Optimization of Sand Casting Process for Large Supporting Roller
Industrial rotary kilns are widely used in cement, metallurgical pellets, active lime, chemical and other industries. The supporting roller is […]
Industrial rotary kilns are widely used in cement, metallurgical pellets, active lime, chemical and other industries. The supporting roller is […]
1.Optimize the sprue The vertical sprue is changed to a “2” shape sprue, that is, a bend is set on
According to the structural characteristics of the product and referring to the results of similar products after production, two process
The steam turbine end cover is used to seal the steam in the condensate. It has high requirements on the
The setting of simulation pretreatment mainly includes the selection of simulation items, material selection rules, heat exchange conditions, pouring conditions
In order to make the simulation results compare with the measured temperature curve, the established geometric model should be the
Combined with the actual solidification process of sand castings, the three-dimensional model is established through UG, and ProCAST is used
According to the macroscopic definition formula of interface heat transfer coefficient, it is necessary to know the temperature T1 of
The temperature data at the thermocouple measured in the experiment are sorted into the data form required by the inverse
The three groups of pouring test temperature data of ring sand casting during solidification are as follows: Figure 1, figure
This link should focus on the inspection of personnel skills and experience. The operator’s work certificate can be checked. At
The temperature data measured in the solidification process experiment is the basis for solving the interface back calculation. Therefore, it
These two processes are basically similar, which are the basis of the whole casting process and directly affect the box
1. The traditional sand casting method has low precision and cannot meet the production of complex parts such as turbine
The links are mainly from the molding, core making, box matching, pouring, cleaning and heat treatment processes. Firstly, the heat
18PA6B sand mold casting crankcase is made of nodular cast iron, with a gross weight of about 13T. Resin sand
Because sand casting is a special process, with many hidden links and collective operation mode, some processes cannot be directly
For each sand casting process scheme, sufficient experimental preparations need to be carried out before the temperature measurement experiment, which
18PA6B sand casting diesel generator sets are widely used in domestic nuclear power plants, such as CNNC Jiangsu Tianwan nuclear
In order to solve the interface heat transfer coefficient between sand casting and mold / core through numerical back calculation,
In the process of metal solidification during sand casting, the solidification volume contraction of metal and the thermal expansion of
According to the actual production situation of sand casting, on the basis of summarizing and analyzing the theory of sand
As early as 1940, computer technology had just started. Victor paschkis of Columbia University in the United States put forward
The simulation of sand casting process by computer is the frontier field of the development of global sand casting industry,
By using CAE technology flow, as long as the sand casting pattern, mold material, thermal physical parameters, solidification characteristics and
The main innovation of the research on the numerical simulation and application of sand casting molding process is that it
Sand casting industry is an ancient and very important traditional industry. Whether in developed countries or developing countries, sand casting
The thermophysical parameters of glass quartz sand mold used in actual sand mold casting production were tested by means of
The solidification simulation analysis of temperature field adopts “instantaneous filling”, that is, the influence of the pouring and filling process
Sand casting steel rolling stand is a typical large steel casting widely used. It is one of the important components