Fixing of impeller shell in investment casting
If the coating tooling is removed immediately after the coating of partial mold shell of investment casting impeller blade, due […]
If the coating tooling is removed immediately after the coating of partial mold shell of investment casting impeller blade, due […]
The assembly and welding process of investment casting impeller includes wax mold trimming, wax mold cleaning, wax mold inspection and
(1) The welder assembly of impeller blade assembly is composed of 6 parts: upper cover plate, lower cover plate, locating
In the traditional sense of investment casting, the welding of investment module, that is, after removing flash, polishing and inspection,
The investment casting process of single impeller blade mainly includes several processes: mold material preparation, investment mold manufacturing, cooling, storage
The first step in the preparation of the melt mold shell is to manufacture the melt mold of the whole
Nominal dimension of die cavity of investment casting impeller blade L: Where LP – average dimension of investment casting impeller
From the beginning of manufacturing the investment mold to the formation of the casting, the size of the impeller blade
(1) Investment casting impeller blade pressing structure After analyzing the structure, shape, technical requirements, production conditions and economy of investment
Considering the influence of turbine blade investment casting process accuracy, the objective fact that the real shape of Aeroengine Blades
1. Manufacturing process All the technologies described above have different advantages. In this study, selective laser sintering technology is mainly
In the process of industrial manufacturing, investment casting can play an important role and can be used to make parts
In the process of sand casting, the performance of sand mold is one of the key factors affecting the final
After analyzing the defects, another improvement scheme is made, as shown in the figure. In the original scheme, the investment
Unreasonable pouring speed setting of investment casting will also produce insufficient pouring defects. In order to determine the reasonable pouring
Another investment casting thin-walled steel casting of ZHY casting was under poured in the trial production process, and the defects
In the casting defect scheme, the actual pouring temperature is 1560 ℃, and the actual average pouring speed is 0.38
The support size of a thin-walled steel casting is 400 mm × 310 mm × 270 mm, minimum wall thickness
Because the exhaust rib is not set in the original scheme, the simulation shows that the gas pressure in the
In recent years, with the application of advanced technologies such as high-performance (steel, non-ferrous alloy, etc.) materials, CAE analysis and
For many years, castings and forgings have been used as the product parts of ZHY Casting excavator. The new technology
Through the testing of the original investment casting prototype, it is found that there are shallow cracks at the intersection
The blank size of coupler parts is large, and the outline is 594mm × 370mm × 350mm, which is a
The coupler casting scheme adopting the gating system of scheme B is trial cast. The appearance of the trial cast
After solidification of investment casting in scheme a, there is shrinkage tendency, as shown in Fig. 1 (a), which is
In the solidification process of investment casting, the appearance, thin shoulder and thin-wall area of investment casting in scheme a
During the mold filling process of investment castings in gating system scheme a, the metal liquid flows from the sprue
Coupler is the connecting device of rail vehicles. It needs to ensure that the connected carriages at both ends do
The chemical composition of molten metal is detected in front of the furnace, and the results are shown in Table
Wax loss casting, now known as investment casting, is a casting process with little or no cutting. It is an