What is the physical reason behind induction heating?
In the field of industrial heating, there are technologies that are rapidly replacing conventional electrical resistance heating and gas heating. That is induction heating.
The first question many people ask is,
How can you heat metal without using a heater?
Why on earth can we save more power?
This is not a secret, but a combination of some basic physics.
One of the key words: electricity makes metals "heat themselves."
The traditional heating method is this:
A heat pipe produces heat, transmits it to the device, and then transmits it to the material.
Here's how induction heating works.
It generates heat directly inside the metal.
There's no intermediate communication.
Reduce heat loss.
It's more efficient.
This is the fundamental difference between the two.
Two, key principle one: electromagnetic induction.
The first step in induction heating is to utilize the principle of electromagnetic induction.
It's easy to understand:
When a current flows through the coil, the magnetic field changes.
This magnetic field ACTS on the metal and "generates electric current" inside.
It can be thought of as follows.
The magnetic field "agitates" the electrons in the metal to work.
3. Key principle part 2: eddy current effect (the real cause of heat generation)
When electricity flows inside a metal, a special phenomenon occurs.
Eddy currents.
The current swirls in the metal.
Something important happens here.
There's resistance to the current flow.
Resistance converts electrical energy into thermal energy.
The result is this:
Metal emits heat from the inside.
And heat it evenly.
I'm going to heat it faster.
It's more energy efficient.
4. Key principle part 3: skin condensing effect (heating accuracy is higher)
Another important physics of induction heating
Skin Effect.
To put it simply, this is it.
High week wave currents tend to concentrate on the metal surface.
This has two benefits.
The surface is heating very fast.
To precisely control the depth of the heating.
Here's an example.
We need to heat the surface.
Frequency adjustment is required.
This is why induction heating is "very controllable".
Fifth, why is induction heating more energy saving?
If you understand the above three principles, you can see why they are saving electricity.
1.There's no middle loss.
It's traditional heating.
Electricity, heat pipes, air, equipment, and materials.
Inductive heating.
Electricity generates heat directly from inside the metal.
Less energy loss.
2. Focus calories.
Induction heating only heats the part you need.
It doesn't warm the air.
It doesn't heat the surrounding structure.
Energy efficiency is over 90 percent.
3. Start fast, stop fast
Conventional heating requires preheating and cooling.
Inductive heating.
It's heat when it's energized.
When the power goes out, it stops.
To avoid a lot of invalid energy.
6. Why is electromagnetic steam more efficient from principle to application?
Understanding these physical principles, looking at the electromagnetic steam generator is very clear.
It's a traditional steam engine problem.
First, you heat the tank and the hose.
It transfers the heat to the water.
They lose a lot of heat and are inefficient.
Inductive heating.
It directly heats the metal heat body and transfers heat efficiently.
This is what made the difference.
The steam will be faster.
Reduces energy consumption by 20 to 40 percent.
Temperature control becomes more accurate.
No fire, safer.
Seventh, which industry is more suitable for application?
Due to these physical advantages, induction heating is widely used.
Plastic industry (injection molding machine, extrusion machine).
Steam fungicide for food processing.
Is the chemical industry.
Is the medical industry (sterilization).
It is industrial cleaning (steam cleaning).
This is particularly effective in industries that require "temperature stability + energy saving."
8. Conclusion: simple principles can make a big difference.
The core of induction heating is three physical phenomena.
Electromagnetic induction
Is the eddy current effect.
It's a skin gathering effect.
It may seem easy, but the changes it has made are huge.
From external heat to internal heat.
From high loss to high efficiency.
Evolved from conventional devices to smart energy saving systems.
I'll write it at the end.
If your factory is facing
Electricity costs are getting higher and higher
It's inefficient at heating.
Steam systems consume more energy.
Production stability is poor.
That's physically true,
Induction heating is a more advanced and rational choice.
We have been focusing on industrial electromagnetic heating technology for more than 15 years.
Induction heating total solution.
Electromagnetic steam generator. It's made-to-order.
Energy saving and retrofitting.
We welcome inquiries about upgrading from "power consuming equipment" to "efficient earning system".
