Refining and Out-of-Furnace Treatment of IF-Steel in the Oxygen-Converter Shop at the MMK

The Magnitogorsk Metallurgical Combine has mastered the production of galvanized cold-rolled automobile sheet from high-strength IF-type steel with an ultralow carbon content. The steel also has superior stampability. The article describes a technology that the oxygen-converter shop of the MMK is using for the production and out-of-furnace treatment of IF-steel of the required chemical composition. The article touches on several of the factors that help reduce production costs and improve the service properties of cold-rolled sheet obtained from the steel. __________ Translated from Metallurg, No. 8, pp. 44–45, August, 2005.     

Rate of material destruction under unilateral heating

A linear dependence is established between the quasistationary rate of mass entrainment and the square root of the enthalpy of the stagnation flow. An equation is proposed for its computation in a broad range of external action parameters.Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 52, No. A, pp. 533–540, April, 1987.     

Asymptotic behavior of the resonance for two-dimensional waveguides coupled via a hole

The principal terms of the asymptotic expansion of a resonance (quasi-eigenfrequency) are derived for waveguides coupled via a small hole. The Dirichlet condition is assumed to be fulfilled at the boundary. The results are compared to estimates obtained earlier. The construction is performed by matching asymptotic expansions for solutions of boundary-value problems.     

Catalytic synthesis of a stabilizer for industrial oils

Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 7, pp. 10–11, July, 1990.