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  • Analysis on forming mechanism of slag inclusion defect of steel castings in epc

    Analysis on forming mechanism of slag inclusion defect of steel castings in epc

    1 The prevalence of slag inclusion defects in steel castings with epc   It is very difficult to produce steel castings with lost mold. At present, most of them are wear-resisting, heat-resisting and corrosion-resisting castings without processing or less processing, or some other thin-wall c...
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  • The forming process of inclusion defect in epc casting

    The forming process of inclusion defect in epc casting

    1 Inclusion defects in epc castings   Inclusion defects in epc castings are very common. Inclusion defects in epc castings often greatly reduce the properties of castings. At the same time, due to the irregular shape of inclusion, it may cause cracks or even cracks in castings during service...
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  • Research on production cost analysis and control of investment casting

    Research on production cost analysis and control of investment casting

    Investment casting production mainly includes four processes: module preparation, shell preparation, alloy melting and casting post treatment. Because the process method is not only various processes, product flow Complex, long production cycle, and the casting process is very professional. Th...
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  • Effect of white latex and silica sol compound binder on properties of lost mold casting coatings for cast iron

    Effect of white latex and silica sol compound binder on properties of lost mold casting coatings for cast iron

    With the development of China’s foundry industry, it is not only necessary to provide high quality and precision castings for the equipment manufacturing industry, but also to achieve the province of materials, less energy consumption, low pollution, and achieve sustainable development. Lo...
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  • EPC process is used to produce high quality carbon steel castings

    EPC process is used to produce high quality carbon steel castings

    EPC has good casting quality and low cost. Material is not limited, size is appropriate; High dimensional accuracy, smooth surface; Less internal defects, dense tissue; It can be achieved on a large scale, mass production; It can greatly improve the working environment, reduce labor intensi...
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  • Application practice of complete equipment of vanishing mold

    Application practice of complete equipment of vanishing mold

    1 Implementation steps of EPC production process EPC technology is the key and equipment is the guarantee. (1) Preliminary investigation work The preliminary investigation work is divided into two aspects: first, to understand the knowledge about EPC from the Internet and professional books; The...
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  • Optimization design of large ductile iron casting process

    Optimization design of large ductile iron casting process

    1 Casting defects of large ductile iron parts Shrinkage hole, shrinkage porosity, slag inclusion, air hole, peeling, deformation and so on are common casting defects in sand casting of large ductile iron. These common casting defects are usually affected by the following factors. For large du...
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  • Mechanism and prevention of carbon increase on the surface of lost die casting steel

    Mechanism and prevention of carbon increase on the surface of lost die casting steel

    Surface carburization of steel castings by EPC has always been a controversial topic. A lot of experiments have been carried out on whether EPC is suitable for producing steel castings, especially low carbon steel castings. (1) the phenomenon and mechanism of carburization Surface carburization ...
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  • Application of rapid prototyping technology in investment precision casting

    Application of rapid prototyping technology in investment precision casting

    In recent years, with the gradual improvement of China’s market economy system and the rapid improvement of the country’s comprehensive strength, aerospace and national defense science and technology began to become the national key development industry. Space exploration, national d...
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  • Preventing methods of common casting defects of cast iron

    Preventing methods of common casting defects of cast iron

    1 Air hole Characteristics: The pores in the casting are the smooth holes of different sizes that exist on or near the surface of the casting. 1.1 Intrusive stomata The number of these pores is small and the size is large. They are pear shaped or spherical in some parts of the outer surface of th...
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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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