I choose gas or electric infrared?
question requires knowledge of the specific objectives
of each customer. In general terms, gas infrared
is less expensive than electric infrared to operate.
The cost of using electric infrared typically includes
demand charges. But electric infrared is more efficient
than gas infrared. And gas infrared does not have
the forgiveness and flexibility that electric infrared
can provide. But again, your specific objectives
largely dictate the selection of not only the fuel
of choice, but the source itself.
are combination ovens?
ovens are simply the combination of both infrared
and convection in a single oven. Consecutive combination
ovens apply infrared then convection: Ideal for
powder coating. Concurrent combination ovens apply
infrared and convection together: Ideal for drying.
And don't be fooled: Real combination ovens have
independent temperature controls for both the infrared
is high velocity convection?
velocity convection is the intense application of
air to the maximum allowed by the process. An average
oven utilizes about 1,000 feet per minute: High
velocity ovens range from 4,000 to 20,000 feet per
minute. The advantage is simple: The rate of heat
transfer is directly related to the velocity and
turbulence of the air. With no change in source
energy usage, high velocity convection provides
dramatically improved heat transfer.
I have to provide exhaust for electric infrared?
infrared or convection alone may not require an
exhaust. Gas infrared and convection will always
require exhaust. But the process itself may require
that an electric oven provide exhaust, certainly
for liquid coatings and possibly even for powder
coatings. NFPA standards are a great source of guidance.
I have to provide exhaust for a powder coating oven?
in a powder coating oven may not be necessary. But
the specific powder formulation as well as attention
to any vapors emitted as the powder cures in the
oven will determine the need for exhaust. And certainly,
the use of gas infrared or convection will require
it possible to improve on the time and temperature
testing can determine the level of improvement.
The time and temperature regime specified by the
powder manufacturer is usually a conservative estimate
based on results from testing in a lab convection
oven. To assist their customers, some manufacturers
are now even including an infrared specification
that is closer to the actual time and temperature
required in an effective oven.
is a detailed plan of attack used throughout the
design and manufacturing process of every oven and
machine we build. The engineering of a custom oven
or machine requires more than just an application
of principles. It requires creativity, innovation,
and a clear focus on the needs of the customer.
The result is not just equipment, but a solution.
do I buy plastisols? Coatings?
have put together a short list highlighting those
companies we recommend for buying plastisols and
coatings. We have experience with every company
molding is a term used to define any process where
a mold or part is dipped into a polymer for molding
or coating a part. This process is used to make
everything from surgeons gloves to hand tool handles.
Foremost, plastisol is the most common dip molding
material. But latex, neoprene, urethane, and other
materials are also used.
is Molding & Coating Technologies, a part of
the Thermovation Engineering team: MCT combines
the heating, handling, and control experience of
Thermovation Engineering with a deep knowledge of
dip molding specifically to design and build the
most advanced dip molding machines in the world.