Brilliant achievements have been made in semisolid technology in theory and its industrial application is deepening gradually. On the basis of learning and summarizing the previous research, related research was carried out in combination with the semi-solid forming experiment I participated in in the laboratory. This study based on...
At present, the application scope of gasoline engine in our country is expanding, and because of the large reactive power loss in the operation process of gasoline engine, the consumption of energy is huge. More and more attention has been paid to the improvement of gasoline engine performance in...
Large castings are not rare in iron mold sand coating process casting, but for large engine crankshaft castings with large cross-section and large transverse size, the sand coated iron mold casting process is still lack of experience. In particular, as an important part of the engine, crankshaft bears the...
The linear shrinkage of the bridge shell has a great influence on the accuracy of the size of the bridge shell. The shrinkage of metal in liquid state is shown as the drop of liquid level, which can only be expressed by the reduction of volume. The volume shrinkage...
Taking the tractor split axle housing as the research object, the paper firstly analyzes the process of the overall structure of the split axle housing, clarifies the quality control requirements for raw materials and auxiliary materials, determines the pouring position, pouring temperature and parting surface of the axle housing,...
As the key part of tractor, the main research contents are as follows: firstly, analyze the process of axle housing structure, set reasonable process parameters, then determine the gating system, analyze the influence of different gating systems on the filling and solidification process of the axle housing, and then...
Since the 21st century, solidification numerical simulation technology has been developing continuously, and it is in the stage of optimization design. The numerical analysis of flow field and temperature field in the process of filling and solidification of axle housing has been developed more mature, and the casting simulation...
In foreign countries, the analysis unit of “heat and mass flow analyzer” of Columbia University was first used in casting simulation technology. Prosenjit Das et al. Used regression analysis method and Taguchi method to optimize the process of ordinary sand mold casting of aluminum alloy materials, and obtained the...
A certain type of broken axle housing of a company is mainly used for tractor load-bearing bridge, with an annual output of 10000 sets. The service conditions of the axle housing include plateau, saline alkali, desert and other terrain and latitude. Under full load condition, it must bear high...
The shell casting process of lost foam casting has cleaned the foam thoroughly and thoroughly through the roasting process before pouring liquid metal. Therefore, it thoroughly eliminated the unfriendly influence and trouble caused by the foam mold in the liquid metal forming process. Very careful, always on tenterhooks, the...