ÿþ<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> <title>The making process of Plastic injection moulding--Higrade Moulds|china mould/mold company|chinese mould/mold supplier|china plastic mould/mold|chinese plastic injection mould/mold|china stamping die|stamping part|punching die</title> <meta name="description" content="Qingdao Higrade Moulds & Products Co., Ltd specializes in manufacture and design of injection mold and sheetmetal mold, as well as production of plastic parts and sheet metal parts"> <meta name="keywords" content="Higrade, Higrade Mold, china mould/mold company,chinese mould/mold supplier,china plastic mould/mold,chinese plastic injection mould/mold,china stamping die,stamping part,punching die,Injection Mold, Sheet Metal Mold, Plastic Parts, Sheet Metal Parts,"> <link href="../../css.css" rel="stylesheet" type="text/css"> <script> function autoResize() { try { document.all["test"].style.height=test.document.body.scrollHeight } catch(e){} } </script> </head> <body leftmargin="0" topmargin="0" marginwidth="0" marginheight="0" rightmargin="0" bottommargin="0" style="background-image:none;"> <!-- ImageReady Slices (*gh˜˜-1.psd) --> <table width="1003" border="0" align="center" cellpadding="0" cellspacing="0"> <tr> <td> <table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td><img src="../../images/top.jpg" width="1003" height="84" border="0" usemap="#Map"></td> </tr> <map name="Map"><area shape="rect" coords="801,40,861,68" href="../../cn/index.asp"> <area shape="rect" coords="874,37,953,69" href="../../en/index.asp"> </map> </table> </td> </tr> <tr> <td> <table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td><object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,19,0" width="1003" height="184"> <param name="movie" value="../../images/01.swf"> <param name="quality" value="high"> <embed src="../../images/01.swf" quality="high" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" width="1003" height="184"></embed> </object></td> </tr> </table> </td> </tr> <tr> <td height=4 bgcolor="#FFFFFF"></td> </tr> <tr> <td height="38" background="../../images/menu_bg.jpg"> <div align="center" class="STYLE3_5"> <table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="85%"><div align="center" class="STYLE10"><strong><a href="http://www.higrademould.com" class="a1">Home</a>&nbsp; /&nbsp; <a href="../../en/gsgk.asp" class="a1">About Company</a>&nbsp; /&nbsp; <a href="../../en/cpzs.asp" class="a1">Products</a>&nbsp; /&nbsp; <a href="../../en/yzsfw.asp" class="a1">Full Service</a>&nbsp; /&nbsp; <a href="../../en/zlbz.asp" class="a1">Quality Assurance</a>&nbsp; /&nbsp; <a href="../../en/jzl.asp" class="a1">Competitive Lead Time</a>&nbsp; /&nbsp; <a href="../../en/lyb.asp" class="a1">Messages</a>&nbsp; /&nbsp; <a href="../../en/lxwm.asp" class="a1">Contact Us</a></strong></div></td> <td width="15%"><div align="center" class="STYLE7"> <SCRIPT language=JavaScript><!-- Begin var enable=0; today=new Date(); var date; var time_start = new Date(); var clock_start = time_start.getTime(); date=(today.getYear())+"t^"+(today.getMonth()+1)+"g"+today.getDate()+"åe "; document.write("<span style='font-size: 9pt;color:#ffffff;'>"+date); // --></SCRIPT> </div></td> </tr> </table> </div> </td> </tr> <tr> <td height="200" bgcolor="#FFFFFF"><table width="100%" border="0" cellspacing="0" cellpadding="5"> <tr> <td width="240" valign="top"> <iframe id=test style="height:expression(1); aho:expression(autoResize())" src="../../en/left1.asp" scrolling="no" frameborder="0" width="248"></iframe> </td> <td valign="top"><table width="100%" border="0" cellspacing="1" cellpadding="3"> <tr> <td><table width="96%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr> <td height="40" valign="bottom" class="STYLE6_2"><table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="5%"><img src="../../images/qyjj_1-8.jpg" width="28" height="22"></td> <td width="95%" valign="bottom"><strong class="STYLE3_5">Company News</strong></td> </tr> </table> </td> </tr> <tr> <td height="10" valign="top" class="STYLE6_2"><hr style="margin:0; padding:0"></td> </tr> <tr> <td width="64%" class="STYLE6_2" height="6"></td> </tr> </table> <table width="100%" border="0" align="center" cellpadding="0" cellspacing="0" class="STYLE3_5"> <tr> <td height="35"><div align="center"><strong>The making process of Plastic injection moulding</strong></div></td> </tr> <tr> <td><div align="center"> <table width="90%" border="0" cellspacing="0" cellpadding="0"> <tr> <td><PRE><FONT face=Arial size=2>Plastic injection moulding is a quite important field in manufacturing process. There are many plastic products that produced by injection moulding. Generally, the injection &nbsp; moulding process consists of four stages which are mould design, mould fabrication, modification and machine setting. The explanation of these stages are shown below: </FONT></PRE><PRE><FONT face=Arial size=2>(a) Mould design In design process, the mould designer should be consider the factor such as machine capability, cooling channel position, gate size, etc. </FONT></PRE><PRE><FONT face=Arial size=2>(b) Mould fabrication The mould maker should be know which type of machining process is more suitable. Besides that, the process planning also required for saving the time.</FONT></PRE><PRE><FONT face=Arial size=2>(c) Modification Not every mould that design and fabricate can be produced the product successfully. Thus, some modification must be made on the mould.</FONT></PRE><PRE><FONT face=Arial size=2>(d) Machine setting Machine setting must be made to produce the product that have minimum defect.</FONT></PRE><PRE><FONT face=Arial size=2>The product that produced will do the experiment on warpage defect. By using Taguchi method, nine trials have been run. The optimum parameters that can minimize the warpage defect are: melt temperature (240 °C), filling time (0.5 s), packing pressure (90%) and packing time (0.6 s). Among these factors, the melt temperature is the most effective factor. However, the filling time is not a significant factor.</FONT></PRE><PRE><FONT face=Arial size=2>&nbsp;</FONT></PRE> <TABLE cellPadding=0 width="100%" border=0> <TBODY> <TR> <TD> <DIV align=center><A href="http://www.higrademould.com/admin/news/newsen158.htm" target=_blank>Plastic mold industry needs to be developed</A></DIV></TD> <TD width="33%"> <DIV align=center>2010-5-18</DIV></TD></TR> <TR> <TD> <DIV align=center><A href="http://www.higrademould.com/admin/news/newsen157.htm" target=_blank>Five strategic priorities</A></DIV></TD> <TD width="33%"> <DIV align=center>2010-5-11</DIV></TD></TR> <TR> <TD> <DIV align=center><A href="http://www.higrademould.com/admin/news/newsen156.htm" target=_blank>CAD / CAE / CAM technology gap</A></DIV></TD> <TD width="33%"> <DIV align=center>2010-5-4</DIV></TD></TR> <TR> <TD> <DIV align=center><A href="http://www.higrademould.com/admin/news/newsen155.htm" target=_blank>Die high speed milling</A></DIV></TD> <TD width="33%"> <DIV align=center>2010-4-27</DIV></TD></TR> <TR> <TD> <DIV align=center><A href="http://www.higrademould.com/admin/news/newsen154.htm" target=_blank>Single process bending mode</A></DIV></TD> <TD width="33%"> <DIV align=center>2010-4-20</DIV></TD></TR> <TR> <TD> <DIV align=center><A href="http://www.higrademould.com/admin/news/newsen152.htm" target=_blank>Create the conditions for mold</A></DIV></TD> <TD width="33%"> <DIV align=center>2010-4-13</DIV></TD></TR> <TR> <TD> <DIV align=center><A href="http://www.higrademould.com/admin/news/newsen151.htm" target=_blank>Shanghai Yangtze River Delta and die industry originated</A></DIV></TD> <TD width="33%"> <DIV align=center>2010-4-6</DIV></TD></TR> <TR> <TD> <DIV align=center><A href="http://www.higrademould.com/admin/news/newsen137.htm" target=_blank>Injection Mold history</A></DIV></TD> <TD width="33%"> <DIV align=center>2010-3-30</DIV></TD></TR> <TR> <TD> <DIV align=center><A href="http://www.higrademould.com/admin/news/newsen136.htm" target=_blank>Mold design and manufacturing </A></DIV></TD> <TD width="33%"> <DIV align=center>2010-3-23</DIV></TD></TR> <TR> <TD> <DIV align=center><A href="http://www.higrademould.com/admin/news/newsen135.htm" target=_blank>Mold history</A></DIV></TD> <TD width="33%"> <DIV align=center>2010-3-16</DIV></TD></TR> <TR> <TD> <DIV align=center><A href="http://www.higrademould.com/admin/news/newsen128.htm" target=_blank>Your Guide To Plastic Molding</A></DIV></TD> <TD width="33%"> <DIV align=center>2010-3-8</DIV></TD></TR> <TR> <TD> <DIV align=center><A href="http://www.higrademould.com/admin/news/newsen126.htm" target=_blank>History of Plastic Injection Moulding</A></DIV></TD> <TD width="33%"> <DIV align=center>2010-3-1</DIV></TD></TR></TBODY></TABLE> <DIV>&nbsp;</DIV></td> </tr> </table> </div></td> </tr> <tr> <td><div align="center"> <table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="75%" height="35" align="left"><div align="center">Author:Carol Liu</div></td> <td align="center"><div align="center">Time:2010-6-8</div></td> </tr> </table> </div></td> </tr> </table> </td> </tr> </table></td> </tr> </table></td> </tr> <tr> <td height="63" bgcolor="#EAEAEA"> <table width="98%" border="0" cellspacing="1" cellpadding="1"> <tr> <td colspan="3" height=3></td> </tr> <tr> <td width="5%"><div align="center"><img src="../../images/bottom_block.jpg" width="8" height="35"></div></td> <td width="86%" class="STYLE3_2">Copyright&nbsp;&copy;&nbsp;:Higrade(Qingdao) Moulds &amp; Products Co., Ltd.&nbsp;&nbsp;&nbsp;&nbsp;Add: No.1009,Chongqing Road,Qingdao City,Shandong Prov.,China<BR> Tel:+86-532-84819378&nbsp;&nbsp;&nbsp;&nbsp;Fax:+86-532-84819379&nbsp;&nbsp;&nbsp;&nbsp;Website:<A href="http://www.higrademould.com">http://www.higrademould.com</A>&nbsp;&nbsp;&nbsp;&nbsp;E-mail:<A href="mailto:higrademould@vip.163.com">higrademould@vip.163.com</A></td> <td width="9%"><a href="#" target="_blank"><img src="../../beiannew/logo.gif" width="31" height="32" border="0"></a><a href="http://218.57.19.118/" target="_blank"><img src="../../beiannew/01.gif" width="28" height="35" border="0"></a></td> </tr> </table> </td> </tr> <tr> <td height="10" bgcolor="#FFFFFF"></td> </tr> </table> <table width="1003" border="0" cellspacing="0" cellpadding="0"> <tr> <td><div align="center"></div></td> </tr> </table> <!-- End ImageReady Slices --> </body> </html>