Test of mechanical properties of ductile iron casting
(1) Sample preparation. Using sheet tensile samples, first cut a sheet with a thickness of 2 mm from the middle […]
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Filling pattern of molten metal in lost foam casting with different pouring methods
Fig. 1 to Fig. 3 are isochronous graphs of liquid metal filling pattern of lost foam casting under different pouring
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Microstructure observation of nodular cast iron
(1) Sample preparation. Cut the samples of three components into 10 mm by wire cutting machine × 10 mm ×
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Effect of ring model on filling velocity of liquid metal in Lost Foam Casting
The outer circle diameter is 150mm, the inner circle diameter is 100mm, and the ring thickness is 20mm. The model
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Mechanical bending strength of HT150 gray iron castings directly produced by water slag iron smelting
Bending strength refers to the ability of materials to bend and crack continuously. HT150 has certain mechanical strength and good
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Effect of square model on filling speed of liquid metal in lost foam casting
The external geometric dimension is 200mmx100mm, the internal geometric dimension is 150mmx50mm, and the thickness of the model is 20mm.
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Mechanical tensile strength of HT150 gray iron castings directly produced by water slag iron smelting
HT150 belongs to medium strength gray iron castings. Gray iron has good casting performance, simple process and small casting stress,
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Influence of pouring mode on average mold filling speed of liquid metal in lost foam casting
The test results are shown in the table: Pouring position Total mold filling time (s) Average filling speed (cm/s) Side
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Pretreatment of lost foam casting simulation based on ProCAST
Lost foam casting is a special gravity casting. Because of the existence of foam solid shape in the cavity, it
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Influence of coating permeability on mold filling speed in Lost Foam Casting
Paint Total mold filling time (s) Average filling speed (cm/s) Low permeability coating 1.18 17.00 Medium permeability coating 1.14 17.54
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Effect of liquid metal hydrostatic head on mold filling speed in Lost Foam Casting
The test results are shown in the table. Sprue height (mm) Total mold filling time (s) Average filling speed (cm/s)
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Heat transfer in lost foam casting solidification process
The solidification process of castings includes phase change, heat and mass transfer, and the heat transfer phenomenon is in the
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Stress and deformation analysis of frame sand casting process
Figure 1 shows the displacement and overall deformation distribution of sand casting frame after cooling, dropping and unpacking. As can
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Effect of pattern density on mold filling speed of liquid metal in Lost Foam Casting
The test results are shown in the table. Pattern density (g/I) Total mold filling time (s) Average filling speed (cm/s)
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Analysis of residual stress in cooling process of frame sand casting process
After the sand casting frame is poured, it is cooled in the mold cavity until the central riser reaches a
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Effect of negative pressure on filling speed of liquid metal in lost foam casting
In the filling process of liquid metal in gray iron lost foam casting, there is an air gap between the
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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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Analysis of hot cracking trend in solidification process of frame sand casting process
In the post-processing results of stress field in ProCAST software, there is an option to judge the hot crack trend
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Distribution of thermal stress field during solidification of frame sand casting process
Due to the thick section structure and long solidification time of sand casting frame steel castings, the stress field in
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Properties of bimetal composite pipe by centrifugal casting
High wear resistance, high hardness and good toughness are important indexes of bimetal composite pipe, which are directly related to
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Analysis of temperature variation curve of frame sand casting process
In order to specifically and clearly study the temperature change of different parts of the rack with time, it is
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Cloud diagram of temperature distribution at typical time of frame sand casting process
The simulation analysis of the temperature field of the frame in sand casting includes the solidification of the frame in
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Setting of thermophysical parameters of frame sand casting
The setting of thermophysical parameters in the simulation process includes the determination of sand casting – zg230-450 and mold –
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Establishment of finite element model of frame sand casting process
1) Establishment of 3D solid model There is no solid modeling function in ProCAST software, and the three-dimensional solid model
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Bonding interface of bimetal composite pipe by centrifugal casting
The quality of bimetallic composite pipe has always been the focus of research, and its bonding interface directly affects its
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Analysis of sand mold casting process for frame
1) Production process of frame sand casting The sand casting of the frame adopts the pit shape and box cover,
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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