Breaker Core (Steel Breaker Core)

Steel breaker core directly under the exothermic feeder.

FEEDEX K (Fig. 1, Foseco Foundry Division Vesuvius GmbH) highly exothermic feeder sleeves combine the best in class feeding performance that foundries with unsurpassed knock-off cleanliness and consistency.

The unique design of the stepped steel breaker core and optimized neck configuration allow spot feeding application to even the smallest casting contact areas, create a defined knock-off edge at the casting surface and ensure excellent sandcompaction underneath the feeder sleeve.

Since the compaction mechanism is confined to the core and not the feeder, FEEDEX K sleeves offer consistent, predictable feed metal volumes for improved process security reduce the risk of loose exothermic material falling into the feeding cavity (Fig. 2, Foseco Foundry Division Vesuvius GmbH)

An additional benefit of using a steel breaker core is the avoidance of graphite degeneration problems due to exothermic material coming into contact with the surface of the casting.

  • Fig. 1: Exothermic feeder with steel breaker core (Foseco Foundry Division Vesuvius GmbH),
  • Fig. 2: The result is a feeder profile that requires little or no cleaning (Foseco Foundry Division Vesuvius GmbH)
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