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Arc jet nozzle for producing amorphous thin belt

A technology of arc-shaped nozzles and thin strips, which is applied in the direction of casting molten material containers, manufacturing tools, metal processing equipment, etc., can solve the problems of poor strip surface at the edge of the strip, slow replacement speed of molten steel, and lower temperature of molten steel, so as to achieve no eddy current , simple structure, uniform exchange of molten steel

Inactive Publication Date: 2013-12-11
QINGDAO YUNLU ADVANCED MATERIALS TECH CO LTD
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Problems solved by technology

Due to the relatively large inner volume of this structure, the replacement speed of molten steel is slow; the design of the corner of the through hole makes it easy to form a dead zone during the pouring process of molten steel, resulting in a decrease in the temperature of the molten steel, which in turn leads to the edge banding of the sprayed strip. The surface is poor, there are burrs, and the strip is easy to narrow

Method used

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  • Arc jet nozzle for producing amorphous thin belt
  • Arc jet nozzle for producing amorphous thin belt

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Embodiment Construction

[0011] The present invention optimizes the internal structure of the nozzle in the prior art, and the nozzle uses boron nitride as the raw material for the nozzle, such as figure 2 As shown, the middle of the block material is horizontally hollowed out to form a cavity 202, and three supporting ribs 201 are reserved in the hollowed out part. In a specific embodiment, the edges of the cavity near the four vertical sides of the arc-shaped nozzle are all in the shape of a convex arc streamline. A spraying slot 203 is processed below the cavity, the length of the spraying slot is determined by the width of the produced strip, and the width of the spraying slot is in the range of 0.3-0.9 mm. In a specific embodiment, the four inner corners of the curved nozzle cavity located on the four vertical sides of the curved nozzle are also curved, so as to avoid the formation of right-angled structures in the prior art when flowing through molten metal. Dead zones and vortex phenomena.

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Abstract

The invention provides an arc jet nozzle for producing an amorphous thin belt. The middle of the arc jet nozzle is transversely hollowed out to form a cavity. One or more reinforcing ribs are reserved at the hollowed-out position. The edges, close to the four stand sides of the arc jet nozzle, of the cavity are all in convex arc streamline shapes. A jet seam is reserved below the cavity. According to the arc jet nozzle for producing the amorphous thin belt, the internal structure of a jet nozzle in the prior art is optimized, the amount of liquid steel inside the jet nozzle is small, the temperature field is stable, no eddy and no dead zone exist, the belt material yield is high, and the belt material production efficiency is improved.

Description

technical field [0001] The invention relates to a metal thin strip manufacturing technology, in particular to a nozzle with small deformation for producing amorphous alloy thin strip. Background technique [0002] Amorphous alloy materials have excellent comprehensive properties, such as high performance, high strength, wear resistance, corrosion resistance, high resistivity, high magnetic permeability, low loss, etc. Because of its excellent performance, it has developed rapidly in recent years, especially in output filter reactors in high-frequency and high-power switching power supplies, and main transformers in uninterruptible power supplies. [0003] At present, the amorphous strip is mainly produced by the single-roll quick quenching method. The molten steel is poured on the high-speed rotating cooling roll through the nozzle to obtain the required width and thickness of the amorphous alloy strip. The width of the amorphous ribbon depends on the jet slot width of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D11/06B22D41/50
Inventor 庞靖王玲姜桂君
Owner QINGDAO YUNLU ADVANCED MATERIALS TECH CO LTD
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