DoITPoMS<\/a>, University of Cambridge<\/p>\n<p>The colours in the image are the result of birefringence and relate to the residual strain in the polystyrene.  The pattern of strain is indicative of the flow of material during the injection process and it highlights the injection point (at 152 degrees on the outer scale), and two &#8216;weld lines&#8217; (at 338 and on the central bar) where two distinct flows of material meet.  The weld line is a common point of failure because there is limited intermixing of the two fronts during the time allowed.<\/p>\n<p><b>System<\/b><br \/>\nPolystyrene (PS)<\/p>\n<p><b>Composition<\/b><br \/>\nNot specified<\/p>\n<p><b>Reaction<\/b><\/p>\n<p><b>Processing<\/b><br \/>\nPolystyrene was injected into a mould from a single point and has flowed round the component to meet at two noticeable &#8216;weld lines&#8217; <\/p>\n<p><b>Applications<\/b><br \/>\nPolystyrene is hard and inexpensive and its use is very widespread.  CD cases and clear plastic cups are common examples.  Domestic appliance casings are also typically made from PS<\/p>\n<p><b>Sample preparation<\/b><\/p>\n<p><b>Technique<\/b><br \/>\nCross-polarised light microscopy<\/p>\n<p><b>Contributor<\/b><br \/>\nJ A Curran<\/p>\n<p><b>Organisation<\/b><br \/>\nDepartment of Materials Science and Metallurgy, University of Cambridge<\/p>\n<p><a href=\"http:\/\/www.doitpoms.ac.uk\/miclib\/full_record.php?id=576\" rel=\"nofollow\">View micrograph in DoITPoMS website<\/a><\/p>\n<p><strong>Injection-moulded protractor<\/strong><br \/>\n<img decoding=\"async\" alt=\"\"injection moulding\"\" src=\"https:\/\/www.chinainjectionmold.com\/blog\/wp-content\/uploads\/2017\/08\/3840240443_9197d4f8fd.jpg\" width=\"400\"\/><br \/>\n<i>Image by <a href=\"http:\/\/www.flickr.com\/photos\/41639353@N08\/3840240443\">CORE-Materials<\/a><\/i><br \/>\n<a href=\"http:\/\/www.doitpoms.ac.uk\" rel=\"nofollow\">DoITPoMS<\/a>, University of Cambridge<\/p>\n<p>The colours in the image are the result of birefringence and relate to the residual strain in the polystyrene.  The pattern of strain is indicative of the flow of material during the injection process and it highlights a &#8216;weld line&#8217; where two distinct flows of material meet.  The weld line is a common point of failure because there is limited intermixing of the two fronts during the time allowed.<\/p>\n<p><b>System<\/b><br \/>\nPolystyrene (PS)<\/p>\n<p><b>Composition<\/b><br \/>\nNot specified<\/p>\n<p><b>Reaction<\/b><\/p>\n<p><b>Processing<\/b><br \/>\nPolystyrene was injected into a mould from a single point and has flowed round the component to meet at a noticeable &#8216;weld line&#8217; <\/p>\n<p><b>Applications<\/b><br \/>\nPolystyrene is hard and inexpensive and its use is very widespread.  CD cases and clear plastic cups are common examples.  Domestic appliance casings are also typically made from PS<\/p>\n<p><b>Sample preparation<\/b><\/p>\n<p><b>Technique<\/b><br \/>\nCross-polarised light microscopy<\/p>\n<p><b>Contributor<\/b><br \/>\nJ A Curran<\/p>\n<p><b>Organisation<\/b><br \/>\nDepartment of Materials Science and Metallurgy, University of Cambridge<\/p>\n<p><a href=\"http:\/\/www.doitpoms.ac.uk\/miclib\/full_record.php?id=575\" rel=\"nofollow\">View micrograph in DoITPoMS website<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Check out these injection moulding images: Random International: Rain Room Image by Jon&#8217;sTripBook Olympus \u00b5[mju:]-II Kodak Ultramax 400 Injection-moulded protractor Image by CORE-Materials DoITPoMS, University of Cambridge The colours in the image are the result of birefringence and relate to the residual strain in the polystyrene. The pattern of strain is indicative of the flow [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":353,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[311,312,310,313],"class_list":["post-352","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-plastic-mould","tag-international","tag-rain","tag-random","tag-room"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Random International: Rain Room<\/title>\n<meta name=\"description\" content=\"Random International: Rain Room posted by injection mold china maker and plastic molding chinese service company.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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