• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
6
I N S T R U C T I O N M A N U A L • M O D E L H 5 2 0 / H 5 4 0
I N T R O D U C T I O N
The models H520 and H540 are portable 500 watt, hand held ultrasonic
welders used for plastics assembly. Both models consist of an ultrasonic
power supply and a hand gun. These units are designed specifically for
welding, staking, inserting and spot welding applications (refer to the
Applications section of this manual beginning on page 22 for more information
on these operations).
The model H520 is a 20 kHz power supply that comes with the CV52 hand
gun. The CV52 hand gun is supplied with an integral 1/2" (12.7mm) diameter
titanium front driver with a replaceable flat face tip. (Other standard or custom
tips are available.)
The model H540 is a 40 kHz power supply that comes with the CV54 hand
gun. The CV54 hand gun is supplied with a removable horn designed
specifically for each customer’s requirements.The higher frequency and lower
amplitude of the 40 kHz system makes it ideal for welding small assemblies
that require gentler action.
The power supplies of both models feature autotune circuitry.
O V E R V I E W O F U L T R A S O N I C P L A S T I C S
A S S E M B L Y
WHAT IS ULTRASONICS?
Ultrasonics refers to vibrational waves with a frequency above the human
audible range which is usually above 18,000 cycles per second (Hz).
PRINCIPLE OF ULTRASONIC ASSEMBLY
The basic principle of ultrasonic assembly involves conversion of high
frequency electrical energy to high frequency mechanical energy in the form
of reciprocating vertical motion which, when applied to a thermoplastic,
generates frictional heat at the plastic/plastic or plastic/metal interface. In
ultrasonic welding, this frictional heat melts the plastic, allowing the two
surfaces to fuse together; in ultrasonic staking or insertion, the controlled flow
of molten plastic is used to capture or lock another material in place (staking)
or encapsulate a metal insert (insertion).
ULTRASONIC HAND HELD WELDERS
“Sonics” ultrasonic hand held welders are generally composed of the following
major elements: a power supply, hand gun (converter), and horn (H540 only)
as detailed in the diagram on the next page. A review of this diagram will help
you understand the basic elements involved in the assembly process and
their relation to each other.
To Next Page
Loading...