We will give back the support and love from all walks of life with high quality Acid resistant brick for flue in steel works, Magnesium Oxide Foam Ceramic Filter for casting alloy, Tin bath hole brick. We hope we can create brilliant career together. We always adhere to people-oriented, deeply concerned about the safety and health of employees, and strictly follow relevant laws, regulations and standards to implement the main responsibility of the enterprise. We value efficient coordination in all aspects, including corporate culture management, brand promotion, marketization and international competitiveness. We will continue to develop and introduce excellent technology and equipment abroad to create a better tomorrow. We adhere to the product design principle of 'professionalization and practicality', wholeheartedly provide domestic and foreign enterprises with a complete set of application solutions and perfect services.
1,Characteristics of Spinel Brick:
A,Good thermal shock resistance.the main mineral phases of the products are periclase (MgO) and magnesia-alumina spinel (MgAl2O4).the expansion coefficients of the two are different,solid state reaction at high temperature,a small crack and a pore are formed between the two,these tiny cracks and micro-pore can absorb energy and prevent the damage of the product when they are subject to stress and temperature changes in the use process. Therefore, the thermal shock resistance of the product is good.
B,Good volume stability.there is no iron in the product, and it does not react with carbon monoxide produced by fuel, resulting in volume shrinkage or expansion.therefore,there is no volume change effect in the product.
C,High temperature resistance.the product has low SIO2 content, so there are few silicate minerals with low melting point.they are all composed of minerals with high melting point, so they have good high temperature resistance.
D,Strong resistance to erosion.the main components of the product are periclase and magnesia-alumina spinel, and the silicate phase is very few, so the alkali corrosion resistance is strong.
E, There is no chromium in the product.it is an environmental protection product.
2,Outline of Spinel Brick: The product is made of high-grade magnesia and synthetic magnesia-alumina spinel as main raw materials, with binder added, by high-pressure forming and high-temperature firing (>1700℃). the main crystalline phases of the product are periclase and magnesia-alumina spinel.
3,Application of Spinel Brick: Cement kiln, lime kiln, glass kiln, hot air kiln and other industrial kiln equipment.
4,Index:
Item | JMA-5 | JMA-10 | JMA-15 |
MgO %≥ | 85 | 80 | 80 |
Al2O3 % | 5-7 | 8-10 | 15-17 |
Apparent Porosity % ≤ | 18 | 18 | 17 |
Cold Crushing Strength Mpa ≥ | 40 | 40 | 40 |
Refractoriness Under Load(T0.6℃) ≥ | 1620 | 1650 | 1650 |
Thermal Shock Resistance≥ | 6 | 8 | 10 |
Bulk Density (kg/m³)≥ | 2900 | 2900 | 2900 |
5, (1),Production process
A,Mixing:select various granularity raw materials,carry out rational grading and proportioning,put the coarse and medium materials into the mixing machine and stir for 3-5 minutes,put in the binder and stir for 5-8 minutes,finally, add the fine powder and stir for 20-30 minutes.
B,Forming:select of reasonable brick press moulding,the unit weight of brick is ≤5 kg,choose a brick machine of less than 300 tons,the unit weight of brick is＞5 kg,select 400-630tons brick machine,the unit weight of brick is ＞30kg,select the 1000tons brick machine.
C,Dry:Pushing the formed green brick into the drying hole,orderly drying is carried out, so that the moisture content of the green brick is controlled below 1.0%.
D,Firing:The dried qualified products should be installed in accordance with the kiln loading method and reasonably matched,brick billet is sintered in the control of reasonable firing curve.
E,Picking, packaging, shipping:After the product is out of the kiln, the products are picking according to the product quality requirements, the qualified products are packaged reasonably, and the packaged products are stored in the warehouse, waiting for shipment.
(2),Storage:Products stored in ventilated, dry and rainproof environment for more than 12 months.
(3),Provide samples free of charge for user inspection
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6.Good feedback of product use effect,the products have been exported to South Korea, Japan, Pakistan, Russia, Australia, Oman, the United States, Kenya, Mexico, Morocco and India.
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 refractory 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 are committed to the development of domestic products, provide high-quality Low Thermal Conductivity Magnesia Spinel Brick for domestic and international markets, and have formed large-scale production. Our professional strength and the concept of customer responsibility to help customers grow up and grow together with them. Our company is customer-oriented, pays attention to the 'people-oriented' management philosophy, and strives to provide customers with safe and reliable products.
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