[Reprint China Metallurgical News] An important branch of China's foundry industry-the roll industry is realizing industrial sublimation
Time:
2023/05/01
The foundry industry is a traditional processing industry, a basic industry related to the national economy and people's livelihood, and a basic support industry for metallurgy, mining, shipbuilding, machinery, and equipment manufacturing. Without the foundry industry, there would be no steel and iron for the Republic. Since the beginning of the 21st century, China's casting output has ranked first in the world for more than 20 years. Especially in recent years, the total amount of all kinds of castings produced in China has occupied half of the world. Among the top ten casting producing countries in the world, the first casting production in China is equivalent to the sum of the casting production in other 9 countries. China is a veritable casting production superpower, but not yet a power.
The roll industry is the main branch and component of the foundry industry. In recent years, according to incomplete statistics, the country produces about 1 million tons of casting rolls every year, accounting for no more than 5% of the country's total casting output, but this does not exceed 5% of the output, but it meets the national rolling production needs of more than 1 billion tons of rolled products. As the national roll manufacturing industry colleagues keep pace with the times and actively carry out product and technological innovation, they have made important contributions to the realization of the transformation and upgrading goals of China's steel industry.
Roller is known as the mother of rolling, each rolling material is rolled by the roll out. Therefore, the quality of the roll is directly related to the surface quality of the rolled material, which restricts the operation rate of the mill and the output of the mill. In order to show that domestic roll enterprises keep up with the pace of the new era in recent years, on the one hand, they have met the needs of steel enterprises' product transformation, on the other hand, they have made many efforts in green environmental protection and technological upgrading; aiming at the world trend of roll production, they have improved the manufacturing level and service life of rolls in all aspects of roll composition design, manufacturing process, detection method, pass processing, use technology and maintenance, so as to meet the needs of steel users, realize the product sublimation.
Although the roll industry is a small industry, it is a technology-intensive and resource-intensive industry. The rolling industry hopes that roll companies will produce more professional and characteristic products, and gain greater improvement in the trend of the great development of the national economy.
News source: China Metallurgical Newspaper
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