① Upgrading of molten steel smelting equipment. Open hearth steelmaking was eliminated in the metallurgical industry four years ago, and the machinery industry will completely eliminate open hearth steelmaking in 2005. It will be replaced by high-capacity, high-power, ultra-high-power electric arc furnace, ladle refining furnace and VD / VOD...
Although China’s foundry industry has achieved rapid development in recent years, there are still many problems. First, the degree of specialization is not high and the production scale is small. The average annual production of each plant in China is 815t, which is far lower than 4606t in the...
Most excavators work in the open air, and the service environment is poor. The working mechanisms of excavator bucket, stick, boom and crawler roller are designed with multiple hinge points, which are connected and loaded through pin shaft and bushing. The pin shaft and bushing rotate relatively, transmit large...
The geographical distribution of China’s casting industry is mainly distributed in five regions, including Henan Province, Liaoning Province, Shandong Province, Pearl River Delta and Yangtze River Delta. About half of China’s castings are produced in these five regions. In the Yangtze River Delta, there are about 6000 casting enterprises,...
In 2015, the total output of castings in China was about 24420000t, an increase of 75% compared with 2010. The total number of foundry plants is about 30000, including 19200 iron casting plants, 5700 steel casting plants and 4300 non-ferrous alloy plants. There are about 1.2 million workers engaged...
The manufacturing industry of large steel castings is the basic industry of national equipment manufacturing, and its development level is an important symbol to measure a country’s comprehensive national strength. Large steel castings are widely used in power station, petrochemical, metallurgy, shipbuilding and other equipment and equipment manufacturing industries,...
China’s steel casting parts are indispensable products for China’s equipment manufacturing, the basis of national equipment manufacturing, and occupy a very important position in the machinery manufacturing industry. The quality and development level of China’s steel casting parts is one of the important symbols to measure a country’s comprehensive...
Although the development of China’s foundry industry has made great progress in recent years, the whole industry is still in an extensive development state. There is still a large gap with the international advanced level and social expectations in terms of industrial structure, quality and efficiency, independent innovation ability,...
China’s steel casting parts manufacturing industry is the basic industry of national equipment manufacturing, especially the manufacturing of large Chinese steel casting parts. Its development level is an important symbol to measure a country’s comprehensive national strength. Chinese steel casting parts are mainly divided into three categories: carbon steel,...
1.Three dimensional simulation of physical field in mold filling process Numerical simulation of physical field in mold filling process, including numerical simulation of flow field in mold filling process, temperature field and stress field in solidification process, as well as numerical simulation of microstructure and grain growth and morphology....