High-precision Zirconia Ceramic Injection Molded Parts High Alumina Special-shaped Injection Molding Parts

Ceramic injection molding is a manufacturing process in which ceramic powder is uniformly mixed with a specific organic binder under heating to create a rheologically stable feedstock. This feedstock is then injected into the mold cavity of an injection molding machine to form a green part of the desired shape. Debinding and sintering are then performed to ultimately produce high-density, high-precision, complex ceramic parts.

Injection molding ceramic parts is an advanced near-net-shape technology that integrates plastic injection molding technology with high-performance ceramic materials. It is the preferred method for manufacturing small, complex, and precision ceramic parts. It can be understood as "plastic injection molding using ceramic powder as the raw material," but the subsequent processing is much more complex.

1. Extremely High Shape Complexity:
Parts with complex three-dimensional structures, tiny pores, fine threads, thin walls, and sharp corners can be molded in one go, which is impossible with traditional dry pressing or isostatic pressing.

2. Excellent Dimensional Accuracy and Surface Finish:

• Typical tolerances can reach ±0.3%-0.5%. After sintering, the product can directly achieve or approach final dimensions (near-net shape), reducing or even eliminating subsequent finishing and saving costs.
• Surface finish is high, reaching Ra 0.4 μm or higher.

3. High Material Performance and Consistency:
The sintered product has a high density (over 99% of theoretical density), a uniform structure, and excellent and consistent mechanical and electrical properties.

4. High Efficiency and Automation:
Once mold development is complete, high-volume, efficient, and automated production is possible, resulting in low unit costs.

Parts produced using CIM technology are widely used in applications requiring high performance, high precision, and complex shapes:

1. Electronics and Semiconductors:

• Chip package bases/covers: Alumina and aluminum nitride ceramics for heat dissipation and insulation.
• Fiber optic connector ceramic ferrules: Zirconia ceramics, requiring extremely high precision.
• Semiconductor equipment parts: such as insulators, nozzles, and grippers.

2. Medical and Dental:

• Ceramic dental implants and crowns and bridges (zirconia).
• Surgical tools, arthroscopic components, and micro bone screws.

3. Industrial and Consumer Products:

• Complex ceramic cutting blades.
• Watch cases and bezels (zirconia).
• Textile ceramic parts (such as complex wire guides).
• Ceramic cores for automotive sensors (such as oxygen sensors).

4. Military and Aerospace:

• Micro-turbine engine rotor blades and missile seeker components.