Induction brazing application for reliable connections in tubular heating elements used in thermal applications.
Induction brazing is an ideal technology for manufacturing tubular heating elements, ensuring secure and durable connections for efficient heating of liquids. The precise temperature control during the process guarantees flawless joints and extends the product’s lifespan.
This advanced brazing technique effectively joins copper tubes and brass flanges, leveraging induction technology to ensure precise and uniform heating.
This application utilizes a Platinum MF25 medium-frequency generator to achieve optimal brazing results. The process is carefully controlled to ensure precision and durability, particularly for fluid heating applications.
Details of the brazing process:
The robust braze produced is not only efficient but also meets stringent safety standards, making it ideal for demanding operational environments. Moreover, the integration of an automated filler material delivery system enhances the repeatability of the process.
The brazing program involves reaching a temperature of approximately 800° C and maintaining it for 5 seconds, the optimal time to allow the alloy to penetrate by capillarity and create the correct meniscus.
After the first brazing the main body is already hot, so the solution of using a power-temperature program is optimal to avoid cold or non-compliant brazings.
It is noted that the induction brazing time tends to stay constant after the first cycle as the temperature of the piece is already stabilized, which is why the quality of the brazing is perfect.
The Platinum MF25 generator (25 kW calibrated at 66% of power) was used for this application, the Ø10mm copper tubes were coupled with the respective copper tube base. We reconstructed a repetitive industrial process, brazing the tubes in sequence without resting the piece. Below we list the results:
The brazing is almost perfect. The times, after brazing the first tube, are significantly reduced since the “support” piece is already at temperature from the previous operations. Inductors made specifically for these tests are suitable for this type of brazing. However, they can still be optimized to specific geometries and the brazes can be further improved.
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In our company we have always considered customers at the center of our development and sales processes. We are convinced, in fact, that only a methodical approach that brings out critical issues and needs within production processes generates added value and successful investments.
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