Overview

Ceramic Injection Molding (CIM) is an advanced manufacturing process that combines ceramic powder technology with injection molding to produce high-performance ceramic parts with complex geometries. Yujiaxin Tech's CIM capability utilizes precision tooling and controlled debinding and sintering processes to achieve tolerances of ±0.02 mm to ±0.05 mm with excellent surface finishes. We process a range of advanced ceramic materials including alumina (Al₂O₃), zirconia (ZrO₂), silicon nitride (Si₃N₄), and silicon carbide (SiC), each offering distinct properties for demanding applications. The CIM process enables the production of ceramic parts with thin walls down to 0.5 mm and complex internal features that would be impossible with traditional ceramic forming methods. With maximum sintering temperatures reaching 1,600°C, our CIM parts achieve densities of 96-99.5% of theoretical, delivering exceptional mechanical properties, wear resistance, and thermal stability for applications in electronics, medical implants, sensors, and industrial wear components.

Key Advantages

<ul><li>Complex shape capability — produce geometries impossible with traditional ceramic pressing</li><li>High dimensional accuracy — ±0.02 mm to ±0.05 mm tolerances after sintering</li><li>Excellent material properties — high density, wear resistance, and thermal stability</li><li>Wide ceramic selection — alumina, zirconia, silicon nitride, silicon carbide</li><li>Thin wall capability — walls as thin as 0.5 mm for lightweight designs</li><li>High-volume efficiency — injection molding cycle times of 30-60 seconds</li></ul>

Applications

<ul><li>Medical implants — ceramic hip joints, dental implants, bone screws</li><li>Electronics — ceramic substrates, insulators, sensor housings, connectors</li><li>Industrial — wear-resistant nozzles, seals, valve components, pump parts</li><li>Aerospace — thermal barrier components, insulating washers, sensor protection</li><li>Automotive — oxygen sensor components, glow plugs, fuel injector parts</li></ul>

Technical Specifications

Parameter	Specification
Tolerance (General)	±0.02 mm - ±0.05 mm
Surface Finish (Ra)	0.4 - 1.6 μm
Max Part Weight	Up to 50 g
Min Wall Thickness	0.5 mm
Density	96 - 99.5% theoretical
Production Volume	1,000 - 50,000+ pieces
Tooling Lead Time	4 - 8 weeks
Max Sintering Temp	1,600°C

Frequently Asked Questions

What ceramic materials are available for CIM?

We offer alumina (Al₂O₃), zirconia (ZrO₂), silicon nitride (Si₃N₄), silicon carbide (SiC), and other advanced ceramic materials. Each material offers distinct properties for different applications.

What tolerances can CIM achieve?

CIM typically achieves tolerances of ±0.02 mm to ±0.05 mm, depending on part geometry and material. After sintering, some parts may require secondary finishing operations for tighter tolerances.

Is CIM suitable for medical implant applications?

Yes, CIM is widely used for medical implants and surgical instruments. Ceramic materials offer excellent biocompatibility, wear resistance, and corrosion resistance, making them ideal for orthopedic and dental applications.

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