The comprehensive performance of Metal Injection Molding including the metal powder fluidity,bulk density,tap density,compressibility,formability and the dimension shrinkage rate on sintering process.
Besides,for some special applications,some physical or chemical properties are required on the raw metal powder,such as the catalytic performance,electrochemical performance,corrosion resistance performance,electromagnetic properties, internal friction coefficient,etc.
In general, the properties of metal powder including the physical performance,chemical performance and processing performance. The chemical performance refers to the metal content and the impurity content,while the physical performance refers to the average particels size and its distribution.
The raw material of Metal Injection Molding processing is the plastic binder and the metal powder,after do mixing work under an appropriate proportion,the mixture would be shreded to be the feedstock.
Then the feedstock would be injected into the mold,after the green part is shaped,then do debinding and sintering. After sintering, the manufacturer would some secondary processing on the part, such as resizing,drilling,tapping,grinding,heat treatment and surface treatment,etc.
The utilization rate of Metal Injection Molding process is much higher than other processes,the raw material utilization rate of MIM technology could reach 95%,while casting could reach only 90,cold Forming could reach only 85%,forging could reach only 80%, machining could reach only 50%.So Metal Injection Molding is very popular in modern society.
