Quality control technology for melting nodular cast iron melt in medium frequency furnace
1. Chemical composition design When the diameter of roll body is more than 600 mm, the carbon equivalent is 3.8% […]
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Prediction criterion of shrinkage porosity in sand castings
According to the formation mechanism of shrinkage cavity and porosity in sand casting and based on the numerical simulation of
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Factors affecting the quality of nodular cast iron roll produced by medium frequency furnace
1. Main quality problems of rolls Produced φ 800 mm × 1880 mm high chromium cast iron roll (as shown
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Three dimensional heat transfer mathematical model of solidification process in sand casting
The three-dimensional heat transfer mathematical model of numerical simulation of solidification process of sand casting is unsteady heat conduction partial
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Verification of simulation results of horizontal centrifugal casting of cylinder liner
As shown in the figure, it is produced with the help of computer simulation φ 400mm and φ Rough finished
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Basic mode of heat transfer in solidification process of sand casting
According to the theory of heat transfer, the process of sand casting high-temperature metal from pouring into the mold to
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Analysis of pressure field in horizontal centrifugal casting of cylinder liner
The figure below shows the simulation results of the pressure field distribution of molten metal at the completion of pouring.
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Metallographic analysis of 5083 aluminum alloy casting plate
1. Size of compound phase Figure 1 shows the microstructure of the defective sample and the normal sample. Through comparison,
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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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Centrifugal casting process of bimetal composite pipe
As a key structural member in mining, metallurgy, coal, electric power and other industries, the composite seamless pipe is just
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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 temperature field in horizontal centrifugal casting of cylinder liner
Figure 1 shows the simulation results of temperature field in the process of filling, solidification and cooling of liquid metal
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Nodular ductile iron spent fuel storage and transportation container
In the 1980s, Siempelkamp company of Germany successfully developed castor series nodular cast iron transport containers. Compared with other metal
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Grid division of centrifugal casting for super large high molybdenum cast iron cylinder liner
Man28-33d wet cylinder liner is selected as the research object. The blank length of cylinder liner is 686mm and the
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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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Quality improvement of nodular cast iron roll produced by medium frequency furnace
1. Metallographic comparison The metallographic structure comparison before and after the improvement of the process of producing nodular cast iron
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Determination of casting process scheme of nodular cast iron intercooler base pipe
1. Molding process The two box core molding is adopted, and the sand filling core under the side molding is
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Simulation and analysis of flow field in horizontal centrifugal casting model of cylinder liner
Figure 1 shows the simulation of velocity field of molten metal. It can be seen from figure 1A that the
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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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Alloying principle and strengthening mechanism of CB2 cast steel
CB2 cast steel is a 9%~12%cr martensitic heat-resistant steel with a composition of 0.13c-9cr-1.5mo-1co-vnbnb, which is obtained by reducing C,
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Ductile iron punch disc casting
C Si Mn P S Cu Sb Mgincomplete 3.43 2.09 0.42 0.020 0.010 0.65 0.005 0.045 According to the above
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Design of sand core for rotary disc sand mold casting
The characteristic of rotary disc sand mold casting is rectangular. The internal and external shapes of rotary disc sand mold
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Lost foam casting process of vacuum pump shell castings
1. White mold making Due to the large size of the vacuum pump shell casting, the white mold of the
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Deformation analysis of compacted vermicular cast iron
The flatness of compacted vermicular cast iron platen surface is also very high. Therefore, the deformation of compacted vermicular cast
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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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Numerical simulation and optimization of rotary disc sand mold casting
1. Numerical simulation of bottom pouring inclined gating system in sand mold casting AnyCasting is used for numerical and simulation
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Melting process of nodular cast iron punch disc casting
1. Spheroidizing treatment Graphite distortion and fragment graphite will be produced in nodular cast iron with thick and large section
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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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Properties of bimetallic composite roll by centrifugal casting
The working surface of the composite roll is the outer surface, that is, the outer layer should meet the requirements