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Proper Tension Prevents Flexible Packaging Print Problems (.pdf)
The key to reliable defect prevention is the converter's ability to measure and make machine adjustments to eliminate unwelcome deviations including tension transients. While many film printers and converters are trying to overcome excess tension in their webs, some suffer from slack web conditions...
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What is an Electrical Transient?
p>An electrical transient is a temporary excess of voltage and/or current in an electrical circuit which has been disturbed. Transients are short duration events, typically lasting from a few thousandths of a second (milliseconds) to billionths of a second (nanoseconds), and they are found on all...
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Metallocene Based Hot Melt Adhesives for Case and Carton Sealing Applications (.pdf)
In 2007, the packaging industry will use in excess of 400 MM pounds of ethylene vinyl acetate (EVA), which roughly corresponds to more than one billion pounds of hot melt adhesive (HMA).1 EVA-based HMAs have been the workhorse of packaging adhesives for the past 40 years. Despite their shortcomings...
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Better bundles with leadscrews
caused an excess of play and uneven motion. The typical result was lengthy setup time and continual maintenance for alignment and timing. Additionally, it was difficult to accommodate new package designs, sizes, materials, and configurations with the pneumatic pusher. Frequent changeovers...
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Automated foundry fights foreign competition
downtime. An operator directs the mixer head via joystick to fill pattern boxes with sand. These get compacted on a vibrating table. Compaction time and vibration frequency are set for each pattern according to mold qualities, and a robotic strickling tool removes excess material. Molds then move...
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UV Sensor Developed for Control of Adhesive Dispensing
to detect glue and adhesives in assembly and manufacturing processes, such as in packaging machinery and in the manufacture of adhesive tape. As feedback to a control system, the sensor can precisely measure the amount of applied glue, or it can be used to check for gaps in glue dispensing, excess glue...
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Synthetic Lubes Protect Electrical Connections, Reduce Warranty Claims (.pdf)
that survive. cal wear, provides an oxygen barrier and helps. temperatures in excess of 200°C while limiting. keep oxide debris away from the contact area. insertion forces, especially for multipin con-. This condition never improves: it only wors-. nectors, reducing the potential for repetitive...
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Running EDM Economically
that reduces power consumption by 20 percent compared to the FP60EA power supply it replaced. The regenerative power supply "saves excess energy from one spark and adds it up until enough energy is stored to make another spark.". The FP80V reduces power consumption by 50 percent when machining carbide...
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Taking the Heat Out of Hot Spots at QinetiQ
. Until now, manufacturers have had to take a very conservative approach to the design of such components and adopt a precautionary route to checking and replacing blades more frequently than may be necessary. This means taking the gas turbine out of service at a cost in excess of £250,000 per day...
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Have ball screws become a commodity?
. As speeds rise, tubes often jam with balls, causing ball skidding and excess wear. Stiff competition among ball-screw makers has some. Have ball screws become a commodity? | Machine Design. Skip to Content. Home. Subscribe. Advertise. Contact. RSS. E-mail: * Password: *. Create new account...