Study on interface heat transfer of squeeze casting during casting process
Under the background of the research on the heat transfer behavior and pressure transfer law of squeeze casting die interface, […]
Under the background of the research on the heat transfer behavior and pressure transfer law of squeeze casting die interface, […]
The initial temperature of the die represents the initial state of the die before the start of squeeze casting, and
Direct squeeze casting was used in squeeze casting experiment. In the process of direct squeeze casting, the high temperature melt
Taking the horizontal centrifugal casting machine for furnace tube supported by roller as the research object, the dynamic performance of
Brilliant achievements have been made in semisolid technology in theory and its industrial application is deepening gradually. On the basis
In the study, working conditions 1, 2, 3 and 4 represent four working conditions with applied pressure of 70, 46,
In the past 30 years, scholars at home and abroad have used the finite element method to analyze the rotor
In recent years, rheological forming technology also has a lot of research and application. University of Brunel, UK Fan et
Because the characteristic of squeeze casting is that the high temperature melt solidifies under the external pressure, many experiments will
Compared with the transfer matrix method, the main characteristic of the finite element method is that the expression is concise
Taking the temperature measured by 1 mm and 6 mm thermocouples as the input condition, the interface heat transfer coefficient
Semi solid forming technology is also called semi-solid processing technology. Its essence is a new material forming method to process
In the 1980s, Huang Taiping, Gu jialiu and others successively proposed some improved transfer matrix methods for relatively complex rotor
The typical temperature measurement curves inside the mold at positions 2 and 3 are shown in Fig. 1 and 2.
The basic idea of transfer matrix method is to divide the whole structure into several mechanical problems of docking and
In the study, working conditions 1, 2, 3 and 4 represent four working conditions with applied pressure of 70, 46,
In addition, some researchers also consider the filling flow process and cooling solidification process of liquid metal in the numerical
Through the inverse algorithm, the mathematical model for calculating the interface heat flux and die surface temperature is established, and
Multi layer composite pipe can be produced by centrifugal casting. When multi-layer composite pipe or other parts are produced by
The interface heat flux and die surface temperature of each time step can be calculated by inverse algorithm. In order
During centrifugal casting, due to the density difference between different alloy components, segregation is easy to occur under the action
In squeeze casting process, the solidification process involves phase transformation, and the thermophysical properties of related parameters are temperature dependent,
In the process of filling, the temperature of molten metal decreases continuously, and after filling, the cooling process continues until
The interfacial heat transfer coefficient is an important parameter to characterize the heat transfer between casting and die Where h
Mukunda et al. Studied the influence of mold speed and casting temperature on the filling effect. When the diameter of
In order to find a way to determine the truncation frequency, a function is constructed. As shown in the formula,
McBride’s research focus is to establish the prediction method of entrainment and exhaust in centrifugal casting process. They used the
The heat transfer coefficient of squeeze casting die interface is calculated by inverse algorithm. In order to obtain accurate calculation
In the process of industrial production, physical quantities such as temperature, pressure and vibration are usually converted into electrical signals
Mold filling is an important stage in the casting process. Unstable filling process of liquid metal, unreasonable filling sequence and