Research status of improving fatigue wear resistance of gray cast iron
Through the study of fatigue wear failure forms and influencing factors, it is understood that fatigue defects mainly appear on […]
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 ×
1. Test materials and casting process parameters Combined with the scientific casting process and methods, the properties of casting samples
The carbon emissions of the two schemes before and after optimization are calculated respectively. By comparing the carbon emission of
As we all know, bearing pedestal is an important part of modern machinery and plays an important role in the
The carbon emission of materials based on the coupling process parameters of sand casting is calculated according to the formula.
The bearing pedestal can fix the bearing, support the operation of the bearing, and bear the pressure brought by the