Beth Stackpole
User Rank
Double duty to the rescue
Beth Stackpole   10/31/2011 8:01:57 AM
Seems like a really promising technology and one that could have significant ramifications for manufacturers given the widespread use of injection molding in production. Is this a technology experiment or is DuPont further along in terms of trials or early use case testing, or perhaps even gearing up to commercialize the technology?

Ann R. Thryft
User Rank
Re: Double duty to the rescue
Ann R. Thryft   11/18/2011 1:28:17 PM
To answer your question, Beth, it appears that the technology has not yet been fully commercialized, since DuPont says it is still refining and testing the two methods.

User Rank
The Price to Upgrade
williamlweaver   10/31/2011 9:53:03 AM
Like most innovations, the total cost of adoption is based on the predicted savings and the cost to upgrade. 30% time savings is really attractive in a high-volume process, but that will be balanced by the cost to modify or replace the existing tools. I'm going to guess that DuPont has done their homework and charted a path that includes the cost of tool upgrades. Otherwise this innovation will take a large time to permeate production floors as they replace older equipment or build new lines.

RR Engineer
User Rank
Re: The Price to Upgrade
RR Engineer   11/1/2011 11:06:03 AM
The method is limited to THICK parts with a means to complete PACK in the Mold.

I have adding mold melt "PACK" volumteric make up and reduce "shrink" by:

1. Core Pin as a Plunger in the sprue puller - problem with gate size for balanced "INPUT"

2. Collapsible Cavity to build accept added melt volume and post PACK compression  

3. Side Pocket with a gate into a plunger area made up on the parting line.

4. Looking at a 40 second cycle is long. We are in 24 - 36 - 48 - 64 - 96 - 128 cavity clossure tops and bottoms with 15 - 25 second cycles.

User Rank
Question on dosing
Tim   10/31/2011 9:35:31 PM
I am a little confused on how this technology is used especially in regards to the moving side mold cylinder.  Where does the dosed melt cushion come from on the moving side of the mold.  I can sort of understand adding material through the hot runner, but this is still hard to grasp.  In most injection molding applications, all of the fill, pack, and hold pressures are applied by the injection screw.  The length of time for pack and hold are determined by the gate freeze off time.  Some better description of what this technology does would help in applying it.

User Rank
postcards printing
ljsdofi43092   5/31/2014 12:43:02 AM
A postcard or post card is a rectangular piece of thick paper or thin cardboard intended for writing and mailing without an envelope. There are novelty exceptions, such as wood postcards, made of thin wood, and copper postcards sold in the Copper Country of the U.S. state of Michigan, and coconut "postcards" from tropical islands.

In some places, it is possible to send them for a lower fee than for a letter. Stamp collectors distinguish between postcards (which require a stamp) and postal cards (which have the postage pre-printed on them). While a postcard is usually printed by a private company, individual or organization, a postal card is issued by the relevant postal authority.

Toronto postcards printing | Calgary postcards printing | Winnipeg postcards printing | Montreal postcards printing | Regina postcards printing | Saskatoon postcards printing | Ottawa postcards printing | Edmonton postcards printing | Vancouver postcards printing |

Atlanta postcards printing | Boston postcards printing | Chicago postcards printing | Arizona postcards printing | Miami postcards printing | New York postcards printing

Partner Zone
Latest Analysis
Most of the new 3D printers and 3D printing technologies in this crop are breaking some boundaries, whether it's build volume-per-dollar ratios, multimaterials printing techniques, or new materials types.
Check out these gifts that will make you the hero of your Secret Santa party.
Voting has closed on our 2015 Gadget Freak of the Year contest, but it is not game over yet for two competing projects.
Independent science safety company Underwriters Laboratories is providing new guidance for manufacturers about how to follow the latest IEC standards for implementing safety features in programmable logic controllers.
Automakers are adding greater digital capabilities to their design and engineering activities to promote collaboration among staff and suppliers, input consumer feedback, shorten product development cycles, and meet evolving end-use needs.
Design News Webinar Series
11/10/2015 11:00 a.m. California / 2:00 p.m. New York
10/29/2015 11:00 a.m. California / 2:00 p.m. New York
10/20/2015 8:00 a.m. California / 11:00 a.m. New York
12/2/2015 11:00 a.m. California / 2:00 p.m. New York
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Jul 6 - 10, Building Raspberry Pi Controllers with Python
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6 |  7

Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2015 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service