Plunger type equal-liquid-level pressure amorphous strip maker

Abstract

The invention discloses a plunger type equal-liquid-level pressure amorphous strip maker. According to the invention, liquid level height is used to generate pressure (0.3-0.4kg / cm<2>) so as to make an amorphous or amorphous nanocrystalline strip (less than 30 mu m), and a movable plunger is used to keep the liquid level height. The plunger type equal-liquid-level pressure amorphous strip maker comprises a non-vacuum induction furnace (71), a pressure sensor (72), a molten steel tank (73), a liquid level height gauge (74), a nozzle bag (75), a heating globar (76), a cooling roller (77), a plunger (78), a plunger lifting rod (79), a magnetic scale (710) and a lifting motor (711). The plunger type equal-liquid-level pressure amorphous strip maker has the characteristics of accurate pressure and convenience in operation, and has the advantages of low cost and high yield as compared with a strip injection machine using gas to apply pressure.

Description

technical field [0001] The invention relates to a tape-making device for manufacturing amorphous alloy or amorphous nano-crystalline soft magnetic alloy, in particular to a plunger type equal liquid level pressure amorphous tape-making machine. Background technique [0002] Since 1960, Professor Guwez in the United States invented the rapid quenching process (cooling speed at 10 6 °C / s) since the preparation of Au-Si series amorphous alloys, due to its microstructure, efficient preparation process, and excellent material properties, it has been paid special attention by material physicists and industry circles. In 1979, Allied-Signal Company of the United States developed the broadband rapid quenching technology of amorphous alloy, which made the large-scale production of amorphous alloy strip possible. In 1989, Allied-Signal Company of the United States had an annual production capacity of 60,000 tons of amorphous strips, of which the representative brand was 2605S-2 and t...

AI Technical Summary

Problems solved by technology

but is not currently running

In 2009, a company in Beijing also introduced this technology, but the equipment is still being debugged

Since the molten steel contact part is made of graphite, the molten steel has a large corrosion of graphite, and a large amount of carbon dissolved in the molten steel will pollute the molten steel and affect the magnetic properties of the amorphous strip

Due to the use of induction heating to remelt the master alloy in the nozzle package, there is also the problem of unstable roll gap. At present, this technology is not yet mature.

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