Production method of high-alumina mullite cast steel bricks

Abstract

The invention discloses a production method of high-alumina mullite cast steel brick. The production flow is as follow: purchasing raw materials; crushing and processing the raw materials; preparing; mixing; forming green bricks; drying the green bricks; sintering; inspecting; packaging and putting the bricks into storage. The production method uses high bauxite as the main raw material which is abundant in resource and great in storage, and the high-alumina mullite cast steel bricks are strong in chemical stability and good in physical performance. In addition, the product produced by the method disclosed by the invention has stronger anti-erosion capability and good thermal stability. The production process is simple and convenient to operate and is beneficial to batch production.

Description

technical field [0001] The invention relates to the field of refractory materials, in particular to a production method of high alumina mullite cast steel bricks. Background technique [0002] At present, clay-based cast-steel bricks are generally used in the market for production of cast-steel bricks, but with the advancement of steelmaking technology and the popularization of continuous casting ingot production methods, the use of mold-casting production methods has dropped significantly, and clay-based cast-steel bricks Also rarely used anymore. [0003] However, another type of cast steel brick, that is, special alloy steel, is still mostly produced by die casting due to the complex smelting process, low output and high cost. The quality requirements of special alloy steel are high, while the original clay cast steel bricks have poor corrosion resistance, which is easy to cause alloy steel castings to be included and scrapped. Therefore, special steel enterprises are v...

AI Technical Summary

Problems solved by technology

[0003] However, another kind of cast steel brick, that is, special alloy steel, is still mostly produced by die casting due to the complex smelting process, low output and high cost.

The quality requirements of special alloy steel are high, while the original clay cast steel bricks have poor corrosion resistance, which is easy to cause alloy steel castings to be included and scrapped. Therefore, special steel enterprises are very urgent to enhance the corrosion resistance of refractory materials, and urgently need high-grade poured steel bricks to reduce the inclusion of special steel

Ordinary high-alumina cast steel bricks are also produced by refractory enterprises in China, but ordinary high-alumina cast steel bricks have poor thermal shock stability, and their corrosion resistance cannot fully meet the requirements of special alloy steel production.