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Capital Refractories Limited |  |
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Capital Refractories is one of the largest independent refractory companies in
the UK. Capital Refractories has been manufacturing, supplying and installing high quality refractory products to metal melters
for almost 50 years. Today, Capital Refractories' services to the metallurgical and thermal process industries operate
on a global scale, with clients in over 40 countries worldwide. |
Induction furnace linings Capital Refractories
specialises in supplying refractory linings and associated products to metal melting, foundry and cement  industries around the world. Capital Refractories manufactures a wide range of dry vibration rammable products for
lining coreless induction furnaces, vacuum coreless induction furnaces and channel induction furnaces for the melting of steel
and high temperature alloys, iron, copper, bronze, aluminium and masteralloys. These dry vibration induction furnace linings
include refractories based on alumina-magnesia spinel-forming systems, fused and dead-burnt magnesia-based systems, alumina
and alumino-silicate-based formulations. The dry vibration induction furnace rammables are supplemented by a wide range of
topping, ramming and patching refractories and other refractory products. Refractory
castables Capital Refractories also has an extensive range of castables , which can be supplied pre-cast and fired, for the metal melting, cement and other heat-processing industries. The castables
range include dense, insulating and gunnable medium cement castables, low cement castables and free-flow (self-flow) castables.
Capital Refractories also has a comprehensive range of non-wetting, aluminophobic and insulation castables specifically designed
for primary and secondary melting of aluminium. Crucibles Capital Refractories, from its state of the art factory in the Czech Republic, produces a wide range of specialist
shaped ceramics including iso-pressed crucibles and vibro-cast crucibles in alumina, chrome-alumina, magnesia, mullite, zircon
and zirconia. Capital Refractories also produces slip-cast one-shot liners based on silica or alumina for investment foundries.
The product range is further supplemented by a range of specialist shapes for a range of applcations such slide gate inserts,
ceramic core setters.
Gas diffusers and bottom pour ladle systems  Capital Refractories provides a range of products to improve cast quality such as the Unibore/Multicast
stopper and nozzle bottom pour system for ladles and auto pour which improves metal flow and quality as well as offering a
quick change nozzle for improved cleanliness or to easily change nozzle diameters. Another product to improve metal quality
is Capital Refractories' gas-permeable diffuser (also known as a porous or purge plug) which can significantly improve the
quality of both ferrous and non-ferrous metal in melting furnaces and ladles. Coreless Induction Furnaces: Steel
& High Temperature Alloys Capital Refractories offer a full range of coreless induction furnace lining, topping
and patching products for a wide range of steels and high temperature alloys. Area | Product Name | Product Description | Bonding | Max
service
temperature °C | Hot face dry rammed lining | Coral 85 | High
performance lining designed for large furnaces operating at high temperatures. | Ceramic | 1700* 1750† | Coral XL | General purpose lining with a wide melting
temperature range. | Ceramic | 1700* 1750† | Coral CXL | General purpose lining with a wide melting
temperature range. | Ceramic | 1700* 1730† | Coral SXL | High duty lining developed to withstand
elevated temperatures and retain a good level of powder at the back face. | Ceramic | 1700* 1750† | Coral SMC | Incorporates complex chromes for improved
slag resistance. | Ceramic | 1700* 1750† | Coral V40 | Magnesia-rich lining designed for vacuum
melting. | Ceramic | 1750* 1800† | Cormag 90 | Basic ramming mix for use in continuous
melting applications. | Ceramic | 1750 | Topping and spout material | Almacap | Silicate
bonded high alumina hard wearing rammable. | Chemical | 1650 | Capram 70 | Phosphate bonded high alumina plastic topping and repair mix | Chemical | 1700 | Toppatch | Silicate bonded alumino-silicate rammable.
| Chemical | 1600 | | Coral V40 DT | Dry topping for Coral V40. | Ceramic | 1750 | Coil Screed | Silkote 90 | Hydraulically bonded, high alumina
induction furnace coil screed. | Hydraulic | 1700 | Capscreed | Hydraulically bonded, high alumina induction furnace coil screed. | Hydraulic | 1680 | Repair materials | D10 Plaster | Alumino-silicate patching plaster. | Chemical | 1700 | D10F | A finer version of D10 Plaster. | Chemical | 1700 | D11 | High grade high alumina patching material. | Chemical | 1800 | | Capram 90F | High grade high alumina patching and topping material. | Chemical | 1800 | Castable material for lids,
bases and blocks | Silcast 1600 CM | Alumino-silicate multi-purpose castable. | Hydraulic | 1600 |
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