The process of PS rapid investment casting based on selective laser sintering was studied. Starting from the process of rapid investment casting and the route of dimensional error transmission, the optimal parameters of wax impregnation process were obtained through the study of wax impregnation post-treatment process, and the dimensional...
Through the actual observation of the casting, it is found that the appearance of the diffuser casting is complete, and the corresponding characteristic parts of the casting are measured. At the same time, the castings without dimensional error compensation and after dimensional error compensation are compared. Considering the actual...
From the actual casting results of trial casting, it can be found that the upper part of the diffuser blade has some defects, and the side blade also has different degrees of defects at the bottom. Considering that in the actual casting process, the upper blade is the first...
The diffuser shell adopts high strength ceramic shell process, which is composed of surface layer, transition layer and back layer. The surface layer is coated with silica sol with a mass fraction of more than 30% and zircon powder with an average particle size of 325 mesh, and the...
ProCAST simulation software was used to simulate the gating system, and the temperature field changes and casting defects during filling and solidification were analyzed. The simulation results of diffuser investment casting are shown in Figure 1. Figure 1 shows the distribution of flow field and temperature field in the...
UG software is used to save the designed initial gating system file in x-t format and import it into the pre-processing module of Pro cast2016 view mesh. In order to ensure that the calculation results can be as accurate as possible and the simulation calculation time can be reduced...
Mainly through the trial production of rapid investment casting process, including: gating system design; casting simulation pretreatment settings; numerical simulation results analysis; alloy casting trial production. Through the analysis of the trial production results, the qualified castings are obtained by the final improvement. Combined with the existing size error...
1.Technical requirements For the technical requirements of metallographic structure, most customers’ products are basically consistent with those recommended in technical conditions for camshaft of automobile engine. Fig. 1 is a schematic diagram of metallographic cutting of all cold shock cam. From the surface layer to the center of the...
The size correction of the typical complex diffuser was completed by using magic software. Through the analysis of the size deviation of the diffuser impeller, the existing size error compensation coefficient is applied to compensate the size of the part, and the size compensation is carried out again until...
Select a mine φ 12.2 m × The middle ring liner of 11.0 m autogenous mill is taken as the research object, and the field liner installation is shown in Fig. 1 and 2. In Figure 1, the dark area is the liner of high chromium cast iron, and...