Perforated Plate Composite Sintered Mesh

Perforated Plate Composite Sintered Mesh

Perforated plate composite sintered mesh is a high-strength, impact-resistant metal filter material. By composite supporting perforated plates on one or both sides of the standard stainless steel sintered mesh, an enhanced structure with high-precision filtration and extreme working condition tolerance is formed. It is designed to solve the filtration needs under harsh working conditions such as high pressure difference, high flow rate, large particle impact or frequent backwashing, and is a "heavy armor" solution in the field of industrial filtration.

                                                                               Perforated Plate Composite Sintered Mesh

The perforated plate composite sintered mesh consists of a filter layer and a reinforcement layer. The filter layer is an integral porous structure formed by high-temperature vacuum sintering of multiple layers of stainless steel woven wire mesh with different mesh sizes (such as protective layer, control layer, and dispersion layer), providing precision filtering function (absolute accuracy 1~100μm ). The reinforcement layer is a stamped or laser-cut metal perforated plate (thickness 0.5~5mm), the material matches the filter (such as 304/316L), the pore size is usually larger than the filter accuracy , and plays a role in mechanical support and impact protection . The filter layer and the reinforcement layer are heated at high temperature in a vacuum furnace and sintered twice to form a seamless integral structure .

Key performance advantages of perforated composite sintered mesh

             Perforated Plate Composite Sintered Mesh                           Perforated Plate Composite Sintered Mesh                Perforated plate composite sintered mesh filter element

 Core application scenarios of perforated plate composite sintered mesh (preferred for harsh working conditions)1. High-pressure fluid filtration

- Petrochemical: high pressure differential oil filtration (＞15MPa) in hydrocracking unit, reactor inlet and outlet protection.

- Hydraulic system: Aviation/marine ultra-high pressure hydraulic oil terminal filtration (to prevent filter collapse).

2. High impact media

- Coal chemical industry: Filter out hard impurities such as gangue in coal slurry transportation pipelines.

- Mineral and metallurgy: filtration of ore dressing slurry, interception of impurities before molten metal casting (such as filtration of molten aluminum ).

3. Strong corrosive environment

- Pickling line: high temperature concentrated acid (hydrochloric acid, sulfuric acid) circulation filtration, the perforated plate material can be Hastelloy C276.

- Lithium battery electrolyte: Nano-scale nickel-cobalt-manganese particle interception (316L perforated plate + sintered mesh).

4. Extreme backwash conditions

- Power plant water treatment: reverse osmosis pre-filter, able to withstand 0.8MPa recoil pressure shock.

- Biological fermentation: online backwash filtration of fermentation liquid to resist frequent pressure fluctuations.

 Performance comparison between perforated plate composite sintered mesh and traditional sintered mesh

  Disc-perforated plate composite sintered mesh                    Stainless steel perforated plate sintered mesh                        Copper perforated plate sintered mesh

 Key points for the selection and design of perforated plate composite sintered mesh

1. Perforated plate parameters

- Pore diameter: needs to be larger than the filtration accuracy (to avoid clogging due to retention at the orifice), usually φ2~8mm.

- Opening rate: 30%~60% (too high will weaken the strength, too low will increase the pressure drop).

- Plate thickness: 0.8~3mm according to the pressure level (1MPa pressure difference needs to be ≥1.5mm).

2. Composite method

- Single-sided composite: filter side facing the perforated plate (impact resistant type), or back-side composite (compression resistant type).

- Double-sided composite: full protection in extreme working conditions (cost increased by 30%).

3. Edge sealing

- Laser welded edge seals: prevents bypass of unfiltered fluid (critical!).

 Industry application cases of perforated plate composite sintered mesh

- Refinery Hydrogenation Reactors:

It uses double-sided 316L perforated plate (2mm thick) + 5μm sintered mesh, can withstand 21MPa hydrogen-oil mixed fluid, and has a service life of 3 years (ordinary sintered mesh only 6 months).

- Lithium battery graphite negative electrode coating line:

Single-sided titanium perforated plate + 10μm sintered mesh, intercept graphite agglomerate particles, resist slurry pump pulse shock, and extend the replacement cycle to 12 months.

-Perforated plate composite sintered mesh = precision filtration + metal armor. The essence is to solve the failure problem of traditional sintered mesh under extreme working conditions through structural reinforcement.

> Choose it when: pressure>5MPa, fluid contains hard particles, high-frequency recoil is required, and accuracy drift is not allowed.

> Don’t choose it when: low pressure clean fluid filtration (over-design increases costs).

Perforated plate composite sintered mesh is the "special forces" in the filtration system. It is irreplaceable in petrochemical, energy, cutting-edge manufacturing and other fields. Although the initial cost is 30% to 50% higher, the overall cost is significantly reduced through several times increase in lifespan and zero failure rate.