Postconsumer

sustainability

Plastics Welding: Laser and Infrared Systems Expand Capabilities

A breakthrough in laser welding of three-dimensional parts that eliminates traditional clamping systems was among several innovations in welding and joining highlighted at two recent shows—last month’s Plastics USA in Chicago and this month’s K 2004 in Dusseldorf, Germany.

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Multiscrew

From Paper-Mill Sludge to Plastic Decking

Kadant Composites’ self-appointed mission for the past eight years has been to find commercial uses for paper sludge, a soggy mix of short cellulose fibers, calcium carbonate, and clay that is the copious byproduct of paper recycling.

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nanocomposites

How to Turn Auto Shredder Waste Into 60 Million Lb of Plastic Pellets

While much of the world is studying the possibility of getting any economic value out of auto shredder residue—for example, as fuel for cement kilns or power plants—Europe’s second largest scrap-metal reclaimer cranks out polyolefin and polystyrene pellets made from shredder residue at 20,000 to 100,000 lb/hr, or about 40 million lb/yr.Galloo Plastics, the recycling unit of the Galloo Group in Halluin, France, has been so successful at supplying automotive markets with its black PP compounds that it built a second auto shredder residue (ASR) recycling plant this year next to the first, inside its huge scrap yard.

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Postprocessing

Lasers Now Clean Molds and Parts

They drill, cut, weld, polish, engrave, and print.

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Postconsumer

Recycled PET/PE Alloys Show Promise In Monofilament, Pallets, Pipe

Alloys of polyethylene and recycled PET were the highlight of the annual SPE Global Plastics Environmental Conference (GPEC) in Detroit in February.

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Postprocessing

New Approach to IR Welding Bonds More Engineering Plastics

Kubota Research Associates (KRA), a U.S.-based research and development firm, has introduced an advanced method for through-transmission infrared (TTIR) welding of sensitive plastic parts.

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Postprocessing

How to Use Those Fancy Ultrasonic Welding Controls

You know how to set a timer, but newer ultrasonic welders also offer control by energy, collapse distance, and absolute distance. Do you know when and how to exploit these options to make better welds?

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sustainability

'Collar Joining' Method Makes Plastic-Metal Hybrids

 A mechanical method for joining plastic and metal to create hybrid automotive front-end assemblies has been developed by BASF AG in Germany.

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Postconsumer

Get to Know Lasers And Their Roles in Plastics

Plastics processing is one of the fastest growing application areas for laser technology.

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Process Cooling