Solutions for brazing challenges in battery coolers – Part 2
Aluminium Brazing
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4M ago
Solutions for brazing challenges in battery coolers – Part 2 Leszek Orman, Sebastian Gutmann, Solvay Fluor GmbH, Germany 3. Not-brazed dikes/dimples Not-brazed dikes/dimples is the most common brazing problem. The battery coolers must have a perfectly flat surface from one side due to the fact that the batteries are positioned on that surface. When some of the inner dimples are not properly brazed, a small deformation (bulge) of the initially flat surface are formed during pressure leak test. Such parts are therefore scrapped. Case 1 A cut out from a plate battery cooler with bulged surface ..read more
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Solutions for brazing challenges in battery coolers Part 1
Aluminium Brazing
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6M ago
Solutions for brazing challenges in battery coolers Part 1 Leszek Orman, Sebastian Gutmann, Solvay Fluor GmbH, Germany Abstract Thermal management of electric vehicles is faced with challenges, as batteries need to be kept at a defined temperature range between 15°C and 35°C in order to function at peak performance throughout the life of a vehicle. The manufacture of such battery cooling systems involves controlled atmosphere brazing technology using noncorrosive flux. OEMs develop different battery cooler designs that require adapted fluxing methods. In this paper, selected cases of fluxin ..read more
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Invitation to the SOLVAY International Brazing Seminar 2024
Aluminium Brazing
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6M ago
The Theory and Practice of the Flame- and Furnace-Brazing of Aluminium  April 16 & 17, 2024 in Hanover, Germany Purpose of the Seminar:  The language of the seminar is English. It will take place in the Conference Center and laboratories of SOLVAY GmbH, in Hanover, Germany. It will provide information concerning the manufacturing practices commonly used for brazing operations and, in particular, will address the three fundamental aspects of the industrial-scale brazing of aluminium. These are: Controlled Atmosphere Brazing (CAB) of aluminium heat exchangers ..read more
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New NOCOLOK Video „Research & Innovation in Bad Wimpfen“
Aluminium Brazing
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1y ago
New NOCOLOK Video „Research & Innovation in Bad Wimpfen“ NOCOLOK®, the world’s leading flux for aluminium brazing, is not only produced in various grades at the Solvay plant in Bad Wimpfen, but is also continuously developed and optimised for new applications. Take a look to our laboratories and the pilot plant ..read more
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Conference ALUMINIUM BRAZING 2023
Aluminium Brazing
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1y ago
Conference ALUMINIUM BRAZING 2023 23. – 24.05.2023, Düsseldorf, Radisson Blu Conference Hotel The NOCOLOK® team is pleased to announce the next participation at the ‚International Congress and Exhibition on Aluminium Brazing‘. This event will be combined with the ‚Conference on Aluminium Heat Exchanger Technologies for Heating, Ventilation, Air Conditioning and Refrigeration (HVAC&R)‘. Since 2000 – the ‚Aluminium Brazing‘ brings together professionals of the aluminium heat exchanger industry with their broad scientific and technological backgrounds as well as experiences in design and app ..read more
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Project Study of Gel Formation in Engine Coolants – and Considerations for the Development of Further Improved Coolant Compositions Part 2
Aluminium Brazing
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1y ago
Project Study of Gel Formation in Engine Coolants – and Considerations for the Development of Further Improved Coolant Compositions Part 2 written by Dr. Alexander Rehmer (Solvay), Dr. Andreas Haas (Arteco NV), Dr. Jurgen de Kimpe (Arteco NV), Dr. Serge Lievens (Arteco NV) and Dr. Hans-W. Swidersky (Solvay). During recent years, gel blockage in engine coolant systems with aluminum heat exchangers produced by CAB (controlled atmosphere brazing – using non-corrosive flux) has gotten more and more attention in the automotive industry. A general understanding of gel formation processes in engin ..read more
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Analysis of Brazing Imperfections by Metallographic Investigation / Optical Microscopy – Part 1
Aluminium Brazing
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2y ago
Analysis of Brazing Imperfections by Metallographic Investigation / Optical Microscopy – Part 1 In everyday practice we can encounter problems connected with brazing imperfections – often manifested as leaking. In order to identify the failure root causes, usually a detailed examination needs to be perform. Optical metallography is one of the most important tools for such an analysis. The purpose of this article is to present the basic principles for performing analysis of brazing joints, and to show what information can be obtained from the investigation. Before starting to work with an opti ..read more
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NOCOLOK® Aluminium Brazing Webinar – successful and well received
Aluminium Brazing
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3y ago
NOCOLOK® Aluminium Brazing Webinar – successful and well received The pandemic situation these days forces us to do things in a different way and to be more innovative. Therefore, the 20th annual technical training event was organized as a Google Meet Webinar – on 2 days tailored for NAM and Asia time zones beginning of November 2020. 376 registrations for the Webinar in 18 countries demonstrate the continuous interest in the aluminium brazing process, as well as NOCOLOK® Flux and its application. The biggest remote community share with 40% comes from NAM region, followed by India and China ..read more
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SOLVAY International Brazing Seminar 2019
Aluminium Brazing
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3y ago
SOLVAY International Brazing Seminar 2019 On October 8th & 9th, 2019 – for the 18th time since 2001 – the Aluminium Brazing Seminar took place at Solvay Fluor in Hanover (Germany).  There was a ‘full house’ with 31 participants from 12 countries – representing 15 companies – plus 5 Solvay participants joining this technical training. The focus was on flame and furnace brazing and products to be used for these applications. The event format – with a mix of theory and practical demonstrations – has proven itself over many years. The flame brazing experts Derek Davies and Hynek P ..read more
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Invitation to the SOLVAY International Brazing Seminar 2019
Aluminium Brazing
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3y ago
The Theory and Practice of the Flame- and Furnace-Brazing of Aluminium  Dates: October 8 & 9, 2019 in Hanover/Germany  Purpose of the Seminar:  The language of the seminar is English. It will take place in the Conference Center and laboratories of SOLVAY GmbH, in Hanover, Germany. It will provide information concerning the manufacturing practices commonly used for brazing operations and, in particular, will address the three fundamental aspects of the industrial-scale brazing of aluminium. These are: The flame brazing of aluminium. Controlled Atmosphere Braz ..read more
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