A spray preparation device for amorphous alloy strip and its preparation method

A technology of amorphous alloys and preparation devices, which is applied in metal processing equipment, manufacturing tools, casting equipment, etc., can solve problems such as uneven surface of amorphous alloy strips, complex equipment structures, and incomplete structures, and achieve smooth surfaces, The effect of simple equipment structure and short process route

Active Publication Date: 2017-05-24
江西中磁科技协同创新有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The double-roller spraying mode overcomes the key technology that the thickness of the amorphous strip is difficult to control in the single-roller spraying mode, and achieves precise and controllable control. However, in the twin-roller spraying mode, the nozzle mouth sprays In the process of molten steel, the molten steel flow column between the nozzle mouth and the cooling copper roller surface cannot form a stable molten pool. At this time, the molten steel flow column sprayed is in a turbulent state with large fluctuations, which will inevitably lead to the formation of a molten steel on the surface of the amorphous alloy strip. Serious quality problems such as unevenness and loose texture. Although the surface of the amorphous alloy strip has been greatly repaired by the extrusion roll of the double-cooled copper roll, there are still some defects.
The structure of the equipment in the twin-roller spraying mode is relatively complicated, and the operation is inconvenient

Method used

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  • A spray preparation device for amorphous alloy strip and its preparation method
  • A spray preparation device for amorphous alloy strip and its preparation method
  • A spray preparation device for amorphous alloy strip and its preparation method

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Experimental program
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Embodiment 1

[0034] The technical scheme of the device for preparing amorphous alloy strips of the present invention is as follows, as Figure 3-4 Shown:

[0035] A spray preparation device for amorphous alloy strips, comprising: a sealing cover 1, an air pressure tube 2, a ladle 3, a nozzle opening 5, a pressure wheel 6, a molten steel guide groove 7, a cooling copper roller 10, a pressure regulating spring 11 and a limiter position device 12; the pressure roller 6 is close to the vertical top of the cooling copper roller 10; the nozzle mouth 5 is integrated with the molten steel guide groove 7 and is opened at the upper end of the molten steel guide groove 7, and the width is the same as that of the amorphous material to be sprayed. The width of the alloy strip 9 is consistent; the molten steel guide groove 7 is installed at the junction of the ladle wall and the ladle bottom with the nozzle mouth 5 facing upward, and the nozzle mouth 5 penetrates the ladle wall and is transparent to the i...

Embodiment 2

[0037] The device and method for preparing amorphous alloy strips of the present invention:

[0038] 1) Pressure wheel and device. ①The pressure wheel 6 is a small zirconia wheel with high temperature resistance and high hardness. The pressure roller 6 is assembled on the vertical top close to the cooling copper roller 10, and driven by the cooling copper roller 10, it rotates at a high speed at the same line speed; The height of the limit is equal to the required thickness of the amorphous alloy strip 9 to be sprayed, and the precision of the limit device is ±3 μm. Before spraying amorphous alloy strips, it is necessary to pre-set and adjust to a good limit height. In the no-load state before spraying, the pressure roller 6 and the cooling copper roller 10 are seamlessly attached, and the cooling copper roller drives the pressure roller to rotate at a high speed and at a linear speed of 20-40m / s. When spraying, the amorphous alloy steel At the moment of rapid quenching, t...

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Abstract

The invention discloses a jet preparation device of an amorphous alloy strip and a preparation method thereof. The preparation device comprises a sealing cover, a pneumatic tube, a steel ladle, a nozzle opening, a press wheel, a molten steel guide groove, a cooling copper roller, a pressure adjusting spring and a limiting device. According to the device and the method for preparing the amorphous alloy strip through the molten steel guide groove, the fixed-thickness press wheel and lateral pressure jet, the amorphous alloy molten steel jetted through the nozzle opening can easily form a larger liquid storage buffer puddle between the press wheel and the molten steel guide groove, accurate limiting is performed by using the press wheel, and the molten steel is squeezed through the press wheel to a certain extent at the moment of rapid quenching cooling, so the flat surface and the fine texture of the amorphous alloy strip prepared through jet are improved better, and accurate controllable thickness of the amorphous alloy strip is realized. Both the ultrathin strip of 15 mum and the relative thick strip of 40 mum can be prepared, the thickness span of the amorphous alloy strip is large, and the application scope is wide.

Description

technical field [0001] The invention belongs to the technical field of preparation of amorphous alloys, and in particular relates to a spray preparation device for amorphous alloy strips and a preparation method thereof. Background technique [0002] As a new type of soft magnetic material, amorphous alloy strips can be prepared into components such as switching power supplies, transformers, reactors, transformers, and sensors, and are widely used in power, communications, and home appliances instead of traditional soft magnetic materials such as silicon steel sheets. , military and other industries. With the development of components to high frequency, miniaturization, and high-end, higher quality requirements are put forward for amorphous alloy strips. The surface of amorphous alloy strips should be smooth and the structure should be fine. The application requirements of precision and control have become a development trend. [0003] At present, there are no more than tw...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D11/06B22D41/50
CPCB22D11/06B22D41/50
Inventor 毛先华朱长生吴进方
Owner 江西中磁科技协同创新有限公司
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