Plastics Technology - Dedicated to improving Plastics Processing.
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VOLUME 6 3 • NUMBER 06 44 How to Solve Common Ultrasonic Welding Problems Understand and address the likely origins of welding problems to keep production on track. By David Dahlstrand, Branson Ultrasonics Cover Story Material Developments Abound in Automotive Lightweighting and resistance to heat, chemicals, and weathering drive developments in thermo- plastics for interiors, exteriors, underhood, powertrain and chassis. By Lilli Manolis Sherman, Senior Editor 56 52 How to Mount an Injection Mold Five industry pros with more than 200 years of combined molding experience provide step-by-step best practices on mounting a mold in an injection press. By Piotr Witaszek, John Klees, Jim Fattori, Ernie Di Siro, and John Bozzelli 6 FROM THE EDITOR 8 STARTING UP CLOSE-UP 14 Polyolefins 20 Automotive 26 Foam Molding KNOW HOW 30 Materials 34 Injection Molding 40 Extrusion KEEPING UP WITH TECHNOLOGY 62 Injection Molding 62 Compounding 64 Extrusion 67 Tooling 67 Heating/Cooling 68 Drying 69 Materials YOUR BUSINESS 71 Resin Pricing Analysis 73 Plastics Business Index 74 Market Watch 75 Marketplace 80 Processor's Edge Medical-Tubing Innovator Bets on Silicone Solutions Trelleborg gains footprint in silicone-based implantable medical extrusions. By Jim Callari, Editorial Director 48 On-Site Tips and Techniques Troubleshooting PTonline.com 1 Plastics Technology