A fiberglass mesh filter is made of high-temperature resistant glass fiber material. It is mainly used to filter impurities, slag and oxides in molten metal (such as molten iron, molten steel, molten aluminum, etc.) in the casting process. It captures solid particles in the molten metal by physical interception, thereby improving the purity of the molten metal, reducing defects in castings (such as pores, slag inclusions, etc.), and improving the quality and yield of castings.
Features of glass fiber filter
- High-efficiency filtration: The glass fiber mesh filter can effectively capture tiny impurities and slag in the molten metal to ensure the purity of the molten metal.
- High-temperature resistance: The glass fiber material has excellent high-temperature resistance and can withstand the impact of high-temperature molten metal. It is suitable for a variety of casting processes.
- Good air permeability: The porous structure of the filter allows gas to pass smoothly, reducing gas residues in the molten metal and reducing the generation of pores in the casting.
- Easy to install and use: The glass fiber filter is usually designed in sheet, cap or cylinder shape, which can be directly installed in the casting system and is easy to use.
- Economical and practical: Glass fiber filters have low costs and can significantly improve the quality of castings, with high cost performance.
Application scenarios of glass fiber filters
- Aluminum alloy casting: In aluminum alloy casting, glass fiber mesh filters are used to filter oxides and impurities in aluminum water to improve the surface finish and mechanical properties of castings.
- Cast iron and cast steel: In cast iron and cast steel processes, filters are used to filter slag and impurities in molten iron or steel to ensure the purity of castings.
- Other metal castings: Glass fiber filters are also suitable for casting processes of other metals such as copper alloys and magnesium alloys.
Types of Fiberglass Mesh Filters
Flake filters:
It is flat and suitable for the pouring system of small and medium-sized castings.
Easy to install, can be placed directly in the pouring cup or runner.
Cap filters:
It is cap-shaped and usually installed at the bottom of the pouring cup.
Suitable for casting processes that require higher filtration accuracy.
Cylinder filters:
It is cylindrical and usually used in the pouring system of large castings.
Suitable for high-flow, high-demand casting processes.
Advantages of Fiberglass Mesh Filters
- Improve casting quality: Reduce casting defects by filtering impurities and slag.
- Reduce production costs: Reduce scrap rate and improve production efficiency.
- Environmental protection and energy saving: Reduce metal waste, in line with the concept of green casting.
- Wide applicability: Can be used for a variety of metal materials and casting processes.
Precautions for use
- Choose appropriate specifications: Choose a filter with appropriate size and filtration accuracy according to the casting process and the flow rate of the molten metal.
- Proper installation: Ensure that the filter is firmly installed to prevent the molten metal from bypassing the filter and directly entering the mold.
- Avoid direct impact of high temperature: During the pouring process, try to avoid direct impact of high-temperature molten metal on the filter to extend its service life.
- Storage environment: Glass fiber filters should be stored in a dry and ventilated environment to avoid moisture or damage.
Conclusion
Fiberglass mesh filters are commonly used filtering devices in casting processes, which can effectively improve the purity of molten metal, reduce casting defects, and improve casting quality. Its high temperature resistance, high efficiency filtration and economical and practical characteristics make it widely used in casting processes such as aluminum alloy, cast iron, and cast steel. Correct selection and use of glass fiber filters can significantly improve casting efficiency and product quality.