Method for continuously manufacturing high-silicon steel sheet and continuous casting device

A high-silicon steel sheet and high-silicon steel technology is applied in the field of melting preparation of silicon steel alloys, which can solve the problems of product compactness, high cost, shortened life and other problems, achieve small thickness variation, improve surface quality, and reduce impact. Effect

Active Publication Date: 2015-01-07
SHANGHAI UNIV
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this technology has a flexible manufacturing system with versatility and product diversity, and the thickness and shape of the product can be controlled, there are still problems with the compactness of the product and the cost is high
The CVD process is to use the high-temperature chemical reaction between the surface of the traditional oriented and non-oriented silicon steel sheet and the silicide to enrich Si on the silicon steel sheet, and then perform diffusion treatment to prepare high-silicon steel. Although the CVD process has been successful, it is still There are problems, such as high deposition temperature, high energy consumption, severe corrosion of equipment, shortened service life, and corrosion pits and unevenness on the deposition surface, which requires fu

Method used

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  • Method for continuously manufacturing high-silicon steel sheet and continuous casting device
  • Method for continuously manufacturing high-silicon steel sheet and continuous casting device

Examples

Experimental program
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Effect test

Embodiment 1

[0035] In this example, see figure 1 and figure 2 , a high-silicon steel sheet continuous casting device, mainly composed of a feeding device 2, a crucible 8, a continuous casting machine body and a heating control device, the crucible 8 contains molten metal 10, and the molten metal 10 is added to the crucible 8 through the feeding device 2 The heating control device is composed of a heating body 9 and a heating power supply 17. The heating power supply 17 supplies power to the heating body 9. The heating body 9 is arranged outside the crucible 8 to heat the molten metal 10. The feeding control system of the feeding device 2 , make the surface of the molten metal 10 in the crucible 8 stable, and keep the liquid level of the molten metal 10 in the crucible 8 stable. Between the outer wall and the inner wall of the heat insulating sleeve 11, the continuous casting machine body is mainly composed of a magnetic field generating device, a silicon steel sheet continuous casting s...

Embodiment 2

[0040] This embodiment is basically the same as Embodiment 1, especially in that:

[0041] In this embodiment, the main body of the continuous casting machine is placed in a vacuum environment through a vacuum pump. The vacuum pump is a Roots vacuum pump, and a regulating valve is connected in series at the air suction port to maintain the vacuum degree through the control of the regulating valve. Stable, so that the entire continuous casting process is in a vacuum environment, so that the continuous preparation of high-silicon steel sheets can proceed smoothly.

Embodiment 3

[0043] This embodiment is basically the same as Embodiment 1, especially in that:

[0044] In this embodiment, the cooling water enters the inner cavity of the water-cooled copper plate 3 from the water inlet pipe, and adopts the multi-input and multiple-outlet mode. The water-cooled copper plate 3 is made of red copper, which has a much better cooling effect than the commonly used water-cooled plate. Due to the large heat capacity of the copper material, it can exchange with the cooling water to the maximum extent, which improves the cooling rate of the molten alloy liquid. One end of the water-cooled copper plate 3 is connected to a 300Kw DC drive motor 16 and a series of controllable speed-regulating devices. The speed of the drive motor 16 is 5000 rpm; the other end adopts a water-sealed dynamic seal. The depth of contact between the toothed water-cooled copper plate 3 and the molten metal 10 can be continuously and accurately adjusted; by controlling the immersion depth o...

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Abstract

The invention discloses a method for continuously manufacturing a high-silicon steel sheet and a continuous casting device. Pure iron powder and silicon powder are placed in a molten pool in a certain mass percent for alloy melting preparation, the molten pool is located in a strong magnetic field area generated by a magnet yoke coil in the whole process, after alloy is molten and is evenly mixed, an upper toothed water cooling copper disc rotating at high speed achieves fast cooling, a high-silicon steel thin belt is formed, the sheet is blown open through an air cutter above the sheet and is reliably stripped from the copper disc, and therefore the aim of manufacturing the high-silicon steel sheet through a direct extraction method is achieved, and the high-silicon steel sheet stripped from the copper disc enters a lower collection chamber with a soft pad or an air pad. the thickness, internal quality and surface quality of the high-silicon steel sheet can be controlled by controlling the immersion depth of the tooth face of the water cooling copper disc and alloy melt, the cooling water flow of the water cooling cooper disc, the rotating speed of the water cooling copper disc and the magnetic field intensity of an outer reinforcing static magnetic field. The size of the tooth face of the water cooling copper disc is controlled to control the width and length of the high-silicon steel sheet.

Description

technical field [0001] The invention relates to a metal material preparation method and continuous casting device, in particular to a silicon steel alloy melting preparation method and continuous casting device, which are applied in the technical fields of rapid near-net shape preparation of silicon steel thin slices and alloy structure control. Background technique [0002] Silicon steel is the most widely used soft magnetic alloy in the electrical and telecommunication industry. Its silicon content is generally 1.5wt.-4.5wt.%. It occupies an important position in soft magnetic materials and is the basis for the development of the electric power and telecommunication industry Material. Especially for high-silicon steel, when the silicon content is 6.5wt.%, the resistivity of the silicon steel sheet increases, the eddy current loss decreases, and the magnetostriction coefficient tends to zero, thus showing excellent performance at higher frequencies. Therefore, this kind of...

Claims

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Application Information

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IPC IPC(8): B22D11/06B22D11/115
CPCB22D11/06B22D11/115
Inventor 钟云波刘春梅龙琼王怀郑天祥吴惠兴方怡鹏石亚杰
Owner SHANGHAI UNIV
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