Development of the production of high speed steel rolls for hot strip rolling

• Grant number: 97/02427-7
• Support Opportunities: Research Grants - Research Partnership for Technological Innovation - PITE
• Start date: December 01, 1997
• End date: November 30, 2000
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Physical Metallurgy
• Principal Investigator: Amilton Sinatora
• Grantee: Amilton Sinatora
• Host Institution: Escola Politécnica (EP). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Company: Aço Villares S/A
• City: São Paulo

Abstract

The objective was the production of cast highspeed steel rolls for hot strip rolling, with a performance superior to that shown by the rolls currently made in Brazil. The targets of the project were: a) to produce high-speed steel rolls for hot strip rolling with a competitive advantage of at least 10 per cent, in terms of the cost/benefit coefficient, compared with the products currently produced in Brazil; b) to attain reliability and reproducibility in the manufacturing process (levels of rejects lower than 5 per cent of the total of rolls produced). The activities of establishing the bases of the research project were carried out at the premises of the Metallurgy Division of the IPT and of the Laboratory of Superficial Phenomena of the Mechanical Engineering Department of Epusp, as well as in Villares’s roll factory. The pilot production of rolls was carried out at the same factory, in Pindamonhangaba (SP), with subsequent operation in the steel mills, followed by analyses of their behavior and performance. (AU)