Optimized Twin Screw Barrel for Continuous Slurry Mixing
In lithium battery manufacturing, the consistency of slurry mixing
directly affects electrode uniformity and cell performance.
The twin screw extruder barrel plays a key role in maintaining this consistency. Designed for
continuous slurry processes, this barrel ensures uniform dispersion, temperature control, and chemical compatibility even under long production cycles.
Constructed with a 304 stainless steel outer shell and an alloy liner made from ZT615 nickel-chromium or WR13
high-chromium material, it delivers strong protection against corrosion and abrasion in
NMP-based mixing environments.
Superior Chemical and Wear Resistance
Lithium battery slurry contains highly corrosive and abrasive
components, such as NMP solvent and conductive additives like
carbon black and CNTs.
Conventional barrels often degrade quickly, leading to
contamination and inconsistent slurry viscosity.
The ZT615 liner offers excellent corrosion resistance against organic solvents and binders, while WR13 provides enhanced wear protection for abrasive material systems.
Both materials help maintain a stable internal surface, ensuring
extended operation and consistent product quality.
Precision Machining and Dimensional Stability
Each barrel is manufactured under strict machining tolerances of
±0.02 mm to ensure perfect alignment and uniform heat transfer.
The internal water channel design allows efficient cooling and prevents thermal fatigue, maintaining
process stability during high-speed continuous operation.
Improved Productivity and Reduced Maintenance
By combining chemical durability with high mechanical strength, the
barrel significantly reduces replacement frequency and unplanned
maintenance.
Users benefit from:
- Long-term operational stability
- Lower maintenance cost per production cycle
- Consistent slurry quality across multiple batches
Material Options
| Barrel Type | Outer Material | Liner Material | Resistance Type | Recommended Application |
|---|
| Type A | 304 Stainless Steel | ZT615 Ni-Cr Alloy | Corrosion Resistant | Cathode slurry with NMP solvent |
| Type B | 304 Stainless Steel | WR13 High-Cr Alloy | Wear Resistant | Anode slurry with carbon black or CNT |
User Benefits Summary
- High chemical and wear resistance for demanding slurry environments
- Excellent dimensional accuracy for stable twin screw operation
- Reduced contamination and extended barrel life
- Efficient temperature control through internal water channels
- Customizable design for different mixing equipment and process
conditions
FAQ
Q1: Why is corrosion resistance important in lithium battery slurry
mixing?
Because the slurry contains NMP solvent and active materials that
can chemically attack conventional steel surfaces,
corrosion-resistant alloys ensure purity and long service life.
Q2: What is the difference between ZT615 and WR13 liner materials?
ZT615 Ni-Cr alloy is optimized for corrosion protection in
solvent-rich environments, while WR13 High-Cr alloy provides
greater resistance to abrasion from conductive materials.
Q3: Can this barrel be customized for different twin screw extruder
models?
Yes. Barrel dimensions, water channel design, and liner composition
can be customized based on the user’s extrusion system and process
parameters.
Q4: How can users extend barrel service life in slurry production?
By maintaining proper cooling circulation, monitoring slurry
composition, and selecting the appropriate liner alloy based on
slurry abrasiveness and solvent type.
