Metal Injection Molding technology is developed by Ceramic Injection Molding technology,it is a modern powder metallurgy near net forming technology.The main procedure of Metal Injection Molding technology as following: Mixing the metal powder and binder-making powder particle-injection shaping- debinding- sintering- post processing-final products.Metal Injection Molding technology is very suitable to finish the massive production for the powder metallurgy components with high performance,complex shape and micro size,such as the watches components.
In recent decades,MIM technology is developed rapidly,so many kinds of material can be used on MIM,such as: Fe-Ni alloy,stainless steel,tool steel,high percentage alloy,hard alloy,titanium alloy,Nickle-based super alloy,intermetallic compound,aluminium oxide,zirconium oxide,etc.
Metal Injection Molding technology demands the particle size is below micron size level and the shape is spherical.What’s more,the apparent density,tap density,the ratio of length and diameter,angle of gradient,particle size distribution,all of them would be required to a certain extent.
At present,the main produce method of Metal Injection Molding powder as following: Water atomization,gas atomization and carbonyl method.The commonly used stainless steel powder model as following: 304,316,304L,316L, 317L,410L,420,430L,434L,440A,440C,17-4PH,etc.
