{"id":18123,"date":"2022-08-26T03:16:08","date_gmt":"2022-08-26T03:16:08","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=18123"},"modified":"2022-08-26T03:30:58","modified_gmt":"2022-08-26T03:30:58","slug":"ceramic-porosity-size","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/ru\/ceramic-porosity-size\/","title":{"rendered":"ceramic porosity size"},"content":{"rendered":"
    \n
  1. The aluminum melt contains a lot of impurities, and the quality requirements of the casting products are general.\u00a0 How to choose the ceramic porosity<\/a> size is also very important.\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 (1)You can choose a foam ceramic filter with a larger hole mesh and add a glass cloth in front of the filter plate for coarse filtration. Selection of ceramic porosity size. In this case, it is important to use glass wool cloth for coarse filtration when casting aluminum melt semi-continuously, which can intercept the slag flowing out when the furnace is opened and the slag washed off from the launder to prevent the filter plate from being blocked.
    \n\u2461When the quality requirements of casting products are high, a new generation of foam ceramic filter plates with large mesh numbers is used. For example, Fujian Ruimin Aluminum Co., Ltd. and Nanfang Aluminum Co., Ltd. produce aluminum foil blanks, and Henan Mingtai Aluminum Co., Ltd. produces high-quality Hot-rolled slab Northeast Light Alloy Co., Ltd. produces high-quality military aluminum, and Guangdong Zhongshan Hesheng Aluminum Co., Ltd. uses the second-generation foam ceramic filter produced by Fuzhou Maitexin High-Temperature Material Co., Ltd.
    \n\u2462 The selection of filter plate specifications is determined according to the flow rate of aluminum melt per unit time and the total throughput of aluminum melt. Selection of ceramic porosity size. If the flow rate is large and the total throughput is large, and the aperture of the filter plate is small, the larger size filter plate is selected.<\/p>\n
    \"ceramic
    ceramic porosity<\/figcaption><\/figure>\n

    (2) When purchasing a filter plate, the effective specific surface area or pores of the foam should be carefully evaluated to observe the uniformity of the mesh on the surface of the filter plate, and then cut open to observe the mesh uniformity of the section. If possible, the porosity can be calculated by the drainage method. If the three-dimensional mesh is uniform and the porosity is relatively large, it is an excellent foam ceramic filter plate.
    \n(3) When choosing a filter plate, you should also observe its color, shoot its body, and burn its objects.
    \nThe color of the filter plate is pure and free of impurities, indicating that the material is uniform; it is sticky but not sticky, indicating that the surface is not sprayed with adhesive, which will not cause secondary pollution of aluminum liquid.
    \nHold the filter plate with one hand, slap the filter plate with the other palm, and continuously drop the ceramsite, which means that the inferior filter plate will cause secondary pollution of molten aluminum.
    \n\u2462 Use an open flame or electric heating to heat the filter plate to red and immediately cool it at room temperature without cracking and slag, it is a good filter plate
    \n4 Conclusion
    \nFoam ceramic filtration is the last step in the purification of aluminum melt. It is particularly important to choose the second-generation foam ceramic filter plate. It is particularly important to prevent the molten aluminum from leaving the filter box and then solidifying and forming. Secondary staining of the body. In this process, the flow tank, head box, distribution plate, and hot cap made of fused silica ceramic sintered with long life, high strength, non-stick aluminum, and good heat preservation are used, and dehumidified and cleaned in time to eliminate possible The source of pollution cannot be ignored to ensure the cleanliness of the aluminum melt.<\/li>\n<\/ol>","protected":false},"excerpt":{"rendered":"

    The aluminum melt contains a lot of impurities, and the quality requirements of the casting products are general.\u00a0 How to choose the ceramic porosity size…<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[13242],"class_list":["post-18123","post","type-post","status-publish","format-standard","hentry","category-blog","tag-ceramic-porosity"],"yoast_head":"\nceramic porosity size, ceramic porosity, ceramic porosity<\/title>\n<meta name=\"description\" content=\"The aluminum melt contains a lot of impurities, and the quality requirements are general. 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