MIM injection molding is currently a high cost-effective production molding technology for precision and complex parts. It not only has high production efficiency and good production quality, but also has lower production costs for mass production compared to traditional processing and molding technologies such as casting. Therefore, it has obvious advantages over traditional techniques like casting, with more cost-effectiveness. MIM injection molding differs from casting in terms of materials, molding methods, temperature, etc. In this article, we will explain why MIM injection molding is better than die casting.
Compared with traditional metal powder injection molding techniques, MIM has high precision, uniform structure, excellent performance, and low production costs. Its products are widely used in various industrial fields such as electronic information engineering, biomedical instruments, office equipment, machinery, hardware, sports equipment, clock and watch industry, weapons, and aerospace. Therefore, the international community generally believes that the development of this technology will lead to a revolution in parts forming and processing technology, and is considered as "today's hottest parts forming technology" and "the forming technology of the 21st century". MIM injection molding technology uses micron-level fine powder, which can not only accelerate sintering shrinkage, help to improve the material's mechanical performance, and prolong the material's fatigue life, but also improve its wear resistance, stress corrosion resistance and magnetic properties.
MIM injection molding has a higher temperature
High-temperature processing, solving iron-based and copper-based sintered alloys.
MIM injection molding is more corrosion-resistant
Copper-based sintered alloys and sintered stainless steels can meet the powder metallurgy and die-casting requirements, and substituting iron-based MIM injection molding products with zinc materials for using conditions with temperatures not exceeding 65°C and requiring medium strength.
MIM injection molding has higher tensile strength
The tensile strength of certain iron-based MIM sintered alloys is more than three times that of die-casting alloys.
MIM injection molding has high wear resistance
High wear resistance and high lubricity can be solved by lubricated iron-based and copper-based sintered alloys.
MIM injection molding technology is a new powder metallurgy near-net forming technology formed by introducing modern plastic injection molding technology into powder metallurgy. Its basic process is: first evenly mix solid powder with organic binder, after granulation, inject it into the mold cavity for solidification forming with an injection molding machine in the heated and plasticized state, then remove the binder in the formed blank by chemical or thermal decomposition, and finally obtain the final product through sintering densification.