Preparation method for high-strength amorphous alloy magnetic strip material

Abstract

The invention discloses a preparation method for a high-strength amorphous alloy magnetic strip material. The preparation method comprises the following steps that amorphous alloy preparation materials including 4-6% of silicon, 2-3% of boron, 1.0-1.5% of aluminum, 0.8-1.1% of cobalt, 0.05-0.10% of yttrium, 0.2-0.4% of molybdenum, 0.10-0.15% of gallium and the balance ferrum are weighed; the amorphous alloy preparation materials are input into a medium frequency induction melting furnace with gas tightness to be subjected to heating and melting; and the melted alloy liquid is guided to flow into alloy pouring tundish, the alloy pouring tundish is provided with two alloy pouring mouths, the melted alloy liquid is poured to a roller face peak of a rapid-quenching single-roller through one of the two alloy pouring mouths, the melted alloy liquid is poured to the downstream position of the roller face peak of the rapid-quenching single-roller through the other alloy pouring mouth, the melted alloy liquids flowing out of the two alloy pouring mouths are cooled on the roller face of the rapid-quenching single-roller, and the amorphous alloy strip material is prepared. By means of the preparation method for the high-strength amorphous alloy magnetic strip material, the high-strength amorphous alloy magnetic strip material with larger thickness can be prepared.

Description

technical field [0001] The invention relates to the technical field of preparation technology of an amorphous alloy material, in particular to a preparation method of a high-strength amorphous alloy magnetic strip. Background technique [0002] Amorphous alloy material is a material with different microstructure compared with conventional crystalline alloy materials. It mainly makes the atomic structure in amorphous alloy material disorderly arranged through rapid condensation process, so that amorphous alloy The material has unique mechanical properties, magnetic properties, corrosion resistance and electrical properties, etc.; the amorphous alloy magnetic strip has excellent magnetic properties and is widely used in different fields such as power electronics, aerospace, transportation, electronic information and communication. Amorphous alloy magnetic strips have strict requirements on the preparation conditions, and the cooling rate must reach more than 100,000 degrees Ce...

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Problems solved by technology

Amorphous alloy magnetic strips have strict requirements on the preparation conditions, and the cooling rate must reach more than 100,000 degrees Celsius per second. If the cooling efficiency is insufficient or the thickness of the amorphous alloy magnetic strip is too large, it is easy to cause the amorphous alloy magnetic strip to Insufficient cooling rate reduces the amorphous structure inside the alloy magnetic strip, which affects the performance of the alloy magnetic strip; limited by the thickness of the amorphous alloy magnetic strip, some amorphous alloy materials with high magnetic properties are difficult to Preparation of continuous magnetic strips