Design development of the Explosion proof IR heater,
Flat type heater etc.

Lineup of Explosion proof IR heater, flat type IR heater, etc　

About a IR heater

Principle of IR heater
The osmosis of far-infrared rays is good.
And uitable for heating a thing from an inside and drying.
A apparatus heats ceramics with an electric heater and is making
far-infrared rays emit.

The wavelengths which align with a substance to dry differ.
But, almost all substances have a 2～10μm absorption spectrum.
Accordingly, the electromagnetic waves of an alignment wavelength
are outputted by heating ceramics.
And molecule movement is caused by alignment electromagnetic waves,
and combination of a molecule separates and dries.

About an Explosion proof IR heater
The preset temperature of official approval success is low.
Therefore, SL ceramics which emit far-infrared rays efficiently at
a low temperature are used.
Becomes equipment which obtains sufficient far-infrared ray effect.
The heater's body and an operator control panel make a pair of
explosion proof approval apparatus.

Clean dryness
A IR heater differs from the hot wind heater to which air is moved.
The clean dryness which cannot be easily subject to the influence of floating dust is possible.

Feature of SL ceramics
SL ceramics have the feature of the mix.
Far-infrared rays output efficiently at low temperature.
The feature to have wavelength of 3 micrometers and 6 micrometers, at 500 ℃.

Energy conservation
How many dry capability are different with the same electric power?
When SL ceramics are compared with the thermal spraying ceramics 600W (the same output), it can dry with about 1/2 electric power.
Ceramic heater comparison graph [PDF]

Merit and demerit of IR heater's drying

Shortening of drying time and furnace length is possible. High quality of a product is possible by low-temperature dryness. The merit of the electric heater maximum is the speed of temperature rising and temperature fall. With a small heater, it rises and becomes usable in 5 minutes. Temperature drop falls to the temperature which can carry out a drop dead halt in 5 minutes. A furnace and installation construction are cheap. (Boilers are unnecessary)

Since the temperature on the surface of a heater is high, a heater is detached in an emergency. Or the mechanism intercepted by a shutter etc. is adopted. If it does not come out, will become a cause of product modification.

Low temperature dryness of Explosion proof IR heater
Can dry without raising the temperature of the foundations substrate used as a base.
In hot air drying, since a hot wind is direct per heated, it may become a cause of the heat deterioration of a product.
In far-infrared ray drying, By using IR spectrum which the substance has, it is possible to carry out drying by heating only of the solvent,
without heating a foundations substrate.
If the rise of product temperature can be suppressed, the necessity for a next cooling process will be lost.
And it is considered to be a big effect that degradation of physical properties is moreover suppressed.

The perviousness of the outstanding heat is used
The internal exothermic effect in molecule movement by electromagnetic waves shows up.
Thereby, it is heated from the inside of a substance.
And hardening starts and heating goes to the surface.
Problems, such as a blowout burst resulting from the expansion difference of the surface and an inside, become difficult to occur.
Therefore, it is suitable also for heating before lamination emboss processing.