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What is the shelf life of an o-ring?
I have had no problems using o-rings ten years old and maybe sometimes older. If they are pliable they should be fine.
I have had no problems using o-rings ten years old and maybe sometimes older. If they are pliable they should be fine.
See lessWhy is vacuum grease needed on o-ring installations?
Vacuum grease is not "needed" on o-rings to make a vacuum tight seal. Vacuum grease provides two things, 1) lubrication to allow for easier installation of the o-ring. 2) lubrication to allow movement of the sealing surfaces during evacuation. Grease is actually a detriment, as it collects dirt thaRead more
Vacuum grease is not “needed” on o-rings to make a vacuum tight seal. Vacuum grease provides two things, 1) lubrication to allow for easier installation of the o-ring. 2) lubrication to allow movement of the sealing surfaces during evacuation. Grease is actually a detriment, as it collects dirt that can eventually cause leaks.
See lessHow many microns needed to reach 10-4 torr?
10-3 Torr is 1 micron, so 10-4 Torr is .1 micron
10-3 Torr is 1 micron, so 10-4 Torr is .1 micron
See lessWhat is the difference between a sensor and a thermocouple in a vacuum furnace?
The words sensor and thermocouple are somewhat generic. A sensor is a device that measures a physical property and responds to it. A thermocouple is a sensor and can be used to measure pressure (vacuum) or temperature. We typically call the vacuum measuring device a vacuum thermocouple gauge andRead more
The words sensor and thermocouple are somewhat generic. A sensor is a device that measures a physical property and responds to it. A thermocouple is a sensor and can be used to measure pressure (vacuum) or temperature. We typically call the vacuum measuring device a vacuum thermocouple gauge and the temperature measuring device a thermocouple.
See lessWhat causes heating elements to fail?
It could be oxidation reducing the surface area and strength of the heating element over time. It could be arcing or shorting to ground. Impact from load carts, parts falling and/or someone bumping them accidentally of course
It could be oxidation reducing the surface area and strength of the heating element over time. It could be arcing or shorting to ground. Impact from load carts, parts falling and/or someone bumping them accidentally of course
See less