Reasons and Solutions for the Damage of Refractory Materials in Aluminum Melting Furnaces

For aluminum melting furnaces, refractory materials are very important. During the working process of the aluminum melting furnace, the refractory material inside it will be continuously worn out. So, what are the common reasons for the loss of refractory materials in aluminum melting furnaces? How to solve the problem of continuous loss of refractory materials in aluminum melting furnaces? Today, Luoyang HTGP will share it with you.

Common Causes of Loss of Refractory Materials in the Aluminum Melting Furnaces

1. Due to its high permeability, liquid aluminum quickly penetrates into the pores or small cracks of the refractory material during use, causing the structure of the refractory material to gradually loosen and peel off, eventually damaging the refractory material. On the other hand, aluminum alloys are prone to physical and chemical reactions with impurities in refractory materials, and the substances produced during the reaction will affect the quality of aluminum products.

2. The refractory material is bonded to the top of the aluminum melting furnace and reacts, forming nodules on the surface, forming ridges and deposits, which is not easy to handle and can only be cleaned by mechanical devices, which will easily lead to loss of refractory materials.

3. During the operation of mechanical equipment such as feeding and slag removal in the production process of the aluminum melting furnace, the furnace table, furnace wall, furnace bottom, etc. are continuously impacted, and the wear problem is very serious, which is also an important reason for the damage of the refractory material of the aluminum melting furnace.

Solutions

1. Improve the density of refractory materials and reduce the porosity of refractory materials.

The high density and low porosity of refractory materials can effectively prevent the penetration of molten aluminum.

2. Refractory aluminum refractory.

The excellent wetting properties of refractory materials can effectively prevent water penetration and avoid adhesion. Silica refractories and impurities are easy to react with liquid aluminum and magnesium to form cracks and erosion.

Therefore, the content of the aluminum in the refractory material will be higher and higher, which reduces the chance of reacting with liquid aluminum, and results in better corrosion resistance. At the same time, you can add some additives, such as barium salt, chromium salt, etc. and liquid aluminum reacts to form a protective layer that increases the erosion resistance of the refractory.

3. Long wear resistance of refractory materials.

The wear resistance of refractory materials is mainly to improve their strength, which can effectively improve the wear resistance, and the mechanical impact resistance of refractory materials.

The above are the common causes and solutions of the loss of aluminum melting furnace refractory materials shared by Luoyang HTGP. If you have any questions about aluminum melting furnaces and their refractory materials, welcome to consult us.