Metal injection molding MIM toy gun product accessories

Product Details

The working principle of metal injection molding is as follows, which should give you an idea of ​​why it is so expensive:

First, the ultrafine metal powder is mixed with a wax or plastic binder. What is disturbing is that they call the resulting mixture "raw material." Then the raw materials can be loaded into the injection molding machine and then sprinkled into the mold, although the amount of sprinkling is about 100 grams (3.5 ounces) each time, which means that if you want to mold a larger workpiece, you need to fire from each Place multiple injections into the mold to get complete coverage.

Then what comes out of the mold is called a "green body" and contains both metal and binder. Next, they basically smoked off the adhesive by applying chemicals or heat to vaporize or dissipate the material. After removing all the adhesive, the resulting product is called the "brown" part, which now looks a bit like Swiss cheese; there are tiny holes in the original place of the adhesive.

生产方法：金属注射成型MIM

Production method: metal injection molding MIM

Obviously, this porosity makes the part brittle and is not ready yet. Then they threw the things into the furnace and sintered the metal together. (It's like melting a piece of Swiss cheese to melt the material into the hole. Except for metal injection molding, the part retains its outer shape.) Now you have your finished part, which is basically manufactured using more traditional techniques The metal parts are as strong.

Production method: metal injection molding MIM生产方法：金属注射成型MIM