CIM Process
CIM process is a process that uses injection molding techniques to create complex ceramic parts, involving mixing ceramic powder with a binder, injecting the mixture into a mold, removing the binder (debinding), and then sintering the resulting part to achieve its final form.
Here’s a more detailed breakdown of the CIM process:
CIM Process Feedstock Preparation
- Fine ceramic powders (like alumina, zirconia, or others) are mixed with a polymer binder to create a “feedstock”.
- This mixture is then granulated or pelletized for easier handling and injection.
CIM Process Injection Molding
- The feedstock is heated and injected into a custom-designed mold cavity under high pressure.
- This process creates a “green part” (a part made of powdered material compressed and held together by the binder) with the desired shape.
CIM Process Debinding
- The green part is then subjected to a debinding process, where the binder is removed.
- This can be done through thermal evaporation (heating the part) or solvent washing (using a solvent to dissolve the binder).
- This leaves behind a porous, “brown” part.
CIM Process Sintering
- The brown part is heated to a high temperature in a furnace, a process called sintering.
- During sintering, the ceramic particles fuse together, forming a dense, solid ceramic component.
Finishing (Optional)
Depending on the application, the final ceramic part may undergo additional finishing processes, such as polishing, grinding, or laser cutting.
With 20+ years of knowledge and experience, CIM has proven to be a reliable manufacturing method if you need volume production quantities of components in a superior material that can withstand physical, thermal, electrical and chemical challenges. It is an effective way producing complex precision parts with a high grade of repeatability and reproducibility.