PT Blog

Predictive maintenance monitoring goes beyond the basic gauges found on vacuum conveying pumps. It can identify key problems before they turn critical, preventing equipment failure and minimizing regularly scheduled maintenance.

Vacuum conveying pumps are typically furnished with only a local vacuum gauge. With these pumps, data controls track vacuum levels and motor faults with sensors and then set off an alarm when something is wrong. That’s what is referred to as “condition monitoring.”

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At NPE2018 in Orlando, Fla., Distributor RDAbbott, Cerritos, Calif., showed off a system for 3D printing with LSR, developed by Dow Silicones (previously Dow Corning), Midland, Mich., and German RepRap, a maker of 3D printing equipment.

Called Liquid Additive Manufacturing (LAM), the system injects liquid A and B components from two pressurized tubes into a pump that maintains a 1:1 ratio. The pump feeds a head under x-y motion control, which and lays down a continuous bead, similar to FDM or FFF-style 3D printers. The system deposits layers as thin as 0.2 to 0. 35 mm thick, which are fully cured by a heat lamp, a whole layer at a time. The system uses Dow’s Evolv3D LC 3335 LSR material, which produces a 44 Shore A hardness without post-cure and 46A with post-cure. The LAM 3D printer reportedly produces parts with 100% of the tear strength of injection molded samples, 90% of their tensile strength and hardness, and 85% of their elongation. Applications in development include honeycomb custom orthotic shoe soles.

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Sponsored Content 5. June 2018

Mass Polymerization Produces Purer ABS Resins

ABS (acrylonitrile butadiene styrene) is a thermoplastic resin used in injection molding applications and is a popular solution in a wide variety of applications such as toys, device enclosures and automotive parts.

What many plastics processors may not know, however, is that all ABS—quite literally—is not made the same. ABS made with a process called mass polymerization results in a higher grade of engineering resin by using less residual monomers, gels and VOCs. That difference can result in substantial advantages in injection molded, extruded or thermoformed component properties in addition to a lower cost to manufacture those parts…READ MORE.

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At the PEPP 2018: Polyethylene and Polypropylene Chain Global Technology and Business Forum, the 26th year of this event, organized by Houston-based IHS Markit, the focus is on sustainability being key to the future of the plastics industry.

This year’s June-26-28 event in Düsseldorf, Germany, will feature a host of chemical and plastics industry leaders representing the plastics value chain—from resin suppliers, to processors and brand owners, as well as others involved in recycling and reuse, who will address the issue of sustainability, as the industry moves toward a circular economy mindset.

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Windmoeller & Hoelscher Corp. (W&H) and Keep Blackstone Valley Beautiful, an affiliate of Keep American Beautiful, teamed up for a community litter pick-up in Lincoln, Rhode Island. In under two hours, the group of 10 collected more than 20 bags of garbage, including cans, bottles and wrappers, along with several tires and vinyl siding.

“It feels good, as a citizen, to be out there contributing to the community in a positive way, but picking up someone else’s garbage certainly adds a dose of frustration to the mix,” said Catherine Mattson, marketing communications manager at W&H.

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