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ABS + PA (ABS + Nylon 6 Alloy)

As Known As

  • Stapron N

Typical Machine Settings: Subject To Polymer Grade

Nozzle

Front

Centre

Rear

Barrel Temperature

245 - 260oC

245 - 255oC

225 - 235oC

225 - 235oC

Melt Temperature

260 - 270oC

Must be measured with a pyrometer by taking an airshot through the injection machine nozzle.

Hot Runner Temperature

260 - 270oC

Mould Temperature

65 - 85oC

Run at upper end of range for best surface finish.

Injection Rate

Fast

Specific Injection Pressure

700 - 1400 Bar (10,000 - 20,000psi)

Screw Back Pressure

10 Bar (150psi)

Screw Speed

50 - 150 rpm

Processing Features

Structure

Crystalline

Specific Gravity

1.10

Viscosity

Medium

Shear Rate Susceptibility

Medium

Average gates can be used

Temperature Window

Medium

Needs fairly accurate & stable control

Residence Time

Medium

Aim for short residence time

Start-Up Precedure
  • Ensure all heaters are thoroughly baked dry - do not rely on brief ‘soft start’ systems to do this.
  • Fast Heat controllers automatically and safely bakeout wet heaters - ask for details.
  • Turn on water lines to stabilise tool and manifold temperatures.
  • Turn on manifold control zone(s) and allow to warm up until measured value is within 10oC of setpoint.
  • Now turn on tip zones and allow to settle at setpoint for 5 - 10 minutes before starting production.
  • Take an airshot from the machine barrel and check that the melt temperature is correct.
  • Start moulding parts on a semi-automatic cycle until suitable machine settings are established.
  • Avoid lengthy delays between cycles during this setting procedure.
  • Switch to automatic cycle when parts are being produced, and fine tune the machine settings

Shut-Down Precedure

The machine and mould may be shut-down normally, without cleaning the ABS + PA 6 from either the barrel or the hot runner.