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California Issues Mandatory PFAS Testing Requirements for Chrome Plating Facilities

Per- and poly-fluoroalkyl substances (PFAS) are receiving increasing attention from regulators and the media. The increase in regulatory attention to PFAS has led to rapidly evolving environmental requirements that are impacting the metal finishing industry. PFAS consist of thousands of man-made chemicals that have many manufacturing and industrial applications, such as aerospace, automotive, chemical, electronics, metal coatings and plating, and textile industries, due to their friction-reducing, stain-repellent and fire-retardant characteristics.

Health studies have linked small doses of PFAS in the order of parts per trillion, including perfluorooctanesulfonate (PFOS), to adverse health effects in people, including cancer. PFOS, in particular, has been widely used within the chrome plating industry as a chemical fume suppressant since the 1950s and many states have required manufacturers to reduce the harmful hexavalent chrome air emissions associated with the electroplating process. In 2006, the California Air Resource Board (CARB) mandated the use of PFOS-containing fume suppressants at chrome plating facilities. An industry-EPA collaboration between 2012 and 2015 led to the phaseout and banning of PFOS-containing fume suppressants and the phase in of 6:2 Fluorotelomer sulfonate (6:2 FTS)-based fume suppressant formulations. 6:2 FTS is also a PFAS chemical and has had few health studies performed to determine the exact effect on organisms and the environment, but overall is believed to be safer.

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Technical Cleanliness Expert Days Brings Together Cleaning Community for Learning and Networking

The expectation of shipping clean machined parts to customers or cleaning parts prior to a coating process is a reality for many companies. But it’s not easy to find information on best cleaning practices. Two companies that offer cleaning technologies to the industry—Glaeser Inc. and Jomesa North America—have recognized this issue, and therefore partnered for the second consecutive year to host a conference focused on education in the field. On Oct. 29-30, in Aurora, Ohio, 33 attendees, including specialists and executives who manage quality requirements of technical cleanliness within their companies, gathered at the Bertram Inn & Conference Center for the second Technical Cleanliness Expert Days event. This year the event expanded to one-and-a-half days, with the theme of “Cleanliness in Production and Critical Processes.” The event was again sponsored by Production Machining and Products Finishing magazines.

With 15 speakers presenting (six of whom came all the way from Germany), many areas of expertise were covered throughout the conference. Attendees had plenty of opportunities to ask questions and network with other attendees and speakers, including at lunch, a cocktail reception and dinner, all included with the conference cost. Several presenters also set up tabletops outside of the auditorium to offer further information about the cleaning processes supported in their presentations.

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December Issue: Lustrous Metal Coatings and Boeing Troubleshoots Chromium Conversion Coatings

 

Our cover story is about Mike Paxos, owner of Lustrous Metal Coatings in Canton, Ohio, who has a taste for well-run operations that complement whatever his company is working on at the time. His shop is a 5-time Products Finishing Top Shop Benchmarking Survey award winner. Read the article here.

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Hybrid Coatings on Centrifugal Fans in Steel Plants

Centrifugal fans in the steel industry are often exposed to rough and challenging conditions, such as vibrations, high temperatures and abrasive particles. While vibrations can mostly be avoided by balancing measures and temperature resistance achieved by the right choice of material and dimensioning of cooling discs, a resistance against abrasive particles is still a challenge for many centrifugal fans. The dust load in the air (as well as the size, speed or hardness of the particles) determines the running time of a centrifugal fan in a steel plant. That was the main incentive for TLT Turbo to invest great efforts to considerably increase the running time of centrifugal fans in dust-loaded conditions.

Since about 1970, TLT-Turbo has performed particle jet wear experiments on various fan materials and coatings. For that, TLT-Turbo used a particle jet test stand, where a standardized test sand (with standardized grain size distribution) was blasted under a defined pressure/speed as well as special defined angles for surfaces of different fan materials and coatings. By exactly measuring the material loss after a defined amount of sand/blasting time, TLT-Turbo determined erosion rates that correspond with the wear resistance of the investigated materials and coating.

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