Hannifin's Texfluor PTFE tubing is chemical and corrosive resistant and is
available in sizes .010 to 4 inch O.D.
PTFE, in many cases, is used to
replace glass, rubber and stainless steel because of its corrosion resistance. It
is extremely resistant to the most highly corrosive chemicals such as aqua
regina, hydrofluoric acid and hydrogen peroxide. Only molten alkali metals,
such as sodium or potassium, chlorine trifluoride and gaseous fluorine at
elevated temperatures and pressures will attack PTFE chemically. In addition,
there is no solution that will swell or dissolve PTFE at temperatures below
300C/570F. Only at temperatures above 327C/620F, PTFE's crystalline melting
point, will some fluorinated lubricating oils swell PTFE.
Texfluor PTFE tubing is odorless, tasteless, non-wetting and non-leaching. Other
advantages are PTFE's ease in cleaning, anti-stick properties, resistance to
extreme heat and cold and resistance to ultra violet rays. Vibration damping
properties of PTFE are also useful in both sonic and ultrasonic frequencies.
During a teardown of the iPad Air and Microsoft Surface Pro 3 at the Medical Design & Manufacturing Show in Schaumburg, Ill., an engineer showed this "inflammatory" video about the dangers of maliciously mishandling lithium-ion batteries.
The Window Watcher stops the burglar before he does damage or enters the house. House alarm service companies set off alarms and call the service only after the burglar has damaged and entered the house.
If you’re designing a handheld device or industrial machine that will employ a user interface, then you’ll want to check out the upcoming Design News Continuing Education Center course, "Engineering Principles Behind Advanced User Interface Technologies.”
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.