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Tempered hardboard is a hardboard that has been coated with a thin film of linseed oil and then baked; this gives it more water resistance, impact resistance, hardness, rigidity and tensile strength. An earlier tempering process involved immersing the board in linseed oil or tung oil until it was 5 to 6 percent saturated, and heating to 170 °C ...
Formica laminate was invented in 1912 by Daniel J. O'Conor and Herbert A. Faber, while they were working at Westinghouse, resulting in a patent filing on 1 February 1913. [1] [2] U.S. Patent No. 1,284,432 was granted on 12 November 1918. [3]
The infiltration rate is the volumetric flow rate of outside air into a building, typically in cubic feet per minute (CFM) or liters per second (LPS). The air exchange rate, (I), is the number of interior volume air changes that occur per hour, and has units of 1/h. The air exchange rate is also known as air changes per hour (ACH).
A continuous sheet of veneer coming out of a peeling rotary lathe. Veneer is obtained either by "peeling" the trunk of a tree or by slicing large rectangular blocks of wood known as flitches. The appearance of the grain and figure in wood comes from slicing through the growth rings of a tree and depends upon the angle at which the wood is ...
The stack effect or chimney effect is the movement of air into and out of buildings through unsealed openings, chimneys, flue-gas stacks, or other purposefully designed openings or containers, resulting from air buoyancy. Buoyancy occurs due to a difference in indoor-to-outdoor air density resulting from temperature and moisture differences ...
The most common dimension is 1.2 by 2.4 metres (3 ft 11 in × 7 ft 10 in) or the slightly larger imperial dimension of 4 feet × 8 feet. Plies vary in thickness from 1.4 mm to 4.3 mm. The number of plies—which is always odd—depends on the thickness and grade of the sheet. Roofing can use the thinner 16-millimetre (5 ⁄ 8 in) plywood.
Decorative laminate Roll and sheet of decorative laminate. Decorative laminates are laminated products primarily used as furniture surface materials or wall paneling.It can be manufactured as either high- or low-pressure laminate, with the two processes not much different from each other except for the pressure applied in the pressing process.
Formica is the type genus of the Formicidae, and of the subfamily Formicinae. [3] The type species of genus Formica is the European red wood ant Formica rufa. [1] Ants of this genus tend to be between 4 and 8 mm long. [4] Ants belonging to the Formica genus possess a single knob or bump located between their thorax and abdomen. These ants ...