注塑模具venting(更新版)
【正文】 red as a license to operate under or a remendation to infringe any patent rights. CAUTION: Do not use this product in medical applications involving permanent implantation in the human body. For other medical applications see DuPont Medical Caution Statement, H51459. 174。 Registered trademark of DuPont 174。 DuPont Registered Trademark Efficient venting for mobile phone parts moulded using Zytel174。 these data may not be valid for such material used in bination with any other materials or additives or in any process, unless expressly indicated otherwise. The data provided should not be used to establish specification limits nor used alone as the basis of design。 these data may not be valid for such material used in bination with any other materials or additives or in any process, unless expressly indicated otherwise. The data provided should not be used to establish specification limits nor used alone as the basis of design。 to retain strength Diameter equal to 80% of pin diameter Efficient Venting Page 19 Ejector pin venting: Then add relief channels along the length of the pin back into the clearance hole, or back into the ejector box if there is no clearance in the hole Efficient Venting Page 20 Ejector pin venting: Typical relief channels along the length of the ejector pin or sleeve ejector until clearance is reached Relief channels must be symmetrical to stop the pin bending. Depth depends on pin diameter, but 1mm minimum preferred Efficient Venting Page 21 Vented ejector pins Efficient Venting Page 22 Fixed inserts: ? Fixed inserts should be vented using the same principles as for ejector pins ? They need a good exit to atmosphere, otherwise their effectiveness will be reduced because they do not move each shot like ejector pins
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