Automatic Gauge Control: Comparing the Options
Until recently, blown-film processors looking for auto-gauge control had a choice of one segmented-die system, one IBC-based system, and several segmented air rings. Now there are at least nine auto-dies, including two for high-stalk bubbles, and lots of air-ring variations. All claim to improve gauge uniformity, but there are differences.
How to Injection Mold Cyclic Olefin Copolymers
This new family of clear engineering thermoplastics made its first big splash in extrusion, but now injection molders are learning how to process these amorphous resins into optical and medical parts.
Oblivious to the Risk
“I called it ‘Chronicle of a Failure Foretold,’” says Prof.
Your Business in Brief - November 2002
Basell to Sell ConocoPhillips PPConocoPhillips of Houston has appointed Basell North America of Wilmington, Del., to be the exclusive purchaser and marketer of polypropylene resins produced at the new ConocoPhillips Bayway plant in Linden, N.J.
Your Business Outlook - November 2002
Based on interviews with molders, Mastio & Company forecasts an average annual growth rate of around 5% for injection molded plastics in appliances through 2006.
Thermoforming Shines in Exterior Vehicle Panels
Thermoformers are gaining a foothold in large exterior panels of specialized automobiles and utility vehicles.
PVDF Latex Foam CompositesProvide High Flame Resistance
A new patent-pending technology developed by AtoFina Chemicals in Philadelphia creates highly flame-resistant foams of polyvinylidene fluoride (PVDF) fluoropolymer without the use of blowing agents or melt processing.
Arburg Moves into Mid-Sized Presses And Electric/Hydraulic Hybrids
A move to larger machine sizes and the introduction of an electric/ hydraulic hybrid series were announced recently by injection machine builder Arburg, Inc.
New Pressure Transducer For Food & Medical Extrusion
Processors of extruded products for food or medical applications have a new option in pressure transducers that gives improved performance at competitive cost.
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.
IR Thermal Imaging Diagnoses Part Defects
Ability to monitor and modify the surface temperature of a heated sheet is critical to making high-quality thermoformed parts.