HES HS2510-N, User Manual

Page: 38 / 64

36
Hwang Sun Enterprise Co., Ltd.
36 Edition 2012/02
Concentric circles in
bead deposit.
1. The adhesive is too is too hot.
2. Adhesive viscosity is too low.
Adjust properly the
temperatures of all heating
zones.
Suggest to adjust the
operation temperature or
use same kind of adhesive
with higher CPS value.
Adhesive bouncing or
Splashing from the
substrate.
1. The adhesive is too hot.
2. Excessive pressure of gear
pump.
3. Adhesive viscosity is too low.
4. Nozzle orifice is too large for
application.
Adjust properly the
temperatures of all heating
zones.
Adjust the pressure of the
pressure regulator or the
inverter, to reduce the
motor speed.
Suggest to adjust the
operation temperature or
use same kind of adhesive
with higher CPS value.
Change the nozzle with
smaller orifice.
Waviness in bead
deposit
1. Ambient temperature in the
application area is below
freezing.
2. A draft or breeze is blowing
across the nozzle assembly or
guns.
3. The operation temperature of
nozzle assembly is too low.
4. Nozzle is too far from the
substrate.
Recommended the ambient
temperature is from 0
℃
~50
℃.
Cover the nozzle assembly
or guns with thermal
insulation material.
Increase the operation
temperature of nozzle
assembly.
Move nozzle to the
distance of 0.5
〞
(12.7mm)
from substrate.