Silicon carbide ramming mass is a bulk material made of silicon carbide, графит, и электрокальцинированный антрацит в качестве сырья, mixed with a variety of ultrafine powder additives, и плавленый цемент или композитная смола в качестве связующего вещества.. It is used to fill the gap between the furnace cooling equipment and the masonry or as a filler for the masonry leveling layer.
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Physical and chemical indicators of silicon carbide ramming material
проект | 指标 | ||
SC30 | SC50 | ||
SiC % | ≥30 | ≥50 | |
Bulk density g/cm3 | ≥2,5 | ≥2,6 | |
Кажущаяся пористость % | ≤18 | ≤18 | |
Прочность на сжатие при нормальной температуре МПа | 110℃×24ч | ≥60 | ≥80 |
1100℃×3ч | ≥100 | ≥120 | |
Heating permanent line change % 1400℃×3h | ±0,3 | ±0,2 | |
Wear resistance cm3 | ≤6 | ≤4 |
Characteristics of silicon carbide ramming mass
- Excellent chemical stability and acid and alkali corrosion resistance
- Excellent high-temperature resistance and wear resistance, able to withstand extreme temperature and wear conditions.
- Высокая теплопроводность, effectively conducts heat and improves equipment thermal efficiency.
- Strong compressive strength, reaching ≥60 MPa and ≥80 MPa at 110℃ respectively.
5 Отличная износостойкость, extending equipment service life.
Application of silicon carbide ramming mass
- High-temperature equipment in the power industry; such as boilers and reactors.
- High-temperature equipment in the metallurgical industry; such as furnaces and kilns.
- Large high-temperature reactors and piping systems in the chemical industry.
Sic ramming mass production ratio
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- Порошок карбида кремния is the main component that provides hardness and durability to the ramming material.
- связующее: Commonly used binders include resins, ceramic binders, и т. д., which are used to bond silicon carbide powder together and keep it in a certain solid form.
- Lubricant: Lubricants such as polyvinyl alcohol and beeswax are usually used to reduce the friction between silicon carbide powders and improve the fluidity of the ramming material.
- Mold release agent: used to apply to the ramming material mold to facilitate the smooth removal of the ramming material from the mold.
- Другие добавки: According to needs, some other additives, such as pigments, fillers, и т. д., can be added to improve the performance of the ramming material or meet specific needs
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