As the equipment manufacturing industry transitions towards high-quality development, casting, as the core fundamental process of equipment manufacturing, directly impacts the quality and performance of end products through its technological level. Foam ceramics, as an advanced inorganic non-metallic material with excellent characteristics such as high porosity, high temperature resistance, and corrosion resistance, have become a key auxiliary material for optimizing casting processes and enhancing casting quality. However, there are numerous types of casting processes, and significant differences exist in temperature, pressure, and casting precision requirements among different processes. How to scientifically select corresponding foam ceramic products has become an important issue for many casting enterprises to improve production efficiency and reduce costs.

With the increasingly widespread application of foam ceramics in the foundry industry, their role in metal liquid purification and casting quality improvement has become increasingly prominent. However, in the actual production process, the frequent cracking and fragmentation of foam ceramics not only lead to a decline in filtration efficiency, slag inclusion, porosity, and other defects in castings, but also increase production costs and affect production efficiency. Industry insiders point out that the cracking and fragmentation of foam ceramics is not an accidental phenomenon. Its causes are closely related to various aspects such as product quality, selection and compatibility, and operational standards. Identifying the causes and taking targeted preventive measures have become key to reducing losses and improving production stability for foundry enterprises.

As the core auxiliary material for metal liquid purification in the foundry industry, foam ceramic filters play a significant role in enhancing the purity of castings and reducing defects, thanks to their high porosity, high temperature resistance, and corrosion resistance. However, in practical production applications, many enterprises have encountered issues such as cracking and fragmentation of foam ceramic filters due to neglecting preheating operation specifications or improper preheating methods. These problems not only affect the filtering effect but also increase production costs and slow down production progress. Industry experts point out that correct preheating operation is the prerequisite for the stable performance of foam ceramic filters. It is necessary to combine the characteristics of casting processes and product material properties, and follow scientific procedures to avoid usage risks and help improve the quality and efficiency of casting production.

In the purification process of metal liquid in the foundry industry, foam ceramics, with their three-dimensional interconnected porous structure and excellent high-temperature and corrosion resistance, have become the core auxiliary material for removing impurities from metal liquid and enhancing the quality of castings. Industry insiders point out that the filtering effect of foam ceramics is not determined by a single factor. Among them, pore size serves as a core parameter, directly affecting the impurity interception ability, metal liquid fluidity, and filtering stability. Whether the selection is reasonable or not directly relates to the purity of castings, production efficiency, and production costs of enterprises. Clarifying the influence of foam ceramic pore size on metal filtering effect and scientifically matching casting processes with casting requirements have become important links for foundry enterprises to improve quality and efficiency.

Aluminum melting and casting, as the core process in the production of aluminum alloy materials, directly determines the purity, mechanical properties, and surface quality of aluminum alloy products. It is widely used in various fields such as automotive, aerospace, electronics, and construction. With the increasing demand for high-quality aluminum alloy products from downstream industries, traditional filtration methods have become difficult to meet the production requirements of high precision and high purity. Foam ceramic filters, with their unique porous structure and excellent material properties, are increasingly being applied in the field of aluminum melting and casting. Their numerous application advantages not only effectively solve the filtration problems in aluminum melting and casting but also help enterprises reduce production costs and improve production efficiency, becoming an important support for the high-quality development of the aluminum melting and casting industry.