A Copper Alliance Member
Q & A With Hans-Erhard Reiter of the ADSL Forum
ADSL (Asymmetrical Digital Subscriber Line) is a technology that enables ordinary voice-grade copper telephone wires to also carry high-speed data traffic. Q&A covers ADSL Forum and technology.
Alloy 171 for Electronic Interconnects
Copper-based materials, with its combination of inherent excellent conductivity, formability and spring characteristics make them strategic materials to the connector industry.
Research on Copper Joining Techniques Evaluates New Designs and Brazing Methods
Results of the second part of a two-part research effort, where the second part sought to ascertain whether experimental braze joint designs and alternate braze heating methodologies can economically provide improved brazing quality and higher product performance.
Copper and Aquatic Life
All bodies of water that sustain life have copper present as a naturally occurring element. Look at why this trace mineral is vital to sustenance of plant and animal life.
Copper's Role in the Safe Disposal of Radioactive Waste: Copper's Relevant Properties – Part I
Background material on what radioactive waste is, how much exists, and what makes copper a good choice as a container for buried radwaste.
Copper Motor Rotor Research Update
A look at a cooperative program designed to identify high temperature, thermal shock resistant materials, and then to design, fabricate and demonstrate molds designed to withstand the copper motor rotor die casting environment for an economically acceptable life, i.e., thousands of casting cycles.
Copper: Technology & Standards
Brief history of copper mining techniques from earliest industrial mining days through flash smelting, electrorefining, solvent extraction and electrowinning. Also covers changes in fabrication and production techniques.
Adjusting to Dramatic Changes Occurring in the Interconnect Market - What's Next for the World of Interconnects?
Text of presentation by Ken Fleck covering effects of financial situation in various nations on the interconnect market worldwide.
The Metal of Civilization Standards B115 and B49
A look at two of the American Society for Testing and Materials' (ASTM) technical committees' choices for their most significant standards; B115, which is accepted worldwide as the ultimate standard for the production and commercial trading of copper; and B49, the Standard Specification for Copper Redraw Rod for Electrical Purposes, which was first developed in 1923.
New Copper Alloys - Summer 1998
Notes from the Copper Development Association's (CDA) Standards Advisory Committee Meeting held on August 25, 1998.
Q & A with Hastings Utilities on Proposed Limits on Copper in Nebraska's Drinking Water
Interview with Marvin Schultes, Manager, Hastings Utilities following meeting with EPA officials, Sen. Bob Kerrey, D-Neb., Sen. Chuck Hagel, R-Neb., Rep. Bill Barret, R-Neb., and representatives of communities in Nebraska held a meeting in August 1998 to discuss problems with complying with the EPA's Lead and Copper Rule.
Nebraska Calls for Changes in the "Lead and Copper Rule"
How and why municipalities in Nebraska are attempting to gain relief from the burdens of complying with the Environmental Protection Agency's "Lead and Copper Rule."
Newly Mined Copper: Why Do We Need It?
Examination of why it is not feasible to meet all US copper needs through re-use of scrap copper.
Dollar Coin - Design and Materials
The second US Mint's stakeholders' meeting was held on Wednesday, August 12, 1998 in Washington D.C. to brief the Coin Coalition (a group which promotes the introduction of a new dollar coin) and other interested parties on the technical aspects of the new dollar coin including the alloy design.
Industries of the Future: New Technologies for the Mining Industry
The Department of Energy and the National Mining Association's agreement of June 1998 to launch a government/industry research and development partnership in mining as part of the DOE's "Industries of the Future" program.
How Do They Do That? Making Copper Plumbing Tube
A tour of a modern copper tube mill illustrating how copper plumbing materials are produced.
Free-Cutting Brass: A Closed Environmental Loop
A close look at the ease and thoroughness with which brass is recycled with emphasis on free-cutting brass (UNS/ANSI Alloy C36000).
Where xDSL technologies are currently being used.
xDSL Technology & The Internet (Part II)
A discussion by Marc J. Zionts, CEO, Westell, Inc. on xDSL, a technology which enables ordinary voice-grade copper telephone wires to carry high-speed data traffic as well as telephone calls, thus obviating the need for expensive system upgrades. Includes press release information on telephone company local loop equipment technologies company.
Green Roofs for a Greener Environment
Look at increased use of recycled copper as roofing material in US. Surge caused by aesthetics and ease of installation made possible by new technologies.
How Outokumpu flash smelting technology lowers emissions and costs while increasing capacity.
Overview of Recycled Copper
Walk through process of recycling copper, which accounts for almost half of all copper produced and sold in America every year.
Copper DX Geothermal Heat Pump Web Site
The Copper Development Association (CDA) is sponsoring the creation of a web site designed to allow homeowners to compare the economics of heating and cooling their homes with copper direct exchange (DX) heat pump systems.
Direct Geoexchange Comfort Systems: Technology Increases Performance and Reduces Costs
Review of technology advances since 1980 that simplify GeoExchange units, reducing installation and operating costs while increasing performance.
The Evolution of Telephone Cable
In 1877 Thomas Doolittle developed the process for hard drawn copper wire in the Naugatuck Valley of Connecticut. He had soft, annealed copper wire drawn through a series of dies in order to increase its tensile strength. The hard drawn copper wire was strong enough for overhead wires and copper took over the telephone wire market.
The Secret to Staying Young
Utah's Bingham Canyon, an open pit mine goes from boom (1980) to bust (1982) and back to boom (today) through investment in new technology.
Category 5: How Did We Get Here and Where Do We Go Next?
All cables are not created equal. A look at the advances in cabling technology.
Home Automation Comes of Age: The Future Has Finally Arrived!
Faster computers, more bandwidth and other innovations in the PC are leading to the advent of the truly automatic home. Today's version typically supports interactive voice, data, video, and multimedia, with access to high-performance cabling and interconnection to telephone, cable TV, digital satellite, cellular telephone, and utility telemetry services.
xDSL Technology and The Internet (Part I)
A look at xDSL, which enables ordinary voice-grade copper telephone wires to carry high-speed data traffic as well as telephone calls, thus obviating the need for expensive system upgrades.
Communications Wiring For Today's Homes
New houses and other residential structures are starting to be wired with the cable used for computer networking, called Category 5 (Cat 5) cable, which has the ability to handle tremendous amounts of data and allows many devices to operate over the same cable. New copper based cabling coming onto the applications and should be sufficient to residential data needs for the foreseeable future.
ARI and CDA Sponsor Research on Copper Joining Techniques with Future Refrigerants
Summary of results of research project sponsored by the Air-Conditioning and Refrigeration Institute and Copper Development Association on whether current brazing techniques and methodologies for joining copper tubes are adequate for the alternative refrigerants proposed for future usage.
The Butte Copper Mines
Brief history of Montana's copper mines, which began as gold and silver mines.
Environmentally Friendly Permanent Mold Casting
North America is discovering the advantages of the permanent mold casting process, leading to increased use.
Paul Revere - Copper Industry Pioneer
A look at the copper-related achievements of Paul Revere, including production of the first rolled copper sheets in the US, production of the first cast bell in Boston, and being a major supplier of copper for the US Navy fleet which included nails, bolts, spikes and sheathing.
New Copper Alloys
The Copper Development Association (CDA) Standards Advisory Group is responsible for administering and maintaining the internationally recognized "Unified Numbering System" in North America for all copper and copper alloys. Look at the process for adding a copper alloy.
The History of Brass Making in the Naugatuck Valley
Review of some of the factors that influenced the emergence of brass manufacturing in Connecticut and a history of brassmaking in the Naugatuck Valley.
Because electric motors are the primary source of propulsion in these cars, a larger amount of copper is utilized in their construction. History of use of copper in electric and hybrid gas/electric vehicles and review of options for future.
A Discussion of Future Trends and Their Influences on the Copper Strip, Sheet and Plate Industry Part 1 of 2
Future trends and developments especially in the information technology industry can have a profound effect on the type, quality, and quantity of copper alloy strip manufactured and sold over the next five to ten years.
New Research Program Focuses on Improvements for the 21st Century
The Air-Conditioning and Refrigeration Institute's Board of Directors' new research program (1997) focuses on pre-competitive research to provide solutions to obstacles preventing HVAC&R manufacturers from introducing new systems and components.
CDA Backs DX Geothermal Heat Pump R&D
Look at research sponsored by the Copper Development Association to gain a better understanding of direct exchange ground coupled heat pumps (DX/GCHP) in order to make them a commercial success for home heating/cooling.
Copper Motor Rotors: Application of High Temperature Mold Materials to Die Cast the Copper Motor
A look at die cast copper rotors and how they can provide advantages to motor manufacture or performance.
Innovations was developed to cover technological changes involving copper.
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