How do you demould the plastic test, do you know? -Huaqiang Electronic Network

Plastic test molds are typically designed as a single unit. However, the bottom of the mold usually has a small hole. The main challenge is how to completely remove the test mold without causing damage. Here are some practical steps to help you with this process: First, it's essential to apply a thin layer of release oil inside the mold before the injection molding process. This helps ensure that the molded part can be easily removed afterward. Once the oil has been applied, place a small piece of scrap paper over the small hole at the bottom of the mold. This prevents the hole from being accidentally blocked by the molten material during the molding process. Finally, connecting an air pump to the test mold is the most effective way to extract it fully. It’s highly recommended to purchase the air pump together with the test mold, as many suppliers offer this as a package deal. If you have multiple test molds, the seller might even provide the air pump for free. If you don’t have an air pump, you can still remove the mold manually. Use a steel rod or similar tool to push it out from the bottom hole. Alternatively, gently tap the edges of the mold against a flat surface or platform to loosen it. Once it starts to come out, carefully flip the mold over and avoid forcing it too hard, as this could damage the test mold or the part itself. Taking your time and using the right tools will make the process much smoother and prevent unnecessary wear and tear.

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