Article Archive

Close-Up on Technology

News in Molding Simulation at K 2013 Show
At October's K 2013, suppliers of injection molding simulation software displayed solutions addressing a number of hot topics, as well as technology to speed up handling of larger models and multiple iterations.

Features

The Truth About Reshoring
Reshoring is not just a buzzword, it’s an economically driven correction to a supply chain that had become unbalanced.

Switch Over To Consistent Quality
A new process-control method picks up variations in melt quality and viscosity during the injection phase and equalizes them within the same shot.

The ‘Total Package’ in Thermoforming
Here's how a leading edge custom former evolved from a CAD/CAM business.

Additive Manufacturing: Materials for ‘Real-World’ Parts
Developments in materials have helped pave the way for processors to make ‘real world’ parts from what is collectively known as 3D printing. Here’s a comprehensive review of the materials available.

Strategies

Five-Layer Line Gives Processor More Flexibility, New Opportunities
Processor bumps it up from three-layers to boost quality, flexibility and enter new markets.

Troubleshooter

Use Your Gauge to Solve Processing Issues Upstream
Gauging systems have an often-overlooked but equally important role beyond measuring web thickness: They can be used as a diagnostic tool to troubleshoot the process. Here's how.

Keeping Up With Technology

EXTRUSION: Downstream Line for Medical Tubing
Kuhne adds pulling, cutting and conveying units.

RECYCLING: Heavy-Duty Pipe Shredders
Ideal for thick-wall pipe.

RECYCLING: Screw-Fed Granulator
Patented units are said to be quiet, more efficient.

TESTING: Datacolor Launches New Family of Handheld Spectrophotometers
Top notch repeatability and inter-instrument agreement is claimed for Datacolor's new handheld spectrophotometers.

WELDING: Low-Force Ultrasonic Welder for the Smallest Mechanical Precision Parts
Low-force version of ultrasonic welder can achieve repeatable welds with low welding forces down to 5 N.

CONTROLS: Gefran Adds New Pressure Sensors for Extrusion & Injection
At the recent K 2013 show in Dusseldorf, Gefran brought out new pressure sensors for extrusion and announced the acquisition of a Swiss maker of pressure sensors for injection molding.

INJECTION MOLDING: Zahoransky Automation Cell for Non-Glued Syringes
At October’s K 2013 show in Dusseldorf, Zahoransky AG, the German maker of injection molds, packaging machines, and automation systems, demonstrated the Z.Zyklon system for producing disposable syringes with non-glued encapsulation of the metal needles.

REINFORCEMENTS:PP/Carbon Fiber Yarn Outperforms Carbon Fiber Alone
Integrated at the filament level with high-modulus fibers of carbon, glass, basalt or aramid is the new Innegra H line of PP yarns.

MATERIALS: PEEK Compounds Get More Wear Resistance Without Losing Other Properties
New PEEK compounds contain a proprietary additive that outperforms PTFE in wear and other properties.

ROTOMOLDING: Mold Changes in 3-4 Minutes
At October’s K 2013 show in Dusseldorf, Persico Rotomolding Div. of Italy discussed the latest developments in its Smart-Leonardo rotomolding machines.

DRYING: New Vacuum Dryer Exceeds Throughput Expectations
Extensive production-scale test runs with a redesigned vacuum dryer produced higher throughput than originally specified and achieved required dryness in just 35 min after a cold startup.

MATERIALS: Purging Compounds Aid Production of Caps & Closures
Food-grade purging compounds specially tailored for production of HDPE beverage caps and closures.

MATERIALS: Injection Molding COC with Internal Mold Release
The boost in processability has made this COC the go-to choice grade for components with high-aspect ratios, precision details, and other molding challenges.

Auxiliaries: Air Rinsing and Static Removal System
Uses 80% less energy than compressed air-cleaning technology.

MATERIALS: RTP Launches High-Performance Carbon-Fiber Compounds
  RTP Co., Winona, Minn., has introduced the Ultra Performance Structural Compounds series to its portfolio of high-temperature structural compounds.

Know How

Melt Flow Rate Testing–Part 8
Here are the steps to take in cases where the MFR is not provided by the polymer supplier.

Shutting Down & Starting Up An Injection Molding Machine
Whether your press is going down for repairs, a holiday, or a slow production schedule, proper shut-down and start-up procedures must be followed.

Extruding High-Temperature Resins
Older extrusion lines might not be suitable for processing materials up to 750 F. Here's what you need to know to get started.

Leverage Your Cooling Power
You can predict the amount of heat you'll need to remove from parts before ejection with reasonable accuracy if you know polymer thermal properties and certain other rules of thumb.

Starting Up

ROBOTS: Sepro America Moves to Larger Facility
Sepro America, LLC has moved to a new building in Warrendale, Pa., that's nearly double the size of its previous space.

INJECTION MOLDING: Open House at RJG’s New SE Training Center
On April 22, RJG Inc., Traverse City, Mich., will host an open house at its new Southeast Training Center in Woodstock, Ga.

Double-digit gains for North American plastics equipment
Shipment of plastics equipment in the third quarter of 2013 jumped 20%, according to SPI data, reflecting gains seen the world over.

APPLICATION: Polycarbonate Adds Style to Electric-Car Charging Stations
Two tough, flame-retardant PC grades lend style and ease-of-use to new electric-car charging stations.

APPLICATION: First Wine Bottle Closures Made with 'Green' PE
Braskem's 'Green' PE featured in Nomacorc's first 100% renewably-sourced wine closures.

TeknorApex Buys Viking Polymers, Expands Rigid PVC Compounding
Teknor Apex Co., Pawtucket, R.I., significantly broadened its rigid PVC compounding business through its recent acquisition of custom compounder Viking Polymers, Jamestown, N.C.

APPLICATION: Styrenic TPEs Outperform TPVs in Medical-Device Cable Assemblies
Minnesota Wire of St.

Milacron Expands Aftermarket Business—Again
Milacron LLC, Cincinnati, recently completed the purchase of Industrial Machine Sales, Inc. (IMSI) and its sister company, Precise Plastics Machinery (PPM), both of Southlake, Texas.

MATERIALS: APS Elastomers: New Name for Expanded TPE Supplier
Alliance Polymers & Services LLC and its manufacturing arm, APS Compounding, Romulus, Mich., have consolidated to form APS Elastomers.

MATERIALS: Nexus to Distribute Chinese PET
San Francisco-based Pacific Rim Traders (PRT), the sales and service arm in the Americas for China’s Dragon Special Resin Co.’s PET resins, has chosen the Nexus Resin Group, Mystic, Conn., as its exclusive distributor.

Milacron reestablishes West Coast presence with new tech center
Milacron has a new West Coast home in Irvine, Calif., formally opening its new High Impact Technical (HIT) Center, with more "HITs" planned for the future.

Resin Prices

Prices Up, Except for PP
Prices of PE, PS and PVC were on the way up last month, while PP prices could be headed in the other direction.

Column

Let’s Confer…About Conferences
Plastics Technology and sister pubs plan thermoplastic composite in automotive event. Meantime, Molding Conference purchased by PT parent.

Market Watch

Motor Vehicles & Parts Production to Slow in 2014
The numbers look good now, but moving forward there are reasons to be cautious about the auto industry.

Processor's Business Index

Industry Expands Again
January was the third month in a row and the fifth time in six months that index was higher than it was one year ago.

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