Understanding of feeding:
In the MIM process, the only function of plastics is that they act as a carrier to carry gold through injection molding pressure when heated
The powder is brought into the mold and cooled to form the parts we want.
Usually we define plastic as the binder in the feed, its volume fraction accounts for about 40%, so the binder in the end
What are the specific ingredients?
A, wetting agent
-- the metal powder surface has a certain degree of humidity, which can reduce the tension between the binder and the powder contact surface
B. A high polymer component
-- first removed when degreasing, forming a network of voids so that other binders are more easily broken down
C, high polymer
-- used to maintain the shape of the part after the grease is removed and not removed until the temperature rises to the sintering temperature
D) other materials that allow the main binder to be mixed with the skeleton polymer