Testing
How to Buy Universal Testing Machines
More processors today are buyingso-called ‘universal’ testers to measure tensile, flexural, compressive, and shear properties for materials evaluation, application development, and quality control. Advanced electronics have improved these instruments’ performance and ease of use—and even led to lower prices.
Read MoreFrom NPE 2000: The Latest Instruments For Testing & QC
The huge triennial plastics exhibition in June showcased new developments in product inspection and lab instruments for testing mechanical properties, melt rheology, weatherability, color, and appearance.If you are looking to outfit a new lab or upgrade an existing one, the NPE 2000 show in Chicago this past June spotlighted many new instruments for use in product development, material evaluation, and quality control.
Read MoreNPE Newsfinder: Blow Molding
Examples of the growing trend toward all-electric blow molding machines for packaging will either be physically present or shown in videos and brochures at NPE.
Read MoreWeather Testing: Why You Need It More Than Ever
If you think your product doesn't warrant weather testing, you could be in for a rude surprise. Any time you change a material formulation or use it in a new application you run the risk of uv-induced failure.
Read MoreNPE News Wrap-Up: Testing & Measuring Instruments
There was no shortage of new developments in product inspection devices and instruments for testing color and appearance as well as mechanical, rheological, thermal, and weathering properties.
Read MoreTesting & QC at NPE 2003
Plastics molders, extruders, and compounders will have a lot to see in testing and measurement equipment.
Read MoreOn-Line PET Bottle Thickness Gauging Brings Responsive Process Control
Maintaining desired wall thickness in the neck, shoulder, wall, and base of a PET bottle is a continuing challenge to blow molders, says Chris Robinson, head of quality assurance at the Bowling Green, Ohio, plant of Southeastern Container (SEC) Group Inc.
Read MoreIMPACT: Which Test to Use? Which Instrument to Buy?
Impact testing is a complex and controversial subject, and one that is in the midst of change. These factors add challenge to selection of the most appropriate impact instrument for a processor's lab.
Read MoreThe Latest Instruments For Testing & QC
The huge triennial plastics exhibition in June showcased new developments in product inspection and lab instruments for testing mechanical properties, melt rheology, weatherability, color, and appearance.
Read MoreCapacitance Gauges Come of Age For Blown-Film Thickness Control
Thanks to recent technical advances, relatively inexpensive capacitance thickness gauges reportedly are now stable enough for reliable closed-loop control, not just monitoring thickness variations. Another big step forward for capacitance gauges is the arrival of non-contact heads that can be mounted on the bubble instead of farther downstream on the layflat, thereby allowing quicker response to thickness variations.
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