Thin meat tube molded product

basic information

Among medical plastic products, there is a demand for real-time PCR tubes to have a body thickness that is as thin as possible. Since real-time PCR tubes undergo repeated heating and cooling, they must have good thermal conductivity. However, when the thickness is reduced, even a slight misalignment between the core and cavity of the mold can result in significant uneven wall thickness in the product. For example, if the product wall thickness of the tube is 0.4 mm (thin wall), a misalignment of 0.05 mm between the cavity and core would result in one side being 0.45 mm thick and the other side being 0.35 mm thick, leading to a 0.1 mm deviation. A 0.05 mm misalignment translates to a 25% deviation in a 0.4 mm thickness. Therefore, it is necessary to devise a mechanism for aligning the cavity and core during the mold design phase. Additionally, when optimizing plastic molding conditions, it is important to ensure that uneven wall thickness does not occur.

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Applications/Examples of results

Among medical plastic products, there is a demand for real-time PCR tubes to have the body part as thin as possible. Since real-time PCR tubes undergo repeated heating and cooling, they must have good thermal conductivity. However, when the wall thickness is reduced, even a slight misalignment between the mold core and cavity can result in significant uneven wall thickness in the product. For example, if the product wall thickness of the tube is 0.4 mm (thin wall), and there is a core misalignment of 0.05 mm, the thick side will be 0.45 mm and the thin side will be 0.35 mm, resulting in a 0.1 mm discrepancy. A 0.05 mm misalignment translates to a 25% discrepancy in a 0.4 mm wall thickness. Therefore, at the design stage of the mold, it is necessary to devise a mechanism for aligning the cavity and core. Additionally, when optimizing plastic molding conditions, it is important to ensure that uneven wall thickness does not occur.