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Tempered or toughened glass is a type of safety glass processed by controlled thermal or chemical treatments to increase its strength compared with normal glass. Tempering puts the outer surfaces into compression and the interior into tension .
Specifies an extended address and port to which the server should connect. EPSV RFC 2428 Enter extended passive mode. FEAT RFC 2389 Get the feature list implemented by the server. HELP RFC 959 Returns usage documentation on a command if specified, else a general help document is returned. HOST RFC 7151 Identify desired virtual host on server ...
Safety glass is glass with additional safety features that make it less likely to break, or less likely to pose a threat when broken. Common designs include toughened glass (also known as tempered glass), laminated glass , and wire mesh glass (also known as wired glass).
Also unlike toughened glass, chemically strengthened glass may be cut after strengthening, but loses its added strength within approximately 20 mm of the cut. Similarly, when the surface of chemically strengthened glass is deeply scratched, this area loses its additional strength. Another negative of chemically strengthened glass is the added cost.
Glass fibers have a much higher tensile strength than regular glass (200-500 times stronger than regular glass). [7] This is due to the reduction of flaws in glass fibers [8] and the small cross sectional area of glass fibers, constraining maximum defect size. [2]
Float glass is a sheet of glass made by floating molten glass on a bed of molten metal of a low melting point, typically tin, [1] although lead was used for the process in the past. [2] This method gives the sheet uniform thickness and a very flat surface. [ 3 ]
In a monolithic Pd–Ag–P–Si–Ge glass alloy, the properties of high bulk modulus and low shear modulus lead to proliferation of shear bands. These bands are self constrained and the toughness is improved. [3] Metals can be toughened by improvement of processing. With a high affinity for oxygen, titanium alloy can absorb oxygen easily. [4]
Handheld glass breaker with a built-in seatbelt cutter.. A glass breaker is a hand tool designed to break through a window glass in an emergency. It is a common safety device found in vehicles to aid in the emergency extrication of occupants from a vehicle, as well as in some buildings.