Material Preparation: TPU pellets or granules are typically loaded into a hopper or feeding system of the molding machine.
Heating: The TPU material is heated to a specific temperature, usually above its melting point, to make it molten and moldable.
Molding: The molten TPU material is injected into a mold or tooling that defines the desired shape and size of the final product. The mold is closed, and pressure may be applied to ensure proper filling and compaction of the material.
Cooling: After the molten TPU material has been injected into the mold, it is cooled to solidify and set the foam. Cooling can be achieved through the circulation of chilled water or other cooling methods.