Braze-fitting carbide metal blades

Induction brazing: fast and reliable brazing of carbide blades on meat grinder knives

A German manufacturer relies on induction brazing by EMAG eldec to permanently join carbide blades to meat grinder knives. The process is fast, precise, and extremely reliable.

Induction brazing: EMAG eldec generators ensure process reliability

The four-blade knife of an industrial meat grinder has to withstand enormous loads: Situated between a conveyor screw and a perforated disc, it cuts the meat into a fine paste. In large factories, the machine runs for many hours a day. The continuous operation wears down the blades of the knife. The tool therefore needs to be replaced frequently.

A German company specializing in the production of high-quality grinder knives has opted for high-strength carbide blades for this application. They are brazed onto the knife by induction. The process consists of several steps: First the specialist manufacturer applies flux and a three-layer brazing strip to the base structure and the blades. The second step is induction brazing using inductors and generators from EMAG eldec. The entire knife is placed on a star inductor that heats up the part evenly from below. The process only takes about 50 seconds.

The EMAG eldec technology ensures a stable brazing temperature of about 720°C – this temperature is never exceeded as otherwise the flux would lose its effectiveness and would burn. This makes the entire induction brazing process extremely reliable and fast. The quality of the brazing is absolutely uniform across the knife and its carbide blades.

Braze-fitting carbide metal blades

Advantages

  • Fast induction brazing
  • High process reliability
  • Energy-efficient process
  • Consistent part quality
  • No open flame

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