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Four seasons of fire resistant material new refractory materials out of the unique development direction

Number of visits: Date:7/14/2016

  In the last 20 years, our country's iron and steel industry production and variety have very big development. In order to adapt to the development of China's ongoing refractory varieties and equipment upgrading, varieties increased more than 10 categories, a total of more than 100 brands, changed the past traditional clay, high alumina, silica, the structure of the varieties of the four categories of magnesia products.

  According to the development of the iron and steel industry, a key, although the growth of steel production will not have big, than will continue to improve, but steel cc ratio and refining equipment continue to large scale and modern trends. Iron and steel industry in the development of these characteristics, prompting refractory continued to improve the quality of products, increase the varieties, at the same time around the saving energy and reducing consumption, to produce some refractory materials with specific functions.

  The development trend of new refractory materials. In recent years the iron and steel production of new technology and new technology promotion, as well as energy saving and environmental protection requirements, to new refractory materials more special requirements are put forward. From the developing trend of the future, new refractory material will include high performance structural and functional refractory two kinds of refractory materials.

  Structured overall development trend of refractories is high purity, densification, motors, carbon of universal, oxide refractory materials and the oxide compound and amorphous materials. Especially monolithic refractories application market greatly in the next period, this is because it has a short production cycle, save energy, good integrity, strong adaptability, and comprehensive use of the advantages of good effect.

  Refractory ball is industrial alumina and refractory kaolin as the main raw material, through scientific formula, forming and high temperature firing. Refractory ceramic ball points common refractory and high aluminum refractory ball, common refractory ball is suitable for the sulfuric acid and fertilizer industry and transformation of converter furnace, high alumina refractory is suitable for urea, industries such as steel ball of hot blast stove, heating transformation furnace equipment.

  The development trend of new refractory materials. In recent years the iron and steel production of new technology and new technology promotion, as well as energy saving and environmental protection requirements, to new refractory materials more special requirements are put forward. From the developing trend of the future, new refractory material will include high performance structural and functional refractory two kinds of refractory materials.

  Structured overall development trend of refractories is high purity, densification, motors, carbon of universal, oxide refractory materials and the oxide compound and amorphous materials. Especially monolithic refractories application market greatly in the next period, this is because it has a short production cycle, save energy, good integrity, strong adaptability, and comprehensive use of the advantages of good effect.

  Technology development trend of monolithic refractories itself has the following several aspects.

  1) material: in recent years, the material of monolithic refractories are composed of neutral, acidic oxide materials to alkaline oxide materials and the oxide and the oxide compound material development, from low to high purity purity, the raw materials are used in this work is given priority to with natural refractory raw materials to the synthetic refractory raw material development.

  (2) combination way: in recent years, the combination of monolithic refractories way towards combining to chemical combination, hydration and hydrate + coagulation combined with - polymerization combined with - coagulation combined with the direction of development.

  (3) job performance: the operation performance of monolithic refractories in recent years towards the difficult thixotropic to easy thixotropic and without the direction of thixotropic (liquid). From the rheological point of view, that is, from plastic - elastic to glue, plastic, elasticity and viscosity, the direction of the plastic.

  (4) the share of water: monolithic refractories in recent years the share of water are made from high moisture to develop in the direction of low water and no water. Monolithic refractories has most of the new technological breakthroughs include the combination of monolithic refractories, the sintering monolithic refractories and their type of monolithic refractories.

  In heating furnace of steel rolling, for example, heating furnace refractory material used in our country has adopted the ordinary clay bricks and high alumina brick, ramming material and plastic, the common castable and high-performance castable. In recent years, the relevant domestic refractory materials research and production unit of heating furnace refractory materials used for research, make the heating furnace with refractory got great progress, the technology level of heating furnace refractory material used in our country is close to the world's advanced level. At present, the heating furnace refractory material used to a new era - intelligent quick-drying pouring material and quick drying their castable transition period.

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