Sintered Mesh Laminate

wire

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Sintered mesh laminate belongs to high strength porous material. It is made of stainless steel or other alloys. Single layer or multiple layers of woven wire meshes are permanently bonded together by an unique diffusion-bonded technique. Compared with traditional wire mesh, sintered mesh laminate provides more additional benefits such as stability and mechanical strength. Therefore, it is widely constructed as a filter medium in many industries.

Three sintered mesh laminates stacked together, dutch woven wire mesh design.
Sintered mesh laminate, several dutch woven wire meshes sintered together, layer number can be made flexibly.One sintered mesh laminate, plain weave square woven wire mesh, one layer is separated forcibly from its body.
One layer is separated forcibly from other layers of the sintered mesh, which offers us to see the sintered structure clearly.
According to the number of layers, sintered mesh laminate can be divided into two series: single layer sintered mesh laminate and multiple layer sintered mesh laminate.

Single layer sintered mesh laminate
As is known to us all, a single layer woven wire mesh has some shortcomings although it is used in a wide range of applications, the mesh has a tendency to fray at the edges, and wires may shift within the weave, which in turn changes the whole structure, also effects the filter rating because its pore size has been compromised.

One single layer square woven wire mesh, the edge moves easily, and unstable wires easily lead to inconsistent size.
Loss and distortion of the edge lead to inconsistent aperture sizes of the single layer square woven wire mesh.
The sintering process, combination of heat and pressure, creates molecular diffusion-welds at each and every "intersection" in the wire mesh where the wires cross over and under one-another, so as to make the wire mesh full of enhanced mechanical and filtration properties.

Take 10 × 10 plain weave woven wire mesh for an example, the cross-section drawing shows clear change before sintering and after sintering of the woven wire mesh.

Before sintering process

The structural analysis of one piece of wire mesh, wires are loose at all intersections.
Before sintering process, the wires are loose at the intersections.
After sintering process

The structural analysis of sintered wire mesh, wires are sintered at every wire intersection.
After the sintering process, the wires are diffusion-bonded at every wire intersection.
Specification - single layer sintered mesh laminate
Product code Filter rating (μm) Structure Wire diameter (inch) Overall thickness (inch) Weight / sq.ft (kg)
SLSM-01 5 200 × 1400 0.0028 / 0.0016 0.0058 0.1135
SLSM-02 178 80 × 0.0055" 0.0055 0.0088 0.0772
SLSM-03 234 60 × 0.0075" 0.0075 0.0125 0.1090
SLSM-04 279 50 × 0.009" 0.009 0.0144 0.1317
SLSM-05 380 40 × 0.01" 0.01 0.0147 0.1271
SLSM-06 540 30 × 0.012" 0.012 0.0155 0.1362
SLSM-07 860 20 × 0.016" 0.016 0.0238 0.1589
SLSM-08 2460 8 × 0.028" 0.028 0.0397 0.1907
SLSM-09 1905 10 × 0.025" 0.025 0.88138 0.0772
Multiple Layer Sintered Mesh Laminate
Ranging from two layers to more than 25 layers, multiple layer sintered mesh laminate provides enhanced mechanical properties for filters and extreme environment applications. One layer wire mesh for filtration, separation, sifting, it lacks structural rigidity which easily leads to damage. Adding to another or more layers in sequence, through sintering process, a deep filter medium is capable of withstanding high pressure drop.

With a five-layer sintered mesh as a strong base, six-layer sintered mesh is made to add one layer of 12 mesh. Six-layer sintered mesh laminate can be used as filtering, washing, drying that three in one medical filter plate, which can be divided into two types: split and monolithic construction filter plate.

Two pieces of sintered meshes with six layers diffusion bonded into square shape, square woven wire mesh for reinforcing layer.
Six layered sintered mesh laminate, widely used for filtering, washing, drying that three in one in medical filter plate.It shows the components of sintered mesh with six layers.
This is one combination of a six-layer sintered mesh, with more mechanical strength.
Six-layer sintered mesh is composed of three reinforcing layers, a protective layer, filter layer and dispersion layer.
One six-layer sintered mesh is manufactured by adding one reinforcing layer on the basis of five-layer sintered mesh.
Specification - two and three layers sintered mesh laminate
Code Layer number Structure Filter rating (μm) Overall thickness (mm) Weight / sq.ft (kg)
SML-201 2 100 × 0.0045" / 200 × 1400 5 0.2286 0.1135
SML-202 2 10 × 0.025" / 325 × 0.0014" 44 0.9144 0.2088
SML-203 2 60 × 0.0075" / 325 × 0.0014" 44 0.36576 0.1271
SML-204 2 10 × 0.025" / 250 × 0.0016" 55 0.9398 0.2088
SML-205 2 10 × 0.025" / 200 × 0.0021" 74 0.9525 0.2179
SML-206 2 30 × 0.012" / 150 × 0.0026" 105 0.4953 0.1680
SML-207 2 10 × 0.025" / 150 × 0.0026" 105 0.4953 0.2177
SML-208 2 60 × 0.0075" / 100 × 0.0045" 140 0.51308 0.1725
SML-209 2 10 × 0.025" / 100 × 0.0045" 140 0.96266 0.2542
SML-210 2 20 × 0.016" / 20 × 0.016" 864 0.8128 0.3178
SML-301 3 60 × 0.0075" / 325 × 2300 / 60 × 0.0075" 2 0.56642 0.2633
SML-302 3 60 × 0.0075" / 200 × 1400 / 60 × 0.0075" 5 0.62738 0.2906
SML-303 3 60 × 0.0075" / 165 × 1400 / 60 × 0.0075" 10 0.72136 0.2906
SML-304 3 60 × 0.0075" / 165 × 800 / 60 × 0.0075" 15 0.62738 0.2679
SML-305 3 60 × 0.0075" / 80 × 700 / 60 × 0.0075" 25 0.86106 0.2838
SML-306 3 60 × 0.0075" / 325 × 0.0014" / 60 × 0.0075" 44 0.62484 0.2361
SML-307 3 60 × 0.0075" / 250 × 0.0016" / 60 × 0.0075" 55 0.6223 0.2361
SML-308 3 60 × 0.0075" / 200 × 0.0021" / 60 × 0.0075" 74 0.64262 0.2452
SML-309 3 60 × 0.011" / 100 × 0.0045" / 200 × 0.0021" 74 0.72898 0.1998
SML-310 3 60 × 0.0075" / 150 × 0.0026" / 60 × 0.0075" 105 0.65786 0.2497
SML-311 3 60 × 0.0075" / 100 × 0.0045" / 60 × 0.0075" 140 0.76708 0.2815
Specification - Four-layer sintered mesh laminate
Product code Structure Filter rating (μm) Thickness (mm) Weight (kg/m2) Porosity (%)
FLSM-01 60 / filter layer / 40 / 20 2 - 200 1.0 4.4 44
FLSM-02 40 / filter layer / 20 / 16 2 - 200 1.7 6.2 54
Note: 1. Porosity takes that of 20 mesh as criteria. 2. The filter layer is taken as your demand.
Six-layer sintered mesh laminate
Filter rating: 1 μm to 100 μm.
Overall thickness: 3.5 mm.
Standard size: 1000 mm × 1200 mm.
Seven-layer sintered mesh laminate
Structure: 50 / filter layer / 40 / 20 / 40 / filter layer / 50.
Thickness: 2 mm.
Filter rating: 2 μm - 150 μm.
Weight: 7.4 kg/m2.
Porosity: 58%.
Material: SUS 304, SUS 304 L, SUS 316, SUS 316 L, other alloys are also available as required.

Feature
High mechanical strength and stability.
High permeability.
Stainless steel for corrosion resistance.
Easy to be fabricated into other deep filter media.
Accurate filter ratings.
Easy to clean, it can be reused for many times.
Application
Filtration: Hot gas filter element, process filter element.
Fluidization: Fluidized beds, air slides, aerators, flow control devices.
Other applications: Acoustic attenuation, foaming in air diffuser, flashing and explosion of flame arrestors prevention.