Russia Aluminium tells everyone that inclusions and gases in the metal have a major impact on the strength, corrosion resistance, and stress corrosion cracking performance of the material.
Effectively controlling the oxidized inclusions in the melt to improve the quality of cast rods and rolled plates has become a common goal pursued by the metallurgy, casting and material industries of all countries.
Currently, filtering and purification methods are widely used to remove inclusions in aluminum alloy melts.
China is a major producer of aluminum products, and the output of aluminum products has always been the world’s largest, but mainly low-end products.
With the continuous expansion of Russia Aluminium market demand, aluminum products must move toward high-end. The use of foam ceramic filter plates can improve the quality of aluminum products and improve product grades to meet the requirements of the high-end market. Therefore, the demand for filter plates
The development of foam ceramic materials began in the 1970s and is a porous material with high temperature characteristics.
Its pore size ranges from nanometers to micrometers. It has a high-porosity porous ceramic body with a three-dimensional spatial grid structure. The porosity is between 20% and 95%. Its shape is like tempered foam or porcelain. Sponge body, the use temperature is from room temperature to 1600℃.
Since the United States invented the use of alumina, kaolin and other ceramic slurries to successfully develop foam ceramics in 1978, they have been used for aluminum alloy casting and filtration. Countries such as Britain, Japan, Germany, and Switzerland have been racing to carry out research.
Russia Aluminium’s production technology is becoming more and more advanced, and its technical equipment is becoming more and more mechanized and automated. According to different application purposes, a variety of materials have been developed for foam ceramic filters suitable for different purposes.
Such as A1203, ZrO2, Sic, silicon nitride, boride and other high-temperature foam ceramics, and some also add certain minerals, such as mullite, Dong Qingshi, fly ash, coal ash, etc., and the products have been serialized and standardized , Forming a new industry.
Russia Aluminium ceramic foam filtration is the last process in the purification of aluminum melt.
It needs to be particularly pointed out that it is necessary to prevent the secondary pollution of the melt that may occur in the process of the aluminum melt from leaving the filter box to solidification.
In this process, use long-life, high-strength, non-stick aluminum, and good thermal insulation fused silica ceramic sintering trough, front box, distribution plate, and hot cap, and timely dehumidification and cleaning to eliminate possible pollution sources .
It cannot be ignored to ensure the cleanliness of the aluminum melt.