Note: Braze a stainless steel braided hose to copper elbows

Objective:

Braze a stainless steel braided hose to copper elbows for a braided hose assembly. 

End Product:

Braided hose

Equipment:

Ambrell 2.0 kW induction heating system, equipped with a remote workhead containing two 0.33 μF capacitors for a total of 0.66 μF An induction heating coil designed and developed specifically for this application. 

Materials:

Stainless steel braided hose 3/8 in (9.5mm) OD copper elbow 1/4 in (6.3mm) OD braze preform rings black flux

Temperature:

1400 °F (760 °C)

Frequency:

267 kHz

Testing:

A two-turn helical coil is used to heat the braided hose assembly. Braze rings are placed at the joint on the copper elbow and flux is applied to the entire surface of the assembly. The assembly is placed in the heating coil and the braze flows within 30-45 seconds. This creates a liquid and gas tight braze between the copper and stainless steel braided hose.

Benefits:

  • Liquid and gas-tight braze

  • Energy efficient heat in a minimal amount of time

  • Controllable braze flow through the use of braze rings

  • Even distribution of heating 

Braze a stainless steel braided hose to copper elbows

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