Simulation of solidification time distribution of ductile iron nuclear spent fuel container
The simulated solidification time distribution of ductile iron spent fuel container is shown in the figure. As can be seen […]
The simulated solidification time distribution of ductile iron spent fuel container is shown in the figure. As can be seen […]
The temperature curves of chill and metal mold are shown in Fig. 1 and Fig. 2 respectively. In about 18
Using high-purity pig iron as the main raw material, the high-temperature pure and high-quality molten iron meeting the composition requirements
1.Analysis of temperature field in filling process The actual production requires that the minimum temperature distribution is at the overflow
Figure 1 is the flow field simulation diagram of automobile steering wheel formed by opposite side casting. It can be
Establishment of casting model A356 aluminum alloy is selected as the die casting material. The casting aluminum alloy A356 is
The metal in the filling process can be considered as incompressible fluid, which follows the hydrodynamics law and can be
As shown in Figure 1, due to the symmetrical arrangement of rollers, the weight of the mold is shared equally
For the shrinkage porosity defect, it is opened at the defect position, as shown in the figure. It is found
When the pressure difference is enough (35kpa), the influence of chill thickness and casting thickness on defect formation is discussed.
The thickness of chill is designed according to the chill of gray iron casting, as shown in the formula Where
The research adopts the flat plate structure, the gap gating system and the low pressure pouring. The design of plate
The results show that tempering temperature has obvious effect on the quantity and morphology of carbides in 30cr13nb0.1 steel, which
The effect of tempering temperature on the impact properties of 30cr13nb0.1 steel is shown in Fig. 1. It can be
It can be seen from the figure that with the increase of tempering temperature, the hardness of 30cr13nb0.1 steel first
The room temperature tensile strength and elongation of A1 and A2 alloys under different processes are shown in Fig. 1.
Fig. 1 shows the microstructure of 30cr13nb0.1 steel tempered at different temperatures. It is preliminarily judged that it is martensite
Fig. 1 and Fig. 2 are SEM photos of microstructure of as cast samples of A1 and A2 alloys by
Fig. 1 and Fig. 2 show the SEM photos of as cast samples of A1 and A2 alloys without ultrasonic
The ztap / HCCI composite grinding roller was successfully prepared by splicing several preforms and fixing them at the corresponding
Take photos of the worn sample surface, import the pictures into image Pro Plus software, and identify and select the
Figure 1 shows the XRD pattern of ztap / HCCI composite. The phases of the composites mainly include Al2O3 in
Figure (a) shows the overall metallographic structure (after heat treatment) of ztap / HCCI composite under optical microscope. The microstructure
The macro morphology of the preform is shown in figure (a). After sintering, ztap is fully wrapped by HCCI to
1.Selection and properties of preform materials The mass fraction of ZrO2 in ztap is 40wt%, the particle size is 1
The slag holes are mainly distributed around 2 and 5 turns, accounting for 22.7%; the defect area is large and
The generation of cold shut is directly affected by the temperature of molten iron. At a certain temperature, the design
The air-conditioner of the defective product is mainly located at the highest point of the mold, i.e. 2 and 5
Air conditioner The cold air gap is the gap that penetrates or does not penetrate the casting, and the edge
The microhardness of lzqt600-3 ductile iron profile was tested under the optimal scheme of nitrocarburizing state in three parts. The