On 3 December 2015 (second session) China International Aluminum Casting summit held in Harbin, from domestic and foreign aluminum processing industry enterprises and associations, related research institute and other hundreds of people gathered in the city of ice and explore industry development in the future. Hou Qiangsheng, deputy director of the technical center of our company as a business representative, was invited to attend the summit. The summit to "focused casting technology, leading the future machining, focus on technology to explore, achieve win-win benefits" as the theme, the forefront of the industry process and production technology launches the discussion, and jointly promote the casting industry to upgrade its technology, promoting the development of the industry. Meeting, director Hou do "aluminum alloy large diameter hollow ingot casting technology innovation," the speech. He briefly introduced the basic situation of the company, and focus on large diameter hollow ingot at the same level hot top casting process and equipment features and 7xxx series of large diameter hollow ingot casting characteristics analysis are described in detail. Hou director of the wonderful speech was the scene of the participants of the resonance. The success of the conference building, further demonstrates the good image of the company, improve the understanding on the company's aluminum processing enterprises, the company leading in northeast light alloy, SWA, Shandong Yankuang light alloy company 2 Department of XXX, 7xxx aluminum alloy large diameter hollow ingot same level hot top casting production technology is to get everyone's affirmation and praise, everybody said it will strengthen exchanges and learning with the company. Company in recent years are committed to new products, new technology research and development, at the same time is 7xxx aluminum alloy research and tackling key problems as a top priority, through unremitting efforts, has successfully produced a 7xxx series of large diameter seamless pipe and application in aviation, aerospace and other fields. The meeting the company become more aware of the importance of aluminum casting quality of, pay more attention to the casting process, continuously improve the quality of products, with advanced equipment and strong technology support, all the way forward in the market.