Hydraulic hoses can't tell you that they are about to fail, but new ColorGard hose can show you. The thermoplastic hose uses a multi-layered elastomeric or polymeric material in contrasting colors. The colors usually include a black outer cover with a red inner layer, but other contrasting colors can be used if desired. As the black layer wears away over time and the hose approaches an unsafe operating condition, the red inner layer is revealed, giving the hose inspector an early warning that it is time to further inspect the hose and consider pulling it from service. "ColorGard will highlight a problem before it's a problem," says Steve Powell, the engineering manager at Parker-Hannifin's Parflex Div. He says the new hose has the same abrasion resistance as other thermoplastic hoses, but is safer thanks to the contrasting colors. The hose's applications include construction and mobile equipment, where hoses are typically dragged across concrete and other abrasive surfaces. ColorGard is also suitable for hydraulic rescue equipment (e.g., Jaws of Life) where inadvertent hose failures are unacceptable. In indoor industrial applications, the hose helps end-users avoid catastrophes, injuries, clean-up expenses, and lost productivity.
Although hose assemblies in fixed-position hydraulic systems are not as prone to abrasion as assemblies that regularly move in mobile and construction equipment, abrasion still occurs in fixed systems through vibration and other means. ColorGard's applications also include use in fixed-position hydraulic systems where it allows for easy identification of hoses requiring replacement. Parker-Hannifin, Hydraulic Business Unit, Parflex Div., 1300 N. Freedom St., Ravenna, OH 44266; Tel: (330) 296-2871; FAX: (330) 296-8433; www.parker.com
One way to keep a Formula One racing team moving at breakneck speed in the pit and at the test facility is to bring CAD drawings of the racing vehicleís parts down to the test facility and even out to the track.
Most of us would just as soon step on a cockroach rather than study it, but thatís just what researchers at UC Berkeley did in the pursuit of building small, nimble robots suitable for disaster-recovery and search-and-rescue missions.
Design engineers need to prepare for a future in which their electronic products will use not just one or two, but possibly many user interfaces that involve touch, vision, gestures, and even eye movements.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies.
You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived.
So if you can't attend live, attend at your convenience.