Current status and development trend of laser remanufacturing of short stress path rolling mill

• Published in: Cai liao gong cheng = Journal of materials engineering Vol. 47; no. 11; pp. 43 - 52
• Main Authors: Zhang, Bin, Chen, Sui-yuan, Liang, Jing, Liu, Chang-sheng, Cui, Tong, Wang, Mei
• Format: Journal Article
• Language: Chinese
• Published: Beijing Beijing Institute of Aeronautical Materials 01.11.2019; Journal of Materials Engineering
• Subjects: Failure analysis; Failure mechanisms; Failure modes; fret-ting wear; High temperature; Industrial plants; laser remanufacturing; Lasers; Maintenance; material design; Mechatronics; Remanufacturing; Rolling mills; short-stress-path rolling mill; Steel industry; Steel making; Steel scrap
• ISSN: 1001-4381; 1001-4381
• DOI: 10.11868/j.issn.1001-4381.2018.001149

The short-stress-path rolling mill is a mechatronics equipment which is widely used in the steel manufacturing industry. China has the largest number of used rolling mills in the world. Most of the rolling mills are served under the harsh environment of high temperature, high humidity and fretting wear, which leads to the decrease of rolling mill system accuracy and failure scrap. At the same time, the rolling mills in the scrapped state occupy a large amount of storage spaces and site resources of the factories. Furthermore, the natural corrosion of the idle rolling mill will cause serious environmental pollution. Laser remanufacturing is a new type of technology for high-efficiency green rolling mill repairing and remanufacturing. The main failure modes of short-stress-path rolling mills and the application of laser remanufacturing technology on short-stress-path rolling mills were summarized in this paper. From the aspects of mill condition analysis, failure mechanism and material design, the main problems