Spray nozzle for spraying amorphous alloy ribbon

Abstract

The invention discloses a spray nozzle for spraying an amorphous alloy ribbon. The spray nozzle is arranged at the lower end of a spray bag and comprises a basal body, wherein an inner cavity of the basal body is arranged into a V shape; a spray seam of which the width is smaller than 0.3mm is arranged at the center of the V-shaped inner cavity; two air ways are symmetrically arranged at two sides of the V-shaped inner cavity on the basal body; and binding posts are separately arranged at two sides of the basal body and are connected with a positive electrode and a negative electrode of a transformer through leads. The spray nozzle has the advantages of simple structure, high temperature resistance, oxidation resistance, low possibility of blockage and capability of guaranteeing the quality of the ribbon.

Description

technical field [0001] The invention relates to the field of making amorphous alloy spray strips, in particular to an amorphous alloy thin strip nozzle. Background technique [0002] Amorphous alloy soft magnetic material is a new type of soft magnetic material developed in China in recent years. This alloy has replaced the application in new application fields that silicon steel sheet and ferrite cannot do. The soft magnetic alloy has excellent magnetic properties and can be manufactured The short process flow, energy saving and good environmental impact in the manufacturing and use process have attracted more and more attention from various fields. [0003] The production cost is low and it is very suitable for large-scale industrial production, and the output increases year by year. At present, amorphous alloy materials are mainly produced by single-roll rapid solidification technology. The smelted and qualified molten steel is poured on the surface of high-speed rotatin...

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Problems solved by technology

[0004] Low mechanical strength, poor toughness, easy to crack, low high temperature strength, the nozzle is easy to break and leak steel, it is difficult to reuse, and the impurities in the molten steel are easy to precipitate in the nozzle gap to block the nozzle. This is a very serious defect. To obtain For thinner amorphous strips, narrow nozzle slit nozzles should be used. However, the narrower the slit, the easier it is to clog, because the low melting point impurities and other elements in the molten steel are not completely treated, and the nozzles made of non-metallic materials It is most likely to continuously precipitate and block the gap, and there will be mesh burrs on the surface of the strip, etc.

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