Filler Metals for Joining


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Welding and Brazing -- Filler Metals


Book Description




Welding and Brazing -- Filler Metals


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Advances in Brazing


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Brazing processes offer enhanced control, adaptability and cost-efficiency in the joining of materials. Unsurprisingly, this has lead to great interest and investment in the area. Drawing on important research in the field, Advances in brazing provides a clear guide to the principles, materials, methods and key applications of brazing. Part one introduces the fundamentals of brazing, including molten metal wetting processes, strength and margins of safety of brazed joints, and modeling of associated physical phenomena. Part two goes on to consider specific materials, such as super alloys, filler metals for high temperature brazing, diamonds and cubic boron nitride, and varied ceramics and intermetallics. The brazing of carbon-carbon (C/C) composites to metals is also explored before applications of brazing and brazed materials are discussed in part three. Brazing of cutting materials, use of coating techniques, and metal-nonmetal brazing for electrical, packaging and structural applications are reviewed, along with fluxless brazing, the use of glasses and glass ceramics for high temperature applications and nickel-based filler metals for components in contact with drinking water. With its distinguished editor and international team of expert contributors, Advances in brazing is a technical guide for any professionals requiring an understanding of brazing processes, and offers a deeper understanding of the subject to researchers and engineers within the field of joining. Reviews the advances of brazing processes in joining materials Discusses the fundamentals of brazing and considers specific materials, including super alloys, filler metals, ceramics and intermetallics Brazing of cutting materials and structural applications are also discussed




The Metals Blue Book


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Welding and Brazing -- Filler Metals


Book Description




Advances in brazing


Book Description

The amendment of the Drinking Water Directive has reduced the permissible nickel ion content in drinking water from 50μg/l to 20μg/l. The development of draft standards has begun on a European level so that national standards can be adjusted and transformed to meet European and international standards. For example, DIN EN 15664-1, valid since June 2008, regulates the influence of metallic materials on water intended for human consumption. Since heat exchangers joined with nickel-based filler metals are applied in the equipment for drinking water systems, there is a possible risk of exceeding the limits for nickel ions. So far, components joined with nickelbased filler metals have been applied according to the 5% rule defined in DIN 50930-6. Under the present circumstances, the ban on nickel-based filler metals as a result of the amendment of the Drinking Water Directive will cause severe economic losses for the suppliers of solders as well as for customers. Nickelbased filler metals have not yet been included in the list of harmless materials. Investigations on the release of nickel ions into drinking water carried out according to DIN EN 15664-1 are presented. These investigations are one step forward for the inclusion of nickel-based filler metals in the list of harmless materials. Further measures, which will also be reported in this contribution, have to be taken.







Metals Joining Manual


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