How to choose furnace magnesia carbon bricks? What should be paid attention to in the procurement process | Justhigh refractory

Magnesia carbon brick is a kind of unfired refractory brick, which is used in the metallurgical field. It is well known that the melting containers in the metallurgical steel industry include ladles, converters(BOF), electric arc furnaces(EAF), and other refining furnaces, and these smelting metallurgical equipment require the support of refractory materials. As the front-end work of metallurgical smelting, the selection of refractory materials is particularly important. Refractory engineers are required to develop a set of refractory solutions based on actual working conditions, and select high-quality amorphous refractory materials, refractory bricks and refractory products as the lining of the furnace. In order to meet the high-temperature working environment of 1600-1700 degrees Celsius, the lining structure of the furnace is very complex and can be roughly divided into permanent layer, working layer and insulation layer. 

Magnesia carbon bricks are common refractory materials in the metallurgical industry. Their quality directly affects the service life and production costs of users, and even safety. The procurement process of magnesia carbon bricks requires buyers and suppliers to confirm the actual working conditions of the furnace, the use of magnesia carbon bricks, brick drawings and masonry plans (vertical masonry and horizontal masonry). Excellent refractory engineers will develop a complete set of refractory solutions and refractory brick product solutions for buyers based on their actual experience on site and refractory material research and development experience.
To obtain an accurate quotation for magnesia carbon bricks, relevant information needs to be provided;

• Ladle: tonnage of the ladle, type of steel, use area, ladle mouth, ladle wall, ladle bottom, slag line. 

       Magnesia carbon brick subdivision type: 

1. freeboard bricks
2. slagzone bricks
3. sidewall bricks
4. sidewall insulation
5. bottom safety bricks
6. bottom insulation bricks
7. bottom impact bricks
8. bottom bricks
9. slagzone purging area bricks
10. sidewall purging area bricks  

• Converter (BOF)

1. Furnace wall bricks
2. Furnace bottom brick
3. Steel outlet brick
4. purging plug
5. purging plug surrounding brick 

• Electric Arc Furnace （EAF）

1. Furnace wall bricks
2. Slag line brick

As mentioned above, the magnesia carbon bricks used in each area are produced using different plans, so the price of magnesia carbon bricks varies according to different usage requirements.

In addition, it is also necessary to provide corresponding physical and chemical indicators so that engineers can calculate the cost. At the same time, engineers can also design a set of fire-resistant solutions according to the actual needs of the site.

Magnesia carbon bricks are designed and manufactured according to different use parts and different use conditions. They are made of high-purity, high-density fused magnesia or large-crystal fused magnesia, high-purity graphite, etc. as the main raw materials, adding appropriate amounts of antioxidants, using phenolic resin as a binder, and are formed by high pressure.

Justhigh Refractory is a Chinese refractory manufacturer with a factory located in Haicheng, Liaoning Province. Haicheng City is the world's largest concentrated magnesia ore production area. With its geographical advantages, we can provide customers with high-quality magnesia sand of various purities and magnesia refractory bricks of various indicators. Our supply and service scope covers regional merchants all over the world who need our products and solutions. To obtain the most competitive price of magnesia refractory materials, please contact us!