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Classification of Extruded Filter and Zirconia Ceramic Foam Filter

Author: Julia Jones
by Julia Jones
Posted: Dec 30, 2015

Alumina, iron, and steel foundries have their own set of features and design concepts. During the selection of the filters, lots of things have to be checked precisely. The design and technical specifications of these elements vary according to the molten metal. So, there are different types of filters available with varied compositions, pore sizes, and shapes. Compositions of the filters range from zirconia filter for steel and super-alloys to SiC or silicon carbide for iron filtration.

Use of Extruded Filter and Zirconia Ceramic Foam Filter:

Iron Foundries – There are different kinds of ceramic filters are being available for these requirements. Among all, cordierite-mullite-based extruded ceramic filter have great significance towards the processes. Through adopting modern engineering technologies, it can be given a perfect size matching to the given specifications, without interfering its mechanical strength and resistance features.

While this filter applied, it efficiently removes the non-metallic inclusions and every other unwanted slag from the molten iron. The surface finish gets the perk and there will be no threats of inclusions in metal casting. With or without the ceramic foam filters, the extruded filter can be used in iron foundries. Specification of this special type of filter varies, right from its thermal expansion coefficient to the compression strength.

Steel Foundries – The zirconia ceramic foam filter has the ultimate features to be the foremost choice for different steel foundries. The Ca -stabilized zirconia filter offers high porosity in addition to mechanochemical stability. It also ensures superb resistance to corrosion and thermal attack during the filtrations of the molten steel liquid. In an average, 70 to 80 percent porosity along with compression strength of 1.5Mpa is considered.

These types of filters are really able to eliminate inclusions, decrease the trapped gas from molten steel. Using it as filter in gating system leads to laminar flow of the liquid metal, during the process. Through advanced engineering ideas during the creation of the filters, it receives the feature to have tight dimensional tolerance which defines it as the great choice for all sorts of steel foundries.

Benefits of Using Extruded and Zirconia Ceramic Foam Filter:

There are lots of advantages bundled with the use of these special ceramic filters.

  • Cleaner steel and iron casting without impeding the chemical plus mechanical properties can be achieved.
  • The yield of the casting will be improved significantly. Whether it is an extruded or zirconia filter, it accelerates the processes.
  • The production cost also minimized eventually, due to the scrap reductions.
  • Thermal shock traits along with high temperature strength make it ideal for all small to large foundries.
  • Through reducing the inclusions in metal-castings, the steel or iron foundries get super grade materials.
  • Being available in all standard as well as custom size and shapes, as per the requirements of the foundries.

Some of the specially made extruded filter products are too applied in casting steel foundries. Also it can be used with or without ceramic foam filter, while processing the molten iron.

About Author:-

Tao Lu is an expert chemical engineer and has years of experience in producing ceramic and extruded filter with leading agencies. His tips on use of zirconia filter help the manufacturers to boost their productivity essentially. He also recommend zirconia ceramic foam filter for all steel foundry applications.

About the Author

Steel foundries looking to order high quality Zirconia ceramic foam filter can opt for the Ca-stabilized Zirconia products made by Filtec Precision Ceramics Corporation. They are in great demand for the filtration of molten steel and its alloys.

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Author: Julia Jones

Julia Jones

Member since: Jun 07, 2015
Published articles: 28

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