Electromagnetic multi-cyclone stirring and casting device

A stirring casting and electromagnetic device technology, applied in the field of casting, can solve the problems of inability to achieve internal and external temperature and composition exchange, failure to meet temperature and composition exchange requirements, radial penetration depth exchange of magnetic field, etc., to eliminate columnar crystals and Effects of coarse dendrites, reduction of macro-segregation and micro-segregation, reduction of delayed solidification and shell deformation

Pending Publication Date: 2020-01-14
SHIJIAZHUANG IDEA ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There are only two forms of existing electromagnetic stirring to stir the molten metal in the crystallizer: horizontal circulation and vertical oscillation of the molten metal (vertical linear). The horizontal circulation mainly exchanges the solution in the outer ring of the casting rod, which cannot achieve internal The temperature and composition of the surface are exchanged, and it is difficult to control the force. If it is too small, it will not be able to meet the temperature and

Method used

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  • Electromagnetic multi-cyclone stirring and casting device
  • Electromagnetic multi-cyclone stirring and casting device

Examples

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Embodiment 1

[0027] Embodiment 1: refer to figure 1 , the present invention provides a technical solution: an electromagnetic multi-swirl stirring casting device, including a water tank 7, a crystallizer 6 is installed inside the water tank 7, an electromagnetic device body 8 is installed outside the crystallizer 6, and the electromagnetic device body 8 includes a fixed rod 4. There are multiple fixed rods 4, which are divided into multiple groups. The top of each group of four fixed rods 4 is fixed with an iron core assembly 1 by screws, and the outer surface of the iron core assembly 1 is fixed with three reinforced salient poles. 3. The outer surfaces of the three reinforced salient poles 3 are wound with electromagnetic stirring coils 2, the outer surfaces of the reinforced salient poles 3 are wound with the same material and the same number of electromagnetic stirring coils 2, the electromagnetic device body 8 includes the iron core assembly 1, and the electromagnetic stirring coils C...

Embodiment 2

[0028] Embodiment 2: refer to Figure 2-4 , the electromagnetic stirring coil 2 is provided with a plurality, and is divided into multiple groups, and each group of three electromagnetic stirring coils 2 forms a C-type electromagnetic inductor 5, and a C-type electromagnetic inductor 5 is provided with a plurality, and each C-type The electromagnetic inductor 5 itself can form a complete swirling magnetic field. When the electromagnetic device body 8 is in use, the molten metal is subjected to the action of electromagnetic force to form a motion track. Every three coils of this device constitute a C-type electromagnetic inductor 5. Each C-type electromagnetic inductor 5 can form a complete swirl magnetic field by itself, and the C-type electromagnetic inductor 5 serves as a subunit swirl magnetic field. N C-type electromagnetic inductors form N swirl magnetic fields. Every two adjacent C-type The electromagnetic inductor 5 can synthesize a large swirling magnetic field, and al...

Embodiment 3

[0029] Embodiment 3: refer to Figure 5-6 , the electromagnetic device body 8 is installed in the lower part of the liquid cavity of the crystallizer 6, and is connected with the upper part of the water tank 7 by bolts. The electromagnetic device body 8 can also be installed below the crystallizer 6. When using the electromagnetic device body 8, the casting crystal The device 6 is installed in the water tank 7, the electromagnetic device body 8 is installed in the middle and lower part of the crystallizer 6 liquid cavity, and is connected with the upper part of the water tank 7 by bolts, and the water in the water tank 7 cools the electromagnetic stirring coil 2 while cooling the crystallizer 6 , when the crystallizer 6 is a short crystallizer 6, it can also be hung with the bottom of the crystallizer 6 according to actual conditions.

[0030] When in use, since each reinforced salient pole 3 of the stirrer is wound with the same material and the same number of electromagnetic...

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Abstract

The invention discloses an electromagnetic multi-cyclone stirring and casting device and relates to the technical field of casting. The electromagnetic multi-cyclone stirring and casting device comprises a water tank; a crystallizer is installed inside the water tank; an electromagnetic device body is installed outside the crystallizer; the electromagnetic device body comprises fixed rods; and themultiple fixed rods are commonly provided and are divided into a plurality of groups. According to the electromagnetic multi-cyclone stirring and casting device, by changing the direction and the strength of a magnetic field, the stirring direction and the stirring strength of molten liquid can be effectively adjusted, the flowing form and the flowing speed of the molten liquid are controlled, the temperature distribution of the molten liquid in the crystallizer is uniform, the uneven thickness of an initial solidified blank shell is inhibited, the delayed solidification and blank shell deformation are reduced, the device has an obvious effect on improving the quality of a continuous casting blank, due to the facts that grains are refined, structures are uniformly distributed, the volumeshrinkage is reduced and the hot cracking tendency is reduced, the shrinkage porosity tendency is basically eliminated, and the mechanical properties of castings are greatly improved.

Description

technical field [0001] The invention relates to the field of casting technology, in particular to an electromagnetic multi-swirl flow stirring casting device. Background technique [0002] With the development of continuous casting technology, people's requirements for casting quality have been continuously improved, and extremely harsh conditions have been put forward for the mechanical properties of slabs, the content of inclusions in slabs, and pores, especially for large-sized cast bars. Widely used in automotive panels, home appliances, ships, aerospace and other industries, not only requires uniform formability, but also puts forward higher requirements for surface quality. Electromagnetic stirring technology has become the current international technology to improve the performance of steel, aluminum and its alloys. One of the commonly used methods, electromagnetic stirring technology has attracted more and more attention, and has become a hot spot in electromagnetic ...

Claims

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Application Information

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IPC IPC(8): B22D11/115
CPCB22D11/115
Inventor 张艳国李广张烨贾晓兰
Owner SHIJIAZHUANG IDEA ELECTRIC
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