Initial tests were completed on a sample without a thermal blanket. A thermocouple is slipped between the copper ring and the steel tube to measure temperature.
To heat steel flange for heat shrink application. Reaching the desired temperature results in adequate expansion to allow for placing of the flange over a graphite seal.
A multi-turn helical coil delivers uniform heat to the entire range of the bearing sizes in the transverse mode.
With an EASYHEAT 2 kW induction heating system, the aluminum tube heated to the required temperature within 30 seconds. Shrink fitting then took place
Induction heating is fast, presents significant energy savings over an electric oven, requires a more modest footprint than an oven and can be easily integrated into an automated process
The client currently uses an electric oven and the heating time is two hours, so at 60 seconds, the time savings with induction is very significant
The customer was using a torch, which can lead to inconsistent part quality. Induction's precise heating means the client can count on consistent results in their process
The customer was using a cold press, but it was creating part defects. This was resolved with induction heating: the process took just two minutes compared to 40 minutes and they were able to achieve their targeted production rate. Induction's fast, precise heating means the client can count on consistent results once it is implemented into their process.
The customer currently uses electric ovens that run 24 hours a day, 5 days per week and their primary concern is to save on the energy cost of heating the parts in the ovens.
A twenty-turn helical coil is used to heat the chain. The chain is fed through the coil at a rate of 1 meter per minute to reach the desired 1760 °F (960 °C) for the tempering process...
A four-turn helical internal coil is used to heat the gear bore. The coil is inserted into the gear bore and power is applied for 90 seconds to reach the required 400 °F (204 °C) and expand the gear bore...
A three turn helical coil is used to heat the steel valve seat. The steel valve seat is placed in the coil and heated for 50 seconds to enlarge the center hole & drop the carbide ring in for the shrink-fitting process.
Induction heating provides repeatable results, reduced cycle time, lower consumables cost and even distribution of heating
A three turn helical coil is used to heat the aluminum pulley. The pulley is heated to 464 °F (240 °C) in 20 seconds to expand the inner diameter and then the inner bearing is inserted to form the completed part.
Induction heating provides more accurate control of heat vs a flame burner, it heats only the knuckle, not the whole part, it prevents discoloring due to lower temperature used and increases productivity due to repeatability & ease of operation. A foot pedal & timer is used.
A four-turn helical coil heats the ring at one end of the assembly. The coil is designed to concentrate the field towards the center of the assembly where the thermal mass is greatest.
Processing with induction heat saves power and time. The complete tube does not have to reach the desired temperature as it does when heating with an oven. Being able to selectively heat a zone allows for a much quicker transfer of heat.
Heating a camshaft gear with a bore size of 1.630" to shrink fit over a steel shaft that has a diameter of 1.632". A temperature of 500F is required for the gear to expand 0.002" in order to slip over the shaft.
To heat an aluminum fuel pump housing measuring 8" x 4 1/2" x 3 1/2" to 375F, allowing steel parts to be inserted.
To heat aluminum and steel camshaft gears to over 500°F within 4 minutes for a shrink fitting application.
Induction heating provides a highly effective joint, accurate & repeatable heat, precise control of cycle times, uniform and repeatable results and hands-free heating that involves no operator skill for manufacturing
Los sistemas de calentamiento por inducción proporcionan la velocidad, precisión y repetibilidad necesarias para producir uniones de ajuste por contracción de gran calidad. Con un inductor de calentamiento bien diseñado, el calentamiento por inducción permite calentar uniformemente la perforación, logrando una expansión repetible. Dado que los sistemas de calentamiento por inducción tienen la posibilidad de incorporar cajas de adaptación remotas, el ajuste por contracción se puede realizar en la línea de producción.
La potencia típica para el ajuste por contracción del metal varía de 1 a 20 kW, dependiendo de las piezas y de los requisitos de aplicación.
Piezas de metal: material de carcasa metálica con poca tolerancia de apertura; inserto para la carcasa (las tolerancias ajustadas del diámetro exterior también son importantes
Dispositivo de alíneación (opcional)
Generador y bobina de inducción: Un calentamiento rápido y preciso funciona mejor.
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