Various Aspects and Advantages of Silicon Carbide Foam Filter for Foundries

The manufacturing industries utilize various kinds of metals, alloys and other composition materials to manufacture different products. One of those is molten iron and its alloys which require filtration for further manufacturing. The ceramic foam filter is used for the filtration in various steel and other foundries too. Due to the raw nature of ores, there are several impurities in them and hence, those need to remove for quality casting of the products. They are used to filter the metal in the die cast machines before filling in the mould. It also simplifies the method of casting, improves yield and reduces the time spent in the entire process.

Different aspects of foundry filter

The following describes the different aspects of SiC ceramic foam filter used in the foundries:-

Properties: There are few important properties that are required in these filters for the processes. First of all, the filter must be made of materials which can resist the optimum thermal attack and also it should not get corroded due the molten metal. Corrosion, creeping, breaking down of the filtration material would entirely fail the process. Those should withstand the initial priming head. The SiC ceramic foam filter should have stable physical and chemical properties to ensure quality filtration process. It must comply with the high temperature too.

Specifications: While ordering the filters for the foundry purposes, there are certain specifications that have to be checked categorically at first. The porosity of the filter must have a higher percentage in terms of void space in the material and if not high, they should at least match to the industry standards. Compressive strength has to be checked out in order to know the filter’s capacity to withstand. Filter’s thermal resistance gives information about the toleration of molten metal poured over it.

Types: The ceramic foam filter is available in various types and dimensional specifications. Some of the widely used ones are alumina for aluminum filtration and casting, Silicon carbide ceramic filters for iron and iron alloy castings, Zirconia filters for casting steel and stainless steel filtration. Similarly, Chromia and Magnesia materials are used for copper and magnesium alloys filtration procedures respectively.

Benefits: There are several advantages of using foundry filter for the filtration processes. First of all, it helps in removal of impurities and inclusions and along with that it reduces splashing and turbulence which may form oxides and sand erosions at the lower part. It offers various methods of scrap control as it lowers the scrap level percentage and prevents unwanted expenses and hence, increases the productivity. It produces great quality castings which have improved finishing, surface details and appearance. Consistency in the castings is very important for manufacturing. Following these automatically the rejection rate will get reduced by a higher percentage and also it would cost less to machine the castings.

These filters can be ordered in custom sizes and shapes with respect to the requirements in the machines. Orders must be made by verifying all of the specification details.

Julia Jones is an expert chemical engineer and has years of experience in producing sic ceramic foam filter with leading agencies. His tips on use of foundry filter help the manufacturers to boost their productivity.

For more information visit us:- http://www.filtec-corp.com/CF600-Steel.html

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.