vinyl-jacketing compounds from Teknor
Apex Company withstand the harsh cold, exposure to lubricants
and other challenging conditions encountered by control and power cables within
the nacelles high atop wind turbine towers.
Flexalloy 9609-80 is
an 80 Shore A PVC-based elastomer that provides long-term UV resistance and exhibits
a brittle point of -60C.
Apex N-56001 is a 76 Shore
A blend of PVC and nitrile rubber that provides long-term low-temperature
flexibility and oil resistance. It exhibits a brittle point of -54C.
Both compounds pass
required tests for UV resistance, 60-day oil aging at 75C and flammability
performance as specified in UL 1685-F4. The two compounds are rated at 105C for
maximum continuous operating temperature.
NASA and Boeing developed a huge, carbon composite cryogenic fuel tank for deep space missions, and started testing it last month. The 18-ft cryotank will enable heavy-lift launch vehicles to send both humans and robots into deep space.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.