Pipe, Profile & Tubing Extrusion
Tooling: The Science of Profile Die Balancing
In our last column, we discussed the five things profile extruders need to know about profile die design—proper land length, land-length ratio, drawdown, considerations for sensitive materials, and decompression.
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Extrusion at NPE 2003
NPE is typically a competitive display of the biggest, most dramatic equipment machine builders can muster.
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Entrepreneur Puts Mixed-Polymer Recycling On Track to Success
Polywood Inc. in Edison, N.J., uses mixed recycled plastics to make fiber-reinforced structural profiles for railroad ties, I-beams, and decks.
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How United Plastics Became A Quick-Change Artist
United Plastics Corp., a small profile and sheet extruder with 125 employees in Mount Airy, N.C., combines an almost unbelievably diverse product mix (it has some 5000 dies in active use) with the ability to change over individual extrusion lines four or five times a day.
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They Hit the Market Running
Three years ago, when Martin Grohman and Michael Hurkes started Correct Building Products in Biddeford, Me., it wasn’t so much a start-up as a rocket launch.
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Profile Maker Runs Lean & Fast
In the early 1990s, as competition heated up in European PVC window markets, many European processors looked to U.S. markets for growth.
Read MoreTooling Know-How: Five Tips on Profile Die Design
A poorly designed profile die—one that does not permit the part to be extruded with the same dimensions from run to run—coupled with a lack of understanding of the extrusion process, is a recipe for scrap generation.
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NPE 2009 Wrap-Up: New Machinery for Extrusion and Compounding
Extrusion machinery at the June NPE show in Chicago showed inventive ways to get more out of your floorspace and materials.
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NPE News in Extrusion
This NPE show won’t have a lot of extruders on the floor, either running or static. Instead, look for videos and announcements of new technology. You will also find lots of ingenious peripheral devices to improve output and quality and save resin. Some will do all three, and cost less into the bargain.
Read MoreANTEC at NPE: Editors' Picks
One of the unusual features of NPE 2009 in Chicago June 22-24 will be the first-ever concurrent presentation of the SPE ANTEC conference, by far the largest of seven conferences at McCormick Place during the show.
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