News from the 'TECHNOAP'

The TECHNOAP Scientific and Production Enterprise and leasing "REGION" closed-end joint stock company, Magnitogorsk city, have concluded the contract for delivery of the system for early slag detection during steel tapping from the basic oxygen converter to the Magnitogorsk Iron & Steel Works" open-end joint stock company. Particularity in the contract is scheme of financing, namely: the equipment sale on leasing. The TECHNOAP Scientific and Production Enterprise also plans to use the leasing schemes in the subsequent projects designed for the "Magnitogorsk Iron & Steel Works" open-end joint stock company and other customers.

In framework of the bloom continuous caster No. 2 reconstruction in Nizhnii Tagil, the 'TECHNOAP' Scientific and Production Enterprise and "OMZ" prepare to install the equipment of 'SMART MOULD' complex. The replaced system for metal level stabilization in the mould was operated at the works since 1996.

The 'Dynascope' system has been supplemented with the function to measure the ingot friction force in the mould with partitioning into dry and viscous components. At the present, analysis of newly obtained information at 'Severstal' open-end joint stock company is performed.

Currently, at the 'Severstal' open-end joint stock company, tests in continuous caster No. 5 (the 10th strand) according to the special programme with connection of the 'Thermovisor' system are performed coincidentally with the use of the 'Smart Mould' complex. Objective is to determine opportunity for increasing the casting speed up to 1.4 m/min. due to optimal selection of slag-forming powder and selection of optimal relation between the casting speed and the mold oscillation frequency taking into account emergency signals notifying about appearance of situation which might lead to high-probability breakout due to hanging, cracks, gas bubbles, and anomalous formation of the strand shell in the mould.

Five representatives of the 'TECHNOAP' Scientific and Production Enterprise have been sent to the VIIth International Congress of Steelmakers in order to exchange information on trends in development of continuous casting and role of the continuous caster automation at modern stage. Apart from taking part in the plenary meetings, each worker has made a report reflecting one or other work in area of automation, performed or being jointly performed at the "Magnitogorsk Iron & Steel Works" open-end joint stock company, at the continuous casting section. Subjects of the made reports:

• The system for predicting the quality of the continuously cast billets
• Experience in operation of the 'Smart Mould' complex at the "Magnitogorsk Iron & Steel Works" open-end joint stock company
• The 'Thermovisor' is the system for monitoring the strand cooling in the mold of the continuous caster
• Trends in development of computer-aided system for controlling the production process at continuous caster
• The system for early detection of slag

General idea described in the above report course is automation of the continuous caster in order to improve quality of the products. All of the participants and Mr. V.M. Parshin and Mr. S.V. Gorostkin, Chairmen of the section, have unanimously admitted that the presented report course has been very interesting and is characterized by unity of science and its industrial implementation. The presented work of 'Experience in operation of the 'Smart Mould' complex at the "Magnitogorsk Iron & Steel Works" open-end joint stock company', describing in our opinion the scientific and technical subject of the most known and best product, has been admitted as the best one at the section. Its authors are V.M. Korneev (the "Magnitogorsk Iron & Steel Works" open-end joint stock company), A.D. Nosov (the "Magnitogorsk Iron & Steel Works" open-end joint stock company), and N.V. Trifonov (the "TECHNOAP" Scientific and Production Enterprise).

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