firebrick


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firebrick,

brick that can withstand high temperatures, used to line flues, stacks, furnaces, and fireplaces. In general, such bricks have high melting points that range from about 2,800°F; (1.540°C;) for fireclay to 4,000°F; (2,200°C;) for silicon carbide. They also should resist the chemicals in slags and not spall, i.e., flake under wide temperature changes. Clay bricks of fireclay or kaolin are common. Silica has good strength at high temperatures, but since it spalls, it is used in furnaces that remain hot continuously. High alumina bricks can stand high temperatures and high loads. To withstand alkalis there are magnesite bricks. Firebricks are not good insulators. A special insulating firebrick of highly porous fireclay or kaolin has low conductivity and low heat content but a melting point of only about 1,600°F; to 2,800°F; (870°C;–1,540°C;). It makes a thin, light wall that saves fuel because it heats quickly. A separate layer of insulating material backs up other kinds of firebrick. Refractory mortar binds firebricks together. Additional support comes from metal anchors projecting from the metal casing. Special coatings give bricks extra protection from slags and dust-laden gases. Plastic or castable mixes are used for repairs or special shapes.

firebrick

1. Brick made of a ceramic material which will resist high temperatures; used to line furnaces, fireplaces and chimneys. See also: Brick
2. Brick made of a ceramic material which will resist high temperatures; used to line furnaces, fireplaces and chimneys.

firebrick

[′fīr‚brik]
(materials)
A refractory brick, often made of fireclay, that is able to withstand high temperature (up to 1500-1600°C) without fusion; used to line furnaces, fireplaces, and chimneys.

firebrick

a refractory brick made of fire clay, used for lining furnaces, flues, etc.
References in periodicals archive ?
The material being mined is fused, worn and damaged smelter furnace firebrick which had been tossed away over the past 60 years.
Alistair Lawrence of Firebrick Brewery serves MP Dave Anderson a pint of Blaydon Brick ale
the kiln manufacturer, has just added a third CNC computer-controlled firebrick router to their factory in Mesquite, Texas.
Bob Wright, Managing Director at Firebrick and founder of the renowned high-tech marketing consulting firm, Marketing Arts
Standard features include heavy gauge sheet metal construction; horizontal swing door for easy opening; low-watt density coil-wound heating elements mounted in easy-to-replace side panels; lightweight firebrick insulation for reduced heat loss; hearth plate to protect floor brick and support workload; time proportioning digital controller mounted in separate control panel; and safety microswitch to shut off heating elements when door opens.
The Renaissance Front-Loading Kiln includes L&L's hard ceramic element holders for safety, firebrick lining durability, and heavy-duty elements on the door for even heating.
Both versions of the EZ Beader have ceramic fiber insulation walls and roof and an insulating firebrick bottom.
Pete Satre, Allied Mineral Products/Chicago Firebrick
The Minimalist installation thus induced an experience of depthlessness, the ungroundedness of the copy without an original--not 155 firebricks, as Gehry puts it, but "firebrick, firebrick, firebrick, firebrick.
You can build an outdoor fireplace with a prefabricated metal firebox (often called a "zero clearance" fireplace) or with concrete blocks and firebrick.
This Firebrick technology creates a seamless firebox that generates up to 15 percent more radiant heat than its metal counterparts.