Induction Heating Aluminum Catheter Tipping

Induction Heating Aluminum Catheter Tipping With IGBT Heating Units

Objective: To heat an aluminum catheter tipping die to above 2850F within 2 to 5 seconds for the forming of catheter material. Presently, heating is performed in 15 seconds with older induction equipment. The customer would like to use solid state induction equipment to reduce the heating times and develop a more efficient process.
Material: Aluminum catheter tipping die measuring 3/8″ OD and 2″ long with a nonmagnetic sleeve over the heat zone. The catheter material was described as being similar to polyurethane plastic. Also, a 0.035″ diameter steel wire was inserted into the catheter tube to prevent collapsing.
Temperature: 5000F
Application: The DW-UHF-4.5kW solid state induction power supply was determined to most efficiently produce the following results:
A heating time of 3.3 seconds to reach 5000F and form the catheter was achieved through the use of a two (2) over two (2) turn helical coil.
A quality catheter was formed by pressing 1/2″ of the polyurethane tube into the mold while retaining shape through the use of a 0.035″ wire to prevent collapsing of the tube.
Laboratory results show that a substantial time decrease was accomplished which will allow for a significant increase in production while not sacrificing quality.
Equipment: DW-UHF-4.5kW solid state induction power supply including a remote heat station containing one (1) capacitor totalling 1.2 μF.
Frequency: 287 kHz

Induction Heating Aluminum Catheter Tipping

Induction Heating Aluminum Pipe

Induction Heating Aluminum Pipe For End Forming With High Frequency Induction Heater

Objective Through heating the top 2” (50.8mm) of aluminum oxygen tank to form a rounded end with a hole for oxygen valve
Material Aluminum oxygen tank with open end 2.25” (57.15mm) diameter, 0.188” (4.8mm) wall thickness
Temperature 700 ºF (371 ºC)
Frequency 71 kHz
Equipment • DW-HF-45kW induction heating system, equipped with a remote workhead containing two 1.5μF capacitors for a total of 0.75μF
• An induction heating coil designed and developed specifically for this application.
Process A five turn helical coil is used to heat the open end of the oxygen tank. The tank is heated for 24 seconds to reach 700ºF (371 ºC).
Results/Benefits Induction heating provides:
• Uniform through heating
• Fast, energy-efficient heat
• Fast, controllable and repeatable process
• Hands-free heating that involves no operator skill for manufacturing

induction heating aluminum pipe

Induction Brazing Aluminum Automotive

Induction Brazing Aluminum Automotive 

Objective: Heat aluminum for an automotive brazing application
Material: Aluminum tubing 0.50 (12.7mm) dia, an aluminum boss 1” (25.4mm) long, flux filled braze rings
Temperature: 1200 ºF (649 ºC)
Frequency: 370 kHz
Equipment • DW-UHF-10KW induction heating system, equipped with a remote workhead containing one 1.0μF capacitors for a total of 1.0 μF
• An induction heating coil designed and developed specifically for this application.
Process A multi turn pancake coil is used to heat the joint between the aluminum tubing and boss. The joint heats to temperature in 1.5 minutes and the braze ring melts forming a clean brazed
joint.
Results/Benefits Induction heating provides:
• Hands-free heating that involves minimal operator skill for manufacturing
• Flameless application
• Reliable, repeatable aesthetically pleasing braze joint
• Even distribution of heating