With the continuous development of marine low-speed diesel engine in the technical direction of high intensity, ultra-long stroke, ultra-high burst […]
Nominal dimension of die cavity of investment casting impeller blade L: Where LP – average dimension of investment casting impeller
Gray cast iron material has the advantages of low price, excellent casting performance, easy cutting and good wear resistance. It
At present, environmental problems have become increasingly prominent, and countries all over the world pay more attention to the pollution
From the beginning of manufacturing the investment mold to the formation of the casting, the size of the impeller blade
Through the study of fatigue wear failure forms and influencing factors, it is understood that fatigue defects mainly appear on
The test prototype is LX2204 high-power tractor, and the working tool carried is the French Kuhn EL282 rotary cultivator. See
(1) Investment casting impeller blade pressing structure After analyzing the structure, shape, technical requirements, production conditions and economy of investment
In order to effectively improve the fatigue wear resistance of gray cast iron, it is necessary to understand the fatigue
Based on the previous experience of investment casting and sand casting in the production of various impellers, the two commonly
Due to the excellent performance of gray cast iron, it has become one of the essential components of precision machine
a. Analysis of sand mold casting process for impeller The overall size of the sand cast impeller is large, and
Cast iron is the most widely used casting metal material in modern industry. The applications of cast iron in various
C Si Mn P S Cr Mo 0.32-0.42 0.20-0.45 0.50-0.80 ≤0.025 ≤0.025 0.80-1.20 0.20-0.30 The planet carrier is made of
As the most important output component of the shearer gear transmission system, the planet carrier has a complex structure and
①When using polystyrene foam in white mold manufacture, its density is very small, and the labor intensity of the operators
1. Structure of cast impeller The stainless steel impeller shown in Figure 1 is a key component of a large
In view of the casting defects of the compressor diaphragm in the casting process, the mechanical properties of the casting
The fire-resistant coating for lost foam casting includes refractory aggregate, carrier (solvent), suspending agent, binder and other additives. ① Refractory
As shown in the figure, the shrinkage cavity distribution with volume fraction greater than 0.05 predicted by numerical simulation technology
1. Gridding The analysis is performed in the Ansys Workbench. The first step in finite element analysis of casting diaphragm
One layer of refractory coating hung on the outer surface of the foam plastic model is one of the three
The figure shows the numerical simulation solidification of the gearbox at different times. It can be seen from the figure
Cast diaphragms are the main stator components in centrifugal compressors. According to the different arrangement positions and functions of cast
The process flow of lost foam casting is divided into two parts: white area and black area. (1) the process
The picture shows the filling state diagram of the gearbox case at different times, of which yellow is metal liquid.
lost foam casting process technology, usually referred to as EPC in English, is also known as gasification mold casting or
In the process of lost foam casting, high temperature molten metal can quickly decompose foam pattern after contacting with foam.
1. Impact performance After the impact test is completed, the impact absorption rate of bearing pedestal will change with the
1. Casting characteristics As shown in Figure 1, the overall dimension of the box is 560mm × 480 mm ×
