In metal casting, one of the most common causes of defects is the presence of non-metallic inclusions. These inclusions are typically found in just about any metal and usually affect the deformation properties of the metal, subsequently defining the final quality of the finished product.
While conventional gating systems in combination with generously dimensioned runner bars retain some amount of slag, you need excellent filters to achieve the high standards of modern castings.
Ceramic metal filtration products for investment casting from a leading manufacturer like Applied Ceramics are a great choice in just about any type of metal casting, thanks to their excellent volume of porosity and high surface area to trap inclusions.
Here are the top reasons why you should pick ceramic filters for molten metal filtration:
1. Excellent Filtration Efficiency
Unlike other types of filters for molten metal, ceramic filters have a highly porous design that gives them a sufficiently large surface area for filtration. Their pores are sized perfectly, allowing an excellent flow rate of molten metal while effectively capturing impurities.
As a result, these filters have a highly efficient filtration performance and are great for guaranteeing high-quality products.
2. High Temperature Resistance
Some metals have to be melted and molded at high temperatures, and that calls for filters that can work perfectly in such conditions. Ceramic filters are a good choice for molten metal filtration processes that require a high-temperature resistance.
With an ability to withstand temperatures of up to 1700°C, they won’t decline performance when exposed to high-temperature casting.
3. Versatility and Adaptability
In modern casting, the versatility of filters is a welcome feature since it makes them suitable for use in a wide scope of casting processes. It’s possible to customize ceramic filters so they are ideal for specific casting requirements, ensuring maximum flexibility and adaptability for casting processes.
Thanks to their flexibility and adaptability, they are also ideal for both ferrous and non-ferrous filtration processes and can be integrated at different stages of the filtration process.
4. Chemical Resistance
Another top reason for using ceramic filters in molten metal filtration is their high resistance to chemical reactions that will easily corrode other filter materials. Ceramic filters can withstand corrosive environments without having a reduced performance, making them perfect for effective and reliable filtration.
Additionally, ceramic filters are chemically stable and aren’t known to react with any metals, thus they won’t change the chemical composition of your products. That way, you can be sure your production quality will remain consistent even as your filters get older.
5. Better Scrap Control
A good majority of foundries have trouble managing scrap at the end of filtration processes but this is an issue that can be resolved by employing ceramic filters. In a study done to determine how effective ceramic filters are in scrap control, foundries saw an average drop in scrap rates by as much as 40% and an increase in yields by about 10%.
Ceramic filters contribute to these achievements through the removal of impurities like oxides, so that the impurities won’t contribute to an increased scrap rate.
6. Lower Environmental Pollution
If you are keen on using sustainable manufacturing processes, then you will be happy to know that ceramic filters are a good choice for environmentally friendly molten metal filtration processes. They are highly durable, all thanks to their mechanical strength and consistency in production quality.
The impressive durability means you’ll only have to discard your filters after a very lengthy period of use.
In Summary,
Ceramic filters have lots of benefits that ultimately result in heightened production quality and make them superior to other filters in the market. Thanks to benefits like great temperature control, these filters contribute to secondary benefits like steady solidification of the molten metal.
Therefore, as long as you are getting your filters from a reliable manufacturer like Applied Ceramics, you will see a great improvement in your production quality.
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