Induction brazing



The brazing joint...



Brazing is a thermal process of material engaging joining whereby a fluid phase occurs by melting a solder (fusion soldering) or by diffusion at the border surfaces (diffusion soldering). The solidus temperature of basic materials will not be reached (excerpt of DIN 8505 ?brazing?).

The result ...

A permanent, material engaging and electricity conductive joint

The effectiveness of solder...



when applying the brazing technology the materials to be joined are heated to operating temperature (solidus temperature of the solder to be used). The solder positioned in the brazing area flows always to the hottest area due to capillary action and this way fills the brazing gap independently. An exact dimensioning of brazing gap and calculation of required amount of solder go hand in hand.

Which materials/metals can be brazed...



The brazing technology provides the possibility of joining any metals:

  • steel, stainless steel
  • carbide metals
  • PCD tools (poly-cristalline diamond)
  • CBN tools (cubic-cristalline boron nitride)
  • copper
  • brass
  • aluminum
  • silver
  • gold
  • etc.

The use of induction brazing technology...



The inductive heating is characterized by the direct generation of heat at the workpiece and by freely  shaped heating zone of the inductor form. Short heating times and the local heating area reduce again the cool-down period of workpiece after completion of the brazing process by heat drainage toward the area not having been heated by the inductor. Induction heating plants guarantee staff-independent and process-sure brazing quality for individual and serial brazing productions.

Moreover it is possible to cover manual or automated tasks by applying the induction heating technology. Partially, already realized manual working places can be automated at a later date.

Application 1



Inductionbrazing
Induction Brazing of Hard metal

The application photo above shows the inductive brazing of a hard metal piece with a 4-hoist inductor. The heating length will also be determined by the inductor length.

Application 2



Softsoldering
soft-soldering of brass

Inductive soft-soldering of a piece of brass. This safety construction element is being mounted in an incinerator. As soon as the temperature exceeds a certain point at a defined area, the soldering joint dissolves and quenching water flows into the incinerator.

Application 3



Inductive Brazing
Inductive brazing of brass

Inductive brazing of a brass handle. The brazing rod is being fed manually.

 

Application 4



Inductive Brazing
Inductive brazing of hard-metal tools

Inductive brazing of hard-metal tools used in the mining industry. In one working step 5 hard-metal pieces are brazed to the base body.

 

Application 5



Endotermic-Inductive-Brazing
Inductive gas-shielded brazing

Inductive gas-shielded brazing of water pump connections in the automotive industry. Under a shielded gas cap 4 pieces are simultaneously inductive brazed and are cooled down in this closed shielded gas environment to room temperature. The gas-shielded brazing technology allows the inductive brazing of parts without flux material and annealing color.

 

Further application areas for induction heating:



  • Induction brazing of metals, soft-soldering and hard-brazing
  • Induction brazing of hard metals /PCD/PCBN
  • Induction hardening ? induction annealing ? induction tempering
  • Induction shrinking ? shrinking on & shrink-wrapping  deep injection
  • Induction heating adhesives hardening
  • Welding applications, pre- and postheating  
  • Induction melting
  • Induction forging  
  • Induction heating test technique & science & calibrating
  • Induction heating shielded gas & vacuum technology
  • Induction heating drying ? coating
  • Induction heating general ? all applications  
  • General heat treatments of metals