An experimental simulation device and method for studying the solidification process of metal melt under the condition of temperature field-flow field coupling
An experimental simulation, metal melt technology, applied in teaching models, educational appliances, instruments, etc., can solve the problem of not providing flow field simulation, deviation, etc., to achieve the effect of increasing the feasibility of casting research experiments and a reliable experimental reference.
Active Publication Date: 2018-11-27
GONGHUI METALLURGY EQUIP TECH SUZHOU CO LTD
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Problems solved by technology
At the same time, because the actual metal solidification is a non-equilibrium process, it is theoretically speculated that the metal solidification process also has a certain deviation.
[0003] Chinese invention patent (CN104226952A) uses the method of directional solidification to simulate the solidification process of the metal melt in the continuous casting slab casting process. The temperature field of the structure is relatively simple, and it does not provide flow field simulation. Simulation of Casting Process without Vigorous Volume Flow
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[0040] Below in conjunction with example, the present invention is further described as follows. Such as figure 1 , and combined with figure 2 and image 3 shown.
[0041] 1). Perform geometric modeling on the large castings under study, and simulate the casting and solidification process of large castings with the finite element model that has verified the validity of the model for small castings;
[0042]2). Select typical parts that are prone to casting defects, perform 3D modeling on them, and prepare ceramic mold 1 according to the 3D model;
[0043] 3). According to the finite element simulation results, the temperature and flow field characteristics of the built 3D model on the large casting are refined into the boundary conditions and variables of the experimental simulation, and input into the control computer 6 of the experimental simulation device;
[0044] 4). Install a temperature control unit 3 on the surface of the ceramic mold 1 and connect it to the contr...
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The invention discloses an experiment simulation device and method for studying the solidification process of a metal melt under a temperature field and flow field coupled condition. The device comprises a ceramic mold, wherein a temperature control assembly consisting of a plurality of temperature control units is mounted on the surface of the ceramic mold, the temperature control assembly is connected with a control computer, and heat insulating end plates are arranged at the two ends of the ceramic mold. The experiment simulation device further comprises a melt flow field driving device imbedded at the upper part of the ceramic mold. The temperature control assembly is connected with the control computer through a computer connecting port, and the computer connecting port is closely mounted with the temperature control assembly. The temperature control units comprise a cooling unit, a temperature measurement unit and a heating unit. The melt flow field driving device is an electromagnetic or mechanical pump.
Description
technical field [0001] The invention belongs to the technical field of metallurgical research equipment, and in particular relates to an experimental simulation device and method for studying the solidification process of a metal melt under the coupled condition of a temperature field and a flow field. Background technique [0002] With the rapid development of the national economy, the demand for large castings and forgings in the fields of metallurgy, energy, transportation and chemical industry is increasing day by day, and the quality requirements are also increasing, especially in the fields of advanced energy, aerospace and other fields. In the field of advanced energy, although my country has the ability to design and manufacture conventional supercritical units, there is still a big gap between China and foreign countries in the preparation technology of large castings and forgings. According to my country's "Large Casting and Forging Industry Twelfth Five-Year Plan"...
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IPC IPC(8): B22D27/04B22D27/02G09B25/02
Inventor 夏明许
Owner GONGHUI METALLURGY EQUIP TECH SUZHOU CO LTD