Tensile test and impact test of nodular cast iron
The tensile test shall be carried out in accordance with gb/t 228-2002 tensile test method for metallic materials at room […]
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Low pressure sand casting of aluminum alloy complex thin wall parts
1. Selection of casting method The wall thickness of the casting is thin, the flow resistance of the molten metal
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QT500-14, QT600-10 High Silicon Ductile Iron
With the development of science and technology and the continuous innovation of cast iron production technology, the ductile iron grades
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Analysis of impact properties of 30CrNiMo steel castings
According to the results of chemical elements, the chemical composition of steel castings meets the requirements of ZG30CrNiMo steel in
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Metallographic structure change of melting layer of gray cast iron after laser shock
Fig. 1 corresponds to the cross-sectional morphology of the surface of gray cast iron melting layer after continuous impact of
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Experimental equipment for composite squeeze casting of large aluminum wheel hub
1. Large hydraulic press Composite squeeze casting is a new squeeze casting method proposed in. At present, there is no
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Application case of three-dimensional model for riser process of steel castings
Taking the profile bar on a track powered rolling car as an example, the material of the steel casting is
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Cooling curve of flake graphite cast iron and nodular cast iron
The cooling curves of typical flake graphite cast iron and nodular cast iron are shown in the figure. It can
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Effect of vibration on hardness of white cast iron
The figure shows the hardness change of white cast iron in lost foam casting with and without vibration. It can
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Test of nodular cast iron
As cast crankshaft castings with nodular cast iron trademark of QT800-2 are selected as the samples. After testing, the nodularity
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Sand mold low pressure casting of aluminum alloy complex thin wall parts
Aluminum alloy castings are widely used in railway, military, aerospace, automotive, medical and other fields because of their good comprehensive
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Physical and chemical inspection of 30CrNiMo steel castings
1. Fractograph The fracture morphology of impact sample was observed by Zeiss evo15 scanning electron microscope. The fracture morphology of
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Surface residual stress induced by laser shock in gray cast iron
Due to the temperature gradient generated in the process of laser melting of gray cast iron and the transformation of
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Process flow of composite squeeze casting
According to the definition of composite squeeze casting, the process flow of the composite squeeze casting forming method is as
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Effect of sample wall thickness on Microstructure of white cast iron
The picture shows the microstructure of white cast iron with different wall thickness. Among them, figures (a) – (c) are
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Experimental results and Discussion on casting properties of ZL116 aluminum alloy arm
The fracture is located at the root of the support arm on the casting, and the overall paint surface of
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Graphite transformation in laser melting layer of gray cast iron sample
When the temperature in the molten pool rises rapidly, the convection inside the molten pool is strong, which adds to
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Influence of unreasonable structure on casting process and mold design
When examining the casting process of cylinder head, it is necessary to avoid unreasonable structure affecting mold parting or casting
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Effective application of additive manufacturing technology in investment casting process of agricultural machinery
1. Manufacturing process All the technologies described above have different advantages. In this study, selective laser sintering technology is mainly
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Zl116 aluminum alloy support arm casting performance test materials and methods
Take 4N9 high-purity aluminum, 4N9 refined magnesium ingot, Al-5Ti, al-3be, Al-12Si master alloy and ZL116 alloy ingot as raw materials,
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Design optimization and application of grinding mould for casting cylinder head
The existing mould and the cast cylinder head with grinding problems are shown in Figure 1. As shown in Figure
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Non equilibrium solidification microstructure of laser melting layer of gray cast iron sample
In the process of rapid cooling of the molten pool, due to the extremely fast cooling speed, non-equilibrium solidification occurs
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Influence of cylinder head push rod hole structure on casting process
At present, there are two main structures at the push rod hole of diesel engine cylinder head. One is that
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Effect of vibration frequency on hardness of vermicular graphite cast iron
The figure shows the hardness change curve of vermicular graphite cast iron prepared under different vibration frequencies. It can be
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Effect of vibration frequency on matrix structure of vermicular graphite cast iron
The figure shows the matrix structure of cast iron prepared under different vibration frequencies. Figures (a) – (d) show the
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Development trend of bimetal centrifugal casting composite technology
In addition to composite rollers and composite pipes, ring parts such as bearing rings and flanges are used as key
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Phase and microstructure analysis of laser melting layer of gray cast iron sample
The surface structure of untreated gray cast iron sample is pearlite (P) and graphite (g). From the XRD spectrum of
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Overall scheme of compound squeeze casting die
From the analysis of key technical problems, it can be seen that the composite squeeze casting die for large parts
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Overall design of compound squeeze casting forming system
At present, there are two main squeeze casting methods: direct squeeze casting and indirect squeeze casting. Researchers in various countries
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Quality inspection and microstructure requirements for connecting rod forgings
The main failure mode of connecting rod is fatigue fracture. In order to keep the crankshaft in balance at high