An o-ring should not leak when tested with a helium mass spectrometer in the range of 10-6 or 10-7 Torr. Acceptable leak rates would be subjective and relate to the materials being processed in the furnace and the hot zone deterioration that can be tolerated with a leaking o-ring or system.
An o-ring should not leak when tested with a helium mass spectrometer in the range of 10-6 or 10-7 Torr. Acceptable leak rates would be subjective and relate to the materials being processed in the furnace and the hot zone deterioration that can be tolerated with a leaking o-ring or system.
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The specific steps needed to improve the shelf life of an O-ring can vary depending on the O-ring material and the conditions it will be subjected to. Always refer to the manufacturer's recommendations for the best results. Improving the shelf life of an O-ring involves several best practices in stoRead more
The specific steps needed to improve the shelf life of an O-ring can vary depending on the O-ring material and the conditions it will be subjected to. Always refer to the manufacturer’s recommendations for the best results.
Improving the shelf life of an O-ring involves several best practices in storage and handling:
Material Selection: The choice of material for an O-ring is crucial as some materials degrade more quickly than others when exposed to certain environments or chemicals. Make sure to select a material that is compatible with the intended use.
Storage Conditions: O-rings should be stored in a cool, dark, and dry place. UV light can degrade many materials used for O-rings. O-rings should also be kept away from electric motors and other sources of ozone, which can cause rapid deterioration.
Proper Lubrication: When in use, proper lubrication can reduce wear and tear, thereby extending the effective life of an O-ring.
Protective Packaging: O-rings should be kept in sealed bags with a neutral gas like nitrogen, if possible, to prevent oxidation and other atmospheric damage.
Controlled Environment: Temperature and humidity should be controlled. Extreme temperatures and high humidity can accelerate the degradation of O-ring materials. It’s best to maintain a consistent and moderate environment.
Regular Inspection: Regularly inspect stored O-rings for signs of degradation, such as cracking, discoloration, or changes in texture.
Avoid Deformation: Store O-rings laid flat or hanging without tension, if possible, to avoid permanent deformation. O-rings that are deformed for an extended period may not function properly when used.
Cleanliness: Ensure that O-rings are clean before storage, as contaminants can cause degradation. They should be handled with clean gloves to avoid transferring oils or other contaminants.
Inventory Management: Use a first-in, first-out inventory system to ensure that O-rings are used in the order they are received, preventing old stock from becoming unusable.
Avoid Contact with Metals: Some metals can catalyze degradation. O-rings should not be stored in contact with metals, particularly copper or brass.
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