Introduction of lost foam casting of gray cast iron thin wall gearbox shell
1. Production conditions of Lost Foam Casting Thin-wall gray cast iron gearbox shell The production conditions and parameters of Lost […]
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gray cast iron
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Analysis of shrinkage casting defects of special alloy gray cast iron
1. Tendency shrinkage defects of gray iron castings after processing In the process of design and development of gray iron
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Prevention measures for casting defects of high grade gray cast iron cylinder head of large diesel engine
In casting production, due to the uneven wall thickness of the gray cast iron cylinder head, it is easy to
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Casting technology of high grade gray cast iron cylinder head of large diesel engine
1. Casting process Adopt the core assembly and vertical pouring process, pre assemble the base core, water jacket core, airway
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Effect of Ti on the microstructure and properties of gray cast iron brake discs
Figure 1 shows the relationship between the tensile strength, Brinell hardness and w (TI) content of the test sample, in
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High grade gray cast iron cylinder head of large diesel engine
The tensile strength of gray cast iron cylinder head body is required to reach 300 MPa, and the tensile strength
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Shrinkage casting defects of special alloy gray cast iron frame
The structure of special alloy gray cast iron frame gray cast iron used in the power system of high-speed railway
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Shrinkage defects of high-grade gray cast iron cylinder head of large diesel engine
With the continuous improvement of the quality requirements of diesel engine products in the whole machine factory, higher and higher
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Analysis of thermal conductivity of gray cast iron
The main reason why grey cast iron is widely used in cylinder block is that it has better thermal conductivity
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Analysis of mechanical properties and fracture morphology of gray cast iron
Figure 1 shows the mechanical properties of gray cast iron materials with different carbon equivalents. It can be seen that
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Microstructure analysis of gray cast iron
Graphite in gray cast iron is a weak phase, and its strength is close to zero. If there is a
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Preparation and test methods of gray cast iron specimen materials
Gray cast iron with different carbon equivalent Ce (3.2%, 3.4%, 3.6%, 3.8%, calculated by ce=si/3+ct, Si is taken as the
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Friction and wear properties of gray cast iron surface after graphitization annealing
Friction and wear tests were carried out on three gray cast iron samples annealed at 700 ℃, 800 ℃ and
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Effect of low carbon equivalent on Microstructure and properties of gray cast iron
Gray cast iron has become the preferred material for automotive parts such as engine and cylinder block because of its
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Graphite transformation in laser modified layer of gray cast iron
After cementite decomposition, carbon atoms diffuse from cementite austenite interface to graphite austenite interface. During annealing, carbon atoms in austenite
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Changes of matrix structure of laser modified surface graphitization annealing of gray cast iron
Three kinds of gray cast iron samples annealed after heating to 700 ℃, 800 ℃ and 900 ℃ were tested
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Friction and wear test of laser melting layer of gray cast iron
Friction coefficient and wear amount are important parameters to characterize the wear resistance of materials. The higher the surface hardness
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Effect of amplitude on graphite morphology and primary austenite of vibration lost foam casting gray cast iron
The effects of vibration frequency and amplitude on graphite morphology, primary austenite and properties of vibration lost foam casting gray
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Microhardness test of laser melting layer of gray cast iron
After laser melting, the microhardness of gray cast iron surface in different areas is divided into three obvious sections, among
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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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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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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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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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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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Casting technology of gray cast iron engine cylinder block
The growth mechanism of tin crystal was discussed by means of lower microstructure observation and thermodynamic calculation. The effects of
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Microstructure and properties of gray cast iron engine block
Aiming at the process of producing gray cast iron engine block by sand casting, the casting process of gray cast
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Surface morphology and properties of gray cast iron
Through the combination of experimental simulation and experiment, the improvement effect of laser melting, laser shock and graphitization annealing process
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Slag hole defect of gray cast iron
There are many factors that cause slag hole defects, such as raw material composition of gray cast iron, slag removal
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Thermal reconstruction and properties of surface microstructure of gray cast iron
The combination of laser melting, laser shock and graphitization annealing process of gray cast iron was applied to the study
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Slag hole casting defects of gray cast iron slag hole
Slag hole (including sand hole) is also one of the common defects of gray cast iron cylinder block produced by