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2. Ozone cracking - Wikipedia

   en.wikipedia.org/wiki/Ozone_cracking

   Such seals are often critical for the operation of pneumatic controls, and if a crack penetrates the seal, all functions of the system can be lost. Nitrile rubber seals are commonly used in pneumatic systems because of its oil resistance. However, if ozone gas is present, cracking will occur in the seals unless preventative measures are taken.

3. Dry gas seal - Wikipedia

   en.wikipedia.org/wiki/Dry_gas_seal

   The first dry gas seal for a compressor was patented by Kaydon Ring & Seal in 1951 when it was known as Koppers Corporation. Field applications of dry gas seal designs were completed in 1952. The original patent was for Kaydon's "Tapered Ramp" lift geometry, a constant diameter / variable depth dynamic lift design. From that first dry gas seal ...

4. Environmental stress cracking - Wikipedia

   en.wikipedia.org/wiki/Environmental_stress_cracking

   Environmental Stress Cracking (ESC) is one of the most common causes of unexpected brittle failure of thermoplastic (especially amorphous) polymers known at present. According to ASTM D883, stress cracking is defined as "an external or internal crack in a plastic caused by tensile stresses less than its short-term mechanical strength".

5. Dry lubricant - Wikipedia

   en.wikipedia.org/wiki/Dry_lubricant

   Dry lubricants or solid lubricants are materials that, despite being in the solid phase, are able to reduce friction between two surfaces sliding against each other without the need for a liquid oil medium. [1] The two main dry lubricants are graphite and molybdenum disulfide. They offer lubrication at temperatures higher than liquid and oil ...

6. Volkswagen to recall over 114,000 US vehicles over airbag ...

   www.aol.com/news/volkswagen-recall-over-114-000...

   The recall consists of some Beetle and Passat vehicles from model years 2006-2019. "The driver's side frontal airbag inflator may explode due to propellant degradation occurring after long-term ...

7. Stress corrosion cracking - Wikipedia

   en.wikipedia.org/wiki/Stress_corrosion_cracking

   Stress corrosion cracking (SCC) is the growth of crack formation in a corrosive environment. It can lead to unexpected and sudden failure of normally ductile metal alloys subjected to a tensile stress, especially at elevated temperature. SCC is highly chemically specific in that certain alloys are likely to undergo SCC only when exposed to a ...

8. How Bad Is It to Use an Egg With Cracks in It? - AOL

   www.aol.com/bad-egg-cracks-130000804.html

   According the USDA, it is not safe to use eggs that have cracks. The simple reason is that "bacteria can enter eggs through cracks in the shell," most commonly salmonella.

9. Zion Williamson out indefinitely after being diagnosed with ...

   www.aol.com/sports/zion-williamson-reportedly...

   New Orleans Pelicans star Zion Williamson has suffered yet another major setback. The Pelicans announced Saturday the 24-year-old forward has been diagnosed with a left hamstring strain and will ...