The cost of producing Refractory in the developed world is much higher than in the developing world

2021-11-15

It is predicted that in the next five years, the average annual consumption of steel Refractory per ton will decrease by 0.5 ~ 1.0 kg, and in 2005, the per ton consumption of steel Refractory in China’s iron and steel industry will decrease to 28 kg. Based on the output of 130 million tons of steel, the market capacity of Refractory in China’s iron and steel industry will drop from more than 4 million tons in the past two years to more than 3.6 million tons in 2005. In recent years, the world’s Refractory industry has undergone major changes. On the one hand, the consumption of Refractory has declined over the past 20 years as a result of technological advances in user industries, changes in processes and equipment, such as increased steelmaking in electric furnaces, and improvements in the Refractory itself, the average annual consumption of tons of steel Refractory is reduced by about 5 kg. On the other hand, the globalization trend is obvious, the competition intense makes the Refractory variety, the performance and the quality obvious enhancement, the Refractory enterprise for the user’s service consciousness and the ability enhancement. Many small and medium-sized enterprises that lack competitiveness and modern enterprise management consciousness have gone bankrupt and merged and reorganized the Primary Colors. The future fire-resistant raw materials will be high-purity, natural selection and synthetic and used. The microstructure and thermodynamic properties of al-si Refractory can be improved by developing and utilizing the “Three stone”raw materials, I. E. Andalusite, Sillimanite and Kyanite. Because the mullite is changed into mullite at high temperature, and the expansion coefficient of mullite is small, it is beneficial to improve the thermal shock resistance of the material. The addition of Andalusite to the material results in the formation of numerous micro voids in thermal stress diffusion, which releases the stresses in the Refractory, thus improving thermal shock resistance. The temperature of mullitization of Sillimanite is higher, which is helpful to improve the creep resistance at high temperature. In addition, the volume expansion effect associated with mullitization is also beneficial to high temperature creep resistance. With the development of good synthetic refractory materials, the use of natural materials in developed countries is decreasing, while the use of high purity synthetic materials is increasing. This is due to the increasing proportion of amorphous Refractory in the use of synthetic materials, however, the output of clay brick, high-alumina brick and zircon brick, which use a lot of natural materials, is decreasing. Innovation, research and development, education, management and investment will therefore be key to the dynamism and success of the Refractory industry of the future. The current and future years will be a period of structural optimization, corporate restructuring and variety restructuring for Refractory. The Refractory’s development strategy should be based on China’s rich natural resources and develop high performance synthetic raw materials and more high performance and functional products to meet the requirements of advanced high temperature industrial development, the emphasis is on continuous casting and clean steel production. At the same time, attention should be paid to equipment and management to improve the stability and reliability of refractory materials and products. The cost of producing Refractory in developed countries is much higher than in developing countries, and stricter environmental requirements force them to produce only high value added products or export technologies, and the transfer of bulk products, labor-intensive products to the developing countries production. China is blessed with the advantages of raw materials and labor costs, no doubt more opportunities. China announced that from January 2004, most of the export of refractory raw materials to cancel the rebate, finished exports will also reduce the rebate. This means that important ingredients come out