High load soft high alumina brick
1. Three stone concentrate powder is added to the matrix of high load soft high alumina brick, and high alumina bauxite fine powder or α- Al2O3 powder, corundum powder, and clay composite binder or mullite binder are used as the binder. In this way, the load softening temperature of the product can be increased by 50-100 ℃
2. Micro expansion high alumina brick
In order to ensure the proper expansion of micro expansion high alumina brick in the use process, the key is to select the three stone minerals and their particle size, control the firing temperature, so that some of the selected three stone minerals are mullitized, and some of the remaining three stone minerals are further mullitized in the use process, accompanied by micro expansion reaction. It is better to add the three stone minerals with the compound, because the Mullitization temperature of the three stone minerals is different, and the expansion is also different. Therefore, the high alumina brick has the corresponding expansion effect due to different working temperature. Squeeze the brick joint, improve the compactness of the overall structure and improve the impermeability of the brick.
