1.0Plastform | Kina formtillverkarehttps://www.plasticmoldco.com/svrich600338<blockquote class="wp-embedded-content" data-secret="2c4QGEaxNw"><a href="https://www.plasticmoldco.com/sv/2018/10/16/krympning-och-skevhet/">Krympning och skevhet</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.plasticmoldco.com/sv/2018/10/16/krympning-och-skevhet/embed/#?secret=2c4QGEaxNw" width="600" height="338" title=""Krympning och varpning" - Plastform | Kina mögeltillverkare" data-secret="2c4QGEaxNw" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript"> /* <![CDATA[ */ /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); /* ]]> */ </script>[et_pb_section bb_built=”1″ fullwidth=”off” specialty=”off”][et_pb_row][et_pb_column type=”4_4″][et_pb_text _builder_version=”3.10.2″ border_width_all=”3px” border_color_all=”#e5e5e5″] Why do they occur? Shrinkage is inherent in the injection molding process. Shrinkage occurs because the density of polymer varies from the processing temperature to the ambient temperature (see Specific volume (pvT diagram)). During injection molding, the variation in shrinkage both globally and through the cross section […]https://web.archive.org/web/20141001102803im_/http://www.moldchina.org/wp-content/uploads/2011/10/Shrinkage-and-warpage.gif