| Refractoriness (℃): | 1770< Refractoriness< 2000 |
|---|---|
| Feature: | Instant Materials |
| Type: | Refractory Material |
| Shape: | Block |
| Material: | Alumina Block |
| Transport Package: | Wooden Case |
| Customization: |
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Stopper Rods
The Sinometal series of mono block stoppers include alumina-carbon type and magnesia-carbon type to suit for individual casting conditions.
A broad range of designs are available for stopper head or slag line, reliable and satisfactory performances have been achieved in decades of operations worldwide.
| Body | Head | |||
| Material | ASR | ASH | ASM | YS |
| Chemical analysis | ||||
| Al2O3 % | ≥45.0 | ≥55.0 | ≥75.0 | |
| MgO % | ≥60.0 | |||
| C+SiC % | ≥25.0 | ≥20.0 | ≤20.0 | ≥10.0 |
| Physical properties | ||||
| Bulk density g/cm3 | ≥2.36 | ≥2.44 | ≥2.50 | ≥2.70 |
| Apparent Porosity % | ≤17.0 | ≤19.0 | ≤18.0 | ≤17.0 |
| Cold Crushing Strength Mpa | ≥16.0 | ≥20.0 | ≥15.0 | ≥20.0 |
| Modulus of Rupture Mpa | ≥5.0 | ≥5.0 | ≥4.0 | ≥6.0 |
Fused Silica Stopper
| Chemiacl analysis | Physical properties | ||
| SiO2 % | Bulk Density g/cm3 | Apparent Porosity % | Cold Crushing Strength Mpa |
| ≥99 | ≥1.85 | ≤15 | ≥40 |
The Sinometal serial ladle shrouds are ISO-pressed Al2O3-C based products, featuring superior thermal resistance to erosion-corrosion, oxidation and thermal cycling, etc. They are easy to install and preheat is unnecessary. Sinometal has supplied ladle shrouds for decades of customers worldwide, proving reliable performances and long casting life.
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The Sinometal series of SENs are ISO-pressed products with special reinforcement at slag line. Sinometal SENs enjoy good reputation for excellent slag resistance, clog-proof, long life and safety etc. Sinometal has supplied SENs with fast-changeable system and SENs for thin slab casting for many customers worldwide, demonstrating reliable performance and long service life.
| Body | Al2O3 Anti-clogging | Slag line | Bowl | |||||
| Performance condition | Preheating | Non-Preheating | Argon | Non-Argon | Non-carbon | Z45 | ZSP | Material is same as the cooperative stopper |
| Chemical analysis | ||||||||
| Al2O3 % | ≥40.0 | ≥45.0 | ≥43.0 | ≥65.0 | ||||
| ZrO2 % | ≥35.0 | ≥75.0 | ≥65.0 | |||||
| C+SiC % | ≥25.0 | ≥20.0 | ≥20.0 | ≥15.0 | ≤8.0 | ≥11.0 | ≥15.0 | |
| MgO % | ≥18.0 | |||||||
| Physical properties | ||||||||
| Bulk Density g/cm3 | ≥2.25 | ≥2.36 | ≥2.10 | ≥2.58 | ≥2.65 | ≥3.5 | ≥3.3 | |
| Apparent Porosity % | ≤19.0 | ≤19.0 | ≤25.0 | ≤21.0 | ≤20.0 | ≤22.5 | ≤20.0 | |
| Cold Crushing Strength MPa | ≥19.0 | ≥20.0 | ≥10.0 | ≥18.0 | ≥18.0 | ≥16.0 | ≥16.0 | |
| Modulus of Rupture MPa | ≥6.0 | ≥6.0 | ≥3.0 | ≥3.0 |
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Sinometal series of high-temperature burned slide plates have the features of high strength, high erosion / corrosion resistance, excellent thermal shock resistance and long life etc.
They are used widely in large and medium-sized con-casting ladles and tundishes.
| Brand | Al2O3-ZrO2-C Slide Plate | MgO-Spinel Slide Plate | High Performance Slide Plate | |
| Al2O3 % Min. | 70 | 75 | 10 | 60 |
| C % Min. | 5 | 6 | 4 | |
| ZrO2 % Min. | 5 | 5 | 5 | |
| MgO % Min. | 80 | |||
| Apparent Porosity % Max. | 6 | 6 | 10 | 11 |
| Bulk Density g/cm3 Min. | 3.15 | 3.1 | 2.95 | 3.0 |
| Cold Crushing Strength MPa Min. | 100 | 100 | 70 | 95 |
| Modulus of Rupture MPa (1400ºC×0.5h) Min. | 18 | 13 | 7 | 10 |
| Application | Large or medium-sized con-casting tundish. | Calcium steel,killed steel, open steel etc. |
Tundish slide plate | |
Stopper system is normally used in tundish for con-casting of slab and bloom. Through adjusting the slot between the stopper and the upper nozzle, the steel flowing rate could be controlled. During the casting, there will be some erosion on the stopper and upper nozzle. So the quality of the upper nozzle is very important to tundish life.
The Sinometal series of upper nozzles with ZrO2 Insert feature high refractoriness, superior resistance to thermal shock, erosion/corrosion etc. Fitting together with Horton serial of ladle shroud, stopper and SEN, tundish casting sequences will be remarkablely improved. The products have been used in decades of steelworks worldwide, gain high customer satisfaction.
| Upper Nozzle-Insert | |||||
| ZrO2 % Min. | 64 | 69 | 79 | 93 | 94 |
| Bulk Density g/cm3 Min. | 3.6 | 3.7 | 3.9 | 4.3 | 4.3 |
| Apparent Porosity % Max. | 23 | 23 | 23 | 21 | 21 |
| Cold Crushing Strength MPa Min. | 80 | 80 | 80 | 100 | 100 |
| Refractoriness ºC Min. | 1790 | 1790 | 1790 | 1790 | 1790 |
| Upper Nozzle-Body | ||||
| Al2O3 % Min. | 65 | 75 | 65 | 80 |
| MgO % Min. | 10 | |||
| C % Min. | 3 | 3 | ||
| Bulk Density g/cm3 Min. | 2.3 | 2.4 | 2.9 | 3.0 |
| Apparent Porosity % Max. | 25 | 25 | 10 | 10 |
| Cold Crushing Strength MPa Min. | 60 | 60 | 40 | 60 |
To solve clogging problem occurred on conventional tundish upper nozzle and submerged entry nozzle, Sinometal developed porous upper nozzle serial products including fast-change type and normal type. The replacement of SEN may be done during casting when using Sinometal serial fast change porous upper nozzles, and longer tundish casting sequence is obtained. Sinometal has offered porous upper nozzles to a decade of steelworks, gaining high customer satisfaction.
| Al2O3 % Min. | 80 | 80 | 80 | |
| C+SiC % Min. | 10 | 10 | ||
| Bulk Density g/cm3 Min. |
1100ºC×24h |
3.15 | 3.1 | 3.15 |
| Cold Crushing Strength MPa Min. | 60 | 45 | 70 | |
| Modulus of Rupture MPa Min. | 12 | 10 | 15 | |
| Apparent Porosity % Max. | 10 | 16 | 15 | |
| Permeability % | - | 100 | - | |
Skimmer Block, Impact Pad and Well Block
Sinometal offers a wide range of precast shapes for tundish such as MgO-based or MgO-Al2O3-based skimmer blocks, impact pads and nozzle well blocks. Individual design is available to meet needs of specific operation condition. Sinometal series products feature high fired strength, superior resistance to erosion/corrosion, long service life.
| Al2O3 % Min. | 45 | 80 | 80 | 5 | - | |
| MgO % Min. | 33 | 6 | 4 | 80 | 85 | |
| SiO2 % Max. | 10 | 7 | 7 | 8 | 7 | |
| Bulk Density g/cm3 Min. | 110ºC×24h | 2.90 | 3.00 | 3.05 | 2.90 | 2.85 |
| Modulus of Rupture MPa Min. | 110ºC×24h | 10 | 3 | 5 | 7 | 10 |
| Cold Crushing Strength MPa Min. | 110ºC×24h | 60 | 20 | 35 | 50 | 58 |
| Linear Change % | 110ºC×24h | ±0.1 | ±0.1 | ±0.1 | ±0.1 | ±0.1 |
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