ANTIMICROBIAL ALLOYS
should always be blended or tapered gradually into the thinner one. Also, whenever possible, avoid L, T and X intersections. Radii inside and outside edges rather than designing a sharp L corner. When T sections cannot be avoided, adverse eff ects can be minimized by providing generous radii at corners and making the arms unequal in thickness. Ad- ditionally, “dimpling” (a small indent at the top of the T’s intersection) can help reduce the severity of hot spots. X intersections have particularly ad- verse eff ects in copper castings. T ey are almost always avoidable, though, by converting an X intersection into two off set T sections, for example. Figure 3 shows a cast copper con- nector used in electrical power gen- eration. T e component’s design— which included 15 heat-dissipating fi ns, four cast-in elongated slots, a cast hole to accept mating parts, and three cast mounting surfaces—re-
In 2008, the U.S. Environmental Protection Agency offi cially recognized the antimicrobial properties of hundreds of copper alloys, including 62 cast alloys. As a result, manufacturers and retailers are able to market cast and wrought copper products as benefi cial in applications where it is touched, including hospitals and mass transit. ”At least 10 manufacturers are now actively selling antimicrobial copper
products, including IV poles, railings, door hardware, carts and [other fre- quently touched items],” said Harold Michels, senior vice president, technol- ogy and technical services, Copper Development Association, New York. Testing shows that antimicrobial copper alloys kill more than 99% of
several bacteria within two hours of exposure, though these surfaces are considered to be a supplement to and not a substitute for sanitation protocols. Metalcasters that produce touch-surface components have an opportunity considering many of these products require intricate shapes that make casting a natural manufacturing method. According to EPA registration, certain copper alloys: • Continuously reduce bacterial contamination, achieving 99% re- duction within two hours of exposure.
• •
• Kill greater than 99.9% of bacteria within two hours of exposure.
Deliver continuous and ongoing antibacterial action, remaining effective in killing more than 99.9% of bacteria within two hours, even after repeated wear and recontamination.
Help inhibit the growth of bacteria within two hours of exposure before and after cleaning and sanitizing.
Visit
www.antimicrobialcopper.com for more information.
Castings
Precision Metal
Make sure you’re Getting all the pieces.
At JENCAST, we pride ourselves on being a world class, full-scale manufacturing services provider. We bring every piece of the puzzle when it comes to delivering the industry’s highest quality components. From initial product design, to our robust production capacities in both foundry and fabrication, we have you covered.
Combine that with our list of added-value services, such as surface coatings, in-house CNC machining, sub or complete product assembly, and testing
capabilities, we’re able to supply you with turnkey components or products of superior quality and insure zero-defect availability.
P.O. Box 1509 / Coffeyville, KS 67337
www.jencast.com
Contact JENCAST today at 800-331-3551 or visit us online at
www.jencast.com.
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