Before the mold on a plastic injection molding machine is pulled apart, a(n) ___________________ period must occur to allow the plastic to cool and harden.

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Prepare for the OCC SACA Sensor Logic Systems 1 (C-205) Exam. Study with detailed questions and insightful explanations. Get ready for your certification!

Multiple Choice

Before the mold on a plastic injection molding machine is pulled apart, a(n) ___________________ period must occur to allow the plastic to cool and harden.

Dwell time is the pause in the molding cycle when the mold stays closed after the plastic is injected, allowing the material to cool and harden before the mold is opened. This brief waiting period lets the molten polymer solidify under pressure against the mold surfaces, so the part dimensions stabilize and you avoid distortion, sink marks, or ejection damage. If you open the mold too soon, the part may still be soft and deform, leading to poor quality.

Cooling describes the overall heat loss process, not a specific pause. Hold refers to the packing pressure phase during or just after fill, not the cooling interval before ejection. Solidify describes the state of the part rather than the timed step in the cycle.

Before the mold on a plastic injection molding machine is pulled apart, a(n) ___________________ period must occur to allow the plastic to cool and harden.

Prepare for the OCC SACA Sensor Logic Systems 1 (C-205) Exam. Study with detailed questions and insightful explanations. Get ready for your certification!

Before the mold on a plastic injection molding machine is pulled apart, a(n) ___________________ period must occur to allow the plastic to cool and harden.

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