EMI Shielding Products
EMI vent panels
description2
EMI vent panel Gasket Selection
The company can provide customers with a variety of gaskets for shielded ventilation panels. These gasket types mainly include: beryllium copper reed, nickel-plated reed, tin-plated reed, wire mesh combination gasket, all-metal wire mesh gasket and aluminum silver-plated rubber gasket.
Surface treatment process performance table
|
Treatment process |
Process Code |
Process Description |
Scope of application |
|
Bright nickel plating |
01 |
Amorphous coating, good environmental resistance, excellent electrical and magnetic properties. |
Aluminum ventilation windows Steel ventilation windows (including carbon steel, stainless steel) |
|
Black nickel plating |
04 |
Black, in line with customer color consistency requirements, has good environmental resistance and excellent screen performance. |
Aluminum ventilation windows Steel ventilation windows (including carbon steel, stainless steel) |
|
QPQ Salt Bath |
06 |
Black, to match the customer chassis color, has lower shielding effectiveness. |
Stainless steel ventilation window |
|
Electroplating Tin |
02 |
It has moderate environmental resistance, is lower cost than chemical nickel plating, and is easy to weld. |
Aluminum Ventilation Window Carbon Steel Ventilation Window |
|
Spray painting (varnish, conductive paint) |
05 |
It has medium environmental resistance and low cost, and is generally used for ventilation windows in shielded rooms. |
Aluminum ventilation windows Steel ventilation windows (including carbon steel, stainless steel) |
|
Conductive Oxidation |
03 |
Low cost, resistant to moisture and heat. |
Aluminum ventilation window |
|
Passivation treatment |
07 |
Low cost, resistant to moisture and heat. |
Stainless steel ventilation window |
Type of Shielded Vent Panels
Steel Honeycomb Ventilation Panels
Steel Honeycomb Ventilation Panels are regular hexagonal honeycomb shielding ventilation panels made of carbon steel or stainless steel strips through a special process. They have the characteristics of large ventilation volume, firmness, not easy to deform, strong resistance to mechanical impact, and wideband high shielding efficiency. They are particularly suitable for equipment and facilities such as chassis (cabinets), electronic cabins, and shielding rooms with high shielding efficiency requirements and harsh application environments such as impact and vibration resistance.
Product Features
·High physical strength
·Good shielding performance
·High corrosion resistance
Application Areas
Mainly used in shielded rooms and microwave darkrooms.
Product Performance
|
Project Name |
Parameter Value |
Test Standards |
||||
|
Shielding effectiveness dB |
200kHz (magnetic field) |
100MHz (electric field) |
500MHz (electric field) |
1GHz (plane wave) |
10GHz (plane wave) |
GB/T 12190-2006 |
|
Carbon steel honeycomb φ2.4 |
90 |
115 |
115 |
112 |
110 |
|
|
Carbon steel honeycomb φ3.18 |
80 |
110 |
110 |
105 |
100 |
|
|
Stainless steel honeycomb φ2.4 |
65 |
85 |
90 |
95 |
85 |
|
|
Stainless steel honeycomb φ3.18 |
55 |
75 |
85 |
90 |
75 |
|
|
Working temperature℃ |
-85～+165 |
|
||||
|
Wind resistance |
≤8 |
SJ 20755A-2005 |
||||
|
Salt spray test |
After the test, the corroded area of the material is less than or equal to 5% of the total area. |
GJB 360B-2009 |
||||
|
Steady-state moist heat |
After the test, there is no cracking, bubbling, or cracking. |
GJB 360B-2009 |
||||
|
Temperature shock |
After the test, there is no cracking, disconnection or corrosion product. |
GJB 360B-2009 |
||||
|
High temperature storage |
After the test, there is no cracking, bubbling, or cracking. |
GJB 150.3A-2009 |
||||
|
Low temperature storage |
After the test, there is no cracking, bubbling, or cracking. |
GJB 150.4A-2009 |
||||
Note: The data in the table are the shielding effectiveness when the thickness of the steel honeycomb is 12.7mm. If the thickness is reduced or increased, the shielding effectiveness will also change.
Shielded aluminium honeycomb vent
- Shielded aluminium honeycomb vent is a regular hexagonal honeycomb shielding panels made of high-quality aluminum honeycomb and aluminum alloy by extrusion or spinning frame profile through mechanical connection. It has the characteristics of high shielding efficiency, large ventilation volume and light weight. Under the conditions of the same aluminum honeycomb aperture, the same material and the same thickness, the type of conductive coating on the surface determines the shielding efficiency. The surface coating treatment is chromate oxidation, chemical nickel plating or electroplating tin. Multi-layer dustproof electromagnetic shielding ventilation panels can also be customized according to customer needs.
-
Product features
·Light weight
·Fireproof: Aluminum plate is non-combustible material
·Easy to install, easy to disassemble and assemble, convenient for multiple uses
Application areas
Mainly used in communications, testing, computers, medical and other fields
Product Performance
|
Project Name |
Parameter Value |
Test Standards |
||||
|
Shielding effectiveness dB |
200kHz (magnetic field) |
100MHz (electric field) |
500MHz (electric field) |
1GHz (plane wave) |
10GHz (plane wave) |
GB/T 12190-2006 |
|
Conductive Oxidation |
45 |
70 |
70 |
65 |
50 |
|
|
Tinning |
65 |
85 |
85 |
74 |
68 |
|
|
Nickel Plating |
70 |
90 |
90 |
83 |
71 |
|
|
Working temperature℃ |
-85～+165 |
|
||||
|
Wind resistance |
≤8 |
SJ 20755A-2005 |
||||
|
Salt spray test |
After the test, the material corrosion area is less than or equal to 5% of the total area |
GJB 360B-2009 |
||||
|
Steady-state moist heat |
After the test, there is no cracking, bubbling, or cracking. |
GJB 360B-2009 |
||||
|
Temperature shock |
After the test, there is no cracking, disconnection or corrosion product. |
GJB 360B-2009 |
||||
|
High temperature storage |
After the test, there is no cracking, bubbling, or cracking. |
GJB 150.3A-2009 |
||||
|
Low temperature storage |
After the test, there is no cracking, bubbling, or cracking. |
GJB 150.4A-2009 |
||||
Dust filter shielding air vent
- Dust filter shielding air vent is a new type of shielding ventilation component made of nickel foamed metal and high magnetic permeability metal mesh. The surface high magnetic permeability metal mesh provides high low-frequency magnetic shielding performance, while also protecting the foamed metal (relatively soft in texture); the metal micropores of the foamed metal are small in size, and can achieve high shielding efficiency and dust filtering performance within a limited thickness.
-
Product Features
·Lightweight
·Ultra-thin
·Anti-electrochemical corrosion
·Dust filtering function
Application Areas
Suitable for electronic devices with strict space constraints such as portable computers
Product Performance
|
Project Name |
Parameter Value |
Test Standards |
||||
|
Foam ventilation window |
200kHz (magnetic field) |
100MHz (electric field) |
500MHz (electric field) |
1GHz (plane wave) |
10GHz (plane wave) |
GB/T 12190-2006 |
|
Shielding effectiveness dB |
74 |
90 |
87 |
82 |
70 |
|
|
Working temperature℃ |
-85～+165 |
|
||||
|
Wind resistance |
≤15 |
SJ 20755A-2005 |
||||
|
Salt spray test |
After the test, the corroded area of the material is less than or equal to 5% of the total area. |
GJB 360B-2009 |
||||
|
Steady-state moist heat |
After the test, there is no cracking, bubbling, or cracking. |
GJB 360B-2009 |
||||
|
Temperature shock |
After the test, there is no cracking, disconnection or corrosion product. |
GJB 360B-2009 |
||||
|
High temperature storage |
After the test, there is no cracking, bubbling, or cracking. |
GJB 150.3A-2009 |
||||
|
Low temperature storage |
After the test, there is no cracking, bubbling, or cracking. |
GJB 150.4A-2009 |
||||
If you need customized products and professional services, don't hesitate, please contact us immediately!