Reaction Injection Molding (RIM) is a type of low-pressure injection molding that involves the mixing of two liquid components, which then react and solidify into a solid polymer. The reaction typically takes place in the mold cavity, where the mixture is injected, and the chemical reaction is allowed to progress until the material is fully solidified.
RIM is commonly used for the production of large, complex-shaped parts with a smooth surface finish, and is well-suited for applications in various industries, including automotive, construction, medical, and consumer goods. The process offers several advantages over traditional injection molding, including faster cycle times, lower material costs, and the ability to produce parts with low- to zero-draft angles. Additionally, lightweight parts can withstand harsh environmental conditions.
What are the advantages of RIM?
1. Complex geometries: RIM can produce parts with complex shapes, including undercuts and deep draws, that would be difficult to achieve using other manufacturing methods.
2. Faster cycle times: RIM has a faster cycle time than other processes, as the reaction time is much shorter than the curing time in traditional polymer processing techniques.
3. Lower material costs: RIM typically uses less material than other processes, as the reaction process allows for a lower material thickness, which results in lower material costs.
4. Improved surface finish: RIM produces parts with a smooth surface finish, without the need for additional post-processing steps.
5. Low- to zero-draft angles: RIM allows for the creation of parts with low- to zero-draft angles, which is useful in applications where it is important to maintain a consistent wall thickness.
6. Environmental resistance: RIM produces parts that are resistant to environmental factors, such as temperature fluctuations, UV light, and moisture, which makes them ideal for outdoor applications.
Products we made
