High-Quality China Sintered Powder Filters for Micro-Particle Removal | Reliable Suppliers and Factory Solutions
Product Description
Corrosion resistance covering PH2-12, temperature resistance 500 ℃, suitable for petrochemical, food processing and other scenes.
Corrosion resistance to aqua regia and seawater, temperature resistance to 600°C in dry state, preferred in pharmaceutical and seawater desalination fields.
High temperature resistance to 980 ℃, chlorine corrosion resistance, dedicated to high temperature catalytic reaction systems.
Porosity 35-45%, thermal conductivity of 380W/(m-K), suitable for explosion-proof environments.
Monel alloy (Ni-Cu), ferro-aluminum alloy, etc. to meet the needs of special working conditions.
How is our sintered powder filter structure?
- Tubular cartridge: Outer diameter Φ5-200mm (can be customized to Φ1000mm), length 1-15m welded molding, axial flow channel design to reduce pressure drop.
- Composite structure: Five-layer sintered mesh (protective layer + precision control layer + dispersion layer + double-layer reinforcement layer) to achieve compressive strength ≥ 8MPa.
What is the application of our sintered powder filter?
- PTA mother liquor recovery: 316L material filter element intercepts ≥0.5μm catalyst particles.
- Crude oil pre-filtration: Monel alloy is resistant to hydrogen sulfide corrosion.
- Aseptic air purification: Titanium filter element is FDA approved, with a surface roughness Ra≤0.8μm.
- Terminal filtration of pharmaceutical solution: 0.22μm precision PTFE cartridge realizes bacterial retention rate >99.99%.
- Ultrapure water preparation: gradient pore titanium cartridge removes ≥0.1μm particles.
- High-purity gas filtration: the nickel-based alloy cartridge is resistant to corrosion of electronic special gas.
- Beer clarification: five-layer sintered mesh to achieve turbidity <0.5EBC.
- Fruit juice filtration: 316L cartridge passes 3A sanitary certification.
How is our Sintered Powder filter Production Process?
- Add 5-10% volatile agent (e.g. paraffin) or molding agent (e.g. polymer binder), mix in the mixing equipment for 1-3 hours to achieve uniform dispersion and ensure the stability of the pore structure.
- Special process requirements: gradient cartridge needs to be layered with coarse particles (≤100 mesh), medium particles (200-300 mesh), fine particles (≥300 mesh) powder, which is stacked layer by layer to form 1-3mm raw embryo sheet through casting machine.
- Gradient structure manufacturing: 3D printing technology or casting method is used to realize the gradient change of porosity (e.g. 30% outer layer → 50% inner layer), which improves the dirt holding capacity by 30%.
- Drying treatment is required after molding, and the temperature is controlled at 80-120°C to remove volatile agents and prevent the billet from cracking.
- Key control points: oxygen content <50ppm (argon protection), temperature uniformity ± 5 ℃, cooling rate <5 ℃ / min.
- Special structural treatment: multi-layer composite cartridges need to be coiled and welded, with low-precision security cartridges (e.g. 0.5μm) embedded inside to form a double protection.
- Surface treatment: Electrochemical polishing to enhance corrosion resistance, or spray PTFE coating to enhance hydrophobicity.
- Performance testing: ISO 2941 permeability test, ASTM F838 bacterial retention verification, burst pressure ≥ 8MPa test.
What are the Advantages of our sintered Powder filter?
- Resistant to extreme environment: 316L stainless steel is resistant to 500℃ high temperature/PH2-12 corrosion, titanium alloy is resistant to aqua regia/seawater erosion (600℃ dry state).
- Excellent mechanical strength: compressive strength of 0.8-3MPa, nickel-based alloy burst pressure up to 8MPa, alternating load withstand > 10,000 cycles.
- Outstanding regeneration ability: ultrasonic cleaning efficiency>95%, high temperature burning regeneration>50 times, life expectancy is 3-5 times longer than traditional cartridges.
- Gradient pore design: the outer layer has 5μm precision to intercept large particles, the middle layer has 2μm control precision, and the inner layer has 0.22μm to realize terminal filtration, with a pressure drop of 0.08ΔP.
- Composite function integration: five-layer sintered mesh structure (protective layer + precision layer + dispersion layer + double-layer reinforcement layer) improves the dirt holding capacity to 3-5 times.
- Intelligent pore size adjustment: Memory alloy cartridge can realize ±5μm dynamic pore size adjustment to adapt to flow fluctuation.
- Raw material utilization rate＞98%, energy saving 40% than traditional casting process.
- Rapid prototyping technology shortens the production cycle by 50%, and 3D printing realizes single-piece customization of complex structures.
- Modular design supports online replacement, reducing maintenance costs by 60%.
Typical application scenarios
- PTA mother liquor recovery: 316L filter element intercepts ≥0.5μm catalyst and is resistant to 20MPa high pressure.
- Crude oil desulfurization: gradient nickel-based cartridge is resistant to H₂S corrosion, with a precision of 1μm.
- Aseptic air filtration: titanium cartridge passed FDA certification, surface roughness Ra≤0.8μm.
- Vaccine terminal filtration: 0.22μm precision PTFE composite cartridge with bacterial retention rate >99.99%.
- Semiconductor ultrapure water: gradient titanium cartridge removes ≥0.1μm particles, resistivity>18MΩ-cm.
- Aviation hydraulic system: multi-layer sintered mesh cartridge is resistant to -196℃ liquid nitrogen environment.