the injection of the thin wall parts

yhwhk76

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[此贴子已经被works007于2004-12-9 11:38:01编辑过]

yhwhk76

<P 0cm 0cm 0pt"><B><FONT face="Times New Roman">Injection moulding of thin wall article<p></p></FONT></B></P><P 0cm 0cm 0pt"><FONT face="Times New Roman"><B>1. Introduction</B> </FONT></P><P><FONT face=宋体 size=3>In moulding thin wall articles, a high injection speed ensures the melt does not freeze before the cavity is completely filled. Injection moulding machines below 150-ton clamping force have injection speed of above 100 mm/s, which is higher than that of bigger machines. Injection speed of more than 800 mm/s has been claimed by some Japanese injection moulding machine manufacturers. Three methods to increase injection moulding speed are described. They are
1. increased pump size,
2. regeneration/variable injection cylinder size,
3. accumulator. </FONT></P>

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