High Strength Ceramic Filter Aluminium Casting

02 8月 High Strength Ceramic Filter

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High Strength Ceramic Filter

High Strength Ceramic Filter with Cpressive Strength
In the process of transportation and use of the filter plate, the filter plate must withstand the impact of a certain pressure from the outside.
So the index of compressive strength is also introduced in the standard as one of the basis for measuring the quality of the filter plate. The higher the compressive strength, the more durable the product, the better the quality, and vice versa.
In this standard, the index of compressive strength is determined to be 0.5 MPa or more.

High Strength Ceramic Filter

High Strength Ceramic Filter reduce gas and inclusions that are contained in the casting, reduce the turbulence level of molten metal when filling the mold, reduce surface defects in castings, and significantly reduce the rejection rate of casting
Increase the compressive sealing of casting, increase elongation and tensile strength of casting, improved surface finish of casting, improve the mobility of molten metal, increase the filling capacity and the feeding capacity of melt.
Simplify the casting system, reduce the length of the lateral flow channel, improve casting yield.
Reduce the processing time and tool abrasion, improve surface quality of casting.
Ceramic foam possesses high mechanical strength, chemical stability, high resistance to thermal shock and liquid metal flow shock even under high temperature environment.
No slag or broken in working process, to ensure the quality and stable chemical composition of the molten metal.
Has a large and stable metal flow, even if the high content of inclusions in molten metals, ceramic foam filter will not be plugged.ery high dimensional accuracy, can be automatically placed in production line.
Adtech has Zirconia Ceramic Filte

Thermal shock resistance of High Strength Ceramic Filter
Thermal shock resistance refers to the resistance of foam ceramic filter plates to damage caused by rapid temperature changes.
During the use of the foam ceramic filter plate, we require the user to start the filtration when the filter plate is gradually preheated to the temperature of the filtered aluminum melt before use
But some users do not follow this well when using it.
It is stipulated that after the filter plate is placed, the melt is filtered without preheating, so that the filter plate is required to have a certain thermal shock resistance.
The better the thermal shock resistance, the more durable the filter plate and the better the quality.

High Strength Ceramic Filter Pore uniformity
Pore uniformity is used to describe the difference between the number of actual holes per 25.4 mm length in the filter plate product and the number of theoretically required holes.
The smaller the gap, the better the product quality, and the gap is too large, which will result in the ability of the filter plate product to reduce the impurity retention or the slow filtration rate of the melt, which can not meet the individual requirements of the user’s production.
The size of the pore uniformity mainly depends on the foam used in the production of the filter plate. The uniformity of the pores of the foam is good, and the uniformity of the pores of the filter plate is good, so the selection of the foam is extremely important.

How to choose Ceramic Filter
The Alumina Porous Filter specification is selected according to the unit time flow and total amount of liquid per unit time.
According to the cleanliness requirements of the final aluminum liquid, the Alumina Porous Filter is used. The higher the cleanliness requirement of the aluminum liquid, the smaller the selected pore size, which puts new demands on the structure and material of the foam ceramic filter.