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Muling city hongxu graphite co. LTD

Address: Shuangxing Village, Hexi Township, Muling City, Mudanjiang City, Heilongjiang Province.

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Graphite as refractory material - low carbon graphite

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Graphite as refractory material - low carbon graphite

Release date:2016-08-02 Author: Click:

One of the main uses of graphite is to produce refractory materials, including refractory brick, orange flour, continuous casting powder, casting mould core, mould detergent and high temperature resistant material. In the past 20 years, two important changes in the refractory industry is MgO-C brick is widely used in steelmaking furnace lining, and the application of aluminum carbon brick in continuous casting process. The graphite refractories and steelmaking refractories are closely linked, the world steel industry consumes about 70%.

(L) magnesia MgO-C refractories is the middle of 60s, by 70s, the successful development of the United States, Japan began to MgO-C brick for steelmaking in electric arc furnace cooling water. At present in the world within the scope of MgO-C brick has been widely used in steelmaking, and has become a traditional use of graphite. At the beginning of 80s, began the MgO-C brick used as lining of oxygen top blowing converter. The British used oxygen steelmaking furnace lining materials mostly MgO-C brick, lining life is 1000 times 1500 times, while Japan, the service life of the lining is 2000 times 2500 times.

Low carbon graphite

(2) using graphite crucible and crucible forming manufacturing related products and refractory and related products, such as crucible, retort, plug head and nozzle etc., with high fire resistance, low thermal expansion, metal smelting process, by metal infiltration and erosion are stable under high temperature, good heat shock stability and excellent thermal conductivity of graphite, so increasing disaster and related products are widely used in the process of direct molten metal.

Flake graphite graphite crucible with traditional clay containing more than 85% C, usually graphite should be greater than 100, and now an important improvement in citrus production technology in foreign disaster is the type, size and quality of graphite flake has greater flexibility; the second is to replace the traditional clay graphite crucible using silicon carbide graphite Gan is produced with this curse, the introduction of the constant pressure technology in the steel manufacturing industry. The constant pressure technology can also make the small flake graphite was used in clay graphite by disaster, large flake graphite containing 90% carbon accounted for about 45%, while in the SiC graphite crucible, the content of large scale components accounted for only 30%, graphite carbon content is reduced to 80%

(3) aluminum carbon brick and aluminium carbon refractory are mainly used for continuous casting, flat steel billet, self transmission pipeline protective cover, underwater nozzle and oil well blasting cylinder, etc.. In Japan, steel produced by continuous casting accounts for more than 90% of the total output, compared with 60% in the uk.

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