Wherever fast, portable heat is the need

Applications/Processes

Master heat tools are being used for many applications and processes throughout industry. Click on any one of these applications for specific product information:

• Activate adhesives and potting compounds
• Bend and form plastics and plastic laminates
• Cure and set adhesives
• Defrost freezers and frozen coils
• Dry body filler
• Dry conformal coatings on circuit boards
• General heating and drying applications
• Melt solder off the backs of printed circuit boards so thru hole components can be removed
• PVC bending
• Preheat flux
• Remove dents in fiberglass
• Remove pin striping
• Remove plastic autobody panels
• Remove windshield caulking
• Shrink and terminate environmental splices
• Shrink and terminate heat-shrinkable insulated solder preforms
• Shrink heat-shrinkable anti-static film
• Shrink heat-shrinkable molded parts
• Shrink heavy gauge shrink packaging
• Shrink heavy wall and adhesive lined tubings
• Smooth vinyl tops
• Spot dry paint
• Stretch vinyls
• Vinyl repair

New applications and processes which require heat are discovered every day.

Convection Heat/Hot Air

Most Master heat tools use the convection principle to provide hot air for many different applications and processes.

Hot air is particularly well suited for use in a wide variety of applications and processes throughout industry.

The appropriate Master heat tool is selected depending on the airflow and temperature characteristics needed to do the job. Temperature is controlled by selecting a proper model or by using one of our variable temperature units. Air flow is determined by the unit selected, its outlet configuration and by the use of specially designed attachments if required.

How Master Heat Tools Work

Air is forced through (or over) an electric heating element. In the process, heat energy is transferred from the heating element to the air.

Most Master heat tools use a self-contained motor-driven fan to supply the air which is then passed over an electric heating element.

Facts About Heat

Applied heat technology is the basis of all Master Appliance products. Definitions of some of the basic principles of heat follow:

Heat is the form of kinetic energy which causes a rise in temperature in a body as it is absorbed or a reduction in temperature as it is lost to the environment.

Temperature differential is the driving force of heat energy. The greater the temperature differential between two objects, the greater the flow of heat energy from the higher-temperature object to the cooler object.

BTU's (British Thermal Units) or calories are the units used to measure heat energy. One BTU is equivalent to 252 calories.

Thermal conductivity is the property of a material related to its ability to transfer heat through itself. The higher the thermal conductivity of a material, the greater the heat transfer rate. In general, metals have higher thermal conductivities than insulators. Copper and aluminum have higher thermal conductivities than steel, while steel has a higher thermal conductivity than wood or plastics.

The heat transfer rate is the quantity of heat energy flowing per unit of time through an object. It can be measured in BTU's per minute or by calories per second flowing through a specified area of the object.

COMMON MODES OF HEAT TRANSFER

• Convection- employing a heated fluid such as air to convey heat from the source to the object being heated. Master Heat guns are an example of applied convection.
• Conduction- heat transfer within an object. Ultratorches, in the soldering mode, are an example of applied conduction.
• Radiation- heat transfer employing electromagnetic waves similar to light or radio waves. This method does not require the presence of solids, liquids or gases to transmit heat energy. The sun is the best example of radiant heat.