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  2. 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.

  3. 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 ...

  4. Fire brick - Wikipedia

    en.wikipedia.org/wiki/Fire_brick

    A fire brick, firebrick, fireclay brick, or refractory brick is a block of ceramic material used in lining furnaces, kilns, fireboxes, and fireplaces. A refractory brick is built primarily to withstand high temperature, but will also usually have a low thermal conductivity for greater energy efficiency .

  5. 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.

  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. Large panel system building - Wikipedia

    en.wikipedia.org/wiki/Large_panel_system_building

    Brand new Hanseatic-themed WBS 70 panel buildings in Rostock-Stadtmitte (September 1986) In East Germany, large panel system-building areas have been designated as Neubaugebiet ("New development area"). Virtually all new residential buildings since the 1960s were built in this style, as it was a quick and relatively inexpensive way to curb the ...