IDES: Plastics Industry Articles

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height: 1px"></td></tr></table> </form> <span>  <a href="/web/20090217045938/http://www.ides.com/default.asp" class="tiny">Home</a><a class="nolinksm"> > </a><a class="nolinksm">Plastics Industry Articles</a></span> <table cellpadding="1" border="0"> <tbody> <tr valign="top"> <td width="828"><table width="100%" cellpadding="0" cellspacing="3"> <tbody> <tr> <td width="100%" height="26" colspan="3" valign="center" class="idesh1"> Plastics Industry Articles by Topic</td> </tr> <tr valign="top"> <td height="24" colspan="3" valign="middle" bgcolor="#E7EFFF"><table width="100%" cellspacing="0" cellpadding="5"> <tr> <td width="50%" height="30"> <script language="JAVASCRIPT" src="https://web.archive.org/web/20090217045938js_/http://services.ides.com/Advertising/banman.asp?ZoneID=99&Task=Get&Browser=NETSCAPE4&PageID=49888"></script> </td> <td width="50%"><div align="right"> <script type="text/javascript"> addthis_pub = 'ducati38'; addthis_logo = 'https://web.archive.org/web/20090217045938/http://www.ides.com/images/ideslogo.gif'; addthis_logo_background = 'FFFFFF'; addthis_logo_color = 'FFFFFF'; addthis_brand = 'ides.com'; addthis_options = 'email, favorites, google, digg, delicious, more'; </script> <a href="https://web.archive.org/web/20090217045938/http://www.addthis.com/bookmark.php" onmouseover="return addthis_open(this, '', '[URL]', '[TITLE]')" onmouseout="addthis_close()" onclick="return addthis_sendto()"><img src="https://web.archive.org/web/20090217045938im_/http://www.ides.com/images/promo/bookmark_share.gif" width="125" height="16" border="0" alt=""/></a><br/><a href="https://web.archive.org/web/20090217045938/http://ui.constantcontact.com/sa/fp.jsp?plat=i&p=f&m=yjugkwn6"></a> </div></td> </tr> </table> </td> </tr> <tr valign="top"> <td colspan="3"> <p align="center"><span class="idesGrey">  <script language="javascript" type="text/javascript">  </script> <noscript> <a href="https://web.archive.org/web/20090217045938/http://services.ides.com/Advertising/a.aspx?ZoneID=85&Task=Click&Mode=HTML&SiteID=1&PageID=78286" target="_blank"> <img src="https://web.archive.org/web/20090217045938im_/http://services.ides.com/Advertising/a.aspx?ZoneID=85&Task=Get&Mode=HTML&SiteID=1&PageID=78286" width="728" height="90" border="0" alt=""/></a> </noscript>  </span></p> <p>  <a href="design/default.asp" class="body_bold">Design</a></p> <blockquote> <p><a href="design/2008/sepe-part-97.asp">Moisture in Nylon – What's the Right Number?</a><br> This article was inspired by a colleague of mine, someone I have worked with for a long time. We have been coworkers in the same company, we have worked for competing molding companies, and now we circulate in overlapping spheres within the industry—he at an OEM that purchases a lot of plastic parts, and I as an independent consultant who works with OEMs that purchase a lot of plastic parts. As such, we both interact with processors and material suppliers. <span class="idesGrey">Michael Sepe, Material Analyst</span></p> <p><a href="design/2008/sepe_03.asp">Metal Replacement</a><br> In this article we will consider in depth the phenomenon of creep and techniques for arriving at assessments of long-term behavior using accelerated testing methods that shorten the timeline from years to weeks or even days. Any material, when placed under stress, will exhibit a particular deformation or strain. The ratio of this stress to strain is known as the modulus of the material and is understood to be a measurement of a material’s stiffness. </p> <p><a href="design/2008/assembly_tools.asp">Plastics Assembly Tools</a><br> SABIC Innovative Plastics’ website includes newly designed engineering tools that can assist in the design enhancement of applications. Four of these engineering tools can be grouped into a category referred to as Assembly Tools. Some of these tools are very simple in their functionality but can serve a very useful purpose when considering a part that needs to be designed for proper assembly features, and minimizing the risk of part failure in the future.</p> <p><a href="https://web.archive.org/web/20090217045938/http://ides.typepad.com/prospector/2008/04/how-to-search-f.html">How to Search for Unfilled Plastic Materials</a><br> One of our advanced features in Prospector, the Property Search, not only allows you to search for materials with a percent % filler reinforcement specified, such as 30% glass filled, but it also allows you to search for unfilled materials. It’s a pretty simple search to do with the Property Search tool.</p> </blockquote> <p><a href="processing/default.asp" class="body_bold">Processing</a></p> <blockquote> <p><a href="processing/injection-molding/2008/pressure-differential-shrinkage.asp">A Lesson on Pressure Losses and Differential Shrinkage</a><br> This lesson is intended to explain how pressure losses within the mold cavity can result in differential shrinkage in the final molded plastic part.</p> <p><a href="processing/injection-molding/2008/cross-train-equipment.asp">Cross-Training Your Plastics Equipment for Better Productivity</a><br> A simple but effective plan for custom molders. Being competitive in today’s molding industry is more challenging than ever before. Whatever the issue . . . resin costs, China, you name it, this is not your father’s molding industry anymore. </p> </blockquote> <p><a href="materials/default.asp" class="body_bold">Materials</a></p> <blockquote> <p><a href="materials/2008/0108_lifecycle of plastic.asp">The Lifecycle of Plastic - Impacts on Business and the Economy</a><br> As the cost of petrochemicals skyrockets and concern with the environment continues to grow, we ’ll have to think more about plastic’s origins and destinations, both as consumers and as producers of plastic components.</p> <p><a href="materials/2008/0108_plastic_substitution.asp">Ways in which Plastic is Substituted for other Materials</a><br> There ’s nothing new about plastic as a substitute for other materials. From its very beginnings, plastic took the place of whalebone, tortoiseshell, wood, and stone. The reasons for substitution were simple: availability and cost. Mixing up a vat of combustible celluloid had its risks, but they were small compared to those of hunting whales in tiny boats. Plastics were cheap compared to the semiprecious stones they replaced in costume jewelry, and they were easier to work than wood or stone.</p> <p><a href="materials/2007/resinselection_kmetz.asp">The Basics of Resin Selection</a><br> You know there are tools out there to help you pick the right material for your part, but are you up to speed on the terms and technology needed to use them? Here ’s a place to start.</p> </blockquote> <p><a href="simulation/default.asp" class="body_bold">Simulation</a></p> <blockquote> <p><a href="simulation/2008/0319_moldflow_coreshift.asp">Simulation of Core Shift and Injection Molding Machine Clamp Over-Tonnage Using Moldflow Plastics Insight® (MPI®)</a><br> The core shift analysis has the capability to predict the thickness changes due to core deflection, and these thickness changes are carried through to subsequent analyses; so for example, a warpage analysis can be performed to evaluate the part final form, fit and function.</p> <p><a href="simulation/2008/0314_moldflow_mesh.asp">A Mesh By Any Other Name - Is it Still the Same?</a><br> Computer-aided engineering (CAE) simulation of injection molding is a mathematical representation of a physical manufacturing process. As such, there are assumptions and limitations inherent in the software that users must understand in order to obtain the most accurate results.</p> <p><a href="simulation/2008/design_principles_01.asp">Plastics Design Principles: Theory and Concepts</a><br> The Moldflow Design Principles are a set of rules that influence the design of a part and tools to optimize the filling of a part. When these principles are followed, higher quality parts and faster cycle times are the result. Not following these plastics design principles leads to problematic designs.</p> </blockquote> <p><a href="testing/default.asp" class="body_bold">Testing</a></p> <blockquote> <p><a href="testing/2008/zwick-0805.asp">Choosing the Right Extensometer for Every Plastic Materials Testing Application</a><br> In materials and component testing the range of applications where extensometers are used is extremely diverse. As a result, the technical requirements for these devices are multifaceted, and means that there is no single device which satisfies all needs.</p> <p><a href="testing/2008/creep_experiment.asp"><span class="style1">Material Stability and Performance Test</span></a><br> Creep experiments are a valuable method for studying the viscoelastic properties of polymer melts. The zero shear viscosity can be calculated at many temperatures and plotted as a function of temperature.</p> <p><a href="testing/2008/fstr_package.asp"><span class="style1">Frequency Sweep and Temperature Sweep Package</span></a><br> A great test package, for incoming raw material resins, and to determine the viscosity as a function of temperature. In order to successfully predict the processibility of polymer melts, it is important to characterize the viscoelastic properties and the temperature dependency.</p> </blockquote> <p>Visit The Plastics Store™ for more <a href="https://web.archive.org/web/20090217045938/http://store.ides.com/c-14-free-articles.aspx">plastics articles</a> and books covering the following topics: <a href="https://web.archive.org/web/20090217045938/http://store.ides.com/c-15-design.aspx"><br> Design</a>, <a href="https://web.archive.org/web/20090217045938/http://store.ides.com/c-4-processing.aspx">Processing</a>, <a href="https://web.archive.org/web/20090217045938/http://store.ides.com/c-16-materials.aspx">Materials</a>, <a href="https://web.archive.org/web/20090217045938/http://store.ides.com/search.aspx?SearchTerm=Simulation">Simulation</a>, <a href="https://web.archive.org/web/20090217045938/http://store.ides.com/p-462-understanding-plastics-testing.aspx">Testing</a></p> <p align="center">  <script language="javascript" type="text/javascript">  </script> <noscript> <a href="https://web.archive.org/web/20090217045938/http://services.ides.com/Advertising/a.aspx?ZoneID=85&Task=Click&Mode=HTML&SiteID=1&PageID=78286" target="_blank"> <img src="https://web.archive.org/web/20090217045938im_/http://services.ides.com/Advertising/a.aspx?ZoneID=85&Task=Get&Mode=HTML&SiteID=1&PageID=78286" width="728" height="90" border="0" alt=""/></a> </noscript>  </p></td> </tr> </tbody> </table></td> <td width="160"><p>   <script language="javascript" type="text/javascript">  </script> <noscript> <a href="https://web.archive.org/web/20090217045938/http://services.ides.com/Advertising/a.aspx?ZoneID=85&Task=Click&Mode=HTML&SiteID=1&PageID=78286" target="_blank"> <img src="https://web.archive.org/web/20090217045938im_/http://services.ides.com/Advertising/a.aspx?ZoneID=85&Task=Get&Mode=HTML&SiteID=1&PageID=78286" width="160" height="600" border="0" alt=""/></a> </noscript>   </p> </tr> </tbody> </table> <hr width="100%" noshade="noshade" size="1"/> <table cellspacing="0" cellpadding="1" border="0"> <tbody> <tr valign="top"> <td width="913" valign="bottom" style="padding-left: 8px;"> <a href="https://web.archive.org/web/20090217045938/http://services.ides.com/LinkMailer/?I=5460" target="_blank" class="tiny">Tell-a-Friend</a> -  <script type="text/javascript"> addthis_pub = 'ducati38'; addthis_logo = 'https://web.archive.org/web/20090217045938/http://www.ides.com/images/ideslogo.gif'; addthis_logo_background = 'FFFFFF'; addthis_logo_color = 'FFFFFF'; addthis_brand = 'ides.com'; addthis_options = 'email, favorites, google, digg, delicious, more'; </script> <a href="https://web.archive.org/web/20090217045938/http://www.addthis.com/bookmark.php" onmouseover="return addthis_open(this, '', '[URL]', '[TITLE]')" onmouseout="addthis_close()" onclick="return addthis_sendto()" class="tiny">Share This Page</a> <script type="text/javascript" src="https://web.archive.org/web/20090217045938js_/http://s7.addthis.com/js/152/addthis_widget.js"></script>  - <a href="https://web.archive.org/web/20090217045938/http://www.ides.com/advertise/" class="tiny">Advertising</a> - <a href="https://web.archive.org/web/20090217045938/http://www.ides.com/products/" class="tiny">Services</a> - <a href="https://web.archive.org/web/20090217045938/http://store.ides.com/default.aspx" class="tiny">Store</a> - <a href="https://web.archive.org/web/20090217045938/http://www.ides.com/about/" class="tiny">About IDES</a> - <a href="https://web.archive.org/web/20090217045938/http://support.ides.com/" class="tiny">Contact IDES</a><a class="body_md">: 800-788-4668 | 307-742-9227</a> <a href="https://web.archive.org/web/20090217045938/http://support.ides.com/SightMaxAgentInterface/PreChatSurvey.aspx?accountID=2&siteID=2&queueID=4&skipSurvey=no" class="tiny">Chat</a></td> <td width="105" valign="bottom" align="right" style="padding-right: 7px;"><a class="idesGrey">©1986-<script>document.write(new Date().getFullYear());</script> IDES</a></td> </tr> </tbody> </table><script type="text/javascript"> var gaJsHost = (("https:" == document.location.protocol) ? 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IDES: Plastics Industry Articles