What You Have to Know The MIM Process

What Is Harber MIM Process?

The Full Name Of MIM Is Metal Injection Molding. It Is A Molding Method, Which Injects The Metal Powder And Plasticizing Mixture Of Binder Into The Mold.

Firstly, We Mix The Metal Powder With Plastic Binder. Then, Granulate The Mixture And Inject It Into The Mold. The Mixture Get The Feature Of Polymer, Which Are Viscidity And Flow. It Is Helpful For Molding, Mold Filling And The Homogeneity Of Powder Packing. Then, Sinter The Defatted Blank. Some Of The Sintering Products Need Densifying Treatment, Heat Treatment And Machining Treatment. Sintering Products Not Only Have The Complex Shape And High Precision As The Products Made By Plastic Injection Molding, But Also Have The Physical, Chemical And Mechanical Property As Forge Piece.

This Technology Is Suitable For Mass Volume Production To Make Small Size, Precise, Complicated 3D-Shaped Metal Parts Which Also Require Special Performance.

Injection Machine Workinig Principle

The working principle of injection machine is similar to that of the syringe used for plastic. It is a process of injecting the plasticized melt state (i.e. viscous flow state) into the closed cavity with the help of the screw (or plunger) to obtain the product after solidification and shaping.

Injection molding is a cycle process, each cycle mainly includes: quantitative feeding - melt plasticization - pressure injection - filling cooling - opening parts. After removing the plastic parts, the mould is closed again for the next cycle.

MIM material includes metal powder and binders. Simply, we mix the two materials according to a proper rate, in a proper order, under high temperature and shear forces, so as to get a well-distributed structure combined material, then, pelleted by the granulator. Because of the binders, the material after pelleted have good fluidity, and can be fully filled into the molds. After forming, degreasing the binders from the blanks and sinter them, so to have the final products.

Harber MIM focuses on R&D and manufacturing of simple or complex metallic parts, MIM solution services and associated MIM injection molds. Being a professional player in PIM & MIM (powder & metal injection molding) technology in China, we have managed to develop our skills and get stronger all the time. Now we can assure to maintain high and stable quality for our PIM & MIM products to meet requirements of our clients worldwide. 

Harber MIM has a 5000 squaremeters first-class MIM workshop now after deep ploughing many years in the industry. Our 100+ trained & energetic employees are integrated each MIM process like: MIM design, mold design, tool making, debinding, sintering, and surface finishing into final MIM parts inspection and assemble operations. 

To speed up the products launch,Harber MIM built the MIM molding tools indoor.We are equipped with advanced facilities imported from Germany, Japan and Switzerland.We can guaranttee the precision of molds and assure tolearance and high efficiency of manufacturing with short lead time.

Some of our products have been used for tools, hardwares, electronic appliances, locks, toys, automobile parts, fasteners, spinning parts and so on.

Harber MIM has showed capabilities in:

 Advanced fabrication facilities & quality inspection system 

Quality control system

Rich experiences in product development and manufacturing process

Complete network of sales and service