Centrifugal casting process of bimetal composite roll
China’s iron and steel industry has developed rapidly, and its output has ranked first in the world for many years. […]
China’s iron and steel industry has developed rapidly, and its output has ranked first in the world for many years. […]
Rolls, seamless tubes and ring parts are the key basic components of high-end equipment such as nuclear power and thermal
In addition to composite rollers and composite pipes, ring parts such as bearing rings and flanges are used as key
In addition to Si, Mn and C elements, a certain amount of Cu is added to nodular cast iron. Cu
1. Test materials Figure 1 shows the wear of excavator bushing. It can be found that the bushing has been
Since the emergence of centrifugal casting technology, many scholars at home and abroad have studied the centrifugal casting process. At
(1) Taking the force of roller supported horizontal centrifugal casting machine as the research object, the calculation method of the
(1) In horizontal centrifugal casting with roller support, the shape error and surface morphology of the two relative moving contact
Taking the horizontal centrifugal casting machine for furnace tube supported by roller as the research object, the dynamic performance of
In the past 30 years, scholars at home and abroad have used the finite element method to analyze the rotor
Compared with the transfer matrix method, the main characteristic of the finite element method is that the expression is concise
In the 1980s, Huang Taiping, Gu jialiu and others successively proposed some improved transfer matrix methods for relatively complex rotor
The basic idea of transfer matrix method is to divide the whole structure into several mechanical problems of docking and
In addition, some researchers also consider the filling flow process and cooling solidification process of liquid metal in the numerical
Multi layer composite pipe can be produced by centrifugal casting. When multi-layer composite pipe or other parts are produced by
During centrifugal casting, due to the density difference between different alloy components, segregation is easy to occur under the action
In the process of filling, the temperature of molten metal decreases continuously, and after filling, the cooling process continues until
Mukunda et al. Studied the influence of mold speed and casting temperature on the filling effect. When the diameter of
McBride’s research focus is to establish the prediction method of entrainment and exhaust in centrifugal casting process. They used the
Mold filling is an important stage in the casting process. Unstable filling process of liquid metal, unreasonable filling sequence and
The vibration of centrifugal casting machine mold has always been an inevitable problem in production, and the vibration will have
The history of centrifugal casting can be traced back to the 19th century. The first patent of centrifugal casting in
Furnace tubes are the key parts of cracking furnace, reformer and heating furnace in Shishan chemical plant. At present, centrifugal
Some research work has been done on the dynamic analysis of roller supported horizontal centrifugal casting, the influence of roller
In order to adapt to the production of different castings, various forms of centrifugal casting machines have been designed and
The main innovations are as follows: (1) Through mechanical analysis, the calculation model of support stiffness and damping of roller
As shown in Fig. 1, the temperature of the cast pipe and mold changes along the radial direction. It is
After the molten steel is poured into the mold, there will be heat exchange with the mold. After a period
According to the different forms of centrifugal casting, it can be classified. According to the application of centrifugal force, the
Taking the roller supported horizontal centrifugal casting machine as the research object, the dynamic performance of the centrifugal casting machine,