Kemtron Ltd
19-21 Finch Drive
Braintree, Essex.
CM7 2SF, UK.
Tel: +44 (0)1376 348115
Fax: +44 (0)1376 345885

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Oriented Wire in Silicone - Product Specifications & Performance

 

Table 1: Material Specification.
Wire:
Monel:USA Specification - QQ-N-281-B, 0.0045" dia
Aluminium:USA Specification - Alloy 5056, 0.005" dia
Elastomers:
Solid Silicone Grade 40:USA Specification - ZZ-R-765 Class2B
 Temperature range: - 65°C to + 200°C
 Colour: Light Grey
Silicone SpongeUSA Specification - AMS-3195
 Temperature range: - 65°C to + 200°C
 Colour: Light Grey
Solid Fluorosilicone Grade 50:USA Specification - MIL-R-25988
 Temperature range: - 55°C to + 200°C
 Colour: Blue

Table 2: Typical Shielding Performance.
 10KHz(M)100KHz(M)1MHz(E)100MHz(E)1GHz(E)10GHz(E)
Monel:55dB72dB138dB125dB108dB60dB
Aluminium:41dB64dB138dB100dB98dB48dB

Table 3: Typical Closing Force required. (See notes below)
CodeMaterial ThicknessCompression %Kg/cm2N/cm2
4100.8mm15%2.221.9
4101.6mm15%7.169.3
4102.4mm15%7.876.7
4103.2mm15%11.1108.8
4104.8mm15%13.8134.9
4100.8mm20%2.423.6
4101.6mm20%8.678.0
4102.4mm20%9.896.4
4103.2mm20%13.3130.7
4104.8mm20%17.5172.0
4301.6mm30%1.515.0
4302.4mm30%2.120.6
4303.2mm30%2.928.4
4301.6mm40%2.222.3
4302.4mm40%2.524.0
4303.2mm40%3.736.4
Notes:
1. Because of the possible variation in the manufacture of the material (within allowable tolerances) the data in Table 3 should be used only as a guide.
2. The distance between fixings should be such that the maximum deflection between centres is 50% less than the desired compression of the gasket.
3. The flatness tolerance shall be such, that the combined extreme tolerances maximum material condition (MMC) of both surfaces, is less than 50% of the desired compression.

 

 
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