Ceramic Filter Suppliers Aluminium Jakarta has the characteristics of large filtration area, good thermal shock stability, high chemical stability, good metal corrosion resistance, and high filtration efficiency.
Therefore, in the screening and purification technology of molten metal, as a new type of high-efficiency filter, it has received the attention of aluminum smelters and foundries.
Ceramic Filter Suppliers Aluminium Jakarta is widely used in the filtration of non-ferrous metals such as aluminum and aluminum alloys.
Since casting filters are used to filter solid slags such as metal oxides contained in molten metal during the casting process, thereby improving the quality and yield of castings, the use of foam ceramic filters has promoted technological progress in the casting industry.
Ceramic foam filters are basically divided into 6 kinds of pore sizes: 10PPI, 15PPI, 20PPI, 25PPI, 30PPI and 40PPI. The larger the number, the smaller the opening. But in actual operation, the four types of 10PPI 20PPI 30PP 40PPI can meet the needs of customers.
The molten aluminum filter is a highly efficient and durable molten aluminum filter used to filter oxide and non-oxide impurities.
The non-metallic solid particles suspended in the molten metal can cause serious difficulties in the manufacture and manufacture of aluminum.
These particles are mainly composed of oxides, which are mixed into the melt with residues during the melting process, or are produced by direct oxidation with air, water vapor, carbon dioxide and other oxidizing gases when the metal is processed in the molten state. .
It is very dangerous for the finely divided oxide film to be stirred into the molten metal because, compared with macroscopic oxides and other solid particles, they cannot be removed in the form of fragments and remain suspended on the molten metal.
It has been proposed to impart buoyancy to these oxide particles by small hydrogen bubbles adsorbed on the particles.
Although these proposals and other predictions about some form of relationship between hydrogen and particulate solids in the melt have no convincing experimental evidence, the proven fact is that there is indeed a relationship between particulate solids and hydrogen during metal casting. The interaction between.
The solid particles dispersed in the metal act as crystal nuclei and form hydrogen bubbles during the solidification of the metal.
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