Lanik Foam Ceramic Filter

22 يوليو مرشح «لانيك» الرغوي الخزفي

Posted at 08:29h in مرشح رغوي خزفي by تقنيات الإعلانات 0 Comments

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Lanik Foam Ceramic Filter should be based on the quality requirements of the casting and the number of inclusions in the molten aluminium to determine the pore size of the filter. The size of the filter is determined based on the pouring speed and pouring weight.
When choosing Foam Ceramic Filter, we must consider the following aspects
Casting material/pouring temperature/pouring head height/pouring volume/pouring time

من أجل ضمان فعالية الترشيح التي يوفرها المرشح، يجب أن يتوافق موقع المرشح وتصميم نظام البوابات أيضًا مع مواصفات معينة.
تركيب المرشح: يجب وضع المرشح في أقرب مكان ممكن من قطعة الصب لتحقيق أقصى كفاءة للترشيح وضبط التدفق.
وبالنظر إلى العوامل العملية، مثل الموضع الذي يمكن وضع المرشح فيه داخل القالب وتصميم نظام القنوات، غالبًا ما يتم وضع المرشح في القناة الرئيسية.
في بعض الأحيان، يتم وضع المرشح في الجزء السفلي من قناة الصب، لكن لا يُنصح بذلك.
Because the filtering effect and flow adjustment of the ceramic foam filter will be affected by the turbulence from the bottom of the sprue to the runner. It is recommended to install the filter vertically in the runner.

Overcurrent velocity of مرشح «لانيك» الرغوي الخزفي
Most of the castings with filter flow rate have a critical pouring time, which corresponds to the best pouring speed.
Pouring speed is usually derived from experience or observation of a large number of castings in a particular foundry.
In some foundries, by setting the cross-sectional area ratio of each part of the gating system (cross-sectional area of sprue: sum of cross-sectional area of runner: sum of cross-sectional area of inner gate) to ensure proper flow rate.
Various filter media show a certain degree of pressure drop because they greatly adjust the flow of molten iron.
In order to reduce the influence of the filter on the velocity of molten iron, the flow area of the filter should be much larger than the flow control area of the gating system.

Metal overflow before the filter is blocked. All filters have a limit metal overflow before they are completely blocked.
Due to the filtering out of the inclusions, the effective flow area of the filter is reduced and flow obstruction occurs.
In extreme cases, exceeding this limit can cause the flow through the filter to stop completely.
The flow capacity of the filter varies greatly with the inclusion content in the molten iron, the pouring temperature and the design of the pouring system.
The foundry can determine how much flow area the filter needs based on the flow value and the pouring weight of the casting.