Glossary
10-2
Part 237478_03
E 2012 Nordson Corporation
The time between when the gun is signaled to stop and when the adhesive
flow actually does stop.
A pump that delivers material on both the upstroke and the downstroke.
A manufacturer's statement of the maximum level of some external condition,
such as water or dust level, that the enclosure is capable of withstanding.
A speed‐sensing device which outputs a frequency of pulses proportional to
the measured line speed.
A spring‐loaded triggering device for dispensing or depositing material.
There are two basic types of guns, the manual gun which is actuated by hand
and the automatic gun which is actuated by process controls.
That part of a filter assembly external to the unit to which the filtering element
is attached, or contained within the unit. It is also used for access or
cleaning.
The amount of material flowing through the system per unit of time. The
amount may be expressed in gravimetric (weight) or volumetric terms.
Examples: grams/minute, ml/min, lb/hour, gallons/hour.
A valve typically used to pressurize one side of a double acting cylinder while
opening a exhaust path for the opposite side.
See Key‐to‐line.
A cross‐linked, insoluble material which can form in a hot melt applicator
under extended thermal stress.
A wire that connects all AC powered devices to earth ground.
The device that dispenses a material (adhesive) onto a substrate or product.
A replaceable resistive heating element, tubular in shape, designed to fit in a
machined hole in the object to be heated.
The volume that is heated and thermally controlled by a single control device.
A container allowing non‐melted adhesive to be supplied on a continuous
basis to a melt zone.
Drop‐out Time
Dual‐acting Piston Pump
Enclosure Rating
Encoder
Extrusion Gun
Filter Bung
Flow Rate
Four‐way Air Valve
Gear‐to‐line
Gel
Ground Wire
Gun
Heater Cartridge
Heating Bong
Hopper
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