What is metal injection molding

Metal injection molding is widely used in orthodontic bracket parts, surgical instruments, implantable MIM parts, knee implant parts, etc.

MIM has higher requirements for raw material powder. The choice of powder should be conducive to mixing, injection molding, debinding and sintering, which are often contradictory. The research on MIM raw material powder includes: powder shape, particle size and particle size composition, specific surface Etc., Table 1 lists the properties of the raw material powder most suitable for MIM.
Due to the very fine requirements of MIM raw material powder, the price of MIM raw material powder is generally higher, and some even reach 10 times the price of traditional PM powder. This is a key factor limiting the wide application of MIM technology. The main method of producing MIM raw material powder is carbonyl. Method, ultra-high pressure water atomization method, high pressure gas atomization method, etc.

The application of MIM injection molding technology in digital electronics is mostly mobile phones and laptops, such as mobile phone metal trays, volume buttons, mobile phone interfaces, camera frames, hinges, precision parts for lifting cameras, and precision dual-camera and triple-camera cameras. Parts, laptop shafts, gears, etc.

MIM parts used in automobiles are generally iron-based materials, such as engine rocker arms, shift levers, turbocharger blades, sensors, etc.