A process for preparing amorphous alloy strip by melting alloy master ingot
An amorphous alloy and alloy technology, which is applied in the field of amorphous alloy material preparation technology, can solve the problems of poor production continuity and strip fracture, and achieve the effects of good soft magnetic properties, not easy to fracture, and good production continuity.
Active Publication Date: 2019-05-31
江苏轩辕特种材料科技有限公司
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Problems solved by technology
[0003] However, conventional preparation methods can only prepare thicker amorphous alloy strips, that is, the molten alloy liquid is directly sprayed from a high-speed nozzle onto a circular cooling copper roller, and the cooling copper roller rotates at a high speed and is rapidly cooled to make the molten alloy Liquid rapid solidification forming, made of amorphous alloy magnetic strip with a certain thickness; when the amorphous alloy strip with a specific composition is prepared, if the thickness is small, the production continuity will be poor, and the strip is more likely to break
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specific Embodiment
[0016] A process for preparing an amorphous alloy strip by melting an alloy master ingot provided in this embodiment includes the following steps:
[0017] Step 1. Remove the oxide layer on the surface of the magnetic material alloy master ingot, and the magnetic material alloy master ingot contains the following elements by mass percentage: silicon element 16%-18%, boron element 8%-11%, carbon element 2.0%-2.5% , chromium element 1.7%~2.1%, aluminum element 1.5%~1.8%, manganese element 0.5%~0.8%, and iron element in the balance.
[0018] Step 2. Put the magnetic material alloy master ingot into the airtight intermediate frequency induction melting furnace, then evacuate the interior of the intermediate frequency induction melting furnace, and then heat the magnetic material alloy master ingot to 1350-1400 ° C through the intermediate frequency induction melting furnace, After the magnetic material alloy master ingot is fully melted, it is guided into the alloy casting tundish...
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Abstract
The invention discloses a process for preparing an amorphous alloy strip by melting an alloy master ingot. The process comprises the following steps that a surface oxidation layer of the magnetic material alloy master ingot is removed, and the magnetic material alloy master ingot comprises silicon, boron, carbon, chrome, aluminum, manganese and iron; the magnetic material alloy master ingot is put into an airtight medium-frequency induction melting furnace and is heated to 1,350-1,400 DEG C and then guided into an alloy casting tundish; the upper end of the alloy casting tundish is sealed and is connected with the medium-frequency induction melting furnace, and the lower end of the alloy casting tundish is arranged in a closed single-roll quick quenching sealing bin; the air pressure in the single-roll quick quenching sealing bin is 0.02-0.04 MPa higher than the air pressure in the medium-frequency induction melting furnace, then molten alloy in the alloy casting tundish is poured to the roll surface of a quick-quenching single roll, and the amorphous alloy magnetic strip is formed. By the adoption of the process, the amorphous alloy strip with the small thickness can be prepared, the production continuity is good, and the strip is not likely to break.
Description
technical field [0001] The invention relates to the technical field of an amorphous alloy material preparation process, in particular to a process for preparing an amorphous alloy strip by melting an alloy mother ingot. Background technique [0002] Most of the amorphous alloy magnetic materials in the prior art contain metal elements with higher prices such as cobalt, vanadium, yttrium, molybdenum, gallium, etc., thereby increasing the production cost of the amorphous alloy magnetic material, which is not conducive to the development of the amorphous alloy magnetic material. Promote apps. An amorphous alloy magnetic material mainly composed of silicon, boron, carbon, chromium, aluminum, manganese and iron is known through development, and has a lower raw material cost. [0003] However, conventional preparation methods can only prepare thicker amorphous alloy strips, that is, the molten alloy liquid is directly sprayed from a high-speed nozzle onto a circular cooling coppe...
Claims
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IPC IPC(8): C22C33/06C22C45/02B22D11/06
CPCB22D11/0611C22C33/003C22C33/06C22C45/02
Inventor 丁鸿飞胡昌才杨华荣
Owner 江苏轩辕特种材料科技有限公司