Application of Honeycomb Ceramic Filter Plate
- Honeycomb ceramic filters are widely used in the filtration of metal melts in the metallurgy and foundry industries. They are made of mullite (cordierite) ceramic material and high-quality and high-density straight-hole mesh, making the product highly resistant to thermal shock and high fever.
- Characteristics of casting temperature, straight hole design ensures the balance between flow and strength, effectively removes impurities and slag particles, and greatly improves the mechanical properties, surface quality and product qualification rate of castings.
Using ceramic filters has the following filtration benefits:
- 1) Casting structure: Filter out inclusions in castings, reduce gases in castings, reduce turbulence in the metal flow during mold filling, and reduce surface defects in castings. Significantly reduce casting scrap rates. Casting properties: Increase the pressure sealing of castings, enhance elongation and tensile strength, and improve the surface finish of castings. Casting performance: Improve the fluidity of molten metal and increase the filling and feeding capabilities of castings.
- 2) Gating system design: Simplified gating system design. The length of the lateral runner is reduced and the casting process is improved. Casting processing reduces processing time and tool damage, and improves the surface quality of casting processing. Its use can reduce scrap by 60-80%. Filter users can make annual profits of up to 10 million yuan. Purpose and advantages: Ceramic filters are the best purification functional components to eliminate casting defects and obtain high-quality castings. It can be used for in-mold filtration of various liquid metals in casting production.
Preparation features Application of Honeycomb Ceramic Filter Plate:
New ceramic materials have natural chemical adsorption (affinity) ability for oxides, and adsorb impurities in the metal liquid (including particles smaller than the pore size) on the inner walls of the pores, improving the filtration effect.
The advanced extrusion production process gives the ceramic filter a unique square and triangular design, which increases the contact area with the ceramic, improves the filter’s ability to adsorb and capture small impurities, and has a better filtration effect than non-extrusion filters. , the molten metal flows smoothly. Improved pouring speed and continuity;
reduced casting scrap rate; improved casting mechanical properties and extended service life.
3. Foam ceramic metal solution filter Foam ceramic filter product is a ceramic product with a foam-like porous structure made by a special process. It has stable chemical properties, high strength, high temperature resistance,
good thermal shock resistance, and high specific surface area. Large and many other advantages, it is widely used in metallurgy, casting, environmental protection and other fields.
product advantages:
- It has very high high temperature working strength, thermal shock resistance and resistance to metal flow impact. There is no slagging or cracking during work, ensuring the filtration quality of molten metal.
- It has extremely high room temperature strength and mechanical impact resistance. There is no cracking or damage during use and transportation, which greatly facilitates the use and operation of the filter.
- It has a very significant filtering effect. Much higher than the filtration effect of fiber filters. Its remarkable filtration effect is related to the speed criterion filtration mechanism.
- It can effectively reduce the turbulence of molten metal caused by pouring, make the mold filling smooth and avoid surface defects of castings.
- It has a large metal flow rate and a stable flow rate (unlike the foam ceramic filter whose flow rate gradually decreases as the number of captured inclusions increases). Even if there are a lot of inclusions in the molten metal, normal use will not cause clogging of the filter.
- It has high chemical stability, is not affected by the acidity and alkalinity of the metal liquid, and does not change the chemical composition of the metal liquid.
- It has very high dimensional accuracy and can be used in production lines where filters are placed automatically. The performance of ceramic filters is very obviously better than that of fiber filters. Fiber filters are inferior to ceramic filters in terms of filtration effect, reduction of turbulence of molten metal, and high temperature strength.
- Ceramic filters are the best filter materials selected by casting manufacturers to eliminate defects in castings from the aspects of practicality, reliability, quality and price. Materials: mullite, cordierite, high aluminum, carbonized Silicon etc.