{"id":1140,"date":"2020-06-05T09:20:57","date_gmt":"2020-06-05T09:20:57","guid":{"rendered":"https:\/\/aluminiumceramicfiber.com\/?p=1140"},"modified":"2020-10-28T02:25:10","modified_gmt":"2020-10-28T02:25:10","slug":"ceramic-foam-filter-canada","status":"publish","type":"post","link":"https:\/\/www.aluminiumceramicfiber.com\/ar\/ceramic-foam-filter-canada\/","title":{"rendered":"\u0645\u0631\u0634\u062d \u0627\u0644\u0631\u063a\u0648\u0629 \u0627\u0644\u062e\u0632\u0641\u064a - \u0643\u0646\u062f\u0627"},"content":{"rendered":"

Ceramic foam filter Canada uses polyurethane foam as a carrier, filled with ceramic slurry made of refractory aggregate sintering aids, binders and other fine powders and water, and then squeezes the slurry ceramic material around the foam fiber.<\/p>\n

After drying, firing and sintering at high temperature, the polyurethane is decomposed by heat, leaving foamy ceramic products, that is, foam ceramic filters.<\/p>\n

The ceramic material used for the filtration of molten metal has a very high melting point and will not melt during casting or decompose into the molten metal.<\/p>\n

The number in front of ppi represents the pore density of the product. If the model is 10ppi, it means that the uniformity of the pores on any 25.4mm length is 8-12.<\/p>\n

\"\u0645\u0631\u0634\u062d<\/p>\n

Ceramic Foam Filter Canada Filtration Mechanism<\/strong><\/p>\n

Screening<\/strong><\/p>\n

Just like a sieve, it prevents foreign particles and aggregates larger than the pore size of the filter surface from passing through.<\/p>\n

Cake filter<\/strong><\/p>\n

After screening, many inclusions larger than the pores of the filter are trapped at the inlet end of the filter.
\nAs the number of trapped inclusions increases, a large cake of inclusions is formed on the surface of the filter inlet end.
\nThe \u201cfilter cake\u201d makes the liquid thinner, so that the inclusions smaller than the pore size of the filter are also partially caught on the \u201cfilter cake\u201d.<\/p>\n

Deep bed filtration<\/strong><\/p>\n

Inside the \u0645\u0631\u0634\u062d \u0633\u064a\u0631\u0627\u0645\u064a\u0643\u064a \u0631\u063a\u0648\u064a<\/a>, the path through which the melt flows is tortuous, and there is even a phenomenon of cross flow in a small local area. This mainly plays two roles:
\n1. The probability that particles can contact the filter.
\n2. Make the melt flow velocity and flow direction change faster, so that the fine inclusions in the melt can be left behind in a corner after being collided and caught by the straight hole filter slag (screening) ceramic foam filter Filter cake and deep filter bed of slag blocking (screening) foam ceramic filter<\/p>\n

Function of Ceramic Foam Filter<\/strong><\/p>\n

\u2022 Removal of impurities and slag: purification of molten metal and simultaneous degassing (adjustment of turbulence):
\n-After filtering, the viscosity of the molten metal decreases and the fluidity of the aluminum alloy liquid increases by 10% -15%. Therefore, filtration improves the filling ability of the molten metal.
\n\u2013The metal melt flow is turbulent before filtering, and becomes laminar after filtering (the tortuous bend in the flow path of the foam ceramic filter), which reduces the gas volume and secondary slag formation;
\n-As the filtration proceeds, the filtration mechanism ranges from sieving, filter cake to deep bed filtration, and the purity of the filtered metal liquid is getting higher and higher (without exceeding the filtration capacity of the ceramic foam filter)
\n\u2022 The scrap rate of parts is reduced,
\n\u2022 Part cutting performance improved
\n\u2022 The mechanical properties of the material are significantly improved, especially the elongation.<\/p>\n

Selection of Filter Size<\/strong><\/p>\n

\u2022 Step: Calculate the minimum cross-sectional area of \u200b\u200bthe sprue
\n\u2022 Step 2: Calculate the sum of the cross-sectional area of \u200b\u200bthe cross-runner and the cross-sectional area of \u200b\u200bthe inner runner,
\n\u2022 The third step: determine the placement and number of filters;
\n\u2022 Step 4: According to the filtration speed of the filter per unit area, the filtration capacity of the filter per unit area, the actual pouring speed and the weight of the molten metal passing through the filter and the purity of the molten metal
\nThe size of the filter (if the liquid metal is too pure, multi-stage filtration is required).
\nNamely: the filtering speed of the filter> the pouring speed of the metal liquid The filtering capacity of the filter> the amount of the metal liquid inclusions<\/p>","protected":false},"excerpt":{"rendered":"

Ceramic foam filter Canada uses polyurethane foam as a carrier, filled with ceramic slurry made of refractory aggregate sintering aids, binders and other fine powders and water, and then squeezes the slurry ceramic material around the foam fiber. After drying, firing and sintering at high temperature, the polyurethane is decomposed by heat, leaving foamy ceramic […]<\/p>\n","protected":false},"author":1,"featured_media":3743,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[44,85],"tags":[2258,2246,2248,2269,2260,2266,2254,2257,1319,2247,2267,2249,2261,2262,2268,2245,2251,2255,2256,2263,2253,2264,2259,2250,2252,2265],"class_list":["post-1140","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ceramic-foam-filter","category-seo","tag-ceramic-foam-filter-achinsk","tag-ceramic-foam-filter-alscon-aluminum","tag-ceramic-foam-filter-alucam-aluminum","tag-ceramic-foam-filter-aluko-smelter","tag-ceramic-foam-filter-alum-tulcea","tag-ceramic-foam-filter-asas-aluminyum","tag-ceramic-foam-filter-aughinish","tag-ceramic-foam-filter-bogoslovsk","tag-ceramic-foam-filter-canada","tag-ceramic-foam-filter-egyptalum-aluminum","tag-ceramic-foam-filter-el-aluminium","tag-ceramic-foam-filter-hillside-aluminium","tag-ceramic-foam-filter-malaysian-aluminium","tag-ceramic-foam-filter-masters-india","tag-ceramic-foam-filter-metal-smelter","tag-ceramic-foam-filter-mozal-aluminum","tag-ceramic-foam-filter-mozambique-aluminium-smelter","tag-ceramic-foam-filter-mytilineos","tag-ceramic-foam-filter-nikolaev","tag-ceramic-foam-filter-recialum","tag-ceramic-foam-filter-san-ciprian","tag-ceramic-foam-filter-sg-aluminyum","tag-ceramic-foam-filter-urals","tag-ceramic-foam-filter-valco-aluminum","tag-ceramic-foam-filter-volta-aluminium","tag-ceramic-foam-filter-zodiac"],"yoast_head":"\nCeramic 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