Application of sintered filter
Many different sectors employ sintered filters because they are incredibly effective and long-lasting filtration components. They are perfect for demanding applications because of their special qualities, which include chemical stability, high-temperature resistance, and adjustable porosity. The following are the primary uses for sintered filters:
1. Industrial Filtration
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• Gas and Liquid Filtration: Removes impurities from gases and liquids in chemical processing, oil refining, and petrochemical industries.
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• Hydraulic Systems: Filters oil and hydraulic fluids to prevent system failures caused by contaminants.
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• Dust Filtration: Used in dust collection systems in industries like steel, cement, and glass manufacturing.
2. Medical and Pharmaceutical Industry
The daily precautions of the chemical or pharmaceutical sector include playing with different substances that are dangerous to handle and are probably combustible if handled carelessly. Sintered filter components and profiles are common in this industry because foreign chemicals cannot be permitted to contaminate the material at hand.
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• Sterile Venting: Ensures contamination-free air and liquid passage in medical devices and bioreactors.
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• Drug Production: Filters fine powders or solutions during pharmaceutical manufacturing.
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• Breathing Systems: Provides filtration for medical gases and oxygen supply.
3. Automotive Industry
Vehicles require clean air, and using sintered filters is one of the greatest ways to prevent dust, debris, and extra liquid from spilling into the exhaust system.
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• Fuel Filtration: Removes contaminants from fuel, enhancing engine efficiency and performance.
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• Oil and Lubricant Filtration: Ensures clean lubrication in engines and gearboxes.
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• Exhaust Systems: Filters particulates from emissions, contributing to environmental compliance.
4. Food and Beverage Industry
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• Water Purification: Filters sediments and impurities to ensure clean water for food production.
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• Gas Filtration: Purifies gases like CO₂ used in carbonation and food packaging.
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• Powder Recovery: Captures food powders during processing.
5. Environmental and Energy Applications
Sintered filter application works well in high pressure conditions. The ability to control pressure, flow rate, and output according to the microns of porosity on the filter's surface is one advantage of employing them. Sintered filters are particularly important in nuclear reactors that use clean water as cooling. Filters that can withstand corrosion and high pressure are used in the energy sector.
- • Air Pollution Control: Removes fine particles from industrial exhaust systems.
- • Water Treatment: Filters solids and contaminants in wastewater treatment plants.
- • Renewable Energy: Used in biogas systems and fuel cells to purify gas streams.
6. Electronics and Semiconductor Industry
- • Chemical Filtration: Filters ultra-pure chemicals used in semiconductor manufacturing.
- • Process Gas Filtration: Ensures the purity of gases required for chip production.
- • Cooling Systems: Filters fluids used in electronic cooling systems.
7. Aerospace and Defense
- • Aviation Fuel Filtration: Ensures clean fuel for aircraft.
- • Air Supply Systems: Used in high-efficiency filtration for cabin air and oxygen systems.
- • Hydraulic Systems: Ensures smooth operation in aircraft hydraulic systems.
8. Electronics and Domestic Industries
For many years, filter covers have been a common feature of household appliances. Sintered filters are used in filtration units, water purifiers, vacuum cleaners, and blender dampers. Domestic appliances have been one of the largest and most common industries to use sintered filters.
Sintered mesh has become more common as clean air is passed to transistors, microprocessors, and delicate devices. Sintered filtered/meshes assist achieve the potential of high-performance electronics, which require controlled and clean air to operate at their best.
Why Sintered Metal Filters?
We've been discussing sintered filters, but why do the aforementioned businesses use them rather than other kinds of filters? People in these businesses have greater faith in sintered items for a number of significant reasons.
The inward or outward flow of liquid or gas is determined by the porosity of the sintered filter. Without the use of a pressure gauge, the filter material's controlled flow can be controlled.
High pressure conditions and sintered filters go hand in hand. When utilized in high pressure settings, the majority of alternative filter materials have a tendency to malfunction. When the pressure is really great, neither paper nor plastic may be used. Sintered filters are reliable because of this.
It can function in hot conditions. Up to 480°C can be tolerated by sintered filter steel mesh. There is no other kind of filter that can vary the heat resistance like the material or alloy does.
The hassle of sealing and ongoing inspection can be avoided by welding metal sintered filters to the filter device's body. Since sintered filters don't need to be sealed, their lifespan is increased.
As a result, sintered filters have a wide range of uses and can be beneficial for you for a variety of reasons. Please get in touch with us if you're searching for a trustworthy Chinese manufacturer of sintered filters at the most competitive pricing. Jiehuang can assist you with your project and produces sintered filter bells.
MATERIALS
Commonly used sintered metal filter materials and their characteristics and applications:
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Material
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Key Features
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Typical Applications
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Stainless Steel
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- Excellent corrosion resistance
- High mechanical strength
- High-temperature tolerance
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Food & beverage, chemical, and pharmaceutical industries
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Bronze
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- Good wear and corrosion resistance
- Excellent thermal and electrical conductivity
- Cost-effective
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Hydraulic systems, fuel, and oil filtration
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Titanium
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- Outstanding corrosion resistance
- Lightweight with high strength
- Biocompatible
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Aerospace, marine, medical, and pharmaceutical sectors
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Nickel & Alloys
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- Exceptional high-temperature and chemical resistance
- Stable in oxidizing and reducing environments
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Petrochemical, nuclear industries, high-temperature gas filtration
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Aluminum
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- Lightweight
- Good corrosion resistance
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Automotive and aerospace sectors
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Copper
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- High thermal and electrical conductivity
- Resistant to biofouling
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Heat exchangers, water filtration
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Alloy Steel
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- Enhanced strength and wear resistance
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Heavy-duty filtration in mining and energy sectors
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Composite Materials
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- Combines properties of different metals
- Customizable performance
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Advanced filtration in aerospace and industrial applications
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This table is concise and helps with quick material comparison and selection.
Main Steps of Producing Sinter Filters
The production of sintered filters involves four main steps:
1.Powder Preparation: Select and process high quality powders with appropriate particle size, such as stainless steel, copper, titanium, etc. to obtain the required porosity. Mix the powders with binders or additives to enhance compaction and sintering.
2.Compaction：The powder is pressed under high pressure into a mold or die to form a "green body," or first shape. The fundamental dimensions and form of the filter are established in this step.
3.Sintering In Powder Metallurgy: Sintering plays a crucial role in powder metallurgy. The green body is first heated in a furnace to a temperature lower than the material's melting point. After then, the particles are joined by diffusion to create a strong, permeable framework. In order to prevent oxidation, a regulated atmosphere—such as inert gas—is lastly maintained.
4.Finishing and Quality Control: The precise size and surface smoothness of sintered filters are achieved through machining or polishing. The filtration efficiency, strength, and pore size are all tested for quality. After completion, the filters are cleaned and prepared for shipping.
Main Features of Sintered Filters
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Feature
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Description
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Specific Details
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Uniform Porosity
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Ensures consistent filtration with even pore distribution across the filter surface.
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Pore sizes range from 0.5 µm to 1000 µm depending on application, offering precise filtration for fine particles.
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High Strength
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Withstands high pressures and mechanical stress without deformation.
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Can endure pressures up to 500 bar (7,250 psi) depending on material and construction.
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Temperature Resistance
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Operates effectively in extreme temperature ranges, both high and low.
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Suitable for temperatures from -200°C to 800°C (-328°F to 1472°F), depending on the material used.
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Corrosion Resistance
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Resistant to aggressive chemicals and corrosive environments, depending on material.
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Stainless steel sintered filters, for example, offer excellent corrosion resistance in acidic and alkaline environments.
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Reusability
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Can be cleaned and reused multiple times, reducing long-term costs.
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Typically can be reused over 1000 cleaning cycles without significant performance degradation.
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Filtration Precision
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Customizable pore sizes allow precise filtration for specific particle sizes.
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Offers precise filtration for particles ranging from 0.5 µm to 1000 µm depending on specific requirements.
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Low Pressure Drop
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Maintains high flow rates with minimal energy loss, enhancing system efficiency.
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Low pressure drop typically in the range of 0.1 bar to 1 bar (1.45 psi to 14.5 psi) for effective filtration without significant loss.
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Durability
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Long service life due to robust material construction and resistance to wear and tear.
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Durable for extended periods, with a typical lifespan of 5-10 years depending on usage and cleaning frequency.
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Environmentally Friendly
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Reduces waste through reusability and long lifespan compared to disposable filters. |
Compared to disposable filters, sintered filters reduce waste by up to 90% over their service life. |
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Customizable Design
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Tailored to meet unique requirements, including shape, size, material, and porosity levels. |
Filters can be customized in shapes ranging from round, square, and cylindrical to specialized geometries for particular applications. |
Custom Sintered Metal Filters
Custom sintered metal filters produced using cutting-edge powder metallurgy techniques are our specialty at Ningbo Jiehuang Chiyang Electrical Technology Co., Ltd. Using a variety of materials, such as titanium, bronze, nickel alloys, and stainless steel, our team can design and produce filters that are specifically suited to your filters. For your industry's particular needs, we offer exact control over critical characteristics including mechanical strength, pore size, and filtration effectiveness.
Our sintered metal filters are built to last, function well, and be reused, whether you require filters that can withstand high temperatures, corrosion, or fine filtration of tiny particles. Applications in chemical processing, pharmaceuticals, automotive, aerospace, and other fields are perfect for these filters.
Because of their low maintenance and reusability, our bespoke sintered metal filters are cost-effective while offering excellent filtration precision, minimum pressure drop, and extended service life. Together, we can design the ideal filtering system to meet your company's requirements.
