The NOCOLOK® International Brazing Seminar 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.
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The NOCOLOK® International Brazing Seminar 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.
The NOCOLOK® International Brazing Seminar 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.
The NOCOLOK International Brazing Seminar 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.
The NOCOLOK International Brazing Seminar 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.
The Theory and Practice of the Flame- and Furnace-Brazing of Aluminium
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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 Brazing (CAB) of aluminium heat exchangers with non-corrosive fluxes (NOCOLOK® Flux).
- The methodology of how to ensure that the brazing process selected is, indeed, the one that represents ‘best practice’.
Who should attend this two-day seminar?
- Technical staff who need to have a specific understanding of either one or both of the fine details of the technology of the brazing of aluminium with flames, and/or the NOCOLOK® furnace brazing process.
- Design and production engineers who are fabricating, or who are intending to fabricate, aluminium pipe-work assemblies and/or condensers and/or evaporators.
- Production Engineering Department Managers whose duties include day-to-day responsibility for the brazing of aluminium.
- Quality management personal of all levels in all departments including design, production, customer contract negotiations and standards including ISO 9001:2015
Watch the video of the Solvay Technical Training Seminar
Here you can find the detailed seminar program and registration.
And here the hotel booking form.
The Theory and Practice of the Flame- and Furnace-Brazing of Aluminium

Dates: October 9 & 10, 2018 in Hannover/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 Hannover, 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 Brazing (CAB) of aluminium heat exchangers with non-corrosive fluxes (NOCOLOK® Flux).
- The methodology of how to ensure that the brazing process selected is, indeed, the one that represents ‘best practice’.
Who should attend this two-day seminar?
- Technical staff who need to have a specific understanding of either one or both of the fine details of the technology of the brazing of aluminium with flames, and/or the NOCOLOK® furnace brazing process.
- Design and production engineers who are fabricating, or who are intending to fabricate, aluminium pipe-work assemblies and/or condensers and/or evaporators.
- Production Engineering Department Managers whose duties include day-to-day responsibility for the brazing of aluminium.
Watch the video of the Solvay Technical Training Seminar
Here you can find the detailed seminar programme and registration.
And here the hotel booking form.
The Theory and Practice of the Flame- and Furnace-Brazing of Aluminium

Dates: September 5 & 6, 2017 in Hannover/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 Hannover, 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 Brazing (CAB) of aluminium heat exchangers with non-corrosive fluxes (NOCOLOK® Flux).
- The methodology of how to ensure that the brazing process selected is, indeed, the one that represents ‘best practice’.
Who should attend this two-day seminar?
- Technical staff who need to have a specific understanding of either one or both of the fine details of the technology of the brazing of aluminium with flames, and/or the NOCOLOK® furnace brazing process.
- Design and production engineers who are fabricating, or who are intending to fabricate, aluminium pipe-work assemblies and/or condensers and/or evaporators.
- Production Engineering Department Managers whose duties include day-to-day responsibility for the brazing of aluminium.
Watch the video of the EABS Technical Training Seminar
Here you can find the detailed seminar programme and registration.
The Theory and Practice of the Flame- and Furnace-Brazing of Aluminium
Dates: September 6 & 7, 2016 in Hannover/Germany

Purpose of the Seminar:
This technical training seminar will be presented in the English language at the Conference Centre and laboratories of Solvay GmbH, in Hannover, 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 Brazing (CAB) of aluminium heat exchangers with non-corrosive fluxes (NOCOLOK® Flux).
- The methodology of how to ensure that the brazing process selected is, indeed, the one that represents ‘best practice’.
Who should attend this two-day seminar?
- Technical staff who need to have a specific understanding of either one or both of the fine details of the technology of the brazing of aluminium with flames, and/or the NOCOLOK® furnace brazing process.
- Design and production engineers who are fabricating, or who are intending to fabricate, aluminium pipe-work assemblies and/or condensers and/or evaporators.
- Production Engineering Department Managers whose duties include day-to-day responsibility for the brazing of aluminium.
Watch the video of the EABS Technical Training Seminar
Here you can find the detailed seminar programme and registration.
Aluminium joining – Brazing ‐ Flux function
What is brazing?
Brazing is the joining of metals using a molten filler metal. On melting, the filler metal spreads between the closely fitted surfaces, forms a fillet around the joint and on cooling forms a metallurgical bond. By technical definition ‚brazing‘ is a joining process in which the filler metal melting temperature is above 450°C, but below the melting point of the metals to be joined.
Aluminium brazing ‐ How does it work?
An aluminium oxide layer is formed instantly on aluminium in the presence of oxygen. This oxide layer has to be removed before brazing and the formation of a new oxide layer has to be prevented. The oxide layer is chemically dissolved by a FLUX.
Aluminium joining – Flame Brazing
Flame (torch) brazing of aluminium involves locally applied heat typically generated by a slightly reducing oxy‐acetylene or oxy‐natural gas flame. (Gas mixture is preferred as it is cheaper and more comfortable).
Care must be taken to ensure even heat distribution. As with other aluminium brazing processes, close temperature control is important – it`must be closely monitored as there is no colour change in the aluminium to indicate temperature.


Aluminium joining – Basic Requirements
CORRECT FLUX / CORRECT FILLER METAL / CORRECT DIFFUSION OF FILLER METAL
The first requirement of an Aluminium brazing is to be chemically effective.
Fluxes are categorized as active (corrosive) and inert (noncorrosive)
CORRECT BRAZING TEMPERATURE
Between liquidus and solidus of filler metal
Decide how to manage the small thermal window between the melting temperature of the brazing filler metal and thermal damage to the base metals
BRAZING THROUGH CAPILARITY / RIGHT GAP OF THE BRAZING JOINT
Apart from the selection of flux and filler metal, important process parameters are the cleanliness and proper geometrical alignment of the individual components.
To be continued…







