Industrial rotary kilns are widely used in cement, metallurgical pellets, active lime, chemical and other industries. The supporting roller is one of its core parts. It bears the weight of the whole kiln body through the opposite rolling movement with the kiln tyre, and is in the working environment...
1.Optimize the sprue The vertical sprue is changed to a “2” shape sprue, that is, a bend is set on the sprue, the sprue is set to a “2” shape bend at 1/3 of the top to bottom, and three ingates are designed, as shown in Figure 1, to...
According to the structural characteristics of the product and referring to the results of similar products after production, two process designs were carried out for this end cap in the simulation phase, the small mouth up scheme and the large mouth up scheme, as shown in Figure 1. Firstly,...
The steam turbine end cover is used to seal the steam in the condensate. It has high requirements on the airtightness and compression resistance of sand castings. It is necessary to carry out the leak detection of the compressor. During the use process, the requirements for the internal quality...
The setting of simulation pretreatment mainly includes the selection of simulation items, material selection rules, heat exchange conditions, pouring conditions and general parameters. For the solidification simulation process of sand casting, the main setting process is as follows: (1) Simulation project selection In the simulation process of flat and...
In order to make the simulation results compare with the measured temperature curve, the established geometric model should be the same as the test model. The annular sand castings with internal and external radius of 60 / 110mm are selected for the simulation verification test, with thickness of 50mm...
Combined with the actual solidification process of sand castings, the three-dimensional model is established through UG, and ProCAST is used to simulate the solidification and cooling process of sand castings, in which the interface heat transfer coefficient calculated by the inverse problem is used for simulation: the interface heat...
According to the macroscopic definition formula of interface heat transfer coefficient, it is necessary to know the temperature T1 of mold unit 1 when the interface heat flow and the surface temperature of sand casting are known. The temperature T1 of unit 1 at the interface of sand mold...
The temperature data at the thermocouple measured in the experiment are sorted into the data form required by the inverse calculation program, and each group of data is imported into the MATLAB inverse calculation program to obtain the inverse calculation data such as interface heat flow, sand mold (core)...
The three groups of pouring test temperature data of ring sand casting during solidification are as follows: Figure 1, figure 2 and figure 3 show the measured temperature data of thermocouple of ring sand casting with inner / outer radius ratio of 30mm / 80mm, 50mm / 100mm and...