Article Archive

February 2013




Past Issues

Close-Up on Technology

Studies Boost Prospects For High-Speed Extrusion
Study shows that high-speed, single-screw extruder can significantly boost the processing capability of a small-diameter machine for a wide range of applications

Moldmaker Explores New LSR Molding Technologies
Can liquid silicone rubber (LSR ) be overmolded onto polypropylene?

Features

A Processor’s Advice on How to Get Moisture Testing Right
Follow these four steps to ensure your results are on target.

Designing a Thermoforming Plant For Efficiency and Productivity
Building a new plant in 2003 gave Lyle Schut a clean slate.

Molders Go ‘Rapid’ for Prototyping and Manufacturing
Three forward-thinking custom molders have taken steps to streamline their manufacturing, expand new product development, and add to their customer base—and all in a more cost-effective manner than ever before.

Strategies

New Drying Technology Helps Moldmaker Get Back to Molding
System solves quality problem that had hamstrung previous molder.

Troubleshooter

Troubleshooting Mold Temperature Control
Mold-temperature control is just one of many process elements that can affect the quality of an injection molded part.

Keeping Up With Technology

INJECTION MOLDING: Low-Cost, High-Performance Hot-Runner Controllers
Plastic Engineering & Technical Services, Inc. (P.E.T.S.), Auburn Hills, Mich., has introduced the PHRS family of hot-runner temperature controllers, said to “provide outstanding performance at price levels far below any competitive offerings.”

EXTRUSION: Device Captures Airborne Particles From Blown Film Extrusion
Future Design Inc., Mississauga, Ont., has been awarded a patent on its Saturn Evacuation System (SES), which reduces airborne contamination that fills the plant during the blown film process.

AUXILIARIES: CMM & Vision Systems Packaged with Free ‘Extras’
Mitutoyo America Corp., Aurora, Ill., announces a new program that allows users to “package” certain coordinate measuring machines (CMMs) and vision systems with related equipment and service packages at no extra cost over the base price of the machine, representing an overall savings of more than $15,000.

AUXILIARIES: 3D Printer for Industrial-Scale Prototypes
A large-format, inkjet-type 3D printer for large industrial prototypes has been launched by Stratasys Ltd., Eden Prairie, Minn.

MATERIALS: New PBT & Degradable Polyesters
WEB EXCLUSIVE: Three new series of polyesters are newly offered by compounder and distributor KMI Group, Newport Beach, Calif., through an exclusive distribution agreement with an unnamed supplier.

MATERIALS: High-Performance TPVs from New Source
WEB EXCLUSIVE: Alliance Polymers and Services LLC, Romulus, Mich., has launched a second series of its own TPVs, weeks after it introduced its first series of Viprene G general-purpose TPVs.

MATERIALS: Aromatic TPU for Long-Term Medical Implantation
WEB EXCLUSIVE: A new line of eight aromatic products have expanded the Carbothane line of polycarbonate-based thermoplastic polyurethane (TPUs) from Lubrizol LifeScience Polymers, Cleveland, which encompass a range of grades and radiopacities.

Know How

Dimensional Stability After Molding—Part 2
After molding, acetal parts can continue to shrink at room temperature and even in the cold.

Don’t Ignore Nozzle Temperature Control
It is not a trivial detail.

The Evolving Barrier Screw
There has been a gradual transition from the earlier Maillefer designs used in Europe to the Dray/Lawrence design using the parallel barrier design with an increased helix angle to accommodate wider channels.

Starting Up

SIPA Partners with Athena Automation on PET Preform Molding Systems
Athena Automation, a company founded by Robert Schad (founder and former majority owner of Husky Injection Molding Systems), has formed a partnership with SIPA of Italy to supply injection molding systems for PET preforms.

New U.S. Source for Borealis Medical Resins
Nexeo Solutions (formerly Ashland Distribution), Dublin, Ohio, is now distributing Bormed medical-grade PP and PE resins from Borealis of Austria for healthcare applications in North America.

Two-Shot PC Glazing/Spoiler Combo in New Fiat Car
The new Fiat MPV (multi-purpose vehicle), already launched in Europe and set to debut here early in 2013, has what are said to be the first fixed rear side windows in the U.S. to use two-shot injection-compression molding, which allows for the seamless integration of an aerodynamic spoiler.

Lots of News in Engineered Compounding
Three companies, two of them domestic masterbatch suppliers, and one a German compounder, recently made new moves in engineered compounds for the U.S. market.•Americhem expands: Color and additive concentrate producer Americhem Inc., Cuyahoga Falls, Ohio, has acquired Infinity Compounding, LLC of Swedesboro, N.J.

Nano-Layer Shrink Film: Strong But Thin
Ultra-thin stretch-oriented blown shrink film now can be processed using the Layer Sequence Repeater (LSR) technology developed by BBS Corp., Spartanburg, S.C.

That’s One Complex Molding Job!
Under the hood of the 2012 Nissan Altima is a water outlet assembly that looks like an injection molder’s nightmare.

PC/Silicone Copolymer Toughens Self-Contained Breathing Apparatus
Biomarine, Exton, Pa., a manufacturer of self-contained breathing apparatus for rescue and hazmat workers, firefighters, and miners has improved the safety and durability of its new BioPal 240R Revolution rebreather by replacing the existing PC compound for the external housing.

PPSU in Novel Stethoscope for Noisy Environments
The front face of what is said to be first stethoscope that can detect heart/lung activity in high ambient noise (above 90 dbA), including combat casualty and civilian emergency medical environments, features Radel PPSU (polyphenylsulfone) from Solvay Specialty Polymers, Alpharetta, Ga.

PEEK Mesh for Filtration in Harsh Environments
WEB EXCLUSIVE: Dexmet Corp., Wallingford, Conn., a manufacturer of precision expanded metals, foils, and polymers has added Aptiv film to its PolyGrid portfolio, which is made of Victrex PEEK from Victrex USA, West Conshohocken, Pa.

Resin Prices

Commodity Resin Prices Shoot Up
Unplanned disruptions in polymer feedstock production in December, to be followed by a number of planned cracker outages slated for the first four months of this year, helped drive up monomer and resin prices, especially of PP, but also including PE, PS, and PVC.

Nylon 6 Price Hikes Under Way
WEB EXCLUSIVE: Citing unprecedented and continuing increases in the cost of raw materials, some nylon 6 suppliers have been aiming to lift prices since late last year.

Column

Coming Soon: The Plastics Processing Business Index
Analysis will pinpoint trends in plastics processing.

More Complexity Adds Costs And Opportunities in Medical
The rapidly rising cost of healthcare will generate demand for products that lower these costs to consumers. There are several ways that plastics can achieve these kinds of savings.

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