{"id":5541,"date":"2019-08-13T05:47:52","date_gmt":"2019-08-13T05:47:52","guid":{"rendered":"http:\/\/www.adtechamm.com\/?p=5541"},"modified":"2019-08-13T05:47:52","modified_gmt":"2019-08-13T05:47:52","slug":"alumina-molten-metal-filter","status":"publish","type":"post","link":"https:\/\/www.adtechamm.com\/tr\/alumina-molten-metal-filter\/","title":{"rendered":"Al\u00fcmina Erimi\u015f Metal Filtresi"},"content":{"rendered":"

Al\u00fcmina Erimi\u015f Metal Filtresi<\/strong><\/p>\n

Alumina Molten Metal Filter can effectively remove a large amount of inclusions in the aluminum liquid, adsorb micron-sized fine inclusion particles, improve surface quality, improve product performance, improve microstructure and increase yield.
\nIt is widely used in the production of aluminum profiles, aluminum foil and aluminum alloys.<\/p>\n

Alumina Molten Metal Filter production process<\/strong>
\n\u015eu Y\u00fcksek Kaliteli K\u00f6p\u00fck Filtre<\/a> is connected to the pores as a carrier by a three-dimensional network structure and an organic foam sponge, infiltrated into a special ceramic slurry having thixotropic properties, and uniformly coated with a ceramic slurry by a special roll extrusion process. Covered on the ceramic slurry. Carrier’s skeleton.
\nThen, it is dried and solidified, and then fired at a high temperature.
\nPorous Ceramic Foam Filter Foam Ceramic Filter for Aluminum Alloys Since the first study in 1978, foam ceramic filtration technology has developed rapidly.
\nThe porous ceramic foam filter uses a polyurethane foam as a carrier, is immersed in a coating made of a ceramic powder, a binder, a sintering aid, a suspending agent, etc., and then extrudes the excess coating to uniformly coat the ceramic coating. Apply to the carrier.
\nThe skeleton turns into a green body, and the green body is dried and fired at a high temperature.<\/p>\n

How to use Alumina Molten Metal Filter<\/strong>
\n1. Filtre kutusunu temizleyin.
\n2. Gently place the filter plate into the filter cartridge and press the sealing gasket around the filter plate to prevent the aluminum liquid from flowing.
\n3. Evenly preheat the filter box and filter plate to bring it close to the temperature of the aluminum liquid. Preheat to remove moisture and promote initial transient filtration. Preheating can be carried out using electric heating or gas heating. Under normal circumstances, it takes about 15-30 minutes.
\n4. Pay attention to the change of the aluminum hydraulic head during the casting process. The normal starting head is 100-150 mm. When the aluminum liquid begins to pass, the indenter will drop below 75-100 mm and the indenter will slowly increase.
\n5. Avoid knocking and vibrating the filter plate during normal filtration. At the same time, aluminum water should be injected into the water tank to avoid too much interference from the aluminum water.
\n6. After filtering, remove the filter plate and clean the filter cartridge in time.<\/p>\n

Alumina Molten Metal Filter Transmittance<\/strong>
\nTransmittance refers to the effective filtration area of \u200b\u200ba foamed ceramic filter plate product.
\nThe higher the light transmittance, the fewer blind holes, the more effective the filter holes (potholes), the better the filtration effect.
\nPlace the ceramic filter plate to be inspected on a light box with a built-in 200W incandescent bulb.
\nThe area of \u200b\u200bthe large surface of the filter plate was measured using a square transparent plastic plate having a uniform 5.0 x 5.0 mm square to calculate the test.
\nFiltre plakas\u0131n\u0131n \u0131\u015f\u0131k ge\u00e7irgenli\u011fi, filtre plakas\u0131n\u0131n \u0131\u015f\u0131k ge\u00e7irgenli\u011fini belirlemek i\u00e7in kullan\u0131l\u0131r.
\nBu standartta, filtre plakas\u0131n\u0131n ge\u00e7irgenli\u011fi (delik ge\u00e7i\u015f oran\u0131) 95% veya daha fazla olarak belirtilmi\u015ftir.<\/p>\n

\"Al\u00fcmina<\/p>\n

Alumina Molten Metal Filter Porosity<\/strong>
\nG\u00f6zeneklilik, filtre plakas\u0131 \u00fcr\u00fcn\u00fcndeki bo\u015flu\u011fun toplam hacminin, filtre plakas\u0131 \u00fcr\u00fcn\u00fcn\u00fcn toplam hacmine oran\u0131n\u0131n y\u00fczde olarak ifade edilmesidir.
\nPorosity determines the filtration capacity per unit volume of ceramic foam filter plates.
\nPorozite ne kadar y\u00fcksekse, filtre plakas\u0131n\u0131n filtrasyon ak\u0131\u015f h\u0131z\u0131 o kadar y\u00fcksek olur ve filtrasyon kapasitesi de o kadar g\u00fc\u00e7l\u00fc olur.<\/p>\n

\u015eu anda g\u00f6zeneklili\u011fi belirlemeye y\u00f6nelik iki temel y\u00f6ntem bulunmaktad\u0131r.
\nOne is to calculate the volume of the filter plate hole according to Archimedes’ law, that is, to inject water into the glass beaker with an overflow pipe until the water flows out from the overflow pipe.
\nSu art\u0131k d\u0131\u015far\u0131 akmad\u0131\u011f\u0131nda, su tahlil edilecektir.
\nAll samples were gently placed in water, then water was drained from the overflow tube and the amount of water in that portion was measured.
\nThe volume of overflow water is subtracted from the physical volume of the filter plate, which is the total volume of the holes in the filter plate.
\nAnother method is to determine the true density and bulk density of the sample to be tested, respectively, and then calculate the porosity of the sample according to the following formula.
\nBoth methods have their pros and cons.
\nThe operation method is simple and convenient, and the detection speed is fast, but its fatal disadvantage is that the drainage capacity is smaller than the actual displacement due to the water absorption property of the filter plate material itself. This causes the measurement data to be too small.
\nAlthough the testing process of the second method is complicated, the influence of the water absorption rate of the filter plate material is excluded during the test, and the obtained data is relatively accurate.
\nBu standartta, g\u00f6zeneklilik indeksi 84%\u2019den b\u00fcy\u00fck olarak belirlenmi\u015ftir.<\/p>\n