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A seal is a device or material that helps join systems, mechanisms or other materials together by preventing leakage (e.g. in a pumping system), containing pressure, or excluding contamination. The effectiveness of a seal is dependent on adhesion in the case of sealants and compression in the case of gaskets .
A gasket is a mechanical seal which fills the space between two or more mating surfaces, generally to prevent leakage from or into the joined objects while under compression. [1] It is a deformable material that is used to create a static seal and maintain that seal under various operating conditions in a mechanical assembly.
Indeed, many gas turbine engine seals leak by design. [4] Labyrinth seals are also found on pistons, which use them to store oil and seal against high pressure during compression and power strokes, as well as on non-rotating shafts. In these applications, it is the long and difficult path and the formation of controlled fluid vortices plus some ...
An example of a diaphragm seal (in green) used to protect a pressure sensor. In mechanical engineering , a diaphragm seal is a flexible substance that seals and isolates an enclosure. The flexible nature of this seal allows pressure effects to cross the barrier but not the material being contained.
Induction sealing is the process of bonding thermoplastic materials by induction heating.This involves controlled heating an electrically conducting object (usually aluminum foil) by electromagnetic induction, through heat generated in the object by eddy currents.
Heat seal connectors are used to join LCDs to PCBs in many consumer electronics, as well as in medical and telecommunication devices.. Heat sealing of products with thermal adhesives is used to hold clear display screens onto consumer electronic products and for other sealed thermo-plastic assemblies or devices where heat staking or ultrasonic welding are not an option due to part design ...
The Collection is a box set by American rock band Toto.It consists of the band's first seven albums on CD, and a DVD of Greatest Hits Live and More (released in 1992 on VHS under the title Toto Live, then on DVD in 2002), a concert recorded at Le Zénith, Paris, in October 1990.
Toto IV is the fourth studio album by American rock band Toto, released on April 8, 1982, by Columbia Records. [8] The album's lead single, " Rosanna ", peaked at number 2 for five weeks on the Billboard Hot 100 charts, while the album's third single, " Africa ", topping the Hot 100 chart, became the group's first and only number 1 hit. [ 9 ]