Vacuum Deaerator Tank for Ceramic Slurry

Core Technical Highlights

Critical Degassing for Defect-Free Ceramic Tape Casting

The Vacuum Deaerator Tank is an essential tool for the preparation of high-quality electronic ceramic slurries. In processes like LTCC (Low Temperature Co-fired Ceramic) and MLCC manufacturing, entrained air bubbles can lead to pinholes, cracks, and uneven thickness in the green tapes. Our vacuum system removes these micro-voids under a precise 0.09 Mpa environment, ensuring that the slurry is perfectly dense and homogeneous before it reaches the tape caster.

Simultaneous Mixing and De-airing for Optimal Homogeneity

Unlike standard static deaerators, our tank features a sophisticated dual-mixing blade system. With an adjustable speed range from 0 to 130 rpm, the blades keep ceramic powders, glass frits, and organic binders in a state of uniform suspension while vacuuming occurs. This prevents sedimentation and ensures that the chemical composition remains stable throughout the degassing cycle, which is vital for maintaining consistent dielectric properties in the final fired component.

Safe and Controlled Slurry Transfer

Designed with industrial safety in mind, the tank operates at a working pressure of less than 3 kg/cm² for material delivery. The integrated pressure gauge allows for real-time monitoring of internal conditions, ensuring a smooth and controlled transfer to downstream casting equipment. The entire unit is built on a heavy-duty base with rubber swivel casters, providing the mobility needed for flexible factory layouts while protecting cleanroom floors from damage.

Superior Material Integrity with 304 Stainless Steel

Contamination is the enemy of high-performance ceramics. To ensure the purity of your material, the entire deaerator tank is fabricated from 304 stainless steel. This non-reactive material prevents metallic contamination and withstands the abrasive nature of ceramic slurries. Whether you are conducting small-batch R&D with a 10L tank or scaling up to a 100L industrial volume, our vacuum tanks provide the reliability and cleanliness required for advanced electronic material production.

Technical Specifications

Industrial Applications

Frequently Asked Questions

Why is mixing required during the vacuuming process?

Mixing increases the surface area exposure of the slurry and prevents air from being "trapped" within high-viscosity layers. It also ensures the ceramic particles remain uniformly suspended while the bubbles migrate to the surface.

Is the 304 stainless steel compatible with all organic solvents?

304 stainless steel offers excellent resistance to most common solvents and binders used in LTCC/MLCC production. For extremely aggressive chemical environments, 316L stainless steel customization is available upon request.

How long does a typical de-airing cycle take?

The cycle time depends on the slurry viscosity and the initial volume of air. Generally, for a 10L batch, a stable 0.09 Mpa vacuum can effectively remove most bubbles within 15 to 45 minutes of active mixing and vacuuming.

Can this tank be used for pressurized material delivery?

Yes. The tank is designed to handle up to 3 kg/cm² of working pressure, allowing you to use compressed air or nitrogen to "push" the de-aired slurry directly into the reservoir of a tape casting machine.