The numerical simulation results of the solidification process of the improved lost foam casting turbine rear exhaust pipe are analyzed. […]
1.Diesel engine connecting rod The connecting rod of the diesel engine bears high explosion pressure and low rotation speed. The
1.Materials and technical requirements of quenched and tempered steel connecting rod Jb3764-84 stipulates that the following materials shall be used
The graphite morphology in gray cast iron has obvious influence on the fracture process and mechanism of gray cast iron.
1.Forming process scheme The filling temperature of the large wheel hub composite squeeze casting method is 720 ℃, the moving
The figure shows the matrix structure of gray cast iron. Among them, figures (a) – (d) are the matrix structure
According to the analysis of the above numerical simulation results of lost foam casting, the possible defects and parts in
For the surface of gray cast iron treated by laser alloying, the microstructures of different mixed alloy powders are obviously
The figure shows the morphology of primary austenite of gray cast iron prepared under different amplitudes. Figures (a), (b), (c)
The microstructure is the main factor affecting the fracture morphology and fracture mechanism of metal materials. The notch effect at
The ultimate purpose of numerical simulation of lost foam casting is to analyze the casting solidification process and optimize the
Mold filling temperature is a very important index of squeeze casting, which is closely related to the occurrence of shrinkage
The development of cast iron technology at home and abroad requires that gray iron castings not only have good mechanical
The filling time of turbine exhaust pipe in lost foam casting is longer than that in sand casting. The whole
The following figure shows the stress field distribution of bimetal casting liner at different times during solidification. Due to the
At present, the theoretical analysis method of squeeze casting is not very perfect. There is no ideal design method of
The figure shows the effect of scrap content on the hardness and tensile strength of gray cast iron. It can
The figure shows the fracture morphology of gray cast iron with different vibration frequencies. Among them, figures (a) – (d)
Figure (a) shows the effect of natural aging on the hardness of high chromium cast iron. It can be seen
The figure shows the graphite morphology of gray cast iron prepared under different amplitudes. Figures (a) – (b) show the
The microstructure of grey cast iron samples with three different contents of scrap steel is shown in Fig. 1 and
The inheritance of tin in raw and auxiliary materials and the introduction of Ti element will increase the tin particles
The sample size of high chromium cast iron is 10 × ten × 5 mm3 cube. The martensitic structure of
(1) Effect on hardness of gray cast iron Fig. 1 shows the effect of vibration frequency on the hardness of
As shown in Fig. 1 (a) and Fig. 2 (a), the SEM images of high chromium cast iron quenched at
Many gray particles can be observed in the SEM picture of Fig. 1 (a). Therefore, the cross-sectional component surface scanning
In order to research the change of austenite dendrite structure of gray cast iron from the perspective of thermodynamics, two
Carry out the research on the influence of tin in gray cast iron on its performance. First, carry out the
According to the relation diagram, for gray cast iron during cooling and solidification, at a certain temperature, the content of
In order to better analyze and study the types of secondary carbides obtained after quenching of high chromium cast iron,
