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  • Common defects and prevention methods of foaming mold used in EPC casting

    Common defects and prevention methods of foaming mold used in EPC casting

    In order to obtain high quality castings in EPC, it is necessary to have high quality EPC. The causes and prevention methods of common defects in foaming patterns are introduced. 1. The appearance is not complete and the outline is not clear Causes: (1) Insufficient bead quantity, incomplete fill...
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  • Preliminary study on lost mold casting technology

    Preliminary study on lost mold casting technology

    EPC technology, referred to as “the EPC, also known as gasification casting or mold casting, is the traditional wooden and other regular shape to switch to plastic foam shape instead of an entity, a firm of modelling, this kind of casting method, after making good blank, don’t remove ...
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  • New development of feeding riser for ductile iron

    New development of feeding riser for ductile iron

    The performance of ductile iron castings depends on the properties determined by the microstructure on the one hand, such as the number of graphite spheres, the rate of spheroidization and the metal matrix, and on the presence of macroscopic and microscopic shrinkage holes in the castings on the ...
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  • Process control of silica sol casting

    Process control of silica sol casting

    Silica sol casting refers to the casting method that is made of fusible material, coated with several layers of refractory material to make molded shell, melted out of shape after high temperature roasting, and can be cast. The process of silica sol casting: 1. Mold Manufacturing A die is a mold ...
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  • Microstructure analysis of silicon sol investment casting shell

    Microstructure analysis of silicon sol investment casting shell

    High quality precision castings with smooth surface and clear edges and corners need to be manufactured by high quality investment casting shell.In the process of investment casting shell making, silica sol has become a common water-based binder in investment casting because it does not need chem...
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  • Application of silica sol in precision casting

    Application of silica sol in precision casting

    Precision casting is the development direction of modern industrial forging, no cutting, high surface finish, high precision and other complex parts and assemblies that are difficult to process The manufacturing technology has created a broad application prospect;The military and aerospace produc...
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  • Quality control of silica sol coating for investment precision casting

    Quality control of silica sol coating for investment precision casting

    In the process of ensuring casting quality, in addition to the formulation of reasonable and scientific manufacturing technology, it is more important to strictly control the quality of silica sol coating, so as to ensure the quality of casting.Through the strict control of coating parameters, co...
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  • Application of precision casting technology in production

    Application of precision casting technology in production

    There are many kinds of precision casting process, mainly including investment casting technology, metal mold casting technology, pressure mold casting technology, lost mold casting technology, etc., but the most commonly used is investment casting technology.Through the comparison and analysis o...
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  • Solving the common defects of sand and slag in vanishing mold

    Solving the common defects of sand and slag in vanishing mold

    In vanishing mold products, common defects mainly include sand inclusion and slag inclusion. In order to solve the defects of sand inclusion and slag inclusion, it is necessary to systematically and comprehensively analyze the causes of the defects, so as to better develop corresponding measures....
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  • Analysis of Defects of Investment Casting

    Analysis of Defects of Investment Casting

    Investment casting is characterized by complex process, many processes, many factors affecting casting quality and various raw and auxiliary materials. It is not easy to control the quality of investment casting and affects the quality of casting to different degrees. 1. Casting dimension is out ...
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  • Discussion on common defects of steel castings in EPC and prevention measures

    Discussion on common defects of steel castings in EPC and prevention measures

    1. Carburization defect Produces the main reason for the increased carbon defects: bubble shape material is mainly composed of carbon and hydrogen, sharp break down under the high temperature liquid steel, hydrogen and free of carbon, due to the strong affinity ability is carbon, hydrogen and oxy...
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  • Causes and preventive measures of porosity defects in castings

    Causes and preventive measures of porosity defects in castings

    Bore hole is a common casting defect, its shape is generally spherical, oblate or strip.The reason for the formation of pores is that the local gas pressure in a certain part of the casting exceeds the metal pressure when the metal liquid solidifies.Gas always flows along the path of least resist...
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