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A method for measuring thermal resistance of mold slag film in continuous casting mold

A continuous casting crystallizer and crystallizer technology, applied in the field of iron and steel metallurgy continuous casting, can solve the problem of difficult measurement of interface thermal resistance

Active Publication Date: 2019-08-27
CENT SOUTH UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The invention is based on laboratory small steel continuous casting simulation experiments, combined with the actual working conditions in the continuous casting process, solves the problem that the interface thermal resistance is difficult to measure

Method used

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  • A method for measuring thermal resistance of mold slag film in continuous casting mold
  • A method for measuring thermal resistance of mold slag film in continuous casting mold
  • A method for measuring thermal resistance of mold slag film in continuous casting mold

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Embodiment Construction

[0067] In this example, the method of measuring the thermal resistance of the mold slag film in the continuous casting mold is as follows:

[0068]1. Based on the mold simulator of the School of Metallurgy and Environment, Central South University, a small-scale continuous casting experiment in the laboratory was carried out to simulate the steel continuous casting process in the factory. The continuous casting parameters are set, and the parameters are shown in Table 1; the steel used in the experiment process is 304 stainless steel, and its composition is listed in Table 2; the mold slag composition used is shown in Table 3.

[0069] Table 1 Crystallizer vibration parameters and pouring temperature

[0070]

[0071] Table 2 304 steel composition (wt%)

[0072]

[0073] Table 3 Mold Flux Composition (wt%)

[0074]

[0075] 2. The temperature collector collects the temperature data measured by the thermocouples in the copper mold of the crystallizer in real time and...

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Abstract

The invention provides a method for measuring heat resistance of a covering slag film in a continuous casting crystallizer. The method is used for studying the heat transfer performance of covering slag permeating into the position between the continuous casting crystallizer and a blank shell. According to the method, based on a laboratory small continuous casting experiment, the actual work conditions in the continuous casting process are combined, and the problem that the heat resistance of the covering slag film is hard to measure accurately is solved.

Description

technical field [0001] The invention relates to a method for measuring the thermal resistance of mold slag film in a continuous casting crystallizer, belonging to the technical field of iron and steel metallurgy continuous casting. Background technique [0002] The crystallizer is the most important part of continuous casting, it is a special tapered wall, bottomless water-cooled mold. There are cooling devices inside it, some of which are tube mold isolation water gap cooling, and some are spray water spray cooling, the purpose of which is to cool down the casting slab. As one of the most important functions of the crystallizer, the research on the cooling and heat transfer function is due to the influence of the relatively harsh working environment of the crystallizer itself (high temperature of about 1500 ° C, periodic vibration of the crystallizer, instantaneous flow in an unstable state, etc. ) presents great difficulties. [0003] As an indispensable auxiliary materi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D2/00B22D11/111
Inventor 王万林黄道远张凯旋余杰路程钱海瑞
Owner CENT SOUTH UNIV