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  2. Refractories heat-up - Wikipedia

    en.wikipedia.org/wiki/Refractories_heat-up

    After building of a new refractory-lined industrial furnace or equipment, or refractory maintenance or relining of existing equipment, a necessary step is the start-up of the operation, which usually involves heating-up the unit in a controllable way, in order to prevent spalling or shortening of the materials' predicted lifetime.

  3. Cupola furnace - Wikipedia

    en.wikipedia.org/wiki/Cupola_furnace

    With acid refractory lined cupolas a greenish colored slag means the fluxing is proper and adequate. In basic refractory lined cupolas the slag is brown. When the operation is over, the blast is shut off and the prop under the bottom door is knocked down so that the bottom plates swing open.

  4. Fire brick - Wikipedia

    en.wikipedia.org/wiki/Fire_brick

    In the making of firebrick, fire clay is fired in the kiln until it is partly vitrified.For special purposes, the brick may also be glazed. There are two standard sizes of fire brick: 9 in × 4 + 1 ⁄ 2 in × 3 in (229 mm × 114 mm × 76 mm) and 9 in × 4 + 1 ⁄ 2 in × 2 + 1 ⁄ 2 in (229 mm × 114 mm × 64 mm). [2]

  5. Refractory lined expansion joint - Wikipedia

    en.wikipedia.org/wiki/Refractory_lined_expansion...

    A Refractory lined expansion joint is an assembly used in a pipe line to allow it to expand and contract [1] as climate conditions move from hot to cold and helps to ensure that the system remains functional. The refractory-lining can be vibra cast insulation with anchors, abrasion resistant refractory in hex mesh, gunned insulating refractory ...

  6. Ultra-high temperature ceramic - Wikipedia

    en.wikipedia.org/wiki/Ultra-high_temperature_ceramic

    Ultra-high-temperature ceramics (UHTCs) are a type of refractory ceramics that can withstand extremely high temperatures without degrading, often above 2,000 °C. [1] They also often have high thermal conductivities and are highly resistant to thermal shock, meaning they can withstand sudden and extreme changes in temperature without cracking or breaking.

  7. Refractory - Wikipedia

    en.wikipedia.org/wiki/Refractory

    Refractory bricks in a torpedo car used for hauling molten iron In materials science , a refractory (or refractory material ) is a material that is resistant to decomposition by heat or chemical attack and that retains its strength and rigidity at high temperatures . [ 1 ]