Matrix texture and graphite state in gray cast iron
Gray cast iron is mainly composed of matrix structure and graphite, and others include eutectic, carbide and cementite eutectic. Its […]
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gray cast iron
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Solidification process of gray cast iron
Cast iron generally refers to multi-component iron carbon alloy with C content of 2.0% (wt%, the same below) W. Generally,
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Overview of gray cast iron
Gray cast iron is the most widely used cast iron at present. It is named for its gray section color.
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Filling characteristics of dry sand lost foam casting for gray cast iron
The series of experiments were carried out on the filling process of lost foam casting of gray cast iron by
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Mold filling characteristics of gray cast iron in lost foam casting with dry sand
Many observations and experiments have shown that the liquid metal is filled radially forward in the filling process of lost
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Gray cast iron dry sand lost foam casting
The filling process of lost foam casting has a decisive influence on the quality of castings. Due to the existence
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Influence of pouring temperature on mold filling speed in lost foam casting of gray cast iron
The changing trend of the influence of pouring temperature on the average mold filling speed of molten metal in lost
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Effect of pouring temperature on mold filling speed of gray cast iron lost foam casting
The test results are shown in the table: Pouring temperature (℃) Total mold filling time (s) Average filling speed (cm/s)
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Influence of technological factors on mold filling speed of gray cast iron lost foam casting
The theoretical research of lost foam casting started late. In the 1950s and 1960s, some research was carried out on
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Optimization and improvement of negative pressure degree in lost foam casting of gray cast iron thin wall gearbox shell
The selection of negative pressure degree is particularly critical in vacuum negative pressure lost foam casting. A large number of
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Effect of Ti on Microstructure and properties of gray cast iron brake disc
Grey cast iron is widely used in the production of automobile brake discs because it combines the main properties required
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Pouring system of gray cast iron thin wall gearbox shell before lost foam casting improvement
Based on the existing working conditions of the factory (sand box size, sprue specification, ladle specification, automatic pouring line, etc.),
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Improvement method of shrinkage casting defects of special alloy gray cast iron
1. Improve the temperature field of castings Through the simulation of the overall temperature field of the casting with the
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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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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