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China Suppliers Factory Sintered Metal Powder Filter Cartridge for Precision Gas and Liquid Filtration
Product Parameters
| Project | Parameter Range/Typical Values | Units | Description |
|---|---|---|---|
| Materials | 304/316L/310/copper/nickel, etc. | - | Commonly used 316L is suitable for most corrosive media |
| Aperture (rated) | 0.1-200 | µm | Can be used for coarse filtration from 0.1 µm ultra precision to hundreds of µm |
| Porosity (porosity) | 25-60 | % | Common 30-45% |
| Filtration efficiency | 60% - ≥ 99.999% (apparent pore size/particle size) | % | Calculated by specific particle size |
| Working temperature | -200-800 (depending on material) | ℃ | Stainless steel can withstand high temperatures (300-700 ℃) |
| Maximum working pressure | 0.6- ≥ 25 | MPa | Depending on the structure and joint design |
| Size (diameter x length) | Customization, commonly seen as Φ 10-300 × 20-1200 | mm | Customizable according to mold or welding requirements |
| Interface method | Card type, flange, thread, welding, flanging, etc. | - | Select based on system interface |
| Surface treatment | Polishing, sandblasting, passivation, coating | - | Improving corrosion resistance or cleanliness |
| Structural form | Whole sintering, laminated/gradient, layered structure | - | Multiple pore size gradients can be used to improve efficiency |
| Repeated cleaning lifespan | ≥ 100 times (depending on operating conditions) | times | properly maintained for a long lifespan |
| Finished product inspection | Gas permeation test, particle retention test, mechanical strength | - | Factory inspection according to standards |
Note: The above are common reference values, and specific parameters can be customized according to the medium, temperature, pressure, and accuracy requirements.
Production process of Sintered metal powder filter cartridge
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1
Raw material preparation: Select qualified metal powder (particle size, chemical composition), and add binders or additives if necessary.
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2
Powder batching and screening: Screen and mix according to the formula to ensure the particle size distribution and uniformity of the powder.
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3
Molding: compression molding or injection molding; Sometimes isostatic pressing is used to improve density uniformity.
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4
Pre burning/degreasing (if containing organic binders): Low temperature heating to remove organic matter and prevent sintering defects.
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5
Sintering (high temperature): Heat up according to the process curve in a protective atmosphere or vacuum to the sintering temperature and keep it warm to form a dense/porous metal skeleton.
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6
Heat treatment/tempering (if necessary): Improve mechanical properties or eliminate stress.
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7
Mechanical processing and finished product processing: cutting, turning end faces, punching, welding flanges or joints, flanging, etc.
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8
Surface treatment and cleaning: such as acid pickling passivation, sandblasting or polishing, ultrasonic or chemical cleaning to remove residual impurities.
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9
Inspection and testing: size, porosity, gas permeability, filtration efficiency, pressure resistance, metallographic examination, etc.
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10
Packaging and shipping: Protection, cleanliness level labeling, and accompanying inspection reports.
Advantages of Sintered metal powder filter cartridge
High mechanical strength
The metal substrate can withstand large pressure differentials and impacts, making it more durable than sintered ceramics or fiber filter materials.
High temperature and pressure resistance
Suitable for high temperature and high pressure working conditions, long-term stable operation.
Corrosion resistance
Stainless steel, nickel based materials, and other materials perform well in various chemical media (depending on the material).
Washable/Renewable
Supports multiple regeneration methods such as backwashing, ultrasonic, chemical cleaning, heat treatment, etc., with long lifespan and low usage cost.
Controllable pore structure
By adjusting the particle size and sintering process of the powder, the pore size and porosity can be adjusted to achieve the desired retention performance and flow rate requirements.
No fiber shedding, no adhesive residue
Suitable for occasions with high cleanliness requirements (such as pharmaceuticals, food, semiconductors, etc.).
Customizable design
Shape, size, interface, and surface treatment can be customized as needed for complex system integration.
Application of Sintered metal powder filter cartridge
Petrochemical and refining
Liquid/gas pretreatment, catalyst protection, oil filtration, degassing/deslagging.
Pharmaceutical and Bioengineering
Process filtration without fiber contamination, pre-treatment before sterilization, gas dialysis, and liquid clarification.
Food and Beverage
Syrup, Beverage, Alcohol Clarification, Liquid Recycling and Purification.
Automotive and aviation
Fuel/lubricant filtration, hydraulic system protection, fuel injection pre filtration.
Electricity and Energy
Steam Turbine, Gas Turbine Inlet and Oil System Filtration, Compressed Air Purification, Hydrogen, Natural Gas Purification.
Precision Manufacturing and Semiconductors
Ultra pure Gas and Chemical Filtration, Vacuum System Protection.
Environmental Protection and Water Treatment
Industrial wastewater filtration, oil-water separation, front-end filtration for flue gas desulfurization/denitrification.
Metallurgy and casting
Metal liquid filtration (specific materials), gas distributor, slag interception.
Laboratory and scientific research
As a filtering device, gas distribution and diffuser, catalytic bed carrier, etc.
Selection suggestions and maintenance points
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Select the rated pore size based on the filtered medium (gas/liquid), particle size distribution, and required retention efficiency.
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Considering the working temperature and corrosiveness, choose suitable materials (such as 316L or more corrosion-resistant nickel based alloys).
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If frequent cleaning is required, choose a structure that is easy to disassemble or can be backwashed in situ.
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The maximum allowable pressure difference should have a safety margin to avoid exceeding the design pressure difference when the filter is clogged.
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Cleaning methods: backwashing (liquid/gas), ultrasonic cleaning, acid washing/alkali washing (note material compatibility), high-temperature burning to remove organic matter.
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Regularly check the filtration efficiency and pressure drop curve, and clean or replace if there is a significant increase in pressure drop or decrease in efficiency.
If needed, I can:
- Based on your working conditions (medium, temperature, pressure, target particle size, flow rate, etc.), help recommend specific model parameters;
- Provide standardized technical parameter tables (which can be directly used for quotation or technical specifications);
- Explain the specific operational steps and precautions for common cleaning and regeneration processes.
Frequently Asked Questions (FAQ)
Q
What materials are commonly used for sintered metal powder filter cartridges?
Common materials include stainless steel (304, 316L, 310), copper, and nickel. Among these, 316L is the most frequently used because of its excellent corrosion resistance in most demanding media.
Q
What is the maximum working temperature of these filter cartridges?
The working temperature ranges from -200°C to 800°C, depending heavily on the chosen material. For instance, stainless steel variants can reliably withstand continuous high temperatures between 300°C and 700°C.
Q
Can sintered metal powder filter cartridges be cleaned and reused?
Yes, they are highly renewable. They support multiple cleaning methods including backwashing (with gas or liquid), ultrasonic cleaning, acid/alkali washing, and high-temperature burning. Properly maintained, they can be cleaned and reused more than 100 times.
Q
What filtration efficiency and pore sizes can be achieved?
Sintered metal powder filter cartridges offer a rated aperture range from 0.1 µm (ultra-precision) to 200 µm (coarse filtration). The filtration efficiency can range from 60% to ≥ 99.999% depending on the specific particle size and pore design.
Q
Why choose sintered metal over fiber or ceramic filter materials?
Sintered metal cartridges offer superior mechanical strength to handle high pressure drops, better thermal shock resistance, and eliminate the risk of fiber shedding. This makes them ideal for high-cleanliness applications like pharmaceutical and semiconductor manufacturing.