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About Industrial Ovens
Industrial oven manufacturers design equipment that
removes solvents from products through drying, curing, baking, dehydrating
and aging. Industrial ovens are also used to reactivate adhesives, gel
and fuse materials together, heat-set, heat-shrink, preheat, sinter,
melt, heat-treat, laminate and thermal bond other materials. These processes
require heat and mass transfer, which can be accomplished through conduction,
convection or infrared/radiant heat from industrial ovens. Often, commercial
ovens are designed with a combination of these types of heat transfers,
as no single heating technology is perfect for every process. Industrial
oven manufacturers offer two possible configurations: batch industrial
ovens and continuous industrial ovens. Most commercial ovens fall under
the category of batch ovens, which process an individual product in a
single group. Continuous industrial ovens consist of automated conveyor
systems that move large quantities of products through the industrial
oven.
In conduction, heat is applied directly to one part of an object, exciting
the electrons. Molecular collisions, which travel along the object, heat
the object as they move. Conduction industrial ovens transfer heat from
a hot plate to the bottom of the product or material. There is the possibility
that non-uniform heating and mechanical stress may occur in this process.
In convection ovens, excited molecules reach a state of fluid motion
as gases or liquids are heated. The heated, less dense molecules move
upward, while the cooler, more compact molecules move downward. In a
convection oven, which may utilize forced air, the product is heated
from the top down. Premature, non-uniform drying may occur.
Infrared ovens use radiant heat, which heats the object itself, rather
than the air within the oven. Lamps emit medium and short wavelength
radiation. Infrared heat is the heat transfer method of choice in the
curing of metal, plastic and composite parts. It has since been used
to provide the heat, the cure, the bond and the catalyst for a wide variety
of industrial processes. Infrared heat is suitable for products like
web, fabric and products that require powder curing. Infrared ovens require
significantly less energy to heat up, and heat up much more quickly than
either convection ovens or conduction ovens, making infrared ovens more
cost efficient.
Industrial oven manufacturers cater to a wide variety of applications,
including coated paper industrial ovens, vinyl industrial ovens, textile
industrial ovens, industrial and coated fabric ovens, technical textile
industrial ovens, safety fabric industrial ovens, woven material industrial
ovens, knit material industrial ovens, carpet industrial ovens, building
material industrial ovens, wall-covering industrial ovens, tubing industrial
ovens, electronics industrial ovens, fuel cells industrial ovens, steel
coil industrial ovens and automotive industrial ovens. Infrared ovens
can be used for pre-drying, preheating, drying, post-heating, thermal
bonding, heat-setting, curing and more. Industries such as chemicals/petrochemical,
finishing, food processing, packaging/printing, pulp/paper/converting,
pharmaceuticals, plastics/rubber and textiles benefit from infrared ovens.
Commercial ovens are useful for heat treating, different types of curing,
stress relieving, plastic heating, core baking, vacuum thermal forming,
etc. To optimize drying and curing processes, choose the appropriate
energy source (e.g. electricity, gas, etc.), and it is important to remember
that precise processes can only be accomplished with precise temperature
control.
Featured
Articles
http://www.heat-pro.com/HP_01/Press%20Page.asp
http://www.pfonline.com/articles/020302.html
Types of Industrial Ovens
- are used for baking materials or food,
are made of inflammable materials and have smooth interior surfaces
to allow cleaning.
- process a product at one time in a single group.
- are small, sometimes portable, ovens usually placed on
tables or stands. Bench ovens are used during low volume process
heating applications.
- are used to dry, bake, heat, and cure various materials.
- provide consistent process heating through the fluid
circulation of gases. The heated gas warms the internal air, which
maintains the temperature inside the oven.
- contain a variety of accessories and are used in continuous
high volume process heating applications.
- are used to remove excess moisture from a product.
- utilize electromagnetic radiation to transmit heat
to the product. Infrared radiation is transferred directly
to the product
without heating the air inside of the enclosure.
- are either infrared or convection ovens in which
the powder coating on a product is melted and allowed to
flow for 2-10 minutes. Within the oven, the product is then exposed
to ultraviolet
light for just a few seconds to cure and harden the finish.
- heat parts to make them easier to assemble and are
utilized where pressure-sensitive adhesives perform more
efficiently at higher
temperatures and where pliability aids fit.
- are airtight enclosures in which the pressure level
remains lower than that of atmospheric pressure. Vacuum
ovens guard against
undesirable effects of heat processes such as oxidation
and contamination.
- are large enclosures used for the process heating of large objects, such as trucks or cars,
or large product quantities. Walk-in ovens often contain large doorways,
cabinet, shelves and racks for convenience.
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