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Core mold-free upwards-drawing electromagnetic continuous pipe-casting process

An electromagnetic and continuous technology, which is applied in the field of coreless up-leading electromagnetic continuous casting pipe, can solve the problems of large energy consumption and defects in the inner wall of the pipe, and achieve the effect of improving the quality of the inner wall and saving energy

Inactive Publication Date: 2005-01-12
上海上大众鑫科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the continuous casting of traditional metal pipes, the liquid metal is in contact with the inner wall of the existing mold, resulting in various defects in the inner wall of the pipe, and only large-diameter pipes can be continuously cast
Tubes with small diameters can only be produced by further rolling, which consumes a lot of energy

Method used

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  • Core mold-free upwards-drawing electromagnetic continuous pipe-casting process
  • Core mold-free upwards-drawing electromagnetic continuous pipe-casting process

Examples

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Embodiment 1

[0007] Embodiment one: see figure 1 , The main structure of the present invention is cast pipe 1, pulling roll 2, rotating platform 3, crystallizer 4, cooling channel 16, separation ring 7 and electromagnetic coil 9. The cooling water channel 16 is spiral and is located inside the crystallizer 4 , the separation ring 7 is located at the lower edge of the crystallizer 4 , and the outside of the crystallizer is an electromagnetic coil 9 . The molten metal 10 passes through the nozzle 11 from the tundish 12, passes through the connecting device 6, enters the crystallizer from the lower mouth of the crystallizer 4, contacts the inner wall of the crystallizer, and begins to solidify; The induction coil 9 in the mold is energized, and the electromagnetic field is applied to the molten metal in the mold; after a certain period of time, when the solidified layer of the molten metal in the mold reaches a certain thickness, that is, the required thickness of the tube wall, the operating...

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Abstract

During the upwards drawing pipe casting process, some electromagnetic field is applied to the molten metal inside the mould, and the mould is made to move relatively to the pipe. The embodiment consists of a tractor,a mould, a cooling water channel, a separating ring and a electromagnetic winding. The spiral cooling water channel is inside the mould and the separating ring is in the lower edge of the mould.

Description

technical field [0001] The invention relates to an upward-leading electromagnetic continuous casting method without a core mold. Background technique [0002] In the continuous casting of traditional metal pipes, the liquid metal is in contact with the inner wall of the existing crystallizer, resulting in various defects in the inner wall of the pipe, and only large-diameter pipes can be continuously cast. Tubes with small diameters can only be produced by further rolling, which consumes a lot of energy. Contents of the invention [0003] The invention is based on the principle of metal solidification, and continuously casts pipes with a certain wall thickness by adjusting the control parameters in the pipe drawing process. Adopting up-drawing casting tube, canceling the inner core mold, using electromagnetic field to constrain and push the liquid metal to make it into a column, thereby improving the quality of the inner wall of the tube, and can continuously cast small-d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D11/04B22D27/02
Inventor 任忠鸣方志成
Owner 上海上大众鑫科技发展有限公司