I asked this somewhere on here before but it may be a little better received in this thread.However, to ensure a long service life, a contact aid compound is recommended to fill the voids in the contact area and prevent oxidation or corrosion. Many proprietary compounds are available or, if none are available, petroleum jelly or, for higher temperatures, silicone vacuum grease may be used.
Thank you! I just looked that up and for sure that is a concern. The question I now have is: Is there any difference with this product as the carbon is suspended in an environment that excludes moisture and O2 or does this not mitigate/eliminate the concern? I just fired off an email to the manufacture.I would avoid putting anything carbon on aluminium. There have been big problems in the aviation world with carbon fiber in direct contact with aluminium.
OK so where are we on this graph at say 3 Nm or 4 Nm torque?Contact resistance falls rapidly with increasing pressure, as shown in Figure 69, but above a pressure of about 30 N/mm² there is little further improvement. In most cases it is not advisable to use contact pressures of less than 7 N/mm², with pressures above 10 N/mm² being preferred. The contact resistance for a joint of a particular overlap area is obtained from Figure 69 by dividing the contact resistance for 1 mm2 by the overlap area in mm2 ."
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OK so where are we on this graph at say 3 Nm or 4 Nm torque?