News
- 30.11.10
Magnezit Group in 2011 begins production of dry magnesia mass for lining of vessels for continuous casting of steel
Magnezit Group begins in 2011 production of dry magnesia mass for working lining of tundishes of continuous casting machines at the plant “Magnezit- Torkret-Massy”, which makes part of Satka production site of the company (Satka, Chelyabinsk region). Currently such masses are not produced in Russia.
Dry magnesia mass is resistant to the melts of metal and slag and possesses high thermal insulating properties thanks to optimal grain composition, modifiers and a complex binder. Mass composition is developed in such way that after finishing operation of the tundish and cooling of the lining to the temperature of less than 400º С the working lining loses its construction strength and is easily removed. The mass is produced on the basis of densely sintered periclase powders which are produced by Magnezit Group on its production facilities in Chelyabisnk region.
The new kind of products is intended for implementation of the method of “dry gunning”. It enables to considerably improve basic engineering-and-economical performance of steel casting. Energy and refractories consumption is reduced as well as time of preparation of tundishes for casting. Quality of continuously cast billets is improved, technological effectiveness of operations of working lining production of tundishes is improved as well as providing for accident free mode of work of the vessel. In perspective it will be possible to reduce the number of tundishes. Such dry lining possess a number of considerable advantages in comparison with traditional linings made by semi-dry or wet gunning by masses of basic composition.
Linings of tundishes with dry magnesia masses are currently widely used in Europe. On the CIS territory such technology was introduced in 2009 and was successfully tested in the converter workshop of one of the biggest metallurgical plants. During the period of pilot and industrial-scale tests of tundishes there were no complaints concerning lining strength and natural gas consumption lowered during the first half year of the new technology application by 1,8 million cubic meters. Supplier of the dry magnesia mass is in this project the company Dalmond Feuerfest Siegburg GmbH & Co. (Germany, makes part of Magnezit Group).
Implementation of the project of production of the dry mass in Russia on the basis of Satka production site is a bright example of production cooperation of the plants of the Group. Using its own scientific and technological potential as well as raw materials possibilities of the plants Magnezit Group optimizes recourses for developments and production of high quality products with the aim of satisfying ever increasing requirements of customers.