The Dexmet Blog | Fuel Cells (3)

Interview with State of Connecticut at the 18th Group Exhibit Hydrogen + Fuel Cells

By: admin May 7th, 2012

Dexmet mentioned in interview with State of Connecticut at the 18th Group Exhibit, Hydrogen Fuel Cells exposition held at Hannover Messe, Germany, April 23rd through 27th, 2012

What effect does tarnish on copper have on product parameters?

By: admin March 22nd, 2012

This is one of the more common questions that we are asked. Customers are primarily concerned with adhesion and surface resistance. Does the surface resistance increase with increased tarnish levels? Will epoxy adhere to a tarnished copper surface? To try and provide an answer, we undertook some elementary evaluations of copper samples with varying levels of tarnish identified using the L*a*b* color space coordinates. For those unfamiliar with the L*a*b* system, the short answer is that every color can be defined in terms of 3 numbers. The first number, “L”, is for lightness which ranges from 0-100, with 0 being black and 100 being white. Everything else is shades of gray. The second number, “a”, is either positive (Red) or negative (green). The third number, “b”, is either positive (yellow) or negative (blue). That is it in a nutshell. All shades of copper and its tarnish can be defined in this way.

Subscribe Now

Get the latest engineering insights sent straight to your inbox.

2011 in review

By: admin January 3rd, 2012

The WordPress.com stats helper monkeys prepared a 2011 annual report for this blog.

Dexmet speeding up the development cycle for 2012

By: admin December 12th, 2011

Dexmet has brought the capability of Wire EDM (Electrical Discharge Machining) technology in-house to quicken the development process and provide better turnaround time to its customers. The new capability will allow Dexmet to quickly generate custom expanding dies for application specific expanded products or provide custom cut geometries out of already expanded materials.

DEXMET CORPORATION TO OFFER Victrex APTIV® PEEK™ FILM BASED EXPANDED MESH PRODUCTS FOR HIGH PERFORMANCE DEMANDS OF THE FILTRATION INDUSTRY

By: admin November 29th, 2011

Wallingford, CT – (November 29, 2011) – When Dexmet Corporation, a manufacturer of precision expanded metal foils (MicroGrid®) and polymer films, wanted to add a high performance polymer to its PolyGrid® portfolio, it chose one of the highest regarded performing thermoplastics in the world, Victrex APTIV® film made with VICTREX® PEEK™ polymer. Utilizing specifically designed proprietary equipment and processes, Dexmet performs an expansion procedure on the high performance polymer to produce a diamond configured, open area mesh product for filtration applications. Providing all of the outstanding properties of VICTREX PEEK polymer in a versatile thin film format, APTIV film was selected for its superior combination of mechanical strength, chemical and high temperature resistance. “While it technically falls under our high temperature PolyGrid product line,” said Ken Burtt, VP of Sales and Marketing at Dexmet, “APTIV film provides much more than just high temperature capabilities. It also has great chemical compatibility as well as mechanical strength that may be required for certain filter applications in harsh environments making it more of a ‘high performance’ PolyGrid material.”

Dexmet offers corrugated expanded material to client base

By: admin October 21st, 2011

Dexmet now offers a new process variation of corrugating their precision expanded materials. This process variation was developed for high-performance applications that require the expanded material to be much thicker or larger, that require more surface area and better cross-directional flow.

Implementing Expanded Metal Into Your Manufacturing Process

By: admin July 6th, 2011

One of the questions that we frequently get from customers is, “We’re having trouble out in the shop working with your expanded metal mesh. Is there anything I can do to make it easier for my manufacturing people?” Fortunately, the answer is, “Yes, there is.” But let’s first talk about what the problem might be and then what you do to make things go smoother.

Lightning Strike Testing

By: admin June 1st, 2011

The video below shows test involving composite panels and how well they hold up to a lightning strike of 200,000 amps without the MicroGrid® protection and with Dexmet's MicroGrid® incorporated into the composite material.