Home    About Us    News    Technical Reference     F.A.Q    Contact


Design
Injection Mold
Injection Molding
Die Casting Mold
Rapid Prototyping
Quality Assurance
Showroom
   
   
Quote Form
Link
Site Map


Google

WWW
www.longmold.com





¡ôTechnical Reference ---- ¡ñMold Design

Mold Design-Sprue Bushings
Date:22.Mar.2005

--------------------------------------------------------------------------------------------------------------------------------------------------------------------------

 

Sprue bushings connect the nozzle of the injection molding machine to the runner system of the mold. Ideally, the sprue should be as short as possible to minimize material usage and cycle time. To ensure clean separation of the sprue and the bushing, the bushing should have a smooth, tapered internal finish that has been polished in the direction of draw (draw polished.) Also, the use of a positive sprue puller is recommended. The Three Common Sprue Pullers illustration shows three common sprue puller designs.

Mold Design Sprue Bushings
Three Common Sprue Pullers


Tel: (86)-755-61287300     Fax: (86)-755-61637770
Website:http://www.longmold.com or http://www.mould.us
¡¡E-mail:info@longmold.com or sales@longmold.com
Copyright© 2005 Longmold Technology Co.,Ltd. All Rights Reserved