- Reaction score
- 13,475
Yes, although with good-quality fittings the contact should be gas-tight enough not to fail so often. Contact wiping is a work-around for poor design and poor materials. Failure of spring temper can be an integral part of the runaway process too:
Contact is loose - surfaces oxidise.
Oxidation increades resistance, contact heats more.
Heat weakens spring tension, contact gets looser...
Contact is loose - surfaces oxidise.
Oxidation increades resistance, contact heats more.
Heat weakens spring tension, contact gets looser...