Porous plug and Seat well block
Ladle Porous Plug can be made of a slit type which is composed of a permeable core, a seat brick and a high quality fire mud, The main quality of the porous plug and Seat well block are chrome-corundum and corundum-spinel. Adopting tabular alumina, emery, chromium oxide green and magnesium alumina spinel as main raw materials, using cement as binder to produce directional slit porous plug, which has the advantages of structural stability, high air permeability, strong corrosion resistant and long service life etc. Due to the heat-replaceable replacement of the venting core, it is flexible in use and can be used in various refining conditions. It can be applied to the bottom argon blowing process of steel mill LF, LF-VD, CAS-OB refined ladle and continuous casting ordinary ladle.
Porous plug is a new product with high lifespan, energy saving and consumption reduction. The structural design is reasonable, with good thermal stability, erosion resistance, and permeability resistance. It has high blow-through rate, safe and reliable operation, and long service life.Mainly used for steel-making ladle, base and other parts.
Seat well block is a refractory brick built at the bottom of the steel drum and fixing the nozzle brick. Its shape is square, so it is also called square brick. The function is to fix the position of the nozzle；it is easy to disassemble and install the nozzle; support the lower end of the plug rod when pouring; after pouring, ensure that the plug rod slides toward the nozzle along the arc surface to cut off the injection flow. The material of the seat block can be clay, high aluminum or non-burning high aluminum.It has high corrosion resistance and is used in conjunction with zirconium sizing nozzles. It has the advantages of no deformation and no cracks.They are mainly used for continuous casting tundish and nozzle.
Features
Good thermal shock property
Anti-erosion, and impermeable
Higher purging rate
Longer service life
Higher safety level
Less pollution
Applications
steel ladle,refining ladle,electric furnace refining ladle
Physical And Chemical Indicators
| Brand Properties |
Porous plug | Seat well block | |||
| CC-94 | CS-94 | CC-94 | CS-94 | ||
| Bulk Density (g/cm3) | 3.00 | 3.10 | 3.00 | 3.10 | |
| Cold Crushing Strength (MPa) | 90 | 100 | 90 | 100 | |
| Thermal Shock Resistance water（times）
|
12 | 12 | 12 | 12 | |
| Modulus of Rupture(MPa) | 17 | 20 | 17 | 20 | |
| 0.2-1.0MPa Air permeability (N/min) | 200-650 | 200-650 | 200-650 | 200-650 | |
| Chemical Composition (%) | Al2O3 | 90-92 | 90-92 | 90-92 | 90-92 |
| Cr2O3 | 4-7 | 4-7 | |||
| MgO | — | 4-7 | — | 4-7 | |
| Main Applications | Steel and Iron ladle
Tundish |
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