Metal Casting Filters can effectively remove various inclusions in the aluminum water with a fineness of micrometers.
Make the aluminum water into a smooth laminar flow, which is conducive to flushing, good mechanical strength and chemical stability, and superior aluminum water erosion resistance.
Strictly controlled hole size and through hole rate can obtain stable filtration effect.
There is a sealing ceramic fiber liner around the Metal Casting Filters, which helps to seal the filter in the filter box and ensure that there is no side flow of metal liquid.
What kind of material can withstand the corrosion of molten aluminum for a long time?
Alumina ceramics is a ceramic material with α-Al2O3 as the main crystal phase.
The content of Al2O3 is generally between 75% and 99.9%.
It is usually classified by the content of Al2O3 in the ingredients.
About 75% of the content is “75” porcelain, the content of 85% is “85” porcelain, the content of 95% is “95” porcelain, and the content of 99% is “99” porcelain.
Alumina has a melting point of 2050℃, which can resist the erosion of molten metals such as Be, Sr, Ni, Al, Fe, Ta, and Mn. It also has high resistance to erosion of NaOH, glass and slag. Does not interact with Si, Sb, Bi in an inert atmosphere. Therefore, it can be used as refractory materials, furnace tubes, glass drawing crucibles, hollow balls, fibers, thermocouple protective covers, etc.
Metal Casting Filters must be placed as close to the casting as possible to obtain maximum filtration efficiency and flow adjustment.
Considering practical factors, such as the position that can be placed in the mold and the design of the gating system, the filter is often placed in the runner.
Sometimes the filter is placed at the bottom of the sprue, but this is not recommended.
Because the filtering effect and the flow of the Alumina Ceramic Foam Filter will be affected by the turbulence from the bottom of the sprue to the runner.
When using a ceramic foam filter, the pore size of the filter should be determined according to the quality requirements of the casting and the number of inclusions in the molten metal.
According to the pouring speed and pouring weight to determine the size of the filter.
In order to ensure the filtering effect of the filter, the placement of the filter, the design of the gating system should also follow certain specifications.
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