refractory - gambar
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7/27/2019 Refractory - Gambar
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Contoh-contoh
kegunaan refraktoriseramik
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Alumina
• A high purity alumina mix, it has good
resistance to both acidic and basic slags.• It is the workhorse for a wide range of
alloys and melting applications; commonly
used for air melting furnaces but can also
be used in a vacuum melting application.
• Maximum service temperature 1800°.
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Chrome Alumina• The small addition of chrome in the
alumina improves the resistance to slagattack and greatly improves the longevity
of refractory life.
• Ideal for air melting applications, but notrecommended for vacuum melting
applications.
• Maximum service temperature 1800°C.
Magnesia Stabilised Zirconia
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Magnesia Stabilised Zirconia
• Stabilised with magnesia to prevent volumechanges, it has an excellent resistance to acidic
slags.• It is unaffected by Ni, Mo, Al, Fe, Pb and has
good resistance to Zr and Be.
• Widely used in vacuum melting applications for the melting of superalloys, this material exhibitssuperior resistance to thermal shock anderosion.
• It has low thermal expansionproperties. Maximum service temperature1900°C.
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Lime Stabilised Zirconia• Stabilised with lime to prevent volume changes,
ideal for high temperature applications and for
use with platinum group metals.• Our lime stabilised zirconia products are
specially designed to counteract the glassy or siliceous slags produced when melting platinumalloys.
• It has excellent thermal shock properties anddisplays a superior resistance to spalling and
erosion.• Maximum service temperature 2000°C.
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Magnesia• Has very good resistance to basic slags
and is widely used in vacuum meltingapplications for the melting of superalloys.
• It is non-wetted by Ni, Co and Fe based
alloys.
• Less dense than zirconia and preferred by
some customers for X-ray analysis.• Maximum service temperature 1700°C.
Mullite
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Mullite
• This material has excellent thermal shock
properties; it has good abrasion and wear resistance with most alloys.
• It is not recommended for acidic slags and
elevated temperatures.• An ideal material for furnace bricks,
element carriers and parts demanding
good hot loading durability.• Maximum service temperature 1700°C.
Zircon
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Zircon
• Contains high strength and good
resistance to thermal shock properties dueto a dense structure and increased silica
content, good resistance to acidic slags
and is commonly used for non-ferous andprecious metal melting applications.
• Maximum service temperature 1650°C.
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Silicon Carbide• An extremely dense material with superb
thermal shock properties.• Highly resistant to metal penetration and
non-wetted by non-ferrous alloys.
• The workhorse for non-ferrous metals in
air melting applications.
• Maximum service temperature 1400°C.
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Fused Silica• A light material providing excellent thermal
shock properties and extreme volumestability at elevated temperatures.
• Commonly used for 'one shot liners' with
superalloys in a vacuum furnaceapplication.
• Maximum service temperature 1650°C
CERABLANKETS/CERACHEM
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CERABLANKETS/CERACHEM
BLANKETS Furnace, Kiln, Fired Heaters,
Hydrogen Reformer linings.
Also insulation of Steam andGas Turbines, investment
casting moulds, reusable
insulation for field stress
relieving, fire protection and
acoustic insulation at hightemperatures.
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VENEERING MODULES Hot face veneering for existing
Furnaces , Kilns and Heaters
where the lining is in a
reasonably good condition anddoes not require immediate
replacement .
Veneering offers reduction inheat loss, leading to fuel
savings.
Further, the life of refractorylining is extended due to
protection offered by ceramic
fibre.
O & S S
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BOARD & SHAPES
Hot face lining in laboratorytype and other smallFurnaces & Kilns .
Hot face linings of LTM kilncars.
Combustion chamber linings.
Aluminium handlingapplications.
Back up insulation in glass
tanks, aluminium Furnacesand ceramic Kilns.
Backup installation in steel
ladles.
CLOTHS TAPES & ROPES
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CLOTHS, TAPES & ROPES
Cloth is used as thermal
curtains, welding
curtains Tape andrope are used for
inspection door seals ,
gaskets, flange seals.expansion joints, pipe
lagging, cable
protection etc .
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• Furnace Components
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• Blankets
Ceramic fiber, Soluble fiber, Silica
• Boards & Block InsulationCeramic fiber, Soluble fiber,Mineral fiber, Calcium Silicate
• High Alumina Continuous Ceramic
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High Alumina Continuous Ceramic
Fiber TextilesCloth, Tape, Sleeving, Yarn
• Ropes, Braids, Sleevings
Ceramic fiber, Silica
• Cloth & TapesCeramic fiber, Silica
• Fabricated TextilesFurnace Curtains Welding Blankets Custom
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Furnace Curtains, Welding Blankets, Custom
Gaskets
• PapersCeramic fiber, Silica,Mineral fiber, Soluble fiber
• Starflow Refractory Patch
• Cements, Coatings, Patches