Effect of different pouring speed on the quality of sand castings
For the same sand casting, different pouring speed corresponds to different pouring time. In the process of molten metal entering […]
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Determination of pouring position of main sand casting of axle housing
The pouring position of sand casting usually refers to the position of the axle housing in the mold during pouring.
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The axle housing is mainly composed of sand casting raw materials
Steel contains no other alloy elements except carbon and a certain amount of silicon and manganese alloy elements for deoxidation.
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Prediction of shrinkage casting defects with multiple hot spots
The judgment of multiple hot spots is to judge the number, size and position of hot spots that may be
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Design of riser of hydraulic turbine blade by sand casting
The riser can store a certain amount of liquid metal and can feed sand castings. The purpose of feeding is
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Three dimensional solid modeling of sand cast turbine blade
Because the sand cast turbine blade has the characteristics of extremely complex spatial surface, the three-dimensional spatial coordinate system is
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Numerical simulation of sand casting process of large hydraulic turbine blades
Turbine blade is one of the three major parts of turbine runner (upper crown, lower ring and blade) which is
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Numerical simulation of sand casting process of large hydraulic turbine blades
Turbine blade is one of the three major parts of turbine runner (upper crown, lower ring and blade) which is
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Prediction of shrinkage cavity and porosity casting defects during solidification of steel castings
In the production of steel castings, the most common casting defects are shrinkage cavity and porosity. The main purpose of
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Numerical simulation technology of metal casting
The basic theory and model solving process of flow field, temperature field and stress field simulation in metal casting process
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Formation process of thermal stress in sand castings
In the solidification process of metal castings, due to the different cooling rate of each part of sand castings, the
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Criterion for judging shrinkage casting defects
The shrinkage porosity produced in the solidification process of castings is mainly predicted by using the shrinkage porosity criterion. There
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Effect of ultrasonic time on Microstructure and properties of nodular cast iron
In order to explore the effect of ultrasonic treatment time on the microstructure and properties of ductile iron, a group
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Main quality problems of tractor axle housing by sand casting
At present, most companies adopt the process of sodium silicate sand casting and V-method casting for production. According to the
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Calculation of shrinkage and prediction of shrinkage casting defects
To calculate the shrinkage of an isolated hot spot, first determine the isolated region, and then use the formula to
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Effects of different pouring temperatures on the quality of sand castings
Pouring temperature refers to the temperature when the molten metal enters the gate. If the pouring temperature is too high,
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Heat transfer conditions of metal mold interface in sand casting
In the solidification process of sand casting, due to the solidification shrinkage of sand casting itself and the expansion of
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Design and working process of sand core mold for sand casting of complex turbine cover
1. Sand core mold design As shown in Figure 1, the center of the spiral case of sand core I
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Mathematical model of heat transfer in solidification process of sand castings
In the process of sand casting, liquid metal is poured into the mold and then dissipated heat to the surrounding
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Numerical simulation of mold filling process in sand casting
A series of physical and chemical changes will occur in the filling process of sand castings, such as heat transfer,
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Casting technology of nodular cast iron crankshaft
Aiming at the research and application of preparation technology of high-performance nodular cast iron crankshaft, an exploratory study was made
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Ultrasonic treatment of nodular cast iron solution
(1) In laboratory experiments, applying ultrasound during solidification can refine the microstructure of nodular cast iron, increase the roundness of
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Research status of sand casting simulation in China
Sand casting belongs to metal liquid forming technology. In actual production, sand casting engineers often formulate processes according to previous
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Prediction and analysis of casting defects
Niyama criterion is selected as the prediction method of shrinkage porosity of spiral bevel gear casting. As shown in figures
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Mold filling and solidification process of sand castings
The figure shows the numerical simulation diagram of filling and solidification process of gear blank casting with common gating scheme
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Design and working process of sand casting die for complex turbine cover casting
Different sand casting methods have different requirements for the mold. The sand casting mold of turbine cover casting is mainly
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Prediction and analysis of casting defects of sand casting gear
The figure is the schematic diagram of shrinkage defects and air pressure distribution at different positions after complete solidification of
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Analysis of mold filling and solidification process of sand castings
The figure shows the numerical simulation diagram of mold filling and solidification process of sand casting with central top injection
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Casting technology of gear blank in sand casting
In CATIA three-dimensional modeling software, save the component digital models of sand casting and gating system as STL format and
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Casting technology of sand casting for steel castings
The common Pouring Scheme of pouring riser refers to the selection of three cylindrical thermal insulation open risers, which are