Soldering brass and copper (medical equipment)

Objective

To heat brass and copper for soldering application on medical equipment

End Product

anesthetic equipment

Equipment

Ambrell 6 kW induction heating system, equipped with a remote workhead containing two  0.33μF capacitors for a total of 0.66μF

An induction heating coil designed and developed specifically for this application.

Materials

Brass ring, brass and copper pieces 5.11” (130mm) long, 4.3” (110mm) OD & 0.3” (7mm) at thickest point and solder rings

Temperature

392 ºF (200 ºC)

Frequency

306 kHz

Testing

This process is completed in two steps that use a 3 turn helical coil. The first process is to solder the brass ring to the copper piece which takes 85 seconds. The second step is to solder a large brass piece to the first assembly. This process takes 50 seconds for a total process time of two minutes 15 seconds. 

Benefits

Induction heating provides:

• Hands-free heating that involves no operator skill for manufacturing

• Even distribution of heating

• Faster process time, current process takes 5 minutes

• Consistency by using solder rings

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