Use of Ceramic Filter for Aluminium, Iron and Steel Casting

Metal casting is a very complex process that involves many types of tools and technologies. In this segment, filtering of molten metal and alloys is performed using special fitters. Among all the industrial equipments and machineries used, ceramics is a productive and useful stuff. There are different sorts of filters available for this purpose. The mechanical traits of the ceramic meet most specifications of the metal castings.

Advancement of Metal-casting Using Ceramic Foam Filter:

The use of ceramic filter is an instance of developing metal casting technologies. Special types of ceramic products are formed as a foam-like porous structure. It retains the basic chemical and mechanical traits including the light weight feature and required chemical stability. For different kinds of metals, special sic ceramic foam filter and others are available. The filter manufacturers are able to meet the bespoke requirements and diverse specifications. Design and technical specifications of ceramic filter for Steel and iron alloys will differ, so the manufacturers use different ceramic products.

Basics of Design Methodology:

In fact, through precise engineering, it is possible to create large surface areas ensuring good thermal shock resistance. The distinctive features like improved corrosion resistance and adequate strength also integrated to it. The design of the filters classified into two specific shapes such as round and square specifications with honeycomb weaving way. To facilitate satisfactory filtration effect, ceramic foam filter can be manufactured through dissimilar pore sizes and porosity.

Casting of Metals Using Foam Filters:

The operating ethics of all sorts of metal casting procedures differs. There are some special characteristics are searched among the filters, while identifying the ideal ceramic filter. In most cases, filters with resistance to molten metal erosion and corrosion, high strength and temperature, along with better pass rate, etc are preferred. These properties define the quality operations through filtration and purification of casting metal liquid as well as during metallurgy. The selection of sic ceramic foam filter or ceramic filter for Steel and other metal castings are done on this basis.

During the filtration process, the flow of molten metal goes through the foam ceramic porous arrangements. The mixture of molten metal filtered and prepared to meet the super grade of fineness uniformly. In this way, erosion of the sand mold also corrected and the entire process eradicates the concerns of product obsolescence.

Different Types of Metal Casting Procedures and Filters:

1. Alumina – It is used through the alumina or aluminium alloy casting processes. In an average, the filters have to indicate 80 to 90 percent open porosity along with compliance with 1200 degree Celsius working temperature.
2. Silicon Carbide – Mostly for iron or iron alloy casting needs, it is considered as the ultimate option. Here, the working temperature rises up to 1500 degree Celsius.
3. Zirconium Oxide – This is the best selection for steel or stainless steel casting processes. Also it is used through the synthetic steel casting methods. The 1750 degree Celsius working temperature along with a bit more compressive and bending strength attained using it.

There are many differences found through the chemical and mechanical traits of the ceramic foam materials. It completely depends upon the casting metal type.

About Author:-

Tao Lu is an expert chemical engineer and has years of experience in producing ceramic foam filter with leading agencies. His tips on use of ceramic filter help the manufacturers to boost their productivity essentially. He also reviews and shares the benefits of using ceramic filter for Steel and SiC ceramic foam filter in different foundries.

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.