The Fusion Process: Solder Paste & Brazing Paste for a more efficient joining process

Fusion’s brazing pastes and soldering alloys are meticulously blended to meet your specific requirements and ensure more reliable, more consistent joints. Each one consists of the following key components:

1. Finely Atomised Filler Metal
   Our alloys are meticulously alloyed to precise standards of composition, melting range, and compatibility with base metals. While most Fusion alloys conform to industry standards, we also offer custom formulations for enhanced properties.
2. Fluxing Agent
   Our specially designed fluxing agent efficiently removes and prevents the reformation of surface oxides during the heating process. The type and quantity of fluxing agent are carefully matched to each application, ensuring reliable joints with minimal flux residue.
3. Paste-like Binder
   The binder used in our paste alloys maintains a stable suspension of flux and filler metal, minimising interaction between the metal and flux. Through controlled formulation, our paste alloys offer consistent application and localised distribution in the joint area.

Applicators: Streamlined Application

Unlike other soldering or brazing alloys, Fusion paste alloys enable a convenient single-step application of filler metal and flux to the assembly. The paste alloy is stored in a pressurised reservoir, tailored to meet production requirements for an entire 8-hour shift.

Our positive-displacement applicators can be used for hand-held, semiautomatic dispensing or integrated into high-speed production equipment for fully automatic processing.

Heating Methods: Versatility and Efficiency

Fusion brazing paste alloys can be effectively heated using conventional methods, such as open flame, atmospheric or non-atmospheric furnace, infra-red, resistance, or induction heating. At the specified temperature, the flux is activated, effectively cleaning the joint area by removing surface oxidation.

This promotes optimal wetting and ensures a strong bond. The atomised filler metal then liquefies and flows onto the newly cleaned area, subsequently cooling and forming a structurally sound brazed or soldered joint.

‘Total Responsibility’

Our unique process offers numerous advantages, including the elimination of pre-fluxing, precise measurement of filler metal and flux, cost reduction through automation, and consistent joint quality by minimising human error. Through our ‘Total Responsibility’ approach, we ensure a coordinated effort in manufacturing paste alloys, applicators, and equipment.

Our expert team also provides system installation and comprehensive service follow-up. By implementing Fusion brazing and soldering paste, you can achieve efficient and reliable results in all applications. Contact us today to explore how our tailored solutions can optimise your joining processes.