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1.Description:Magnesium aluminum refractory ball is an improvement in the production process of magnesium refractory ball. Magnesium oxide and bauxite are loaded into a ball mill according to the scientific ratio and ground together. Magnesium aluminum spinel is formed in the process of high-temperature sintering, and the sintering temperature is generally about 50 ℃ higher than that of magnesium ball. The product has excellent thermal shock stability, high mechanical strength, high load softening temperature, good slag resistance, especially good resistance to alkaline slag and alkaline atmosphere erosion. It is not easy to break into slag and block on the ball bed, which affects the heat storage effect
The product is applied to the high-temperature area on the upper part of the ball bed, and can be used for a long time under the temperature of 1350-1400 ℃. Compared with high aluminum balls, the product has superior high-temperature performance, especially its heat storage capacity and service life. Practice has proved that the product with a diameter of 80-90mm has good heat transfer effect, reduces the bed resistance, increases the hot air pressure and air supply temperature, creating favorable conditions for the ball bed to store or release more high-temperature heat
2. Features of Magnesia alumina refractory ball:
1) High mechanical strength
2) Strong corrosion resistance, especially alkali slag corrosion resistance
3) Good thermal shock stability
4) High temperature resistance, better than high aluminum fireball
5) Non stick ball
3.Application of Magnesia alumina refractory ball: mainly used in the upper section of ball bed of ball or hot blast furnace
4. Specification:φ50~90mm
5.Main performance parameters
ITEM MLQ-85 | UNIT | TECHNICAL INDEX |
MgO | % | ≥85 |
Al2O3 | % | 5-10 |
Porosity | % | ≤19 |
Density | g/cm3 | 2.9-3.05 |
Compressive strength | Mpa | ≥180 |
Thermal shock stability 950℃,air cooling | times | ≥25 |
Refractoriness under load | ℃ | ≥1550 |
Reheating linear change rate | % | 1500℃*3h,±0.2 |
6.Good feedback of product use effect,the products have been exported to Brazil, Morocco and Iran.
7.We are a professional supplier, who can provide customers with free product technology, use and other issues.
Do you want to find a professional supplier of Magnesia Alumina Refractory Ball products?
Do you want to find a stable and credible supplier?
Then please contact with us
Contact me:Email:wp@cnjingganrefractory.com/sdwenping@163.com
TEL: 86-0533-4188518 / FAX: 86-0533-4188518
Rose:+86-13275332819(wechat/whatsapp number)
We will give back the support and love from all walks of life with high quality Ladle Refractories Magnesia Alumina Carbon Brick. We hope we can create brilliant career together. We are based on honesty, adhering to the tenet of survive by quality, developing by innovation, and always regarding the needs of consumers as the starting point and foothold of the troupe. Our company will adhere to 'Quality first, , perfection forever, people-oriented, technology innovation'business philosophy.
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