Process of detecting heat conductivity coefficient of protecting slag

A detection method and technology for mold flux, which are applied in the fields of material thermal conductivity, electrical digital data processing, special data processing applications, etc., can solve the difficulty in measuring heat flux q, the ability of mold flux to control heat transfer cannot be accurately determined, and it is difficult to accurately measure and other problems to achieve stable and normal performance

Inactive Publication Date: 2007-10-03
BAOSHAN IRON & STEEL CO LTD
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Problems solved by technology

However, the measurement of heat flux q is difficult, and it is generally difficult to measure accurately
This leads to the inaccurate determination of the control heat transfer capacity of the mold flux, which affects the precise control of the heat transfer of the mold

Method used

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  • Process of detecting heat conductivity coefficient of protecting slag
  • Process of detecting heat conductivity coefficient of protecting slag
  • Process of detecting heat conductivity coefficient of protecting slag

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Embodiment Construction

[0032] Referring to Figure 1 and Figure 2, the mold slag temperature conductivity detection device consists of three parts: a temperature control system, a thermocouple, a crucible lifting system, and a temperature acquisition system. Among them: the temperature control system adopts temperature programming, and the heating elements used are silicon carbide rods 3, six in total, and the graphite crucible 4 is used to hold the mold powder. The outer diameter of the crucible is 100mm, the inner diameter is 80mm, and the height is 100mm. The lifting system is divided into two parts: the crucible lifting system 5 and the thermocouple lifting system 1; the crucible lifting system 5 is used to push the crucible 4 filled with molten mold slag out of the furnace; the thermocouple lifting system 1 is used to lift the thermocouple for temperature measurement 6 is inserted into the liquid slag, and is controlled manually or electrically. In this embodiment, the manual mode is adopted, and...

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Abstract

The present invention relates to detection of protecting slag for steel casting, and is especially process of detecting heat conductivity coefficient of protecting slag. The present invention detects the heat conductivity coefficient of protecting slag with several thermocouples arranged in certain intervals to measure the temperature in the sample period. The present invention can measure the heat conductivity coefficient of protecting slag and its changing trend and heat transmission controlling capacity.

Description

(1) Technical field [0001] The invention relates to a detection method for the heat transfer capability of the mold slag in the molten steel casting process, in particular to a detection method for the temperature conductivity coefficient of the mold slag. (2) Background technology [0002] Mold slag is the last technological element in the steelmaking process. It has multiple functions such as thermal insulation, preventing molten steel oxidation, absorbing inclusions, lubricating and controlling heat transfer, and is an important guarantee for smooth process and billet quality. Usually mold flux is CaO, SiO 2 Mainly binary system, with external CaF 2 、Na 2 O. Li 2 Flux such as O, and a small amount of Al 2 o 3 , MgO, MnO, FeO and other components, so as to achieve a suitable melting temperature and viscosity. When the mold slag is added to the mold of the continuous casting machine, it evenly covers the surface of the molten steel, which not only reduces the surface ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/20G01N25/18G06F19/00
Inventor 张晨蔡得祥刘继鸣朱祖民
Owner BAOSHAN IRON & STEEL CO LTD
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