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About:
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In metal injection moulding, a powder made from the desired mix of metals is created using atomisation technology, and this powder is made into a pellet-like form called feedstock, which includes a plastic binding agent to make the substance easier to mould during the injection process. Once the mixture is injected, the binder is removed using solvent, thermal furnaces, a catalytic process, or a combination of methods, leaving only the metal and resulting in close to 100% density.
5. Liquid silicone injection moulding
While surface-borne infection is a general concern in hospitals, some medical devices have a greater need to remain hygienic than others, like tubes and respiratory masks. Liquid silicone injection moulding is used for devices like these because of the chemical resistance of the rubber-like substance produced using this method, as well as the use of a clean production room so that no ambient air makes contact with the mould and lets dust and moisture into the mixture as it sets.
Another benefit is that silicone is biologically inert, meaning it doesn't react with biological tissue and can be implanted safely in the body. The basic raw material for silicone rubber is sand, or silicon dioxide, which is processed into pure silicon and reacted with methyl chloride, after which a range of processing steps are used depending on the properties desired for the silicone.
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