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Refractory Ramming Mass for Electric Furnaces
Refractory Ramming Mass for Electric Furnaces/High packing density and fast sintering speed/Good slag resistance and strong penetration resistance/Convenient construction
Summary:
Ramming Mass refers to an unshaped refractory material that is constructed by pounding (manually or mechanically) and hardened under heating above room temperature. Made by mixing refractory aggregates, powders, binders, additives, water or other liquids with a certain grading.
Product features:
Range of application:
Suitable for cold repair of AC electric furnace bottom, furnace slope, and DC electric furnace slope.
Technical data:
| Product Name |
Refractory Ramming Mass |
||
| Product Code | 1 | 2 | |
|
Chemical Composition(%) |
SiO2 | 1.5 | 1.2 |
| Al2O3 | 1.0 | 1.0 | |
| Fe2O3 | 5-7 | 5 | |
| CaO | 7-9 | 12 | |
| MgO | 83 | 80 | |
| Granularity(mm) | 0-6 | 0-5.0-6 | |
| Usage temperature(℃) | 1750 | 1750 | |
Packaging and Storage:
Wooden pallets+thermoplastic film packaging,size 100×80×70 mm and weighs about 1.4 tons /pallet ;Store in a dry, moisture-proof warehouse,storage period is 24 months.
Construction method:
Refractory Ramming Mass are generally compacted using pneumatic picks. When using a pneumatic pick to compact, the wind pressure should not be lower than 5 atmospheres; The hammer head has various shapes such as square, rectangle, and circle, with a general size between 50-80 millimeters. If it is too large, the compaction force is insufficient, the compactness is poor, and it affects the performance of refractory compaction materials; If it is too small, the pounding force will be too strong, making it difficult to compact and affecting work efficiency.
When pounding, the thickness of the material should be 20-60 millimeters each time. The air pick should be perpendicular to the material surface, and the hammer head should move continuously in one direction. The hammer heads should overlap by one-third to one-half to avoid leakage, and each row should also overlap. After each layer of material is continuously pounded four or five times to achieve uniform density and form a whole, the next layer of material can be laid.
The compaction construction should be carried out continuously. If the interruption time is long, the compaction surface should be covered tightly. During further construction, the tamping surface should be roughened before proceeding with tamping.
After pounding, the mold can be immediately removed for maintenance or baking.
YuDa’s Expertise
Beijing Yuda's main business includes refractory materials, insulation materials, wear-resistant materials, metal materials, and provides refractory material diagnosis, design, research and development, manufacturing, construction, and maintenance services. For many years, we have been committed to providing our customers with the highest quality products, the most comprehensive services, and the most accurate solutions, saving them time, effort, and money, and ensuring the stable operation of high-temperature kilns. At the same time, we can also provide engineering general contracting services such as refractory material selection, design, installation, and maintenance, optimize refractory material configuration, improve the synergy between refractory materials and processes, increase kiln operation rate, and provide you with comprehensive nanny style services.
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If you have any questions, please feel free to contact us and we will be happy to serve you, thank you for your support.Yuda has always adhered to the development philosophy of "serving needs and creating value", based on national strategy, and serving global customers.
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We look forward to assisting you with your refractory needs and providing you with the best solutions for your industrial applications.