Dukane SVB031, Руководство пользователя

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Spin Welder User’s Manual Section 7 – Operational Setup
Page 49
Page 48
Dukane Manual Part Number 403-547-03 Dukane Manual Part Number 403-547-03
NOTE
Refer back to
Section 5 – Theory of
Operation for further discussion of the
terms listed here.
Terminology
Pre–Spin
There are two possible methods of starting the spin
welding process. The first is to spin the motor up
to the desired RPM, then bring the upper part into
contact with the lower part in the fixture and apply
pressure. This is called pre–spin and is the most
common spin welding process.
Pre–Load
The second method is to first bring the two parts
into contact by applying pressure. This also seats the
parts prior to welding. The motor is then brought up
to speed. This method is called pre–load.
Weld Time
The time during which the upper part is being ro-
tated to heat the thermoplastic interfaces and form
the weld joint is called the weld time. The minimum
programmable weld time is 0.01 seconds. The maxi-
mum programmable weld time is 9.99 seconds. A
typical value might be 0.5 second.
Hold Time
After the weld time is completed, the parts must
be held together under pressure to allow the weld
joint to solidify. This is called the hold time. The
minimum and maximum programmable hold time is
0.01 and 9.99 seconds respectively. A typical values
range from 1.0 to 3.0 seconds.
Weld by Time
The weld cycle is determined only by the time
programmed into the controller. The timer starts
0.50 inches above the trigger point and stops the
motor when the timer reaches the programmed
time limit.