Yuchai Casting residual stress reduction techniques up to international standard
Appraisal meeting site 8 16 morning, Guangxi Science and Technology Department organized experts on the stock company to complete the "use of Engine Cylinder block, cylinder head castings such as heat aging technology research "project to identify the scientific and technological achievements. According to some experts, the project has independent intellectual property rights, innovative, leading domestic and international advanced level of technology.
The morning, the project scientific and technological achievements appraisal meeting in Yuchai Power Building, 4th Floor Conference Room, from Huazhong University of Science and Technology, Professor Li Yuan was the chairman of the Guangxi University Professor Chen as vice chairman of the right of the 7 technology for the project appraisal committee results were identified. Autonomous Science and Technology Department Director Li Weihong, Secretary of Yulin City in a flying science and technology, and the project team Qiuzhen Quan, deputy director of the core members of the Casting Plant, Zhao Guoqin, Li Wu, deputy director of the new, the quality of the quality of development, Deputy Director Department of Children and other leaders attended the Civic Arts appraisal meeting.
Meeting, key points from the work of child thinking arts, economic and social benefits, prospects, do the technical work of the project report. Listen to the report, the appraisal committee of experts on technical aspects of project-related challenge to the project team members, ask questions of the experts, Zhao Guoqin and other project team members to give the answer.
Finally, the identification of the Committee examined the relevant technical documentation and inspection based on the production site, after serious discussion, the formation of expert opinion: The project has independent intellectual property rights, innovative, leading domestic and international advanced technology . Project conforms to the national energy saving policy, with significant economic and social benefits, application prospect, they unanimously recommended that further expand the application scope, to promote the popularization and application of industry and contribute to energy conservation.
It is understood that casting residual stress too easily lead to casting distortion, cracking, affecting the quality of casting and further processing. The project proposes to use the first time, casting and electric auxiliary heating heat heat treatment process and its application in the engine cylinder and cylinder head castings, heat treatment process, and electric auxiliary heating device and heat treatment process innovation. Currently, the technology has achieved initial results of the use of significant results: First, reduce the effect of casting residual stress significantly. After that the process of casting the average residual stress is less than 20MPa, below the heat treatment process of domestic traditional casting residual stress; Second, a significant reduction in energy consumption by 3 years of application in practical production, the total saving 1.126 million Kwh , equivalent to 4124.7t standard coal, has achieved remarkable economic benefit; Third, the traditional aging technology to reduce operating time of the site area occupied, to improve workplace efficiency and productivity, significantly reducing heat emissions, improve worker smooth operating environment and logistics.
Related personnel, said the project technical achievements in Yuchai Foundry Center under construction in the further application.
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