Glossary
10-1
Part 237478_03
E 2012 Nordson Corporation
Section 10
Glossary
Any material that can be used to adhere or “stick” one surface to another.
Fine threads of adhesive caused by incomplete transfer of the adhesive
mass from applicator to substrate, followed by elongation of the connecting
bridges. May be caused by improper nozzle shutoff with a high viscosity
adhesive.
That part of the hot melt system that is used to heat adhesive to its required
application temperature and pump it to the hose(s) and gun(s). It consists of
a tank or reservoir, pump, filter, distribution manifold and temperature
controlled heating system.
An automatically actuated valve which is opened by fluid flow in one direction
and closed by flow in the opposite direction.
The width of an adhesive bead which has been deposited on a substrate.
The measurement is taken before the bead has been flattened by adhering it
to another surface.
See Heater Cartridge.
A non‐replaceable heating element specifically shaped to provide a uniform
thermal profile in the heated object.
The degradation of a fluid that occurs as a result of time and exposure to
atmospheric air and/or heat.
An electronic device that acts to shut down a powered AC circuit when
current draw (amps) exceeds some preselected value or when certain fault
conditions exist.
A temperature control device that closes, completing an electronic circuit
upon reaching a specific temperature.
The tube that connects the outlet port of a pump to the distribution manifold
of a hot melt applicator.
Adhesive
Angel Hair
Applicator
Ball Check Valve
Bead Thickness
Cartridge Heater
Cast‐in Resistive Heating
Element
Charring in Tank
Circuit Breaker
Close‐on‐rise Thermostat
Crossover Tube
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