Hydraulic simulation device capable of controlling ingot segregation and method

A technology of hydraulic simulation and ingot casting mold, which is applied in the fields of ingot casting, metallurgy and casting, which can solve the problems of water flow disturbance, difficult installation, low sensitivity and response speed, etc., and achieve the effects of small flow disturbance, real-time acquisition and compact device

Active Publication Date: 2014-09-24
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These instruments have specific requirements for the type of measuring solution, and are not universal for the selected solution
Moreover, these devices are not easy to install in the hydraulic model, and the probes are large and will cause a large disturbance to the water flow after installation, which affects the accuracy of the hydraulic simulation experiment; in addition, the sensitivity and response speed of these devices are low, and it is difficult to reflect the concentration. Change in real time

Method used

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  • Hydraulic simulation device capable of controlling ingot segregation and method
  • Hydraulic simulation device capable of controlling ingot segregation and method
  • Hydraulic simulation device capable of controlling ingot segregation and method

Examples

Experimental program
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Embodiment 1

[0036] (1) According to figure 1 The schematic diagram of the device shown is connected to various devices: fix the first U-shaped fiber optic probe 31 on the inner wall of the water outlet 7 of the casting tundish, fix the second U-shaped fiber optic probe 32 and the third U-shaped fiber optic probe 33 on the On the probe bracket 4; in this embodiment, the optical fiber line selects a standard M6 reflective optical fiber pair, and the distance between the optical fiber signal transmitter 41 and the reflective surface 44 is 10 mm;

[0037](2) Choose methylene blue and prepare 7 kinds of colored aqueous solutions with different concentrations: 0 mg / L (distilled water), 20mg / L, 40mg / L, 50mg / L, 100mg / L, 200mg / L, 400mg / L ;Starting from the methylene blue solution of 0 mg / L (distilled water), according to the order of increasing concentration, test the light transmittance of the methylene blue aqueous solution of each concentration in the following way: inject the methylene blue aq...

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Abstract

The invention discloses a hydraulic simulation device capable of controlling ingot segregation and a method, which belong to the field of casting, ingot casting and metallurgy. The device adopts a structure that water pumps are positioned in casting ladles and connected with flowmeters by pipelines; the flowmeters are connected with casting tundishes by flexible pipes; stoppers are plugged into water outlets of the casting tundishes; and fiber-optics probes are mounted at the water outlets of the casting tundishes and on a probe bracket positioned on the bottom surface in an ingot mold organic glass model and connected with signal amplifiers by optical fiber cables. The method is accomplished by the device and comprises the steps of obtaining a standard curve through colored aqueous solutions in different concentrations, injecting the coloured aqueous solutions in the different concentrations of the same solute into the casting ladles, starting a system, obtaining readings of the signal amplifiers, and finally obtaining a concentration variation curve of the colored solutions at different positions by combining the standard curve. The device and the method can use the colored solutions to simulate the diffusion and segregation of the solute in a metal bath, the sensitivity is high, and the interference with liquid flow is small.

Description

technical field [0001] The invention belongs to the fields of casting, ingot casting and metallurgy, and particularly relates to a hydraulic simulation device and method for ingot segregation control. Background technique [0002] In the production of castings, ingots and continuous casting, the flow of liquid metal directly affects the quality of the product. Because the flow of liquid metal is difficult to observe directly, water simulation is usually used for research. Segregation is one of the main problems in the production of ingots, especially large steel ingots. Segregation is not only related to the flow of liquid metal, but also related to the diffusion of solute; therefore, the existing hydraulic simulation methods are difficult to meet the needs of ingot segregation research. The multi-ladle pouring technology is a new technology for segregation control of large steel ingots, that is, by controlling the sequential pouring of multiple ladles of liquid metal with...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D37/00G01M10/00
Inventor 康进武聂刚董超龙海敏郝小坤黄天佑
Owner TSINGHUA UNIV
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