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Mold Technologies

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Putting Your Mark on Your Part

Have you ever looked at the bottom of a plastic container and noticed one or more symbols molded into the part? These markings are added at the time of molding with a metal insert placed in the cavity of the mold. When the resin solidifies it bears the mark of the specific insert added. Believe it or not these markings can be extremely important and very helpful for molders and consumers alike as they guide decisions through the life cycle of the plastic part. For the molder, the markings provide key information which can include when the part was made, helping to identify a specific manufacturing lot or batch and ensuring that a reliable quality system exists. For consumers, the markings can show how the finished good can be used and possibly re-purposed through recycling.

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Top Things to Consider When Assessing Ejector Pins for Breakage

Ejector pins are a critical component to the injection molding process. An ejector pin is driven into the rear of a mold cavity to force the finished piece out and is also often referred to as a knockout pin. Having pins you can count on can make the difference between manufacturing a product efficiently or creating future unwanted costs.

If you’re experiencing ejector pin breakage here are some things to consider when assessing your pins: