Purification effect of rare earth on molten steel of cast steel
(1) Deep deoxidation and desulfurization: rare earth is easy to react with oxygen and sulfur elements in the molten steel […]
(1) Deep deoxidation and desulfurization: rare earth is easy to react with oxygen and sulfur elements in the molten steel […]
After cementite decomposition, carbon atoms diffuse from cementite austenite interface to graphite austenite interface. During annealing, carbon atoms in austenite
The purpose of combining mechanical vibration with lost foam casting technology is to solve the problems of coarse structure and
1.3D modeling system framework based on OpenCascade WxWidgets is used as the development tool of the system interface and the
The existence of white zone is one of the characteristics of austempered ductile iron. Quenched martensite and retained austenite are
Generally, for a qualified casting coating product, in order to ensure the normal realization of the function of the casting
In the 1870s, many researchers from Michigan University led by R.D. pehlke and Marrone simulated the solidification process of “t”
Rare earth (RE) is the general name of 17 metal elements including lanthanide, scandium and yttrium in the periodic table
Figure 1 shows the equivalent stress nephogram of vermicular cast iron pressure plate. It can be seen that the equivalent
1.Test result The large number of tests have been carried out according to the above process plan, and the overall
Three kinds of gray cast iron samples annealed after heating to 700 ℃, 800 ℃ and 900 ℃ were tested
The effects of vibration frequency and molten iron treatment temperature on graphite morphology and primary phase of vermicular graphite cast
It can be seen from the table that the tensile strength and impact toughness of nodular cast iron show high
With the rapid development of computer technology, more and more researchers at home and abroad began to pay attention to
The cloud diagram of solid phase distribution of vermicular cast iron is shown in Figure 1. From the solid phase
In order to minimize the content of harmful elements, the selected raw materials should be relatively pure, so high-quality pig
1. Selection of raw materials Due to the inherent performance characteristics of wind power ductile iron castings, the requirements for
According to the different power generation, the quality of low temperature impact resistant wind turbine castings (especially wheel hubs and
Rolls, seamless tubes and ring parts are the key basic components of high-end equipment such as nuclear power and thermal
Friction coefficient and wear amount are important parameters to characterize the wear resistance of materials. The higher the surface hardness
The effects of vibration frequency and amplitude on graphite morphology, primary austenite and properties of vibration lost foam casting gray
At different austenitizing temperatures and isothermal temperatures, the bending fatigue test results of ductile iron specimens at room temperature are
The development of lost foam casting technology in China has the following characteristics: 1) Township enterprises and small and medium-sized
The pouring conditions of vermicular cast iron pressure plate are as follows: pouring temperature 1419 ℃, pouring speed 0.55m/s, pouring
In ProCAST, tetrahedral mesh model is commonly used for mesh generation. The quality of mesh usually affects the accuracy of
According to the relationship between the elongation and Si content of nodular cast iron, as well as the internal control
1. Microstructure The microstructure photos of titanium containing aluminum alloy ADC12-0.25Ti samples cast at different temperatures are shown in Figure
After laser melting, the microhardness of gray cast iron surface in different areas is divided into three obvious sections, among
Key problems and solutions to be solved by the large-scale casting composite squeeze casting forming equipment. According to the analysis
The effects of vibration frequency and amplitude on the microstructure and properties of ductile iron in lost foam casting were