Before (改善前)

In the case of plastic injection molded products for medical use such as reagent cartridges, secondary processing includes welding with heat or ultrasonic waves, and attaching an adhesive seal. However, if there are protrusions at the welded part, or there are steps due to the ejector pin (used when releasing the product from the mold) or the mold splitting, there are some cases that secondary processing such as  welding to the reagent cartridge or sticking of an adhesive seal, etc. cannot be performed , or the weldability and adhesiveness may decrease.

V

After (改善後)

For medical plastic injection molded products such as reagent cartridges that require welding or sticking of an adhesive seal, by designing with projections and steps do not occur where welding and sealing are applied, secondary processing can be smooth. In addition, it is possible to stabilize welding by melting at the time of welding by making the height of the welding point one step higher or providing a place that is easily melted at the welding point, making it easier to perform secondary processing, It improves workability and shortens production lead time.

POINT(要約)

In the case of medical plastic injection molded products such as reagent cartridges that require welding in secondary processing, a more stable secondary is possible by providing a positioning mechanism in the product itself so that displacement does not occur during welding. Since the secondary processing can be performed stably, the yield is good and the cost can be reduced in total. In this way, the overall cost can be reduced by considering the design of not only primary processing but also secondary processing.