RH vacuum refining furnace

Hefeng Company has been committed to the research and development and overall design of RH refining furnace products for many years, including dipping pipe outer casting material, working layer lining brick, RH gunning material, corundum casting material, magnesia chromium ramming material, magnesia chromium fire clay , Steel fiber high-aluminum castables and other products.

In recent years, environmental protection has become a prerequisite for social development. Everyone is paying more and more attention to the pollution of hexavalent Cr ions in magnesia chrome bricks to the human body and the environment. In order to adapt to the development of the society and meet the needs of customers, our company has invested a lot of Dedicated to the research of chromium-free RH refractory materials. In 2012, the chromium-free refractory technology was successively put into use in Anshan Iron and Steel, Shougang, Maanshan Iron and Steel, Lianyuan Iron and Steel, Shandong Iron and Steel and other large domestic steel plants, and has been well received by users.

Main features of RH products:

1. The outer pouring material of the dip tube uses corundum and spinel as the main raw materials, and low cement as the binder, which has good thermal shock stability, high erosion resistance and corrosion resistance;

2. Circulation pipes and immersion pipes are designed according to the use conditions of various steel plants, including plug-in, flat-laying, and overall. At the same time, the standards of butt joints are strictly controlled, which greatly reduces the cost of rolling steel or even wearing steel due to butt joints. risk;

3. According to the common damage mechanism of the immersion pipe, the structural parts of the immersion pipe have been reasonably optimized to make the working layer lining bricks, structural parts, and outer casting materials better combine together to achieve continuous use of multiple furnaces without the need The target of gunning maintenance;

4. The RH lined refractories produced by our company are magnesium spinel bricks with fused large crystalline magnesia and fused spinel as the main raw materials;

5. At present, our company has obtained 5 national patents for the research of refractory materials for RH.