Metal Injection Molding is an outcome of plastic molding technology, high polymer chemistry, powder metallurgy technology and metal materials, the green parts can be shaped by injecting the feed stock into the mold, then the parts with high density, high precision and 3D complex structure can be achieved by sintering process.So by Metal Injection Molding process,the ideas of design can be translated to physical part with a certain structure and function rapidly and accurately, and the mass production can be finished directly,so this technology is a new revolution on manufacturing industry .
The binder can bond the metal powder particles and make the mixture has rheological property and lubricity when heated in injection cylinder,it means it can make powder flow. As a result, the selection of the binder is the key to the whole Metal Injection Molding process.
The requirement of binder:
1. Less dosage,use the less binder to make the mixture possess a better rheological property.
2. In the process of removing,no chemical reaction would be appeared between the binder and the metal powder.
3. Remove easily, no any residual carbon is left.
