Shrinkage cavity is a common casting defect, which is essentially a volume defect. According to the causes, it can be […]
Simulation and analysis of temperature field in closed gating system of axle housing The simulation of temperature field is shown
During pouring, under the action of gravity, the molten metal first enters the cavity through the sprue, enters the runner
Figures (a) and (b) show the flow of the liquid metal in the bridge shell when the metal liquid fills
Figure (a) is the real-time screenshot of the molten metal just filling the runner at the beginning of pouring, and
In order to predict and confirm the location, size and range of shrinkage defects in the pouring and feeding system
Setting of sand mold material parameters When sodium silicate molding sand is used in production, it can be replaced by
During the solidification of hot metal, the liquid and solid state of most metals exist together most of the time.
Generally, the thermal conductivity of metal is related to the temperature and chemical composition of molten steel, which is generally
The numerical model of axle housing is established by Creo software and saved in. STP format. The STP file is
Using ProCAST through The computer numerical simulation software is used to simulate the gating system of the axle housing. The
Semi closed gating system is adopted, and the proportion is as follows: Σ a inside: ∑ a transverse: ∑ a
The open gating system is adopted, and the proportion is as follows: Within Σ A: ∑A transverse: ∑A straight =
The closed gating system is adopted, and the proportion is as follows: ΣA inside: ∑A transverse: ∑A straight = 1:1.3:1.5
According to the location of the inner gate of the axle housing, the gating system can be divided into top
When there is not enough structural slope of the axle housing itself, enough draft angle of the axle housing should
As the original casting process adopts bottom pouring process, as shown in Figure 1 Through comparative analysis, it is found
The sand core is designed to form the inner cavity, forming hole or the part with complex shape which is
Effect of as cast microstructure on hardness of Austempered Ductile Iron The hardness test results of Austempered Ductile Iron with
The drawing shows SEM photos of tensile fracture morphology of Austempered Ductile Iron with different austempering process parameters. It can
The figure shows the secondary electron image of tensile fracture of Austempered Ductile Iron with different wall thickness treated at
The drawing shows SEM pictures of tensile fracture surface of Austempered Ductile Iron with different as cast microstructure after treatment
The percentage of pearlite in as cast ductile iron with MS = 0.25 cm, Ms = 0.50 cm, Ms =
The combination of high strength, good toughness, high specific strength, good wear resistance and high fatigue strength of austempered ductile
Fig. 1, Fig. 2 and Fig. 3 show the linear scanning position and energy spectrum test results of carbon element
Fig. 1 and Fig. 2 show the transmission electron micrograph and selected area electron diffraction pattern calibration of the austenite
After austenitizing treatment and isothermal transformation, the microstructure of ductile iron has changed obviously. Figure 1 shows the microstructure of
The austenitizing and isothermal transformation treatment was carried out on several samples taken from Φ 50 mm ductile iron test
When the chemical composition of molten iron is constant, the smaller the casting modulus, the higher the amount of P
Under the same austenitizing process parameters, the change of carbon content in austenite with modulus is shown in the figure.
