Industrial Filtration with Sintered Metal Filter Discs
Material
- Stainless steel: 304, 316L (corrosion resistance, high temperature resistance)
- Nickel-based alloys: Hastelloy, Monel (resistant to strong acids and alkalis)
- Titanium and titanium alloys: lightweight, seawater corrosion resistant
- Copper, bronze: good thermal conductivity, for special industrial scenarios
Structural Characteristics
- Uniform pore size: pore size range 0.5~200 micron, customized gradient pore structure is available
- Three-dimensional mesh: high porosity (30%~60%) to ensure high flow rate and low pressure loss.
- One-piece molding: no welding or bonding, avoiding the risk of leakage.
Product Parameters
| Parameter Categories | Typical Values/Ranges |
| Material | Stainless steel (304/316L), titanium, nickel-based alloys, etc. |
| Orifice (μm) | 0.5~200 (accuracy ±5%) |
| Thickness (mm) | 1~50 (Customizable) |
| Diameter (mm) | 10~600 (or shaped design) |
| Temperature Resistance (℃) | -200~800 (varies by material) |
| Pressure Resistance (MPa) | ≤20 (special design for high pressure environment) |
| Porosity (%) | 30~60 |
| Permeability | Tested in accordance with ASTM B311 |
product Display
Production Process of sintered metal filter disc
1. Selection of raw materials
- Select spherical metal powder or short fiber, particle size range 1~150μm, strictly control the oxygen content and impurities.
2. Molding process
- Molding: The powder is filled into molds and pressed into blanks at high pressure (100~600MPa).
- Isostatic pressing molding: Complex shapes are pressed by cold/hot isostatic pressing to improve the density uniformity.
3. Sintering Process
- Protective atmosphere sintering: under hydrogen or vacuum, the temperature reaches 60%~90% of the melting point of the material (e.g., stainless steel: 1,100~1,300℃), and the heat preservation is 1~4 hours to realize the metallurgical bonding of the particles.
4. Post-treatment
- Machining: turning, drilling, welding flanges, etc.
- Surface treatment: electrolytic polishing (to enhance corrosion resistance), coating (PTFE to enhance stain resistance).
5. Quality Inspection
- Pore analysis: bubble method, pressed mercury meter test pore size distribution.
- Strength test: compressive strength ≥50MPa, flexural strength ≥100MPa (depending on application requirements).
- Permeability verification: flow rate and pressure drop tested by ISO 4003 standard.
What are the advantages of sintered metal filter disc?
1. Extreme environmental adaptability
- Resistant to high temperature (800℃) and thermal shock, suitable for aerospace engine fuel filtration.
- Acid and alkali resistance (pH 0~14), used for chemical strong corrosive media separation.
2. Long life and easy maintenance
- High mechanical strength, can be repeatedly backwashed (e.g. PTFE coated filter sheets support 100,000 pulse cleaning).
- No shedding of filter material, in line with FDA/GMP standards, to meet the requirements of pharmaceutical sterility.
3. Energy saving and high efficiency
- Low pressure loss design reduces energy consumption, and the flow rate is more than 30% higher than the traditional cartridge when the porosity is ≥50%.
4. Multi-functional integration
- Can compound catalytic layer (such as precious metal coating) to realize filtration-catalytic integration for automobile exhaust treatment.
What are the application of sintered metal filter disc?
1. Chemical and petrochemical
- Catalyst recovery, polymerization reactor gas distribution, acid mist capture.
2. Energy and environmental protection
- Nuclear power plant argon gas purification, waste incineration flue gas dedusting (temperature 600 ℃ or more).
3. Biomedical
- Vaccine production sterile filtration, chromatography column packing support.
4. food and beverage
- Beer yeast filtration, edible oil refining and decolorization.
5. High-end manufacturing
- 3D printing metal powder screening (0.5μm high-precision filter), semiconductor ultrapure water preparation.
6. Automotive and Aerospace
- Fuel nozzle filtration, hydraulic system contamination control.