IV. Pre-Start Operating Procedures - Plastics …

Lesson 1 NotesPage 4 NOTE: The specific hook-up for every mold is different. For each mold,the connections and their proper sequence must be made andchecked only by qualified Pre-Start Operating ProceduresA. Setting-Up the Mold for Production1. Before the mold is opened for the first time, remove any mold partingline Open the mold and check the mechanical action of the:a. Core pullsb. Side action camsc. Ejection system3. Be sure the nozzle radius and the sprue bushing radius Move the injection unit nozzle against the mold sprue bushing to checkthe seating Injection Mold Protection ProceduresA. Clamp Tonnage Setting1. Do not use excessive clamp Excessive clamp force increases wear on both the machine andthe If the mold clamp area is small, you can indent or hob the platensand even deform the The clamp tonnage setting depends on:a.

Lesson 1 Notes Page 4 NOTE: The specific hook-up for every mold is different. For each mold, the connections and their proper sequence must be made and

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