A test device for simulating solidification of continuous casting slab and its application method

Abstract

A test device for simulating the solidification of continuous casting slabs and a method of use thereof. The test device includes a base, an induction heating furnace is provided on the base, an opening is provided at the bottom of the induction heating furnace, a piston is installed in the opening, and a frame The guide rod, the first lifting platform and the second lifting platform are respectively installed on the upper and lower parts of the frame guide rod. The first lifting platform is equipped with a first motor, a support platform and a vibration motor, and the support platform is equipped with a second motor. And the worm, the bottom end of the worm is equipped with pusher refractory bricks, the vibration motor is connected to the crystallizer through a connecting rod, there is a cavity in the middle of the crystallizer, the inside of the crystallizer is used for cooling water to enter and exit, and the second lifting platform is equipped with a third Three motors and screws. One end of the screw is connected to the second lifting platform, and the other end is connected to the piston. The water spray device cools the molded billet. The above-mentioned test devices and methods simulate the solidification process of continuous casting slabs in actual production to obtain slabs. The quality and microstructure of the slabs are studied and analyzed to guide actual production.

Description

technical field [0001] The invention relates to the application field of iron and steel continuous casting simulation test technology, in particular to a test device for simulating solidification of continuous casting slabs and a use method thereof. Background technique [0002] With the advancement of science and technology and the improvement of process conditions, my country's steel production has leapt to the leading position in the world. However, modern enterprises have higher and higher requirements for the performance of metal materials, and the manufacturing level of high-performance steel still needs to be improved. As a revolutionary technology in the steel industry, continuous casting has become an indispensable process for steelmaking. The occurrence of defects in the continuous casting process, including surface cracks, subcutaneous cracks, vibration marks, uneven quality, etc., will seriously affect the quality of steel and reduce the efficiency of enterprises...

AI Technical Summary

Problems solved by technology

[0004] To improve the quality of steel, it is necessary to improve the process conditions, control the solidification process of the metal in the continuous casting process, and obtain a refined grain structure. However, the high temperature and complex process factors of continuous casting make it very difficult to observe and study its solidification structure. The research on the billet quality is mainly through the analysis of the sample of the billet collected from the steel mill. Due to the continuity of actual production, there are certain limitations in the adjustment of the process parameters in the process of sample preparation, and the trial production process will It consumes a lot of manpower and material resources, and the unqualified steel structure will lead to a large amount of steel being scrapped. In order to improve the quality of steel and reduce the loss of trial production, simulation technology must be used

With the rapid development of computer technology today, computer simulation of the solidification process of continuous casting slabs has been realized, but the verification of the simulation results still requires sampling from steel mills, and the process is cumbersome

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