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Thermoplastic injection molding is a manufacturing process in which melted plastic is injected into a mold and then cooled until it solidifies into a specific shape. The process can be used to produce a wide range of parts and products, including automotive parts, medical devices, and consumer goods. One of the key advantages of injection molding is that it allows manufacturers to produce complex shapes with high precision and repeatability. It is also a relatively fast and efficient process, making it well suited for mass production.
Metal injection molding (MIM) is a manufacturing process in which a mixture of metal powder and a binder material is injected into a mold and then heated and cooled until it solidifies into a desired shape. The binder material is then removed through a process called sintering, which leaves behind a solid metal part. MIM can be used to produce small, complex parts with tight tolerances and a high degree of precision. It is well suited for mass production and can be used to produce parts with a variety of metal alloys, including stainless steel, titanium, and cobalt-chrome. MIM is often used as an alternative to traditional manufacturing processes such as machining, casting, and forging.
Rotational molding, also known as rotomolding or rotocasting, is used to produce hollow, one-piece parts. It involves heating a powder or liquid resin and then introducing it into a mold, which is mounted on a machine that rotates the mold around two perpendicular axes. As the mold rotates, the resin is evenly distributed and coats the inside surface of the mold. The mold is then heated to a high temperature, which causes the resin to melt and flow, filling the entire volume of the mold. The mold is then cooled, solidifying the resin into the final part. Rotational molding is well suited for producing large, complex shapes with a uniform wall thickness and no seams or welds. It is often used to make products such as tanks, toys, and recreational equipment.
Liquid injection molding (LIM) takes liquid silicone rubber (LSR) is injected into a mold and then cured, or vulcanized, to form a final part. LSR is a two-component material that consists of a base and a curing agent, which are mixed together to form a viscous liquid. The liquid is then injected into a mold using a special injection molding machine, where it is heated and pressurized to fill the entire volume of the mold. The mold is then cooled, causing the LSR to solidify and take the shape of the mold cavity. LIM is well suited for producing parts with high precision and complex shapes, and it can be used to make a wide range of products, including medical devices, automotive parts, and consumer goods. LIM is often preferred over other silicone molding processes because it allows manufacturers to produce parts with a consistent quality and a high degree of repeatability.