Mold-Masters Fusion G2, User Manual

Page: 169 / 192

12.3 Pre-Molding Precautions
Prior to commencing production, ensure that the following conditions have
been met. This will greatly reduce any future need to troubleshoot defective
production.
12.3.1 History
• Review any documentation associated with your batch job regarding
the recipe using the mold, molding machine, thermoplastic resin,
environmental setting, etc.
• Review comments, notes, logbooks, blogs and any other resource
material that pertains to the batch job.
• Verify that all settings such as time, temperature, pressure, material, etc.
are correct.
12.3.2 Material
• Ensure that the thermoplastic resin to be used is the right grade, and has
been stored and / or prepared / dried, etc, according to manufacturer’s
specifications.
• Verify that the pigment / dye to be used meets manufacturer’s
specifications, and is compatible with the resin/molding machine / mold.
Verify the correct recycle ratio and adjust settings accordingly.
12.3.3 Hardware
• Make sure the mold has been properly stored, and is dry, clean, free of
rust, dirt, moisture, residual resin, pigment and any protective coating.
• Check that the temperature controller meets requirements and is fully
tested and operational.
• The injection molding machine has been properly maintained, cleaned,
lubricated; tolerances and dimensions verified.
• Make sure that the nozzles, cylinders, valves, gates, and any other
variable that is appropriate for the batch job has been chosen.
12.3.4 Settings
Ensure that all batch job parameters are correct:
• temperatures
• pressures
• injection speed
• back pressure
12-3
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FSG2 User Manual