Refractory Nozzle
Zhengzhou Caihua Kiln Masonry Installation Co.,Ltd. is professional manufacturer of fire bricks, Mortar, Pre-cast, Pre shape, Insulation products, Castable, Functional Products for Iron & Steel, Cement, Glass, Power & Petrochemical Industries. Our refractory nozzle includes refractory ladle nozzle, tundish nozzle, zirconia nozzle, zirconium sizing nozzle, etc. Refractory nozzle is a refractory material product used for high-temperature molten metal (such as molten steel, molten iron) or non-metallic melt flow control, usually installed in the outlet or sliding nozzle system of metallurgical equipment (such as ladle, converter, tundish).
Why Choose Us?
Rich Experience
CH Refractories with 40 years production and 15 years exporting experience to provide customers full supporting.
Professional Team
The company has 120 employees, including 20 professional engineers, who can provide professional product design and technical support.
Advanced Equipment
The company is equipped with two 1000-ton brick machines, ten 630-ton brick machines, two 180-meter high-temperature tunnel kilns, as well as a complete set of equipment for testing physical and chemical properties.
Broad Market
Products are exported to Germany, Korea, Indonesia, Pakistan, Malaysia, Saudi Arabia, Egypt, Russia, Uzbekistan and other countries.
Zirconia Nozzle
CH Refractories manufactured zirconia nozzle plays the role of controlling the uniform and stable flow of molten steel from the tundish to the mold, stabilizing the casting speed, and maintaining the height of the liquid level in the mold, use for continuous casting of steel.
Zirconium Sizing Nozzle
Zirconium sizing nozzle plays the role of controlling the uniform and stable flow of molten steel from the tundish to the mold, stabilizing the casting speed, and maintaining the height of the liquid level in the mold. Made of stabilized zirconia and imported natural oblique zircon after being stabilized by a special process.
Specifications of Refractory Nozzle
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Inner core |
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Brand |
CH-DJX |
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/ |
X1 |
X2 |
X3 |
X4 |
X5 |
X6 |
X7 |
X8 |
X9 |
X11 |
X12 |
X13 |
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ZrO2/% |
70 |
75 |
80 |
85 |
90 |
93 |
93 |
93 |
93 |
95 |
95 |
95 |
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Bulk density/g.cm3 |
3.8 |
3.9 |
4 |
4.1 |
4.3 |
4.5 |
4.7 |
4.9 |
5.1 |
5.1 |
5.2 |
5.5 |
|
Apparent porosity／％ |
22 |
22 |
20 |
20 |
20 |
20 |
18 |
15 |
13 |
13 |
10 |
8 |
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Themal shock resistance /cycle(1100℃water cooling) |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
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Coat |
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Brand |
CH-DJW |
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/ |
W1 |
W2 |
W3 |
W4 |
W5 |
W6 |
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Al2O3/% |
≥65 |
≥65 |
≥70 |
≥70 |
≥75 |
≥75 |
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C/% |
-- |
-- |
-- |
≥3 |
-- |
≥5 |
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Bulk density/g.cm3 |
≥2.3 |
≥2.6 |
≥2.6 |
≥2.7 |
≥2.7 |
≥2.85 |
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Apparent porosity／％ |
≤24 |
≤15 |
≤22 |
≤20 |
≤20 |
≤15 |
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Benefits of Using Refractory Nozzle
Improved safety
Refractory ladle nozzles are designed to withstand high temperatures, which reduces the possibility of accidents caused by molten metal spillage.
Improve efficiency
The refractory material ladle nozzle cools the refractory material, which helps to extend the service life of the liner. This in turn reduces downtime and maintenance costs for the steel plant.
Better control
Refractory ladle nozzles allow for better control over the flow of molten steel, resulting in more precise casting and less waste.
Materials of Refractory Nozzle
Aluminum carbon (Al₂O₃-C): High-purity alumina (Al₂O₃) is used as the main component, and carbon materials (such as graphite) are added to enhance thermal shock resistance and erosion resistance. Aluminum carbon nozzles are widely used in ladles and tundishes, and are suitable for casting ordinary carbon steel.
Aluminum zirconium carbon (Al₂O₃-ZrO₂-C): Zirconium oxide (ZrO₂) is added to aluminum carbon to improve resistance to high temperature erosion and thermal shock, and is suitable for high manganese steel or other special steel grades.
High-alumina: With high-alumina bauxite as the main raw material, it is suitable for low-requirement occasions or ordinary carbon steel casting, and has a low cost.
Magnesium-carbon (MgO-C): With magnesium oxide (MgO) as the matrix, carbon materials are added, suitable for high-alkalinity slag environment or special steel grades.
Fused quartz: Used for casting some low-carbon steel or non-ferrous alloys, it has good thermal shock resistance, but weak erosion resistance.
Composite materials: Such as composite nozzles with zirconium oxide core and high-aluminum outer layer, combining the advantages of different materials to optimize performance.
Application Industries of Refractory Nozzle
Iron and steel metallurgy
Ladle: The upper and lower nozzles are used at the bottom of the ladle, and cooperate with the sliding nozzle system to control the flow of molten steel to the tundish.
Tundish: The collecting nozzle and the immersed nozzle are used to transfer molten steel from the tundish to the crystallizer to optimize the continuous casting process.
Converter and electric furnace: Refractory nozzles are used for the steel outlet to withstand the erosion of high-temperature molten iron and slag.
Non-ferrous metal smelting
In the smelting of non-ferrous metals such as aluminum, copper, and magnesium, refractory nozzles are used for melt transmission and casting, such as guide nozzles in aluminum alloy casting.
Glass and ceramic industry
Refractory nozzles are used for the flow control of high-temperature glass or ceramic melts, and must have extremely high corrosion resistance and dimensional stability.
Other high-temperature industries
Such as garbage incinerators, chemical high-temperature reactors, etc., refractory nozzles are used to control the discharge or transmission of high-temperature fluids.
Certificate
Packaging & Shipping
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Packaging: |
Protective Film, Wooden Box, Pallet Package |
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Shipping: |
By Logistics; by Shipping; by Air. |
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Payment: |
Paypal, Western Union, T/T, L/C. |
We're well-known as one of the leading refractory nozzle manufacturers in China. Please rest assured to buy customized refractory nozzle at competitive price from our factory. Contact us for more cheap products.
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