Metal electroslag remelting smelting atmosphere protection method

An electroslag remelting and metal technology, which is applied in the field of metal smelting, can solve the problems of large space between the gas nozzle and molten metal, difficulty in protecting the effect, and difficulty in exhausting the air, so as to achieve stable and reliable operation, improve the smelting effect, and implement simple effect

Active Publication Date: 2015-03-25
宝武特冶航研科技有限公司
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Problems solved by technology

However, during the smelting process of the electroslag furnace, the metal liquid level will have a process of rising as the electrode rod descends, so the atmosphere protection device needs to be set at a position higher than the liquid level in order to avoid interference with the rising liquid level. There is a large space between the gas jet and the molten metal, it is difficult to exhaust the air, and it is difficult to achieve a good protective effect

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  • Metal electroslag remelting smelting atmosphere protection method

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Embodiment Construction

[0026] The present invention will be further described in detail below in combination with specific embodiments.

[0027] A metal electroslag remelting smelting atmosphere protection method, the method is that in the metal electroslag remelting smelting device, a protector is provided to connect with an inert gas source, and the metal electroslag remelting is smelted through the protector during the smelting process The inside of the device sprays inert gas for atmosphere protection. The key point is that the protector is placed near the top of the metal electroslag remelting liquid during smelting, and it is linked with the electrode rod so that the liquid level rises when the electrode rod gradually descends. At this time, the protector and the liquid level rise in linkage, and make the protector and the liquid level within a fixed height range, so as to ensure the atmosphere protection effect of the liquid level.

[0028] More specifically, when the present invention is imp...

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Abstract

The invention discloses a metal electroslag remelting smelting atmosphere protection method. According to the method, a protector and an inert gas source, which are connected with each other, are arranged in a metal electroslag remelting smelting device, and a protector is used for spraying inert gas into the metal electroslag remelting smelting device to carry out the atmosphere protection in the smelting process. The metal electroslag remelting smelting atmosphere protection method is characterized by arranging the protector at the position near the part above a metal electroslag remelting solution when in smelting, and linking the protector to an electrode rod, so that when the electrode rod gradually falls and the liquid surface rises, the protector is linked to the liquid surface to rise, and the protector and the liquid surface stay in a fixed height range so as to guarantee the atmosphere protection effect of the liquid surface. By adopting the method, the follow-up atmosphere protection can be realized along with the rising of the liquid surface. The method has advantages of simplicity in implementation, stability and reliability in operation and good atmosphere protection effect; moreover, the smelting effect can be improved.

Description

technical field [0001] The invention relates to a metal smelting technology, in particular to an atmosphere protection method for metal electroslag remelting smelting. Background technique [0002] Metal electroslag furnace (also known as electroslag remelting furnace) is a kind of metallurgical equipment that uses the resistance heat generated when current passes through slag as a heat source for smelting. Its structure mainly includes a furnace-like crystallizer as a whole, located on one side of the A vertical column is provided above the column, and a transverse cantilever is arranged on the horizontal cantilever, and an electrode rod extending downward into the crystallizer is installed on the horizontal cantilever against the crystallizer by the electrode rod chuck. [0003] When the electroslag furnace is smelting, the electroslag is put into the crystallizer, and a slag pool to be melted is formed above the crystallizer. The electrode rod chuck is used to clamp the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B9/18C22B9/05
Inventor 吴建军秦洪伟
Owner 宝武特冶航研科技有限公司
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