What is fused cast refractories?
Fused cast refractories are manufactured by electro-fusing and casting process. After being poured molten material into molds, shrinkage voids occur in cooling and solidification process. The location of shrinkage voids is important for furnace design and is controlled by casting techniques as the following table.
What is AZS refractory?
Fused cast alumina-zirconia-silica (AZS) ma- terials are the preferred refractories for the furnace area in contact with the glass melt when melting soda-lime-silica glass. They are also used as sidewall material in the combustion chamber as well as crown mate- rial especially with oxygen fired furnaces.
What are refractories used for?
In the metallurgy industry, refractories are used for lining furnaces, kilns, reactors, and other vessels which hold and transport hot mediums such as metal and slag.
What is Electrocast?
A method of producing refractory materials in the desired form by mixing the raw materials in the requisite proportions, heating to fusion in an electric furnace, and then casting.
What is AZS block?
AZS Refractory Bricks & Blocks are produced from alumina powder, zirconia sand and additive. Zirconia content defines their corrosion resistance. AZS Fused Cast Refractories are the most widely used materials in glass melting furnaces, frit kilns and occasionally some foundry plants.
What are three different types of refractories?
Depending on temperatures and service conditions of the applications such as boilers, furnaces, kilns, ovens etc, different types of refractories are used.
- Fireclay refractories.
- Silica brick.
- High alumina refractories.
- Magnesite refractories.
- Chromite refractories.
- Zirconia refractories.
How many types of refractories are there?
Refractory comes in three common forms: molded, monolithic, and fiber.
Who is the owner of electrosteel?
You can view name of Chairman, CEO, CFO, Management Team, Board of Directors and Key Executives of Electrosteel Castings Ltd.
…
PREMARKET.
| Management | |
|---|---|
| Sunil Katial | WholeTime Director & CEO |
| Uddhav Kejriwal | Whole Time Director |
| Umang Kejriwal | Managing Director |
| Virendra Sinha | Director |
What are the properties of castable refractory?
Castable refractory properties:
| Name | High alumina castable | |
|---|---|---|
| Pressure resistance (MPa) | 1500℃×3h | >80 |
| Flexural strength (MPa) | 110℃×24h | >8.0 |
| 1500℃×3h | >12.0 | |
| Bulk density (g/cm) | 110℃×24h | 2.7 |
Is alumina neutral refractory?
Neutral refractories – Neutral refractories are chemically stable to both acids and bases and are used in areas where slag and atmosphere are either acidic or basic. The common examples of these refractories materials are carbon graphite (most inert), chromite refractories, and alumina refractories.
What does electrosteel mean?
Definition of electric steel
: steel refined in an electric furnace. — called also electrosteel.
How many types of castable are there?
The over 400 different types of castables comprise insulating castables, dense castables, low cement castables, self flowing castables, etc.
What is the density of castable?
Castable refractory properties:
| Name | Corundum castable | |
|---|---|---|
| Flexural strength (MPa) | 110℃×24h | >13.0 |
| 1500℃×3h | >15.0 | |
| Bulk density (g/cm) | 110℃×24h | 3.20 |
| 1500℃×3h | 3.20 |
How many types of refractory are there?
Based on fusion temperature, (melting point) refractory materials are classified into three types.
What is dip piping?
Definition of dip pipe
: a pipe that conveys hot coal gas from retorts in gas manufacturing and discharges through its turned-down upper end into a water seal or into a hydraulic main for removing solubles or condensable impurities.
What is the meaning of castable?
able to be cast; suitable for casting
adjective. 1. able to be cast; suitable for casting. 2. (of an actor) able or likely to be selected to play a part in a play, film, etc.
What is porosity in refractory?
In refractories, porosity is reported as “% apparent porosity”. Apparent porosity refers to the pores (or voids) connected to the surface, or open pores. The open pores directly affect properties such as slag resistance and permeability.
What is bulk density of castable refractory?
1200. 3. Bulk density after burnt at 110°C (g/cm )
Is HDPE an IPS or dips?
Yes, HDPE pipe is available both in iron pipe (IPS) and ductile iron pipe sizes DIPS), sometimes also known as cast-iron pipe sizes (CIPS). IPS sized HDPE pipe has the same outside diameter as black iron or carbon steel pipe. DIPS sized HDPE has the same outside diameter as cast/ductile iron pipe.
What is DN in HDPE pipe?
nominal outside diameter
Where dn is the nominal outside diameter of pipe and en is the nominal (minimum) wall thickness of the pipe.
What is castable material?
Castable refractory products are non-metallic materials with physical and chemical properties that allow them to withstand high temperatures and retain their composition. Some of their common application is in furnaces, kilns and boilers.
What is cast example?
transitive verb. 1a : to cause to move or send forth by throwing cast a fishing lure cast dice. b : direct cast a glance. c(1) : to put forth the fire casts a warm glow cast light on the subject cast a shadow. (2) : to place as if by throwing cast doubt on their reliability.
What causes refractory failure?
The most common cause for failure of refractory is chemical reaction with the environment in which it is operating and chemical corrosion from molten slag and hot gas/molten salt. Chemical corrosion of a refractory is caused by slag attack at the refractory surface.
What is the density of refractory?
Refractory-Material, Insulating Bricks, Thermal Blankets
| Products | Veneering Modules | Braided Rope |
|---|---|---|
| Density (Kg/m3) | (1) & (2) 160 | (1) 200-500 (2) 225-600 Depending on Diameter |
| Thermal Conductivity (W/mK) (at mean temperature of 600°C) depending on density | (1) 0.150 (2) 0.130 |
Whats the difference between IPS and dips?
IPS pipe has an inside diameter of six inches. Ductile Iron Pipe Size or DIPS is used to specify the size of ductile iron pipe. Typically, IPS refers to black iron or carbon steel pipe while DIPS refers to cast/ductile iron pipe.