Honeycomb Vent Panels
●Think Schlegel EMI for Shielding
■As the originator of the fabric-clad foam EMI shielding technology, Schlegel EMI is the industry's most trusted name. Schlegel continues to set the standard for quality and innovation, designing advanced solutions for a wide range of applications.
■Modern electronic equipment often requires EMI Gaskets to avoid radiating EMI/RFI suspeptibility to outside sources of EMI/RFI. Maintaining electromagnetic compatibility can be an increasing challenge of the designers of today's electronic and electrical products.
■How do Honeycomb vents work:
▲The principle is that of "Waveguide beyond cutoff". The honeycomb vent is series of tubes that acts as a waveguide, guiding electromagnetic waves into or out of the enclosure, but as the tubes are long enough then it attenuates those waves. Typically the tube should be at least 3 times as long as the diameter. Good practice is 4 times. Therefore a 3.18mm cell should be 12.7mm long. Honeycomb material is used because it offers high shielding performance, light weight and good airflow.
■Schlegel uses 5052 grade aluminium foil which is a lightweight material offering superior strength and corrosion resistance over commercial grade aluminium foils. It meets all the requirements of MIL-C- 7438. This material is used to manufacture aircraft floors & wing edges, missile wings, helicopter rotor blades etc, so quality and repeatability is assured. Currently Schlegel has 7 frame styles available. To keep down production cost, vent panels made with styles 1701, 1703, 1705, 1706 & 1707 are normally supplied with 3 corners notched and the 4th joined corner welded. If required, all 4 corners of the panel can be supplied fully welded. Frame styles 1702 & 1704 are always supplied with fully welded corners.
■All frame styles are supplied with a conductive gasket to provide the best electrical contact between the frame and mating metal surface.
■Standard tolerances for overall Finished Vent Dimensions are +/- 0.8mm
■Standard tolerances on Hole Centres are +/- 0.4mm
■Typical corner radii on frame styles 1701,1703, 1705, 1706 & R3.0mm
■The standard finish for aluminium vent panels is SemPas , it fully meets the RoHS directive and replaces Alocrom 1200. This in-house process applies a permanganate passivation which is a chromate free, inorganic and non toxic coating. The process produces a dense, uniform coating consisting of aluminium and reduced manganese oxides giving a golden yellow colour to the surface. The surface finish is conductive with a low contact resistance equalling Alocrom 1200. It also meets all requirements of MIL-C-5541E for corrosion and electrical conductivity
Selection catalogue
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1702 、 1703 、 1701 、 1705 、 1706 、 1704 、 TYPE 1707 、 1707 、 TYPE 1702 、 TYPE 1709 、 1709 、 TYPE 1708 、 1708 、 Type 1 、 Type 2 、 Type 3 、 Type 4 、 Type 5 、 Type 6 、 TYPE 1703 、 TYPE 1704 、 TYPE 1705 、 Schlegvent40 、 Schlegvent60 、 Schlegvent80 、 Schlegvent92 、 Schlegvent120 、 1721 、 1722 |
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Honeycomb Vent Panels 、 Aluminium Honeycomb Air Ventilation Panels 、 Combined EMC and Dust Filter Ventilation Panels 、 Ventilation panels 、 Aluminium Screen EMC and Dust Filter Ventilation Panels |
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[ aircraft floors ][ wing edges ][ missile wings ][ helicopter rotor blades ][ electronic enclosures ][ Air Conditioning Units ][ Fan housings ][ EMC Racks ][ commercial electronic enclosures ][ commercial ] |
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Selection guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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06/2019 |
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3.4 MB |
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